Printing mechanism

Abstract

The invention relates to a printing mechanism. The printing mechanism can comprise a printing module, a supporting plate and a printing driving module. The printing module comprises a rotating frame, and a fixing part is arranged on the rotating frame and used for fixing a material box; a pivot is arranged on the supporting plate; one end of the rotating frame is rotatably connected with the pivot; the printing driving module comprises a transmission assembly and a driving motor; the driving motor and the transmission assembly are both installed on the supporting plate. The driving motor is used for driving the transmission assembly so as to drive the rotating frame to reciprocate around the pivot. According to the technical scheme provided by the invention, the structure of the printing mechanism can become compact, the size of the printing mechanism is reduced, and meanwhile, the part complexity of the printing mechanism is avoided; and the rotating frame can be accurately controlled to swing around the pivot in a reciprocating mode, printing flexibility is improved, the printing position can be adjusted according to printing requirements, and printing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of printing technology, and in particular to a printing mechanism. Background Art

[0002] In the traditional printing technology system, the linear printing method is commonly used, which forms images or texts by printing in a straight line on paper. This printing mode relies heavily on complex mechanical parts, especially a driving rod that is longer than the printing paper is required to drive the print head to move horizontally or vertically. However, it inevitably increases the overall size of the printer, making it quite bulky. At the same time, the precise and complex internal mechanical structure further increases the manufacturing cost and increases the difficulty of daily maintenance and upkeep. Summary of the invention

[0003] The present application provides a printing mechanism to at least solve the problems in the related art such as how to drive the printing module to perform rotary inkjet printing. The technical solution of the present application is as follows:

[0004] According to a first aspect of an embodiment of the present application, there is provided a printing mechanism, including a printing module, a supporting plate and a printing driving module;

[0005] The printing module includes a rotating frame, and a fixing portion is provided on the rotating frame for fixing the material box;

[0006] A pivot is provided on the support plate; one end of the rotating frame is rotatably connected to the pivot;

[0007] The printing drive module includes a transmission assembly and a drive motor; the drive motor and the transmission assembly are both mounted on the support plate;

[0008] The driving motor is used to drive the transmission assembly, thereby driving the rotating frame to swing back and forth around the pivot.

[0009] In a possible implementation, a printing rotating gear is disposed at one end of the rotating frame, the transmission assembly is meshed with the printing rotating gear, and the driving motor drives the printing rotating gear to rotate by driving the transmission assembly, thereby driving the rotating frame to swing back and forth around the pivot.

[0010] In a possible implementation, the transmission assembly includes an input gear and an output gear, the input gear is connected to the driving motor, and the output gear is respectively meshed with the input gear and the printing rotating gear.

[0011] In a possible implementation, the transmission assembly further includes a transmission belt, one end of which is rotatably connected to the driving motor, and the other end of which is rotatably connected to the printing rotating gear.

[0012] In a possible implementation, the printing mechanism further includes a carriage origin sensor; the carriage origin sensor is disposed on the support plate, and the carriage origin sensor is used to generate a trigger signal when the printing module swings to the origin position.

[0013] In a possible implementation, the printing mechanism also includes a nozzle scraper and ink-absorbing cotton; a scraper groove is provided on the support plate for fixing the nozzle scraper; an ink-absorbing groove is provided on the ink-absorbing cotton, and the ink-absorbing groove is connected to the nozzle scraper through the ink-absorbing groove; the nozzle scraper is used to scrape ink from the nozzle at the bottom of the material box; and the ink-absorbing cotton is used to absorb ink under the nozzle scraper.

[0014] In a possible implementation, the printing mechanism further includes a main control board, which is used to obtain printing information and generate printing instructions according to the printing information; the driving motor is used to receive the printing instructions and drive the transmission component according to the printing instructions.

[0015] In a possible implementation, the printing mechanism also includes a paper conveying module and a paper transmission motor; a paper conveying slot is provided on the support plate for fixing the paper conveying module; the paper transmission module includes a paper transmission assembly and a paper transmission rod; the paper transmission assembly and the paper transmission rod are rotatably connected; the paper transmission motor is connected to the paper transmission assembly, and the paper transmission motor is used to drive the paper transmission assembly to rotate.

[0016] In a possible implementation, the printing mechanism also includes a paper end sensor and a paper storage module; the paper storage module is used to store printed paper; the paper end sensor is arranged at the paper outlet of the paper conveying module, and the paper end sensor is used to monitor the conveying position of the paper.

