Paper feeding mechanism and printing equipment

Abstract

The utility model particularly discloses a paper feeding mechanism and printing equipment, and belongs to the technical field of paper transmission. Comprising a paper supply disc, a paper lifting disc and a buffer assembly, the paper lifting disc is arranged in the mounting groove, one end of the paper lifting disc is rotationally connected with the side wall of the mounting groove, and an elastic piece is arranged between the other end of the paper lifting disc and the paper supply disc and used for driving the paper lifting disc to rotate back to the paper supply disc; the buffering assembly comprises an abutting part and a driving part which are connected with each other, the abutting part is connected to the paper lifting disc, and the driving part is used for driving the abutting part to move towards the side wall of the mounting groove and abut against the side wall of the mounting groove so as to slow down rotation of the paper lifting disc back to the paper supply disc. Due to the fact that the abutting piece abuts against the side wall of the paper supply disc installation groove, the speed of rotation of the paper lifting disc back on to the paper supply disc is reduced, the risk that the paper lifting disc collides with the paper supply disc and other components when the elastic piece is instantly released from the compressed state is reduced, the probability of damage to the components is reduced, and the possibility of noise generated by collision is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of paper transmission, in particular to a paper feeding mechanism and printing equipment. Background Art

[0002] The paper lifting tray of the paper feeding mechanism can adjust its own tilt angle. An elastic member is provided between the paper supply tray and the paper lifting tray. By providing a limit assembly and the elastic member to abut against the upper and lower sides of the movable end of the paper lifting tray, the height of one end of the paper lifting tray is limited, thereby adjusting the tilt angle of the paper lifting tray. At present, when the user lifts the paper supply tray to take paper, the movable end of the paper lifting tray disengages from the limit assembly. Under the elastic force of the elastic member, the movable end of the paper lifting tray hits the paper supply tray and other components, causing the structure of the paper lifting tray and the paper supply tray to be easily damaged, and generating noise. And when the user improperly presses down the paper lifting tray and releases it instantly, under the action of the elastic member, the movable end of the paper lifting tray hits the limit assembly and other components, causing structural damage to the components and generating noise. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a paper feeding mechanism that reduces the possibility of a paper lifting tray colliding with other components, reduces the risk of component damage, and reduces noise.

[0004] The utility model also provides a printing device having the above-mentioned paper feeding mechanism.

[0005] According to a first aspect of the present utility model, a paper feeding mechanism is provided, comprising a paper supply tray, a paper lifting tray and a buffer assembly, wherein the paper supply tray is provided with a mounting slot; the paper lifting tray is arranged in the mounting slot, one end of the paper lifting tray is rotatably connected to the side wall of the mounting slot, and an elastic member is provided between the other end and the paper supply tray, and the elastic member is used to drive the paper lifting tray to rotate away from the paper supply tray; the buffer assembly comprises an abutment member and a driving member connected to each other, the abutment member is connected to the paper lifting tray, and the driving member is used to drive the abutment member to move toward the side wall of the mounting slot and abut against the side wall of the mounting slot to slow down the rotation of the paper lifting tray away from the paper supply tray.

[0006] A paper feeding mechanism according to an embodiment of the present invention has at least the following beneficial effects:

[0007] In this embodiment, one end of the paper lift tray is rotatably connected to the side wall of the mounting slot, and an elastic member is provided between the other end and the paper supply tray, so that when the elastic member is compressed and released, the paper lift tray rotates away from the paper supply tray. An abutment member is connected to the paper lift tray. When driven by the driving member, the abutment member moves toward the side wall of the mounting slot of the paper supply tray and abuts against the side wall of the mounting slot of the paper supply tray to slow down the speed at which the paper lift tray rotates away from the paper supply tray. This reduces the risk of the paper lift tray colliding with the paper supply tray and other components when the elastic member is instantly released from the compressed state, thereby reducing the probability of damage to components and the possibility of noise generated by impact.

[0008] According to some embodiments of the present invention, the paper lifting plate is provided with a mounting hole along the side wall in the width direction of the mounting groove, the mounting hole extends along the width direction of the mounting groove and is arranged opposite to the side wall of the mounting groove, the buffer assembly is installed in the mounting hole, and the abutment member can move along the mounting hole and protrude from the mounting hole to abut against the side wall of the mounting groove.

