Paper feeding mechanism and printing apparatus

Abstract

The application discloses a paper feeding mechanism and printing equipment. The paper feeding mechanism comprises a main body, a paper feeding assembly and a limiting assembly. The paper feeding assembly comprises a paper feeding disc and a paper lifting disc. The paper feeding disc is rotationally connected with the main body to form a paper storage cavity. The paper lifting disc can rotate away from the paper feeding disc and drive a guide rod to move away from the paper feeding disc. The limiting assembly comprises a limiting piece and a driving assembly. The limiting piece is used for abutting against the guide rod to block the rotation of the paper lifting disc away from the paper feeding disc. When the paper feeding disc rotates away from the main body, the guide rod is separated from the limiting piece and moves to one side of the limiting piece away from the paper feeding disc. The driving assembly can drive the limiting piece to rotate to one side of the guide rod away from the paper feeding disc and make the limiting piece abut against the guide rod. The driving assembly can also drive the limiting piece to drive the guide rod to move towards the paper feeding disc to drive the paper lifting disc to rotate towards the paper feeding disc. The application realizes the automatic reset of the paper lifting disc and improves the reliability and stability of the paper feeding mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the paper conveying technical field, and particularly relates to a paper feeding mechanism and printing equipment. BACKGROUND

[0002] In the prior art, the paper lifting plate of the paper feeding mechanism can adjust the inclination angle thereof according to the paper condition. In the prior art, the height of one end of the paper lifting plate is limited by the abutment of the limiting assembly and the guide rod of the paper lifting plate, so as to adjust the inclination angle of the paper lifting plate. However, the existing paper feeding mechanism is prone to dislocation of the guide rod when the user lifts the paper feeding plate to take paper, so that the control of the limiting assembly on the paper lifting plate is released, and the paper lifting plate is difficult to reset. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a paper feeding mechanism and printing equipment capable of resetting the dislocated guide rod.

[0004] According to a first aspect of the present application, a paper feeding mechanism is provided, comprising a main body, a paper feeding assembly and a limiting assembly, the paper feeding assembly is arranged on one side of the main body, the paper feeding assembly comprises a paper feeding plate and a paper lifting plate, the paper feeding plate and the main body surround to form a paper storage cavity, and the paper feeding plate is rotationally connected with the main body, one end of the paper lifting plate is rotationally connected with the paper feeding plate, and the other end is provided with a guide rod which is slidingly connected with the paper feeding plate, the paper lifting plate can rotate away from the paper feeding plate and drive the guide rod to move away from the paper feeding plate; the limiting assembly is connected with the main body, the limiting assembly comprises a limiting piece and a driving assembly, the limiting piece is used for abutting against the guide rod to block the rotation of the paper lifting plate away from the paper feeding plate; wherein, when the paper feeding plate rotates away from the main body, the guide rod is disengaged from the limiting piece and moves to the side of the limiting piece away from the paper feeding plate, the driving assembly can drive the limiting piece to rotate to the side of the guide rod away from the paper feeding plate and make the limiting piece abut against the guide rod, and the driving assembly can also drive the limiting piece to drive the guide rod to move towards the paper feeding plate, so as to drive the paper lifting plate to rotate towards the paper feeding plate.

[0005] According to the paper feeding mechanism of the present application, at least the following beneficial effects are achieved:

[0006] The paper feeding assembly is arranged on one side of the main body, so that the paper storage cavity is arranged between the paper feeding tray and the main body, and the paper feeding tray is rotationally connected with the main body. Therefore, the user can lift the paper feeding tray to take paper, and the paper taking is more convenient and fast. The limiting piece is arranged to abut against the guide rod to block the lifting paper tray from rotating back to the paper feeding tray, so as to control the inclination angle of the lifting paper tray and improve the controllability of the lifting paper tray. In addition, when the user lifts the paper feeding tray to take paper and causes the guide rod to be dislocated, the driving assembly can drive the limiting piece to rotate to the side where the guide rod is away from the paper feeding tray and abut against the guide rod, so that the limiting piece can be positioned again at a position capable of limiting the guide rod, so that the guide rod is controlled by the limiting piece again. After the limiting piece abuts against the guide rod again, the driving assembly can drive the limiting piece to drive the guide rod to move towards the paper feeding tray, so as to drive the lifting paper tray to rotate towards the paper feeding tray, thereby achieving automatic resetting of the lifting paper tray, reducing the risk of failure of the paper feeding mechanism, reducing the need for manual intervention, improving the reliability and stability of the paper feeding mechanism, and providing a better user experience.