[0017] In a possible implementation, the printing mechanism also includes a battery module and a port substrate; the battery module is used to supply power to the printing drive module; the battery module is connected to the port substrate, and a charging interface is provided on the port substrate for charging the battery module.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0019] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0020] The printing module, the support plate and the printing drive module are combined and connected, so that the structure of the entire printing mechanism becomes compact, the volume of the printing mechanism is reduced, and at the same time, the complexity of the components of the printing mechanism is avoided;

[0021] The driving motor and the transmission assembly cooperate to drive the rotating frame to swing back and forth around the pivot, so that the printing mechanism can accurately control the rotating frame to swing back and forth around the pivot, which not only improves the flexibility of printing, but also can adjust the printing position according to the printing requirements, thereby improving the printing efficiency;

[0022] A pivot is arranged on the support plate, and one end of the rotating frame is rotatably connected to the pivot, which can improve the rotation stability of the rotating frame and further improve the printing accuracy.

[0023] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions and advantages of the embodiments of this specification or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A structure of a printing mechanism according to an exemplary embodiment is shown Figure 1 .

[0026] Figure 2 A structure of a printing mechanism according to an exemplary embodiment is shown Figure 2 .

[0027] Figure 3 is a schematic diagram showing a rotation angle of a printing module according to an exemplary embodiment.

[0028] Figure 4 is a structural diagram of a paper conveying module according to an exemplary embodiment.

[0029] In the figure,

[0030] 1-material box, 2-rotating frame, 3-fixing part, 4-input gear, 5-driving shaft, 6-motor unit, 7-output gear, 8-printing rotating gear, 9-support plate, 10-carriage origin sensor, 11-ink absorbing cotton, 12-printer scraper, 13-paper transmission motor, 14-main control board, 15-paper transmission rod, 16-paper transmission assembly, 17-paper tip sensor. DETAILED DESCRIPTION

[0031] In order to enable ordinary persons in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application specification will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application specification. Obviously, the described embodiments are only part of the embodiments of the specification, not all of the embodiments. Based on the embodiments in the present specification, all other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0033] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0034] The word "exemplary" used exclusively herein means "serving as an example, embodiment or illustrative". Any embodiment described herein as "exemplary" is not necessarily to be construed as being superior or better than other embodiments. The term "and / or" herein is merely a description of an association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of types. For example, including at least one of A, B, and C may represent any one or more elements selected from the set consisting of A, B, and C.

[0035] Unless otherwise specified, the directions in this document should be understood as follows: the direction closer to the user is the front, and the direction away from the user is the rear.

[0036] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0037] A printer is a device that converts digital information in a computer or other electronic device into a physical document. Its basic working principle is to control the print head or laser through signal processing, and use ink or toner to form characters or images on the transmitted paper. According to the imaging principle and printing method, printers are mainly divided into the following categories: dot matrix printers, inkjet printers, laser printers, 3D printers, etc. This application does not limit the type of printer.

[0038] Preferably, the printing mechanism in the present application can be applied to an inkjet printer. Among them, an inkjet printer is a printing device that forms text or images by spraying ink onto a printing medium, such as paper. The working principle of an inkjet printer is mainly based on single-chip microcomputer control. When the printing paper passes through the inkjet head, the main control circuit, under the drive of the printing signal, uses the inkjet technology corresponding to inkjet printing, for example, thermal bubble inkjet technology, to spray the ink onto the printing paper at an extremely fast speed, thereby realizing inkjet printing.

[0039] Figure 1 FIG. 1 is a structural block diagram of a printing mechanism according to an exemplary embodiment. Figure 1 As shown, it may include a printing module, a support plate 9 and a printing drive module.

[0040] The printing module includes a rotating frame 2 , and a fixing portion 3 is provided at one end of the rotating frame 2 . The fixing portion 3 is used to fix the material box 1 to improve the inkjet stability of the material box 1 .

