Printer capable of automatically sensing and identifying paper size and sensing and identifying method

Abstract

The invention relates to a printer capable of automatically sensing and recognizing the size of paper and a sensing and recognizing method, belongs to the technical field of printers, and solves the problems that in the prior art, an existing printer cannot recognize the size of the paper, so that the paper is wasted, and the printing effect is affected. The paper regulation device comprises a paper box frame, a first paper regulation block and a second paper regulation block, the first paper regulation block and the second paper regulation block are both arranged in the paper box frame, and the bottom of the first paper regulation block and the bottom of the second paper regulation block are both connected with a bottom plate of the paper box frame. The first paper regulation block and the second paper regulation block can synchronously move in the opposite or reverse directions so as to adapt to the size of paper to be printed. The size of the to-be-printed paper can be automatically recognized, waste of the paper in the printing process is reduced, and the printing quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to a printer capable of automatically sensing and identifying paper size and a sensing and identifying method. Background Art

[0002] Printers have become a necessity in modern office and family life, but many people often encounter paper mismatch problems during use. The general solution is to manually change the paper. In most cases, paper mismatch will cause paper waste, affect the printing effect and user experience of the printer, and add some unnecessary troubles to work and life. Summary of the invention

[0003] In view of the above analysis, the embodiments of the present invention aim to provide a printer and a sensing and identifying method capable of automatically sensing and identifying paper size, so as to solve the problem of paper waste and printing effect affected by the inability of existing printers to identify paper size.

[0004] On the one hand, the present invention provides a printer capable of automatically sensing and identifying paper size, comprising a paper box frame, a first paper regulating block and a second paper regulating block, wherein the first paper regulating block and the second paper regulating block are both arranged in the paper box frame, and the bottom of the first paper regulating block and the bottom of the second paper regulating block are both connected to the bottom plate of the paper box frame, and the first paper regulating block and the second paper regulating block can move synchronously toward or in the opposite direction to adapt to the size of the paper to be printed.

[0005] Furthermore, the bottom plate is provided with a first slide groove and a second slide groove, the bottom of the first paper regulating block is provided to slide in the first slide groove, and the bottom of the second paper regulating block is provided to slide in the second slide groove.

[0006] Furthermore, it also includes a limit regulation plate, which is arranged in the paper box frame and connected to the bottom plate.

[0007] Furthermore, a third slide groove is provided on the bottom plate, the third slide groove is perpendicular to the first slide groove, and the first slide groove is parallel to the second slide groove.

[0008] Furthermore, the bottom of the limit regulating plate slides in the third sliding groove.

[0009] Furthermore, a first rack is provided at the bottom of the first paper regulating block, a second rack is provided at the bottom of the second paper regulating block, and the first rack and the second rack are located between the first paper regulating block and the second paper regulating block.

[0010] Furthermore, a first gear is provided between the first paper regulating block and the second paper regulating block, and the first rack and the second rack are respectively meshed on both sides of the first gear.

[0011] Furthermore, it also includes a transmission mechanism, which is used to drive the limit regulating plate to move along the third sliding groove.

[0012] Furthermore, it also includes a carton lifting plate and a carton lifting mechanism.

[0013] On the other hand, the present invention provides a method for automatically sensing and identifying paper size, which uses the above-mentioned printer capable of automatically sensing and identifying paper size to sense and identify the paper size.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] (1) The first paper regulating block and the second paper regulating block of the present invention move toward or away from each other synchronously to adapt to the size of the paper. The first paper regulating block is connected to the paper sensing limb. During the movement of the first paper regulating block, the paper sensing limb is pulled to move, so that the end of the paper sensing limb blocks the sensing limb protrusion of the detection sensor. The limit regulating plate is connected to the transmission rod. The end of the transmission rod is rotatably connected to the blocking slider. During the movement of the limit regulating plate, the blocking slider is pulled to block the sensing limb protrusion of the detection sensor, so that the downward pressing position of the sensing limb protrusion will change, thereby generating different electrical signals, so as to obtain the size of the paper to be printed. At the same time, the paper storage space defined by the first paper regulating block, the second paper regulating block and the limit regulating plate can be adjusted according to the size of the paper to be printed to adapt to actual printing needs, reduce paper waste and improve printing effect.

[0016] (2) The paper detection limb of the present invention includes a connecting plate, a first connecting claw and a second connecting claw, wherein the first connecting claw is arranged at the middle edge of the connecting plate, and the second connecting claw is arranged at one end of the connecting plate. A non-linear linear slide groove is arranged on the connecting plate, and a second protrusion is arranged at one end of the first paper regulating block, and the second protrusion is arranged to slide in the linear slide groove. When the first paper regulating block moves, the second protrusion slides in the linear slide groove, thereby pulling the rotation of the paper detection limb, so that the second connecting claw moves along the first side plate to block the detection limb protrusion of the detection sensor, thereby realizing the detection of the length of the paper in a certain direction (such as the horizontal direction).