[0007] According to some embodiments of the present application, the limiting piece comprises a swing part and a rotating part, the swing part and the rotating part are rotationally connected, when the limiting piece is located between the guide rod and the paper feeding tray, the swing part can swing towards the guide rod, one end of the guide rod away from the paper feeding tray abuts against the rotating part and drives the rotating part to rotate around the swing part, and the swing part can drive the rotating part to move to the side where the guide rod is away from the paper feeding tray and abut against one end of the guide rod away from the paper feeding tray.

[0008] According to some embodiments of the present application, the limiting assembly comprises a resetting piece, one end of the resetting piece is connected to the swing part, and the other end is connected to the rotating part. After the swing part drives the rotating part to move from the side of the guide rod towards the paper feeding tray to the side of the guide rod away from the paper feeding tray, the resetting piece can drive the rotating part to rotate away from the guide rod to reset.

[0009] According to some embodiments of the present application, the paper feeding mechanism comprises a sensor, the sensor is arranged on the main body, and the sensor is configured to trigger the sensor when the paper feeding tray rotates away from the main body. The sensor triggers the driving assembly to drive the limiting piece to rotate.

[0010] According to some embodiments of the present application, the main body comprises a base and a mounting seat, the base is arranged on the lower side of the paper feeding tray and surrounds the paper feeding tray to form the paper storage cavity, the mounting seat is arranged on the upper side of the base and located on one side of the paper feeding assembly, the mounting seat is rotationally connected with the paper feeding tray, the mounting seat is provided with a first guide groove, and the paper feeding tray is provided with a guide piece in sliding connection with the first guide groove.

[0011] According to some embodiments of the present application, the limiting component is mounted on the mounting base, and the driving component comprises a driver, a worm, a turbine and a transmission component, one end of the worm is connected with the driver, the other end of the worm is connected with the turbine, one end of the transmission component is connected with the turbine, and the other end of the transmission component is connected with the limiting component.

[0012] According to some embodiments of the present application, the paper feeding tray is provided with a second guide groove, the second guide groove is arranged in the paper feeding tray away from one end of the paper feeding tray and the rotating connection position of the paper feeding tray and the paper lifting tray, and the guide rod is in sliding connection with the second guide groove.

[0013] According to some embodiments of the present application, the paper feeding mechanism comprises an elastic component, the elastic component is arranged between the paper feeding tray and the paper lifting tray, and the elastic component is used to drive the paper lifting tray to rotate away from the paper feeding tray.

[0014] According to some embodiments of the present application, opposite ends of the paper lifting tray are provided with outwardly extending connecting portions, the paper feeding tray is provided with grooves corresponding to the connecting portions, the connecting portions are arranged in the grooves and can rotate relative to the grooves.

[0015] According to a second aspect of the present application, a printing device is provided, which comprises the paper feeding mechanism disclosed in the first aspect of the present application.

[0016] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0018] Figure 1 FIG. 1 is a schematic view of an embodiment of a paper feeding mechanism of the present application;

[0019] Figure 2 FIG. 2 is an exploded view of the paper feeding mechanism of the present application;

[0020] Figure 3 FIG. 3 is a partial schematic view of the paper feeding mechanism of the present application;

[0021] Figure 4 FIG. 4 is a schematic view of a first state of the limiting component and the guide rod in the paper feeding mechanism of the present application;

[0022] Figure 5 FIG. 5 is a schematic view of a second state of the limiting component and the guide rod in the paper feeding mechanism of the present application;

[0023] Figure 6Fig. 3 is a third state diagram of a limiting member and a guide rod in an embodiment of the paper feeding mechanism of the present application;

[0024] Figure 7 Fig. 4 is a fourth state diagram of a limiting member and a guide rod in an embodiment of the paper feeding mechanism of the present application;

[0025] Figure 8 Fig. 5 is a diagram of a limiting member in an embodiment of the paper feeding mechanism of the present application;

[0026] Figure 9 Fig. 6 is a diagram of a drive assembly in an embodiment of the paper feeding mechanism of the present application; Figure 1 Fig. 7 is an enlarged view of A in Fig. 6;

[0027] Figure 10 Fig. 8 is a diagram of a drive assembly in an embodiment of the paper feeding mechanism of the present application.