[0041] In a possible implementation, the fixing part 3 can be provided with different fixing parts according to different fixing methods. Exemplarily, the fixing part 3 can be provided as a magnetic fixing part, one or more magnetic materials are provided on the rotating frame 2 and the material box 1, and the material box 1 is adsorbed on the rotating frame 2 by the magnetic attraction of the magnetic material, and the magnetic fixing block provided on the rotating frame corresponds to the position of the magnetic fixing block provided on the material box 1. The present application does not limit the number and type of magnetic materials. The fixing part 3 can also be provided as a bolt-fastened fixing part, and a threaded hole can be provided on the rotating frame 2, and the material box 1 is fixed to the rotating frame 2 by bolts and nuts. The fixing part 3 can also be provided as a slide rail fixing part, and a slide rail is provided on the rotating frame 2. After the material box 1 slides to the specified position through the slide rail, it is fixed by the locking device of the fixing part 3. The fixing part 3 can also be a snap-on fixing part, that is, a slot, and the material box 1 can be snapped on the rotating frame 2 by pressing or the like. The present application does not limit the specific form of the fixing part 3.

[0042] Preferably, the present application can use a magnetic fixing part to fix the material box 1. Such a setting can increase the internal space of the printing mechanism, making the structure simpler and easier to operate.

[0043] A pivot is provided on the support plate 9, and a rotation hole is provided on the rotating frame 2. One end of the rotating frame 2 is rotatably connected to the pivot, that is, one end of the pivot is fixedly provided on the support plate 9, and the other end is inserted into the rotation hole of the rotating frame 2, so that the two can be rotatably connected.

[0044] In a possible implementation, a printing rotating gear 8 is provided at the bottom of one end of the rotating frame 2, and the printing driving module includes a transmission assembly and a driving motor. The driving motor includes a driving shaft 5 and a motor unit 6, and the transmission assembly and the driving shaft 5 are both installed above the support plate 9, and the motor unit 6 is installed below the support plate 9, and the motor unit 6 is rotatably connected to the driving shaft 5. One end of the transmission assembly is meshed with the driving shaft 5 on the driving motor, and the other end is meshed with the printing rotating gear 8. The motor unit 6 is arranged below the support plate 9. This installation method can save space on the upper part of the support plate 9, and can also prevent the heat generated by the motor unit 6 from affecting the rotation of the components above the support plate 9 when the printing mechanism is working.

[0045] In a possible implementation, the transmission assembly may include an input gear 4 and an output gear 7. An input pivot and an output pivot may be provided on the support plate 9, wherein the input pivot may be rotatably connected to the input gear 4, and the output pivot may be rotatably connected to the output gear 7. After the input gear 4 is rotatably connected to the input pivot, and the output gear 7 is rotatably connected to the output pivot, one end of the input gear 4 is meshed with the driving shaft 5 of the driving motor, and the other end of the input gear 4 is meshed with one end of the output gear 7; the other end of the output gear 7 is meshed with the printing rotation gear 8.

[0046] In another possible implementation, the transmission assembly may further include a transmission belt, and the present application does not limit the specific structure of the transmission assembly. The transmission belt may be directly sleeved on the print rotating gear 8 and the drive shaft 5, and then, one end of the transmission belt may be rotatably connected to the print rotating gear 8, and the other end of the transmission belt may be rotatably connected to the drive shaft 5. Further, when the motor unit 6 drives the drive shaft 5 to rotate, the print rotating gear 8 may be driven to rotate, that is, the transmission belt is rotatably connected to the print rotating gear 8 and the drive shaft 5, and then the rotating frame 2 is driven to swing back and forth around the pivot.

[0047] The working principle of the motor unit 6 is to convert electrical energy into mechanical energy by receiving a signal from the main control board 14, thereby driving the transmission assembly, and further driving the rotating frame 2 to swing back and forth around the pivot.

[0048] There are several types of drive motors in the printing mechanism. Linear motors are motors that use the force generated by electromagnetic fields to achieve linear motion. When current passes through the motor coil, a magnetic field is generated. This magnetic field interacts with the permanent magnets in the motor to generate linear motion, causing the print head to slide on the print medium and directly output text or images.

[0049] The stepper motor controls the rotation angle of the motor by receiving a pulse signal. Each time a pulse signal is received, the stepper motor will select a fixed angle. The stepper motor usually has multiple poles and coils, and the rotation direction of the motor is controlled by changing the direction of the current in the coil.

[0050] The servo motor achieves precise position and speed control through a closed-loop control system. The servo motor is usually equipped with a feedback device such as an encoder or a Hall element to monitor the position and speed of the motor and feed this information back to the main control board 14. The main control board 14 adjusts the current and voltage of the motor according to the feedback information to maintain the stable operation of the motor. The present application does not limit the type of motor unit 6, which can be determined according to actual conditions.