[0009] According to some embodiments of the present invention, the driving member is a spring, and the abutment member is provided with a connecting groove at one end close to the paper lifting plate. One end of the spring is connected to the bottom wall of the mounting hole, and the other end is passed through the connecting groove and connected to the abutment member.

[0010] According to some embodiments of the present invention, one end of the driving member is connected to the bottom wall of the mounting hole, and the other end is connected to the abutting member. The driving member is one of a spring, a foam member and a rubber member.

[0011] According to some embodiments of the present invention, the paper feeding mechanism includes two buffer components, each buffer component includes the driving component and the abutment component, the paper lifting plate is provided with the mounting holes on the two side walls along the width direction of the mounting groove, the two buffer components are installed in the two mounting holes one by one, and the two abutment components are respectively abutted against the two side walls of the mounting groove along the width direction.

[0012] According to some embodiments of the present invention, an arc-shaped surface is provided at the end of the abutment member facing the side wall of the installation groove.

[0013] According to some embodiments of the present invention, the driving member is a spring, and the abutment member is provided with a connecting groove at one end close to the paper lifting plate. One end of the spring is connected to the bottom wall of the mounting hole, and the other end is passed through the connecting groove. The end of the abutment member facing the side wall of the mounting groove is provided with a through hole connected to the connecting groove. The buffer assembly also includes a ball and a base. The base and the ball are arranged in sequence in the connecting groove along the direction of the abutment member toward the side wall of the mounting groove. The base is connected to the spring, and the ball is passed through the through hole and protrudes from the abutment member to be connected to the side wall of the mounting groove.

[0014] According to some embodiments of the present invention, the mounting groove is provided with a groove along the side wall in the width direction thereof, the paper lifting tray is provided with a rotating shaft corresponding to the groove, the rotating shaft is passed through the groove and can rotate relative to the groove, the paper lifting tray is provided with a guide rod at one end away from the rotating shaft, the paper lifting tray can drive the guide rod to move back toward the paper supply tray, the paper feeding mechanism includes a limiting assembly, the limiting assembly includes a limiting member and a driving assembly, the driving assembly is used to drive the limiting member to rotate and abut against the guide rod to prevent the paper lifting tray from rotating back toward the paper supply tray or push the paper lifting tray to rotate toward the paper supply tray.

[0015] According to some embodiments of the present invention, the paper feeding mechanism includes a mounting seat, the mounting seat is located on one side of the paper supply tray, and the driving assembly is installed on the mounting seat.

[0016] According to a second aspect of the present invention, a printing device is provided, comprising the paper feeding mechanism disclosed in the first aspect of the present invention.

[0017] A printing device according to an embodiment of the present invention has at least the following beneficial effects:

[0018] The printing device adopts the paper feeding mechanism of the embodiment of the first aspect. The paper feeding mechanism has one end of a paper lifting tray rotatably connected to the side wall of the mounting groove, and an elastic member is provided between the other end and the paper supply tray, so that when the elastic member is compressed and released, the paper lifting tray rotates away from the paper supply tray. The abutment member is connected to the paper lifting tray. When driven by the driving member, the abutment member faces and abuts against the side wall of the mounting groove of the paper supply tray to slow down the speed at which the paper lifting tray rotates away from the paper supply tray, thereby reducing the risk of the paper lifting tray colliding with the paper supply tray and other components when the elastic member is instantly released from the compressed state, reducing the probability of damage to components and reducing the possibility of noise generated by the impact.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a structural diagram of an embodiment of a paper feeding mechanism of the present utility model;

[0022] Figure 2 This is an exploded schematic diagram of an embodiment of a paper feeding mechanism of the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged view of part A in the middle;

[0024] Figure 4 for Figure 2 A partial enlarged view of part B in the middle;

[0025] Figure 5 for Figure 2 A partial enlarged view of the middle C area

[0026] Figure 6 This is a side sectional view of an embodiment of a paper lifting tray of the present invention;

[0027] Figure 7 for Figure 4 A partial enlarged view of the D part in the middle;

[0028] Figure 8 This is an exploded schematic diagram of an embodiment of a buffer assembly of the present invention;

[0029] Figure 9 This is a structural diagram of another embodiment of the buffer assembly of the present utility model;

[0030] Figure 10 This is an exploded schematic diagram of another embodiment of the buffer assembly of the present invention;

[0031] Figure 11 This is a schematic diagram of a first state of a limiting member and a guide rod in an embodiment of a paper feeding mechanism of the present invention;

[0032] Figure 12 This is a schematic diagram of the second state of the limiting member and the guide rod in the embodiment of the paper feeding mechanism of the present invention.