[0028] Reference signs:

[0029] Fig. 1 is a diagram of a paper feeding mechanism 1000;

[0030] Fig. 2 is a diagram of a main body 100; a base 110; a paper storage cavity 111; a mounting seat 120; a first guide slot 121; a mounting slot 122;

[0031] Fig. 3 is a diagram of a paper feeding assembly 200; a paper feeding disc 210; a guide member 211; a second guide slot 212; a recess 213;

[0032] Fig. 4 is a diagram of a paper lifting disc 220; a guide rod 221; a connecting portion 222;

[0033] Fig. 5 is a diagram of a limiting assembly 300; a limiting member 310; a swing portion 311; a rotating portion 312;

[0034] Fig. 6 is a diagram of a drive assembly 320; a drive 321; a worm 322; a turbine 323; a transmission assembly 324;

[0035] Fig. 7 is a diagram of a reset member 330; a connecting rod 340;

[0036] Fig. 8 is a diagram of a sensor 400;

[0037] Fig. 9 is a diagram of an elastic member 500. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example embodiments in which the same or similar elements or elements having the same or similar functions are denoted by the same reference signs and in which:

[0039] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, inner, outer and the like, is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0040] In the description of the present application, if the first, second, etc. are described, they are only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0042] In the related art, the paper lifting plate of the paper feeding mechanism can adjust the inclination angle of itself according to the paper condition. Among them, the prior art usually limits the height of one end of the paper lifting plate through the abutting mode of the limiting component and the guide rod of the paper lifting plate, so as to adjust the inclination angle of the paper lifting plate. The paper feeding plate and the paper lifting plate can supply paper for the printing equipment, and the printing equipment can store the paper in the paper storage cavity below the paper feeding plate after completing the printing of the paper. In order to facilitate the user to take the paper, the paper feeding plate can be lifted to provide the user with a wider paper taking field of view and a larger paper taking space. However, the existing paper feeding mechanism is prone to guide rod dislocation when the user lifts the paper feeding plate to take the paper, thereby eliminating the control of the limiting component on the paper lifting plate, causing the paper lifting plate to be difficult to reset.

[0043] Therefore, some embodiments of the present application provide a paper feeding mechanism 1000, which is specifically shown in the accompanying drawings of the specification. Figures 1-10

[0044] Referring to Figure 1 , Figure 2 and Figure 3 ​As shown, in this embodiment of the invention, the paper feeding mechanism 1000 can be applied to a printing device. Specifically, the paper feeding mechanism 1000 can feed paper to the printing device. The paper feeding mechanism 1000 may include: a main body 100, a paper feeding assembly 200, and a limiting assembly 300, wherein the paper feeding assembly 200 may be disposed on one side of the main body 100. Specifically, the paper feeding assembly 200 may include a paper feeding tray 210 and a paper lifting tray 220. The paper feeding tray 210 and the main body 100 may be spaced apart, so that the paper feeding tray 210 and the main body 100 may surround to form a paper storage cavity 111. It is understood that when the printing device receives the paper fed by the paper feeding assembly 200, it can complete printing and deliver the printed paper. The delivered paper may be temporarily stored in the paper storage cavity 111 for the user to retrieve.

[0045] It should be noted that because the paper tray is located on one side of the main body, it may obstruct the user's access to paper in the paper storage chamber, causing inconvenience. Therefore, referring to... Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment of the invention, the paper feed tray 210 is rotatably connected to the main body 100. Specifically, the paper feed tray 210 can rotate towards or away from the main body 100. When a user takes paper, the user can lift the paper feed tray 210, that is, drive the paper feed tray 210 to rotate away from the main body 100 to obtain a wider paper-taking field of view and a larger paper-taking space; when the user finishes taking paper, the user can put down the paper feed tray 210, that is, drive the paper feed tray 210 to rotate towards the main body 100 to reset the paper feed tray 210.