[0051] Preferably, since the stepper motor receives a digital control signal, i.e., an electrical pulse signal, and converts it into an angular displacement or linear displacement corresponding thereto, the stepper motor itself is an actuator that can complete digital mode conversion. The stepper motor can also realize open-loop position control, i.e., the rotation position and speed can be accurately controlled without feedback. The stepper motor can also accurately control the rotation angle, speed and rotation direction of the motor by controlling the number and frequency of pulses and the phase sequence of the motor windings. The position error is very small (less than 1 / 10 degree) and will not accumulate. The brushless design of the stepper motor ensures a long service life of the motor. Therefore, the stepper motor has the advantages of high precision, smooth movement, controllable speed and long service life. Furthermore, the present application gives priority to using a stepper motor as a drive motor to drive the transmission assembly to drive the rotating frame 2 to swing back and forth around the pivot.

[0052] In a possible implementation, the printing mechanism further includes a main control board 14, which can be arranged above the printing module, the printing drive module and the paper conveying module. The main control board 14 is a control module of the printing mechanism, and is responsible for acquiring and processing printing information provided by an external device.

[0053] The external device may be, but is not limited to, a smart phone, a desktop computer, a tablet computer, a laptop computer, a smart speaker, a digital assistant, an augmented reality (AR) / virtual reality (VR) device, a smart wearable device, and other electronic devices. Optionally, the operating system running on the electronic device may include, but is not limited to, Android, IOS, Linux, Windows, and the like.

[0054] The main control board 14 is also provided with a communication module, which may include a wired communication module for data transmission with external devices through physical data lines. Wired communication may include a universal serial bus USB (Universal SerialBus), a high-definition multimedia interface HDMI (High Definition Multimedia Interface), etc., which are used to connect the printing mechanism and the external device, so that the external device can transmit the printing information to the main control board 14 through a wired transmission method such as USB, etc., and the present application does not limit the wired communication method of the printing mechanism. The communication module may also include a wireless communication module, such as wireless local area network technology Wi-Fi (IEEE 802.11), Bluetooth Bluetooth, Zigbee (IEEE 802.15.4), NFC (NearField Communication), etc., and the present application does not limit this.

[0055] The printing information may include data of the contents of the printed document, picture, etc., and the printing parameters set by the user, such as the number of copies to be printed, the printing quality, etc., which are not limited in this application. After the main control board 14 obtains the printing information from the external device, the printing information is usually not directly applicable to the form of printing, and then the main control board 14 needs to parse and process the information and convert it into instructions that can be understood and executed by the various components inside the printer, that is, after the main control board 14 parses the printing information, it will generate the corresponding printing instructions. Furthermore, the main control board 14 will send the printing instructions to the various modules in the printing mechanism, such as the printing module, the printing driver module, and the paper conveying module.

[0056] After the print driver module receives the print command sent by the main control board 14, the motor unit 6 will drive the input gear 4 to rotate. While the input gear 4 rotates, the output gear 7 also rotates synchronously, thereby driving the print rotating gear 8 to swing back and forth, that is, driving the rotating frame 2 to swing back and forth around the pivot.

[0057] In a possible implementation, the printing mechanism further includes at least one carriage origin sensor 10, wherein the carriage origin sensor 10 refers to a sensor capable of detecting and determining an origin position or a reference position of the movement of the carriage.

[0058] In the printing mechanism of the present application, the carriage origin sensor 10 can be arranged on the support plate 9, that is, at the positions on both sides of the pivot. Specifically, it can be arranged at the leftmost origin position where the printing module can rotate, so that when the main control board 14 drives the printing module to rotate around the pivot for printing, when the printing module swings to the leftmost origin position, it can accurately swing in the opposite direction around the pivot, thereby ensuring the printing quality and the normal operation of the printing mechanism.

[0059] The types of carriage origin sensors 10 include: photoelectric sensors, which determine the position of the printing module by blocking or reflecting the light beam. The photoelectric sensor is composed of a transmitter and a receiver. The transmitter emits a light beam, and when the printer's material box 1 rotates to the origin position, that is, the starting position, the light beam is blocked or reflected by the printing module, and the receiver detects this change and generates a trigger signal.