[0033] Reference numerals:

[0034] Paper feeding mechanism 10;

[0035] Paper supply tray 100; mounting slot 110; groove 111; limiting plate 112;

[0036] Paper lifting tray 200; mounting hole 210; rotating shaft 220; guide rod 230;

[0037] elastic member 300;

[0038] Buffer assembly 400; abutment member 410; connecting groove 411; through hole 412; driving member 420; ball 430; base 440;

[0039] Limiting assembly 500; limiting member 510; driving assembly 520; connecting rod 530;

[0040] Mounting seat 600. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by up, down, inside, outside, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0044] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0045] In the related art, the paper lifting tray of the paper feeding mechanism can adjust its own inclination angle. An elastic member is provided between the paper supply tray and the paper lifting tray, and a limit assembly and the elastic member are provided to abut against the upper and lower sides of the movable end of the paper lifting tray to limit the height of one end of the paper lifting tray, thereby adjusting the inclination angle of the paper lifting tray. At present, when the user lifts the paper supply tray to take paper, the movable end of the paper lifting tray disengages from the limit assembly, and under the elastic force of the elastic member, the movable end of the paper lifting tray hits the paper supply tray and other components, causing the structure of the paper lifting tray and the paper supply tray to be easily damaged, and generating noise. And when the user improperly presses down the paper lifting tray and releases it, under the action of the elastic member, the movable end of the paper lifting tray hits the limit assembly and other components, causing the structure of the components to be damaged and generating noise.

[0046] To this end, some embodiments of the present invention provide a paper feeding mechanism 10, specifically referring to the accompanying drawings of the specification. Figures 1 to 12 The paper feeding mechanism 10 will be described.

[0047] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the paper feeding mechanism 10 can be applied to a printing device, and the paper feeding mechanism 10 can feed paper for the printing device. The paper feeding mechanism 10 includes a paper supply tray 100, a paper lifting tray 200 and a buffer assembly 400. The paper supply tray 100 is provided with a mounting groove 110, and the paper lifting tray 200 is located in the mounting groove 110. One end of the paper lifting tray 200 is rotatably connected to the side wall of the mounting groove 110, and an elastic member 300 is provided between the other end of the paper lifting tray 200 and the paper supply tray 100. Both ends of the elastic member 300 abut against the paper supply tray 100 and the paper lifting tray 200. The elastic member 300 is used to drive the paper lifting tray 200 to rotate away from the paper supply tray 100. The elastic member 300 can support the paper lifting tray 200 so that the paper lifting tray 200 always maintains a tendency to rotate in a direction away from the paper supply tray 100. It is understandable that by adjusting the elastic force of the elastic member 300 , the tilt angle of the paper lifting tray 200 can be adjusted, thereby adjusting the paper feeding force of the paper feeding mechanism 10 .

[0048] Reference Figure 2 、 Figure 3 and Figure 4 In some embodiments of the present invention, the mounting slot 110 is provided with a groove 111 along the sidewall thereof in the width direction, and the paper lift tray 200 is provided with a rotating shaft 220. The rotating shaft 220 corresponds to the groove 111, is disposed through the groove 111, and is capable of rotating relative to the groove 111. As the rotating shaft 220 rotates relative to the groove 111, one end of the paper lift tray 200 is rotatably connected to the sidewall of the mounting slot 110, so that the paper lift tray 200 can rotate relative to the paper supply tray 100 to adjust the tilt angle of the paper lift tray 200.

[0049] It is understood that the paper feeding mechanism 10 can adjust the paper feeding force according to the type of paper, that is, adjust the inclination angle of the paper lifting tray 200, so that the paper feeding mechanism 10 can adapt to the feeding of different types of paper, thereby improving the applicability of the paper feeding mechanism 10. Different types of paper can have different thicknesses, hardnesses, or surface properties, which are not limited in this application.

[0050] It is understandable that the elastic member 300 can be an elastic structure such as a spring or a bellows, and the structure and material of the elastic member 300 can be selected according to actual production applications, and this application does not limit this.