[0046] In order for the paper feeding mechanism 1000 to adjust the paper feeding force according to the paper condition, refer to Figure 1 , Figure 2 and Figure 3As shown in the embodiment of the present application, the paper lifting plate 220 can be rotationally connected with the paper feeding plate 210, so as to adjust the inclination angle of the paper lifting plate 220 according to the paper condition, and further adjust the paper feeding strength. It should be noted that the paper condition can include paper size, paper material, and paper quantity, etc., which are not limited in the embodiment. Specifically, the paper feeding plate 210 can be provided with a recessed position suitable for mounting the paper lifting plate 220, and the paper lifting plate 220 can be arranged in the recessed position. One end of the paper lifting plate 220 is rotationally connected with the paper feeding plate 210, and the other end is provided with a guide rod 221 which is slidingly connected with the paper feeding plate 210. The paper lifting plate 220 can rotate away from the paper feeding plate 210, and drive the guide rod 221 to move away from the paper feeding plate 210. It can be understood that the paper lifting plate 220 can maintain the tendency of rotating away from the paper feeding plate 210, that is, the guide rod 221 can also always maintain the tendency of moving away from the paper feeding plate 210. In the embodiment of the present application, an elastic member 500 can be arranged between the paper lifting plate 220 and the paper feeding plate 210, and the elastic member 500 can drive the paper lifting plate 220 to rotate away from the paper feeding plate 210. The paper lifting plate 220 can also be driven to rotate by a driving device, which is not limited in the embodiment.

[0047] In order to limit the inclination angle of the paper lifting plate 220, as shown in Figure 1 、 Figure 2 and Figure 3 , in the embodiment of the present application, the limiting assembly 300 can be connected with the main body 100, and the limiting assembly 300 can include a limiting member 310 and a driving assembly 320. The limiting member 310 can be used to abut against the guide rod 221 to block the paper lifting plate 220 from rotating away from the paper feeding plate 210. Specifically, as shown in Figure 4 , when the limiting member 310 is in a first state, the limiting member 310 can be located on the side of the guide rod 221 away from the paper feeding plate 210, and the limiting member 310 abuts against one end of the guide rod 221 away from the paper feeding plate 210, and applies a pressure to the guide rod 221 towards the paper feeding plate 210, so as to offset the potential energy of the paper lifting plate 220 rotating away from the paper feeding plate 210, thereby limiting the inclination angle of the paper feeding plate 210.

[0048] It can be understood that the guide rod 221 and the limiting member 310 are not fixedly connected, so the guide rod 221 driven by the paper lifting plate 220 or the paper feeding plate 210 has the possibility of being separated from the limiting member 310. When the guide rod 221 is separated from the limiting member 310, the limiting member 310 loses the ability to limit the guide rod 221. As shown in Figure 5 , at this time, the guide rod 221 can drive the paper lifting plate 220 to rotate away from the paper feeding plate 210, the guide rod 221 moves to the side away from the paper feeding plate 210, the limiting member 310 releases the limitation on the guide rod 221, and the limiting member 310 and the guide rod 221 are in a second state.

[0049] Therefore, in order to reposition the limiting member 310 to the position that limits the guide rod 221 and to reset the guide rod 221, refer to... Figure 5 and Figure 7 As shown, in this embodiment of the invention, when the paper feed tray 210 rotates away from the main body 100, the guide rod 221 disengages from the limiting member 310 and moves to the side of the limiting member 310 away from the paper feed tray 210, that is, the limiting member 310 and the guide rod 221 are in the second state. The driving assembly 320 can drive the limiting member 310 to rotate to the side of the guide rod 221 away from the paper feed tray 210, and make the limiting member 310 abut against the guide rod 221. At this time, the limiting member 310 is in the fourth state. It should be noted that, referring to... Figure 7 As shown, in this embodiment of the invention, the limiting member 310 can rotate clockwise to the side of the guide rod 221 away from the paper feed tray 210, or it can rotate counterclockwise and, after passing the guide rod 221, rotate to the side of the guide rod 221 away from the paper feed tray 210. This embodiment does not limit this. In order to reset the guide rod 221 and the paper feed tray 220, in this embodiment of the invention, the driving component 320 can also drive the limiting member 310 to move the guide rod 221 toward the paper feed tray 210, so as to drive the paper feed tray 220 to rotate toward the paper feed tray 210, thereby realizing the reset of the guide rod 221 and the paper feed tray 220, and restoring the guide rod 221 and the limiting member 310 from the fourth state to the first state.