[0060] The magnetic sensor determines the rotational position of the printing module by detecting a magnetic mark. The working principle of the magnetic sensor is to install a magnetic mark on the printing module or the path of the rotational swing of the printing module. When the magnetic sensor detects this mark, it will immediately generate a trigger signal. The mechanical switch detects the position of the printing module through physical contact, that is, a mechanical switch is installed at the origin position of the printing module. When the printing module rotates to the origin position, the printing module triggers the mechanical switch, and at this time, the mechanical switch generates a trigger signal. The present application does not limit the type of the carriage origin sensor 10, which can be determined according to actual conditions.

[0061] The carriage origin sensor 10 monitors the rotation position of the printing module in real time. When the printing module is detected to swing to the origin position, a trigger signal is automatically generated and transmitted to the main control board 14. After receiving the trigger signal sent by the carriage origin sensor 10, the main control board 14 will immediately control the drive motor to reverse, that is, control the printing module to swing in the opposite direction around the pivot. This setting can improve the efficient and stable operation state of the printing mechanism.

[0062] In a possible implementation, a corresponding carriage origin sensor 10 may also be provided at the rightmost origin position of the rotation of the printing module in the printing mechanism. The two carriage origin sensors 10 may be operated simultaneously, and are respectively used to monitor the origin positions corresponding to the two sides of the rotation of the printing module, that is, the starting position and the end position of the movement of the material box 1. In this way, when the printing module rotates and swings to the starting position, the carriage origin sensor 10 at the starting position may generate a trigger instruction corresponding to the starting position when the printing module rotates to the starting position. After the main control board 14 receives the trigger instruction generated at the starting position, it will immediately control the drive motor, thereby causing the printing module to reverse around the pivot. The carriage origin sensor 10 at the end position may generate a trigger instruction corresponding to the end position when the printing module rotates to the end position, and send the trigger instruction of the end position to the main control board 14. After the main control board 14 receives the trigger instruction transmitted at the end position, it will immediately control the drive motor to rotate forward, thereby causing the printing module to rotate forward around the pivot.

[0063] Figure 3 FIG. 1 is a schematic diagram showing a rotation angle of a printing module according to an exemplary embodiment. Figure 3 As shown, the printing module can swing left and right around the pivot to achieve rotary inkjet. For example, the rotation angle of the printing module around the pivot can be set to 135°. The present application does not limit the rotation angle of the printing module, which can be determined according to actual conditions.

[0064] In another possible implementation, two carriage origin sensors 10 are provided, one is provided at the starting position of the rotation of the printing module, and the other is provided at the end position of the rotation of the printing module, that is, the origin positions on both sides of the printing module. The carriage origin sensor 10 at the starting position is used to monitor the starting position of the rotation of the printing module, and the carriage origin sensor 10 at the end position can be used as a spare carriage origin sensor 10. When the carriage origin sensor 10 at the starting position fails, the main control board 14 will immediately send a print command to the carriage origin sensor 10 at the end position, and the carriage origin sensor 10 at the end position will immediately monitor the printing module, thereby ensuring that the printing module can stably print in the printing area.

[0065] After receiving the trigger signal sent by the carriage origin sensor 10 at the starting position, the main control board 14 immediately determines the end position preset according to the starting position according to the trigger signal, and then calculates the distance and direction that the printing module needs to swing. Further, according to the distance and direction that the printing module needs to swing, the drive motor is controlled to rotate forward and reverse along the starting position and the end position. Among them, forward rotation can be the printing module swinging from the starting position to the end position around the pivot, and reverse rotation can be the printing module swinging from the end position to the starting position around the pivot. The present application does not limit the starting position and the end position.

[0066] Figure 4 FIG. 1 is a structural diagram of a paper conveying module according to an exemplary embodiment. Figure 4 As shown, the printing mechanism also includes a paper conveying module and a paper transmission motor 13. A paper conveying slot is provided on the support plate 9, and the paper conveying slot is provided in front of the printing module, and the paper conveying slot is used to fix the paper conveying module. The paper conveying module includes a paper transmission assembly 16 and a paper transmission rod 15. One end of the paper transmission assembly 16 is rotatably connected to the paper transmission rod 15 through a bearing or other rotating connecting member on the paper connecting rod 15, and the other end of the paper transmission assembly 16 is rotatably connected to the paper transmission motor 13 through a coupling or other rotating connecting member on the paper transmission motor 13.