[0051] It is understandable that when the elastic member 300 is compressed and released instantly, due to the elastic force of the elastic member 300, the paper lifting tray 200 rotates at a certain speed in the direction away from the paper supply tray 100, which may cause the paper lifting tray 200 to collide with other components, possibly causing damage to the paper lifting tray 200 and other components, and causing noise from the collision. Figure 3 、 Figure 7 and Figure 8 In some embodiments of the present invention, the buffer assembly 400 includes an abutment member 410 and a driving member 420 that are connected to each other. The buffer assembly 400 is connected to the paper lifting tray 200, and the abutment member 410 is movably connected to the paper lifting tray 200. Driven by the driving member 420, the abutment member 410 moves toward the side wall of the mounting groove 110 of the paper supply tray 100 and abuts against the side wall of the mounting groove 110 of the paper supply tray 100, thereby slowing down the speed at which the paper lifting tray 200 rotates away from the paper supply tray 100, thereby making the rotation of the paper lifting tray 200 relative to the paper supply tray 100 more stable, avoiding the excessive rotation speed of the paper lifting tray 200 caused by the compression of the elastic member 300 and the instantaneous release, thereby reducing the risk of the paper lifting tray 200 colliding with other components and reducing the possibility of component damage. At the same time, the possibility of noise generated by the impact is reduced.

[0052] Reference Figure 3 and Figure 7 In some embodiments of the present invention, a mounting hole 210 is provided on the side wall of the paper lifting tray 200 along the width direction of the mounting slot 110. The mounting hole 210 extends along the width direction of the mounting slot 110. The mounting hole 210 is arranged opposite to the side wall of the mounting slot 110, that is, the opening of the mounting hole 210 faces the side wall of the mounting slot 110. The buffer assembly 400 is mounted on the mounting hole 210, and the abutment 410 passes through the mounting hole 210. The abutment 410 can move along the mounting hole 210 and protrude from the mounting hole 210. Since the abutment 410 can move along the mounting hole 210 and protrude from the mounting hole 210, so that the abutment 410 can abut against the side wall of the mounting slot 110, the buffer assembly 400 can slow down the speed at which the paper lifting tray 200 rotates relative to the paper supply tray 100. By allowing the abutment member 410 to move along the mounting hole 210 , the mounting hole 210 can guide the movement of the abutment member 410 , making the movement of the abutment member 410 more stable. At the same time, it is convenient for the abutment member 410 to be installed on the paper lifting tray 200 , simplifying the installation process of the abutment member 410 .

[0053] Reference Figure 7 and Figure 8In some embodiments of the present invention, the driving member 420 is a spring, a foam member, or a rubber member. The driving member 420 passes through the mounting hole 210, one end of the driving member 420 is connected to the bottom wall of the mounting hole 210, and the other end is connected to the abutment member 410. It can be understood that since the end of the abutment member 410 away from the driving member 420 abuts against the side wall of the mounting groove 110, so that the driving member 420 is in a compressed state, under the elastic action of the driving member 420, the abutment member 410 has a tendency to move toward the side wall of the mounting groove 110, thereby causing the abutment member 410 to press against the side wall of the mounting groove 110. Since the abutment member 410 presses against the side wall of the mounting groove 110, the abutment member 410 can slow down the speed at which the paper lifting tray 200 rotates relative to the paper supply tray 100, reducing the risk of the paper lifting tray 200 hitting other components and reducing noise. It is understandable that the driving member 420 is a spring, a foam member, or a rubber member, which can be selected according to actual production applications and is not limited in this application.

[0054] It is understandable that the driving member 420 is a spring, a foam member, or a rubber member, and one end of the driving member 420 is connected to the bottom wall of the mounting hole 210. One end of the driving member 420 can be directly in contact with the bottom wall of the mounting hole 210, so that when the driving member 420 is installed, it can be directly inserted into the mounting hole 210, which facilitates the installation of the buffer assembly 400 and reduces the difficulty of installing the buffer assembly 400. When the driving member 420 is a spring, the end of the spring can be provided with a pin and the bottom wall of the mounting hole 210 can be provided with a pin hole, and the pin is inserted into the pin hole. The connection method between the driving member 420 and the mounting hole 210 can be selected according to actual production applications, and this application does not limit it here.

[0055] It can be understood that, along the extension direction of the mounting hole 210 , that is, the width direction of the mounting groove 110 , the bottom wall of the mounting hole 210 is a wall surface away from the opening of the mounting hole 210 .