[0050] In this embodiment of the invention, a paper feeding assembly 200 is provided on one side of the main body 100, so that the paper storage cavity 111 is located between the paper feeding tray 210 and the main body 100. The paper feeding tray 210 is rotatably connected to the main body 100, so the user can lift the paper feeding tray 210 to take paper, making paper taking more convenient and faster. By providing a limiting member 310, the limiting member 310 abuts against the guide rod 221 to prevent the lifting tray 220 from rotating away from the paper feeding tray 210, thereby realizing the control of the tilt angle of the lifting tray 220 and improving the controllability of the lifting tray 220. In addition, by providing a driving assembly 320, when the user lifts the paper feeding tray 210 to take paper, causing the guide rod 221 to disengage, the driving assembly 320 can drive the limiting member 310 to rotate to the guide rod 221. The limiting member 310 is positioned away from the paper feed tray 210 and abuts against the guide rod 221, thereby repositioning the limiting member 310 to restrict the guide rod 221 and restoring the guide rod 221 to its original control. After the limiting member 310 re-abuts against the guide rod 221, the drive assembly 320 can drive the limiting member 310 to move the guide rod 221 toward the paper feed tray 210, thereby causing the lifting tray 220 to rotate toward the paper feed tray 210. This achieves automatic reset of the lifting tray 220, which not only reduces the risk of failure of the paper feeding mechanism 1000 but also reduces the need for manual intervention, improves the reliability and stability of the paper feeding mechanism 1000, and provides users with a better user experience.

[0051] Referring to Figure 2 , Figure 3 and Figure 10 , in the embodiment of the present application, the limiting member 310 can be provided with two, which can be spaced apart and connected by a connecting rod 340, so as to realize the synchronous rotation of the two limiting members 310. The driving assembly 320 can be connected to the connecting rod 340, so as to drive the rotation of the two limiting members 310. Correspondingly, the guide rod 221 can be provided in the paper lifting tray 220, and the two ends of the guide rod 221 can protrude from the two ends of the paper lifting tray 220, respectively. The two limiting members 310 can abut against the corresponding end portions of the guide rod 221, respectively, so as to make the two ends of the guide rod 221 bear force evenly, reduce the risk of stress concentration and fracture of the guide rod 221, and improve the stability of the paper lifting tray 220.

[0052] Referring to Figure 2 , Figure 3 and Figure 6 , in the embodiment of the present application, the limiting member 310 can include a swing portion 311 and a rotating portion 312, which can be rotatably connected, and the swing portion 311 can also be rotatably connected to the main body 100. In this embodiment, when the limiting member 310 is located between the guide rod 221 and the paper feeding tray 210, i.e., the limiting member 310 and the guide rod 221 are in the second state, in order to enable the limiting member 310 to be positioned again at a position for limiting the guide rod 221, the swing portion 311 swings towards the guide rod 221, and when the end of the guide rod 221 towards the paper feeding tray 210 abuts against the rotating portion 312, the rotating portion 312 cannot continue to rotate with the swing portion 311, and the rotating portion 312 rotates around the swing portion under the action of the guide rod 221, so that the limiting member 310 as a whole presents a bent state, i.e., the limiting member 310 and the guide rod 221 are in the third state. After the limiting member 310 as a whole is bent, it can continue to rotate away from the paper feeding tray 210 and pass the guide rod 221. Specifically, the swing portion 311 can drive the rotating portion 312 to move to the side of the guide rod 221 away from the paper feeding tray 210, and abut against the end of the guide rod 221 away from the paper feeding tray 210, so as to enable the limiting member 310 to be positioned again at a position for limiting the guide rod 221, while reducing the rotation stroke of the limiting member 310, shortening the rotation time of the limiting member 310, and improving the efficiency of the limiting assembly 300 in resetting the paper lifting tray 220.