[0067] The paper transmission assembly 16 can be a combination of multiple paper transmission gears, that is, multiple paper transmission gears transmit power through meshing. The paper transmission motor 13 drives one of the multiple paper transmission gears to rotate, and through the meshing between the gears, the paper transmission rod 15 is driven to rotate.

[0068] The paper transmission assembly 16 can also be a combination of a paper transmission gear and a paper transmission belt, the paper transmission motor 13 drives the driving gear in the paper transmission gear to rotate, and the paper transmission gear drives the driven gear in the paper transmission gear to rotate through the paper transmission belt, thereby driving the paper transmission rod 15 to rotate. The present application does not limit the type of the paper transmission assembly 16, which can be determined according to actual conditions.

[0069] The printing mechanism also includes a paper tip sensor 17 and a paper storage module. The paper storage module is arranged below the support plate 9 and can be designed as a paper tray or paper bin for storing and providing printed paper. An openable and closable cover is arranged below the paper storage module. The cover can be made of a solid metal material or plastic to ensure the durability and stability of the cover. The user can manually open and close the cover to place paper into the paper storage module. The present application does not limit the capacity of the paper storage module, and the specific amount of stored paper can be determined according to actual conditions.

[0070] In a possible implementation, a paper feed may be provided on one side of the outside of the printing mechanism, and a switch module corresponding to the paper feed is also provided on the outside of the printing mechanism. When there is paper inside the printing mechanism, the paper feed is in a closed state, which can effectively prevent dust from entering the inside of the printing mechanism and keep the printed paper clean. When there is no paper inside the printing mechanism, the user can open the paper feed through the switch module. Then, the paper is pushed from the paper feed to the paper storage module. Accordingly, the paper is placed in the paper storage module, that is, the accurate paper output position, through the paper limiting unit. After the user has placed the paper, the paper feed is further closed through the switch module. The present application does not limit the structure for placing paper.

[0071] The paper tip sensor 17 is arranged at the paper outlet of the paper conveying module, that is, the front position of the paper transmission rod, and is used to detect the tip position of the paper to ensure that the paper can enter the printing area correctly and aligned for printing. After the external device sends the printing information to the main control board 14, the printing task starts at this time. After receiving the printing information, the main control board 14 will instruct the paper conveying module to perform the conveying process according to the preset printing settings. Under the action of the paper conveying module, the paper starts to move from the paper storage module to the printing area. Correspondingly, the main control board 14 also instructs the paper tip sensor 17 arranged at the paper outlet of the paper conveying module to start monitoring the paper outlet. When the paper is detected to appear at the paper outlet, the paper tip sensor 17 immediately sends the conveying position of the paper to the main control board 14. After receiving the conveying position of the paper, the main control board 14 immediately sends a printing instruction to the printing module and the printing driver module so that the printing mechanism can perform rotation printing on the paper to be printed.

[0072] The paper tip sensor 17 can be a penetrating paper tip sensor. The penetrating paper tip sensor irradiates light onto the surface of the paper through components such as photodiodes and photosensitive diodes, and uses the penetration and reflection of light to monitor the position and size of the tip of the paper. The working principle of the penetrating paper tip sensor is: light is irradiated from a light-transmitting component to the surface of the paper, and then passes through the paper and is directed to another photoelectric element. The position of the tip of the paper is determined by detecting the amount of light that is transmitted. The paper tip sensor 17 can also be a reflective paper tip sensor. The reflective paper sensor irradiates light onto the surface of the paper and uses the reflection of light to detect the position of the tip of the paper. The working principle of the reflective paper sensor is that after the light is irradiated onto the surface of the paper, it is reflected back, and the intensity and time of the reflected light are detected by the photosensitive element to determine the position of the tip of the paper. This application does not limit the type of paper tip sensor 17.