[0056] Reference Figure 7 and Figure 8In other embodiments of the present invention, the driving member 420 is a spring, and the driving member 420 passes through the mounting hole 210. A connecting groove 411 is provided at one end of the abutment member 410 close to the paper lifting plate 200. One end of the driving member 420 passes through the connecting groove 411 and is connected to the abutment member 410, and the other end is connected to the bottom wall of the mounting hole 210. Since one end of the driving member 420 passes through the connecting groove 411, the connection between the driving member 420 and the abutment member 410 is more stable, thereby increasing the reliability of the movement of the abutment member 410. By passing one end of the driving member 420 through the connecting groove 411, the structure of the buffer assembly 400 is made more compact, thereby improving space utilization. At the same time, if the mounting hole 210 has a certain size limitation, one end of the driving member 420 is passed through the connecting groove 411 to ensure that the driving member 420 has sufficient length, thereby ensuring the structural strength of the driving member 420, and then the driving member 420 has a certain elastic force to drive the abutment member 410 to move toward the side wall of the mounting groove 110, thereby improving the reliability of the buffer assembly 400.

[0057] It is understandable that the driving member 420 is a spring, and one end of the driving member 420 passes through the connecting groove 411 and is connected to the abutment 410. One end of the driving member 420 can be directly abutted against the bottom wall of the connecting groove 411, so that when the driving member 420 is installed, it can be directly passed through the connecting groove 411, which is convenient for the installation of the buffer assembly 400 and reduces the difficulty of installing the buffer assembly 400. Alternatively, the end of the spring can be provided with a latch and the bottom wall of the mounting hole 210 can be provided with a pin hole, and the latch passes through the pin hole. The connection method of the driving member 420 and the abutment 410 can be selected according to actual production applications, and this application does not limit it here.

[0058] Reference Figure 7 and Figure 8 In some embodiments of the present invention, the end of the abutment member 410 facing the side wall of the mounting groove 110 is provided with an arcuate surface. This arcuate surface abuts the side wall of the mounting groove 110, reducing the contact stress between the abutment member 410 and the side wall of the mounting groove 110. This reduces the possibility of stress concentration causing the paper lift tray 200 to swing and deflect during rotation, thereby making the abutment member 410 slow down the rotation of the paper lift tray 200 away from the paper supply tray 100 and more stable. At the same time, the wear between the abutment member 410 and the mounting groove 110 is reduced, thereby increasing the lifespan of the abutment member 410 and the paper supply tray 100.

[0059] Reference Figure 9 and Figure 10In other embodiments of the present invention, the driving member 420 is a spring, and the driving member 420 passes through the mounting hole 210. A connecting groove 411 is provided at one end of the abutting member 410 close to the paper lifting tray 200. One end of the driving member 420 is connected to the bottom wall of the mounting hole 210, and the other end passes through the connecting groove 411. A through hole 412 is provided at the end of the side wall of the abutting member 410 facing the mounting groove 110. That is, the through hole 412 is located at the end of the abutting member 410 away from the driving member 420, and the through hole 412 is connected to the connecting groove 411. The buffer assembly 400 is further provided with a ball 430 and a base 440. The base 440 and the ball 430 are sequentially inserted into the connecting groove 411 along the direction from the abutment member 410 toward the side wall of the mounting groove 110. The two ends of the base 440 abut against the driving member 420 and the ball 430. The ball 430 is inserted into the through hole 412 and protrudes from the abutment member 410. That is, the through hole 412 exposes the ball 430 from the abutment member 410 so that the ball 430 abuts against the side wall of the mounting groove 110. Since the driving member 420 is a spring, under the elastic force of the driving member 420, the ball 430 has a tendency to move toward the side wall of the mounting groove 110, so that the ball 430 abuts and presses against the side wall of the mounting groove 110, thereby slowing down the speed at which the paper lifting tray 200 rotates away from the paper supply tray 100, reducing the risk of the paper lifting tray 200 hitting other components and reducing noise. Because the ball bearing 430 has an arcuate surface and contacts the wall of the mounting groove 110, the contact stress between the ball bearing 430 and the side wall of the mounting groove 110 is reduced, so that the abutment member 410 can slow down the rotation of the paper lifting tray 200 away from the paper supply tray 100 and is more stable. At the same time, the wear between the abutment member 410 and the mounting groove 110 is reduced.