[0053] Referring to Figure 2 , Figure 8 and Figure 10As shown in FIGS. 15, 16 and 17, in the embodiment of the present application, the limiting assembly 300 can include a reset member 330, one end of which is connected to the swing part 311 and the other end of which is connected to the rotating part 312. It should be noted that the reset member 330 can be a tension spring, and based on this, the relaxed state of the reset member 330 is the state in which the limiting member 310 as a whole assumes a straight state; when the rotating part 312 rotates relative to the swing part 311, the reset member 330 assumes a tight state. Based on this, after the swing part 311 drives the rotating part 312 to move from the side of the guide rod 221 to the side away from the paper tray 210 of the guide rod 221, the reset member 330 can drive the rotating part 312 to rotate away from the guide rod 221 to reset, so that the limiting member 310 recovers from the bent state to the straight state.

[0054] It can be understood that when the paper tray 210 rotates away from the main body 100, the paper tray 210 will drive the paper lifting tray 220 and the guide plate to move away from the limiting assembly 300, so that the guide rod 221 is disengaged from the limiting member 310. In order to know in time that the guide rod 221 is disengaged, with reference to Figure 1 、 Figure 2 and Figure 3 As shown in FIGS. 15, 16 and 17, in the embodiment of the present application, the paper feeding mechanism 1000 can include a sensor 400, which can be arranged on the main body 100. Specifically, the sensor 400 can be fixedly connected to the main body 100 and located on one side of the paper feeding assembly 200. It should be noted that the sensor 400 can detect whether the paper tray 210 rotates relative to the main body 100. Based on this, the sensor 400 can be configured to trigger the sensor 400 when the paper tray 210 rotates away from the main body 100, and the sensor 400 triggers the driving assembly 320 to drive the limiting member 310 to rotate, that is, the sensor 400 can confirm whether the guide rod 221 is disengaged by detecting whether the paper tray 210 rotates away from the main body 100, or when the paper tray 210 rotates away from the main body 100 and the paper tray 210 rotates to a position that can disengage the guide rod 221, the sensor 400 is triggered to confirm whether the guide rod 221 is disengaged. When it is confirmed that the guide rod 221 is disengaged, the sensor 400 can timely trigger the driving assembly 320 to drive the limiting member 310 to rotate to the position again to limit the guide rod 221, which not only improves the resetting efficiency of the guide rod 221, but also improves the automation degree of the paper feeding mechanism 1000 and reduces the need for human intervention.

[0055] With reference to Figure 1 、 Figure 2 and Figure 9As shown in the embodiment of the present application, the main body 100 can include a base 110 and a mounting seat 120, wherein the base 110 can be arranged on the lower side of the paper tray 210 and surrounded with the paper tray 210 to form a paper storage cavity 111, and the mounting seat 120 can be arranged on the upper side of the base 110 and located on one side of the paper feeding assembly 200. The mounting seat 120 can be integrally formed with the base 110, or can be fixedly connected with the base 110 by screw connection or buckle connection, etc. The skilled in the art can select the arrangement according to the actual situation, which is not limited in the embodiment. The mounting seat 120 can be rotatably connected with the paper tray 210, that is, the paper tray 210 can rotate around the mounting seat 120 towards or away from the base 110. The mounting seat 120 can be provided with a first guide groove 121, and the paper tray 210 can be provided with a guide piece 211 slidably connected with the first guide groove 121. Specifically, the guide piece 211 can be arranged in the first guide groove 121, and when the paper tray 210 rotates around the mounting seat 120 towards or away from the base 110, the guide piece 211 can move along the first guide groove 121 under the driving of the paper tray 210. It can be understood that the first guide groove 121 limits the movement of the guide piece 211, thereby guiding the rotation of the paper tray 210 and improving the direction accuracy of the rotation of the paper tray 210.