[0073] In a possible implementation, the printing mechanism also includes a nozzle scraper 12 and an ink-absorbing cotton 11. Among them, a scraper groove can be provided on the support plate 9 for fixing the nozzle scraper 12, so that the stability of the nozzle scraper 12 can be ensured, and the difficulty of installation and maintenance can be reduced. The present application does not limit the shape and size of the nozzle scraper 12. Specifically, the nozzle scraper 12 is arranged on the outside of the carriage origin sensor 10. An ink-absorbing groove is provided on the ink-absorbing cotton 11, and the ink-absorbing cotton 11 is connected to the nozzle scraper 12 through the ink-absorbing groove. A plurality of nozzles are provided at the bottom of the material box 1, and a plurality of small nozzles are provided on each nozzle. When the printing mechanism has not been used for a long time or has not been turned on, the nozzles on the material box 1 may have dried ink and are easy to be blocked, thereby affecting the printing quality. Furthermore, when the printing mechanism starts to be used, the main control board 14 will first control the drive motor to drive the material box 1 to swing to the position of the nozzle scraper 12. Furthermore, the nozzle scraper 12 can scrape the nozzle at the bottom of the material box 1 to remove the ink clogged on the nozzle, so that in the subsequent printing process, the printing efficiency and printing accuracy can be improved. After the nozzle scraper 12 finishes scraping the ink, the ink will flow directly along the nozzle scraper 12 to the ink-absorbing cotton 11. This design can ensure the smooth discharge of the ink and avoid the accumulation and contamination of the ink inside the printing mechanism. Through the absorption effect of the ink-absorbing cotton 11, the entire printing mechanism can be kept clean and dry, thereby extending the service life of the mechanism and improving the printing quality.

[0074] The material cartridge 1 is a component in the printing mechanism for storing and supplying ink or toner required for printing. The material cartridge 1 may refer to an ink cartridge, i.e., a component in an inkjet printer for storing printing ink. The material cartridge 1 may also refer to a toner cartridge, i.e., a toner cartridge for storing solid carbon powder. The present application does not limit the specific type of the material cartridge 1. Preferably, the present application uses an ink cartridge as the material of the material cartridge 1 of the printing mechanism. Ink cartridges can be divided into black ink cartridges or color ink cartridges according to color, and black ink cartridges are mainly used to print black text and images. Color ink cartridges can contain inks of different colors, such as cyan, magenta, yellow, etc., which are used to print color graphics and photos to meet more diverse printing needs. The present application does not limit the type of ink cartridge, which may be determined according to actual conditions. The arrangement of the nozzles on the ink cartridge and the number of nozzles are not limited in the present application.

[0075] After receiving the printing information transmitted by the external device, the main control board 14 can convert the printing information into a dot matrix form, that is, determine which positions need to be sprayed with ink and which positions do not. The main control board 14 sends a printing instruction to the drive motor, and the drive motor performs forward and reverse reciprocating swings, so that the printing module can swing around the pivot. At the same time, the main control board 14 can also send a printing instruction to the paper transmission motor 13, and the paper transmission motor 13 is used to adjust the position of the paper, so that each time the printing module rotates and swings from the starting position to the end position, the paper moves forward at a uniform speed.

[0076] The cartridge 1 of the printing mechanism can use thermal bubble inkjet technology. Inside the nozzle of the cartridge 1, that is, each nozzle is connected to a micro heating resistor. When current passes through this resistor, it will quickly heat up to a very high temperature, usually 300°C. At this time, the heating resistor causes the ink in contact to evaporate instantly, forming a bubble. This bubble expands rapidly, pushing the surrounding ink toward the nozzle. As the bubble expands, it pushes a small drop of ink, usually a few picoliters in volume, out of the nozzle and sprays it onto the printed paper. The bubble then cools and bursts, causing negative pressure in the nozzle, attracting new ink to fill the nozzle in preparation for the next spray.

[0077] The material box 1 of the printing mechanism can also adopt piezoelectric inkjet technology. A nozzle drive unit is provided on the material box 1, and the nozzle drive unit is connected to the main control board 14. The main control board 14 sends electrical signals to the nozzle drive unit according to the dot matrix data. These electrical signals can accurately control the time for each nozzle on the nozzle in the material box 1 to spray ink droplets. The nozzle drive unit is provided with one or more piezoelectric crystals, which are connected to the nozzles and can be set to correspond to one piezoelectric crystal for each nozzle. After the main control board 14 sends an electrical signal to the piezoelectric crystal, the piezoelectric crystal will be deformed, and then the ink in the ink chamber will be squeezed out of the nozzle, and at an extremely high speed, for example, thousands of drops of ink per second are hit on the straight surface to form text or patterns. This application does not limit the printing technology sampled by the material box 1, and the specific technology can be determined according to the actual situation.