[0060] Reference Figure 6 In some embodiments of the present invention, the paper feeding mechanism 10 has two buffer components 400, each buffer component 400 includes a driving member 420 and an abutment member 410, and the two side walls of the paper lifting tray 200 along the width direction of the mounting groove 110 are respectively provided with mounting holes 210, and the two buffer components 400 are installed in the two mounting holes 210 in a one-to-one correspondence, and the two abutment members 410 respectively abut against the two side walls of the mounting groove 110 along the width direction. By providing two buffer components 400, the vibration and impact generated by the paper lifting tray 200 during movement can be more comprehensively reduced, thereby improving the stability of the paper feeding mechanism 10. By having the two abutment members 410 abut against the two side walls of the mounting groove 110 along the width direction, the overall force of the paper lifting tray 200 is made more uniform during the rotation process, avoiding uneven force during the rotation of the paper lifting tray 200 and causing deflection, thereby improving the stability and reliability of the paper feeding mechanism 10. At the same time, by providing two buffer components 400 , the load during the rotation of the paper lifting tray 200 can be dispersed, thereby avoiding excessive load on one buffer component 400 and reducing the risk of failure of the buffer component 400 .

[0061] Reference Figure 5 In some embodiments of the present invention, a guide rod 230 is provided at one end of the paper lifting tray 200 away from the rotating shaft 220. When the paper lifting tray 200 rotates in a direction away from the paper supply tray 100, the paper lifting tray 200 drives the guide rod 230 to move in a direction away from the paper supply tray 100. The paper supply tray 100 is provided with a limit plate 112, and along the height direction of the paper supply tray 100, the limit plate 112 is located on the upper side of the mounting groove 110. The limit plate 112 can abut against the guide rod 230, and the limit plate 112 is used to limit the height of the paper lifting tray 200 relative to the paper supply tray 100, thereby preventing the paper lifting tray 200 from being excessively lifted relative to the paper supply tray 100.

[0062] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the paper feeding mechanism 10 is further provided with a limiting assembly 500, which includes a limiting member 510 and a driving assembly 520. The driving assembly 520 is used to drive the limiting member 510 to rotate so that the limiting member 510 abuts against the guide rod 230. Under the drive of the driving assembly 520, the limiting member 510 prevents the paper lifting tray 200 from rotating away from the paper supply tray 100 or drives the paper lifting tray 200 to rotate toward the paper supply tray 100.

[0063] Reference Figure 11 In some embodiments of the present invention, when the limiting assembly 500 is in the first state, the limiting member 510 is located on the side of the guide rod 230 away from the paper supply tray 100 along the height direction of the paper supply tray 100 to prevent the paper lifting tray 200 from rotating in the direction away from the paper supply tray 100. By respectively arranging the limiting members 510 and the elastic member 300 on the upper and lower sides of the paper lifting tray 200 along the height direction of the paper supply tray 100, the paper lifting tray 200 is limited to maintain a certain inclination angle, thereby enabling the paper feeding mechanism 10 to maintain a certain paper feeding force, ensuring the stable paper feeding of the paper feeding mechanism 10 and ensuring the reliability of the paper feeding mechanism 10. The limiting member 510 is driven to rotate by the driving assembly 520 to adjust the inclination angle of the paper lifting tray 200, thereby adjusting the paper feeding force of the paper feeding mechanism 10. The driving assembly 520 can adjust the paper feeding force of the paper feeding mechanism 10 so that the paper feeding mechanism 10 is suitable for conveying different types of paper, thereby improving the applicability and flexibility of the paper feeding mechanism 10. At the same time, the paper feeding force can be accurately adjusted without manual adjustment, thereby improving production efficiency.

[0064] It is understood that when the limiter 510 and the guide rod 230 are in the first state, if the user improperly presses down the paper lift tray 200 and releases it instantly, the elastic force of the elastic member 300 causes the paper lift tray 200 to have an impact force in the direction away from the paper supply tray 100. Since the buffer assembly 400 slows down the speed at which the paper lift tray 200 rotates away from the paper supply tray 100, the speed at which the guide rod 230 moves toward the limiter 510 is slowed down, reducing the risk of the guide rod 230 colliding with the limiter 510, reducing the probability of damage to the guide rod 230 and the limiter 510, and improving the service life of the components. At the same time, the possibility of noise generated by the impact is reduced, and the risk of damage to the paper feeding mechanism 10 caused by improper user operation is reduced.