[0056] Referring to Figure 1 , Figure 2 and Figure 10 As shown in the embodiment of the present application, the limiting assembly 300 can be mounted on the mounting seat 120. It can be understood that the mounting seat 120 can be provided with a mounting groove 122 matched with the limiting assembly 300, and the driving assembly 320 can be fixedly connected in the mounting groove 122, thereby improving the integrity of the paper feeding mechanism 1000. It should be noted that the driving assembly 320 can be connected with the mounting seat 120 by screw connection, or can be connected with the mounting seat 120 by buckle connection, or can be mounted on the mounting seat 120 by other forms of fixed connection, and the skilled in the art can select the arrangement according to the actual situation, which is not limited in the embodiment.

[0057] Referring to Figure 1 , Figure 2 and Figure 10As shown, in this embodiment of the invention, the drive assembly 320 may include a driver 321, a worm gear 322, a turbine gear 323, and a transmission assembly 324. One end of the worm gear 322 is connected to the driver 321, and the other end is connected to the turbine gear 323. One end of the transmission assembly 324 is connected to the turbine gear 323, and the other end is connected to the limiting member 310. It can be understood that the driver 321 can drive the turbine gear 323 to rotate via the worm gear 322, and the rotation of the turbine gear 323 can drive the connecting rod 340 to rotate via the transmission assembly 324, thereby driving the limiting member 310. It should be noted that the arrangement of the turbine gear 323 and worm gear 322 can reduce the rotational speed of the driver 321 to the final required rotational speed of the drive assembly 320. A drive assembly 320 with greater torque can be obtained through a high reduction ratio. Based on this, the high reduction ratio drive assembly 320 can have a self-locking function, reducing the risk of damage caused by the driver 321 rotating in the opposite direction due to user error, and improving the safety and reliability of the paper feeding mechanism 1000.

[0058] Reference Figure 1 , Figure 2 and Figure 3 As shown in this embodiment of the invention, a second guide groove 212 may be provided at the position corresponding to the guide rod 221 on the paper feed tray 210. The second guide groove 212 may be provided at one end of the paper feed tray 210 away from the rotatable connection between the paper feed tray 210 and the lifting tray 220. It should be noted that there may be two second guide grooves 212, which may be respectively provided at both ends of the paper feed tray 210. The guide rod 221 may be slidably connected to the second guide grooves 212. Specifically, both ends of the guide rod 221 may pass through the two second guide grooves 212 respectively. The second guide grooves 212 may play a guiding role when the guide rod 221 moves away from the main body 100, thereby improving the accuracy of the direction of movement of the guide rod 221 and the accuracy of the direction of rotation of the lifting tray 220.

[0059] Reference Figure 1 and Figure 2 As shown, in this embodiment of the invention, the paper feeding mechanism 1000 may include an elastic element 500, which may be disposed between the paper feed tray 210 and the paper lifting tray 220. The elastic element 500 is used to drive the paper lifting tray 220 to rotate away from the paper feed tray 210. It can be understood that the elastic element 500 can serve as a power source for the rotation of the paper lifting tray 220 away from the paper feed tray 210. Specifically, when the paper lifting tray 220 is in its lowest position, the elastic element 500 may be in a compressed state; when the limiting member 310 releases the restriction on the guide rod 221, the elastic element 500 may gradually return from the compressed state to a relaxed state, thereby providing power for the lifting of the paper lifting tray 220.

[0060] Reference Figure 1 , Figure 2 and Figure 3As shown, in the embodiment of the present application, the opposite ends of the paper lifting plate 220 can be provided with outwardly extending connecting portions 222, the paper supply plate 210 can be provided with grooves 213 corresponding to the connecting portions 222, the connecting portions 222 are arranged in the grooves 213 and can rotate relative to the grooves 213. Specifically, the connecting portions 222 can be provided with two, and the grooves 213 can also be provided with two opposite to them, the two connecting portions 222 are respectively connected with the two grooves 213 in rotation, so as to realize the rotation connection of the paper lifting plate 220 and the paper supply plate 210, and make the paper lifting plate 220 can adjust its inclination angle by lifting or landing.

[0061] The embodiment of the present application also provides a printing device comprising the paper feeding mechanism 1000 of the above embodiment.