[0078] In one possible implementation, the printing mechanism also includes a battery module and a port substrate, wherein the battery module is used to provide a stable power supply to components such as the main control board 14 and the printing driver module. The battery module is also connected to the port substrate, on which a charging interface is provided, which usually adopts a characterized charging protocol, such as USB, Type-C, etc., to ensure compatibility with various charging devices. When the printing mechanism is low on power, the user can plug the charging cable into the charging interface to connect the battery module to the charging device for charging. The present application may also install a wireless charging receiver inside the printing mechanism, which is connected to the charging module. When the printing mechanism is low on power, the user can place a dedicated wireless charging adapter at a designated position on the printing mechanism to start the wireless charging process. The present application does not limit the method for charging the battery module.

[0079] In the present application, the printing mechanism is set to a rotary swing inkjet printer, so that the printing module can achieve large-scale printing in a smaller space, and thus the overall volume of the printing device can be significantly reduced, making the structure of the printing mechanism more compact, which is conducive to integrating more functional modules in a limited space. Accordingly, integrating the printing mechanism of the present application into a portable inkjet printing device can enhance the user experience and facilitate users to directly use the portable inkjet printing device to print pictures or texts outdoors or in other scenarios.

[0080] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

[0081] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0082] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A printing mechanism, characterized in that: It includes a printing module, a supporting plate and a printing driving module; The printing module includes a rotating frame, and a fixing portion is provided on the rotating frame for fixing the material box; The support plate is provided with a pivot; one end of the rotating frame is rotatably connected to the pivot; The printing drive module includes a transmission assembly and a drive motor; the drive motor and the transmission assembly are both mounted on the support plate; The driving motor is used to drive the transmission assembly, thereby driving the rotating frame to swing back and forth around the pivot.

2. The printing mechanism according to claim 1, characterized in that: A printing rotating gear is arranged at one end of the rotating frame, and the transmission assembly is meshed with the printing rotating gear. The driving motor drives the transmission assembly to drive the printing rotating gear to rotate, thereby driving the rotating frame to swing back and forth around the pivot.

3. The printing mechanism according to claim 2, characterized in that: The transmission assembly includes an input gear and an output gear, wherein the input gear is connected to the driving motor, and the output gear is respectively meshed with the input gear and the printing rotating gear.

4. The printing mechanism according to claim 2 or 3, characterized in that: The transmission assembly further comprises a transmission belt, one end of which is rotatably connected to the driving motor, and the other end of which is rotatably connected to the printing rotating gear.

5. The printing mechanism according to claim 1, characterized in that: The printing mechanism also includes a carriage origin sensor; The carriage origin sensor is arranged on the support plate, and the carriage origin sensor is used for generating a trigger signal when the printing module swings to the origin position.

6. The printing mechanism according to claim 1, characterized in that: The printing mechanism also includes a nozzle scraper and ink-absorbing cotton; The support plate is provided with a scraper groove for fixing the nozzle scraper; the ink absorbing cotton is provided with an ink absorbing groove, and the ink absorbing cotton is connected to the nozzle scraper through the ink absorbing groove; The nozzle scraper is used to scrape ink from the nozzle at the bottom of the material box; the ink-absorbing cotton is used to absorb the ink scraped by the nozzle scraper.

7. The printing mechanism according to claim 1, characterized in that: The printing mechanism further comprises a main control board, which is used to obtain printing information and generate printing instructions according to the printing information; the driving motor is used to receive the printing instructions and drive the transmission component according to the printing instructions.

8. The printing mechanism according to claim 1, characterized in that: The printing mechanism also includes a paper conveying module and a paper transmission motor; The support plate is provided with the paper conveying slot for fixing the paper conveying module; the paper transmission module includes a paper transmission assembly and a paper transmission rod; the paper transmission assembly and the paper transmission rod are rotatably connected; the paper transmission motor is connected to the paper transmission assembly, and the paper transmission motor is used to drive the paper transmission assembly to rotate.

9. The printing mechanism according to claim 8, characterized in that: The printing mechanism also includes a paper tip sensor and a paper storage module; The paper storage module is used to store printed paper; The paper tip sensor is arranged at the paper outlet of the paper conveying module, and the paper tip sensor is used to monitor the conveying position of the paper.

10. The printing mechanism according to claim 1, characterized in that: The printing mechanism also includes a battery module and a port substrate; The battery module is used to supply power to the printing drive module; the battery module is connected to the port substrate, and a charging interface is provided on the port substrate for charging the battery module.

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