[0065] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the paper feed mechanism 10 further includes a mounting base 600 located on one side of the paper supply tray 100, and the drive assembly 520 is mounted on the mounting base 600. A paper storage cavity is provided below the paper supply tray 100. It is understood that the paper feed mechanism 10 feeds paper to the printing device, and the printing device receives and delivers the printed paper after printing. The delivered paper is temporarily stored in the paper storage cavity, and the user removes the printed paper from the paper storage cavity.

[0066] Reference Figure 2 It is understood that one end of the paper supply tray 100 is rotatably connected to the mounting base 600 along the length of the paper supply tray 100, so that the paper supply tray 100 can be rotated in a direction toward or away from the mounting base 600. By allowing the paper supply tray 100 to rotate in a direction away from the mounting base 600, the user can obtain a wider field of view and a larger paper picking space; after removing paper, the user rotates the paper supply tray 100 toward the mounting base 600 to return the paper supply tray 100 to its original position.

[0067] Reference Figure 11 and Figure 12It is understood that when the paper supply tray 100 rotates in a direction away from the mounting base 600, the guide rod 230 of the paper lifting tray 200 is driven to move in a direction away from the mounting base 600, and the guide rod 230 disengages from the stopper 510. At this time, the stopper 510 loses its ability to limit the guide rod 230, and the stopper assembly 500 and the guide rod 230 are in the second state. When the user lifts the paper supply tray 100 to remove paper, causing the guide rod 230 to dislocate, that is, the stopper 510 and the guide rod 230 enter the second state from the first state, the driving assembly 520 drives the stopper 510 to rotate, so that the stopper 510 rotates to the side of the guide rod 230 away from the paper supply tray 100, and the stopper 510 contacts the guide rod 230, so that the stopper 510 can be repositioned in a position to limit the guide rod 230, so that the guide rod 230 is once again controlled by the stopper 510. When the user finishes taking paper and rotates the paper supply tray 100 to the initial position, the driving component 520 drives the limit member 510 to rotate in the direction close to the paper supply tray 100, so that the limit member 510 drives the guide rod 230 to move in the direction close to the paper supply tray 100, and then the paper lifting tray 200 rotates in the direction close to the paper supply tray 100, realizing automatic resetting of the paper lifting tray 200, and restoring the guide rod 230 from the second state to the first state.

[0068] It is understood that by driving the limiter 510 to rotate through the drive assembly 520, the limiter 510 and the guide rod 230 can be automatically reset after the user lifts the paper feed tray 100 to remove paper, thereby automatically resetting the tilt angle of the paper lift tray 200. This ensures the stability and reliability of the paper feeding mechanism 10, reduces the risk of malfunction during the user's paper removal process, eliminates the need for manual reset, and improves production efficiency. At the same time, it can provide users with a better user experience.

[0069] It is understandable that the driving mechanism can be a structure of a turbine transmission motor combined with a transmission gear, or a driving structure of a motor, cylinder, etc. combined with other mechanical components. It can be selected and set according to actual application, and this application does not limit it here.

[0070] It is understandable that when the user lifts the paper supply tray 100 to take paper, the guide rod 230 disengages from the limiting member 510, and the elastic member 300 is instantly released from the compressed state. The elastic force of the elastic member 300 causes the paper lifting tray 200 to have an impact force in the direction away from the paper supply tray 100, so that the guide rod 230 has an impact force in the direction close to the limiting plate 112 of the paper supply tray 100. Because the buffer assembly 400 slows down the speed at which the paper lifting tray 200 rotates away from the paper supply tray 100, and thus slows down the speed at which the guide rod 230 moves toward the limiting plate 112, the risk of collision between the guide rod 230 and the limiting plate 112 is reduced, and the possibility of damage to the paper lifting tray 200 and the paper supply tray 100 is reduced. At the same time, the possibility of noise generated by the collision between the guide rod 230 and the limiting plate 112 is reduced, thereby improving the user experience.

[0071] Reference Figure 2 In some embodiments of the present invention, two limit members 510 may be provided, and the two limit members 510 may be spaced apart and connected by a connecting rod 530, thereby realizing synchronous rotation of the two limit members 510. The driving assembly 520 may be connected to the connecting rod 530 to drive the two limit members 510 to rotate. Correspondingly, the guide rod 230 may be passed through the paper lifting tray 200, and the two ends of the guide rod 230 may respectively protrude from the two ends of the paper lifting tray 200, and the two limit members 510 may respectively abut against the ends of the corresponding guide rods 230, so that the two ends of the guide rod 230 and the paper lifting tray 200 are evenly stressed, reducing the risk of the guide rod 230 being broken due to stress concentration, and improving the stability of the paper lifting tray 200.