[0062] Since the printing device adopts all the technical solutions of the paper feeding mechanism 1000 of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0063] The above is the detailed description of the embodiments of the present application combined with the drawings, and finally it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A paper feeding mechanism characterized by comprising: The paper feeding mechanism comprises a main body, a paper feeding assembly arranged on one side of the main body, a limiting assembly connected to the main body, and a sensor arranged on the main body. The paper feeding assembly comprises a paper feeding disc and a paper lifting disc. The paper feeding disc is rotationally connected to the main body and forms a paper storage cavity together with the main body. One end of the paper lifting disc is rotationally connected to the paper feeding disc, and the other end is provided with a guide rod which is slidingly connected to the paper feeding disc. The paper lifting disc can rotate away from the paper feeding disc and drive the guide rod to move away from the paper feeding disc.

2. The paper feeding mechanism according to claim 1, characterized in that, The limiting assembly comprises a limiting piece and a driving assembly.

3. The paper feeding mechanism according to claim 2, characterized in that, When the paper feeding disc rotates away from the main body, the guide rod is separated from the limiting piece and moves to a side of the limiting piece away from the paper feeding disc.

4. The paper feeding mechanism according to claim 1, characterized by The driving assembly can drive the limiting piece to rotate to a side of the guide rod away from the paper feeding disc and make the limiting piece abut against the guide rod.

5. The paper feeding mechanism according to claim 1, characterized in that, The driving assembly can also drive the limiting piece to drive the guide rod to move towards the paper feeding disc, so as to drive the paper lifting disc to rotate towards the paper feeding disc.

6. The paper feeding mechanism according to claim 5, characterized in that, The limiting piece comprises a swing part and a rotating part which are rotationally connected.

7. The paper feeding mechanism according to claim 1, characterized in that, When the limiting piece is located between the guide rod and the paper feeding disc, the swing part can swing towards the guide rod. One end of the guide rod towards the paper feeding disc abuts against the rotating part and makes the rotating part rotate around the swing part. The swing part can drive the rotating part to move to a side of the guide rod away from the paper feeding disc and abut against one end of the guide rod away from the paper feeding disc. The limiting assembly comprises a reset piece. One end of the reset piece is connected to the swing part, and the other end is connected to the rotating part. After the swing part drives the rotating part to move from a side of the guide rod towards the paper feeding disc to a side of the guide rod away from the paper feeding disc, the reset piece can drive the rotating part to rotate away from the guide rod to reset. The sensor is configured to be triggered when the paper feeding disc rotates away from the main body. The sensor triggers the driving assembly to drive the limiting piece to rotate. The main body comprises a base and a mounting seat. The base is arranged on the lower side of the paper feeding disc and forms the paper storage cavity together with the paper feeding disc. The mounting seat is arranged on the upper side of the base and located on one side of the paper feeding assembly. The mounting seat is rotationally connected to the paper feeding disc. The mounting seat is provided with a first guide groove. The paper feeding disc is provided with a guide piece which is slidingly connected to the first guide groove. The limiting assembly is mounted on the mounting seat. The driving assembly comprises a driver, a worm, a worm wheel, and a transmission assembly. One end of the worm is connected to the driver, and the other end is connected to the worm wheel. One end of the transmission assembly is connected to the worm wheel, and the other end is connected to the limiting piece. The paper feeding disc is provided with a second guide groove. The second guide groove is arranged in the paper feeding disc away from one end of the paper feeding disc rotationally connected to the paper lifting disc. The guide rod is slidingly connected to the second guide groove.

8. The paper feeding mechanism according to claim 1, characterized in that, The feeding mechanism comprises an elastic member arranged between the paper supply tray and the paper lifting tray, and configured to drive the paper lifting tray to rotate away from the paper supply tray.

9. The paper feeding mechanism according to claim 1, characterized in that, The paper lifting tray is provided with outwardly extending connecting portions at opposite ends thereof, and the paper supply tray is provided with grooves corresponding to the connecting portions, the connecting portions being arranged in the grooves and being able to rotate relative to the grooves.

10. A printing apparatus characterized by comprising: A paper feeding apparatus comprising a feeding mechanism as claimed in any one of claims 1 to 9.

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