[0072] An embodiment of the present invention further provides a printing device, comprising the paper feeding mechanism 10 of the above embodiment.

[0073] Since the printing device adopts all the technical solutions of the paper feeding mechanism 10 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0074] The above describes the embodiments of the present invention in detail with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A paper feeding mechanism, characterized in that: include: A paper supply tray provided with a mounting slot; A paper lifting tray is provided in the mounting slot, one end of the paper lifting tray is rotatably connected to the side wall of the mounting slot, and an elastic member is provided between the other end and the paper supply tray, and the elastic member is used to drive the paper lifting tray to rotate away from the paper supply tray; The buffer assembly includes an abutment member and a driving member connected to each other, wherein the abutment member is connected to the paper lifting tray, and the driving member is used to drive the abutment member to move toward the side wall of the mounting groove and abut against the side wall of the mounting groove to slow down the rotation of the paper lifting tray away from the paper supply tray.

2. The paper feeding mechanism according to claim 1, wherein: The paper lifting plate is provided with a mounting hole along the side wall in the width direction of the mounting slot. The mounting hole extends along the width direction of the mounting slot and is arranged opposite to the side wall of the mounting slot. The buffer assembly is installed in the mounting hole. The abutment member can move along the mounting hole and protrude from the mounting hole to abut against the side wall of the mounting slot.

3. The paper feeding mechanism according to claim 2, wherein: The driving member is a spring, and a connecting groove is provided at one end of the abutting member close to the paper lifting plate. One end of the spring is connected to the bottom wall of the mounting hole, and the other end passes through the connecting groove and is connected to the abutting member.

4. The paper feeding mechanism according to claim 2, wherein: One end of the driving member is connected to the bottom wall of the mounting hole, and the other end is connected to the abutting member. The driving member is one of a spring, a foam member and a rubber member.

5. The paper feeding mechanism according to claim 2, wherein: The paper feeding mechanism includes two buffer components, each of which includes the driving component and the abutment component. The paper lifting plate is provided with the mounting holes on the two side walls along the width direction of the mounting groove. The two buffer components are installed in the two mounting holes one by one, and the two abutment components are respectively abutted against the two side walls of the mounting groove along the width direction.

6. The paper feeding mechanism according to claim 1 or 2, characterized in that: An arc-shaped surface is provided on the end of the abutment member facing the side wall of the installation groove.

7. The paper feeding mechanism according to claim 2, characterized in that: The driving member is a spring, and the abutment member is provided with a connecting groove at one end close to the paper lifting plate. One end of the spring is connected to the bottom wall of the mounting hole, and the other end is passed through the connecting groove. The end of the abutment member facing the side wall of the mounting groove is provided with a through hole connected to the connecting groove. The buffer assembly also includes a ball and a base. The base and the ball are arranged in sequence in the connecting groove along the direction of the abutment member toward the side wall of the mounting groove. The base is connected to the spring, and the ball is passed through the through hole and protrudes from the abutment member to be connected to the side wall of the mounting groove.

8. The paper feeding mechanism according to claim 1, wherein: The mounting slot is provided with a groove on its side wall in the width direction, and the paper lifting tray is provided with a rotating shaft corresponding to the groove, the rotating shaft is passed through the groove and can rotate relative to the groove, and a guide rod is provided at the end of the paper lifting tray away from the rotating shaft, and the paper lifting tray can drive the guide rod to move back toward the paper supply tray, and the paper feeding mechanism includes a limiting assembly, and the limiting assembly includes a limiting part and a driving assembly, and the driving assembly is used to drive the limiting part to rotate and abut against the guide rod to prevent the paper lifting tray from rotating back toward the paper supply tray or push the paper lifting tray to rotate toward the paper supply tray.

9. The paper feeding mechanism according to claim 8, characterized in that: The paper feeding mechanism comprises a mounting seat, the mounting seat is located on one side of the paper feeding tray, and the driving assembly is mounted on the mounting seat.

10. A printing device, characterized in that: The invention comprises the paper feeding mechanism according to any one of claims 1 to 8.

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