[0017] (3) The transmission rod of the present invention is provided with a first sliding groove and a second sliding groove at both ends, respectively. The first sliding groove and the second sliding groove are not connected, and the first sliding groove and the second sliding groove are not parallel. The middle part of the transmission rod is rotatably connected to the bottom plate, the first sliding groove is rotatably connected to the bottom of the limit regulating plate, and the second sliding groove is rotatably connected to the bottom of the shielding slider. The limit regulating plate moves, driving the transmission rod to deflect an angle, thereby driving the shielding slider to move along the first side plate to achieve shielding of the detection sensor protrusion, so as to detect the length of the paper in another direction (such as the longitudinal direction).

[0018] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0020] Figure 1 It is a schematic structural diagram of a paper holding component of a printer in a specific embodiment;

[0021] Figure 2 For a specific embodiment Figure 1 Explosion diagram of

[0022] Figure 3 It is a structural schematic diagram of a paper box lifting plate of a specific embodiment;

[0023] Figure 4 It is a structural schematic diagram of a paper regulating block and a lifting plate of a specific embodiment;

[0024] Figure 5 is a schematic diagram of the connection structure between the first motor and the first gear in a specific embodiment;

[0025] Figure 6 It is a schematic diagram of the connection structure between the base plate and the transmission mechanism of a specific embodiment;

[0026] Figure 7 It is a structural schematic diagram of a paper inspection limb of a specific embodiment;

[0027] Figure 8 It is a partial structural schematic diagram of a paper box lifting mechanism of a specific embodiment;

[0028] Fig. 9 FIG. 1 is a schematic diagram of the protrusion position of the detection sensor of a specific embodiment.

[0029] Reference numerals:

[0030] 100-carton frame; 101-bottom plate; 102-first slide; 103-second slide; 104-first gear; 105-first motor; 106-third slide; 107-rectangular groove; 108-first side plate; 109-first protrusion; 110-card slot; 111-second side plate; 200-first paper regulating block; 201-first rack; 202-second protrusion; 300-second paper regulating block; 301-second rack; 400-limiting regulating plate; 401-first pulley; 402-second pulley; 403-second motor; 404-belt; 500-paper inspection limb; 501-connecting plate; 502-first connecting claw ;503-second connecting claw; 504-through hole; 505-linear slide; 506-first straight groove; 507-oblique groove; 508-second straight groove; 600-transmission rod; 601-first sliding groove; 602-second sliding groove; 700-blocking slider; 800-detection sensor; 900-paper box lifting plate; 901-third connecting claw; 902-fourth connecting claw; 1000-paper box lifting mechanism; 1001-lifting roller; 1002-lifting plate; 1003-cam; 1004-mounting seat; 1005-second gear; 1006-third gear; 1007-fourth gear; 1008-rotating shaft; 1009-third motor. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0032] Example 1

[0033] A specific embodiment of the present invention, as Figure 1 and Figure 2 As shown, a printer capable of automatically sensing and identifying paper size is disclosed, comprising a paper box frame 100, a first paper regulating block 200 and a second paper regulating block 300, wherein the first paper regulating block 200 and the second paper regulating block 300 are both arranged in the paper box frame 100, the bottom of the first paper regulating block 200 and the bottom of the second paper regulating block 300 are both connected to the bottom plate 101 of the paper box frame 100, and the first paper regulating block 200 and the second paper regulating block 300 can move synchronously toward or in the opposite direction along the bottom plate 101 of the paper box frame 100 to adapt to the size of the paper. Preferably, the paper box frame 100 is a substantially rectangular parallelepiped housing without a cover.

[0034] In order to realize the first paper regulating block 200 moving along the bottom of the paper box frame 100, as shown in FIG. Figure 2As shown, a first slide groove 102 is provided on the bottom plate 101 of the paper box frame 100, and the bottom of the first paper regulating block 200 is provided to slide in the first slide groove 102. For example, a protrusion that cooperates with the first slide groove 102 is provided at the bottom of the first paper regulating block 200. In order to reduce the manufacturing cost, a structure connected to the first slide groove 102 can also be formed in the form of screws and baffles, such as a baffle (with an outer contour larger than the width of the first slide groove 102) is provided on the outside of the bottom plate 101 of the paper box frame 100, and a screw passes through the baffle, the first slide groove 102 and is connected to the bottom of the first paper regulating block 200 on the other side of the bottom plate 101.

[0035] Similarly, in order to realize the second paper regulating block 300 moving along the bottom of the paper box frame 100, as shown in FIG. Figure 2 As shown, a second slide groove 103 is provided on the bottom plate 101 of the paper box frame 100, and the bottom of the second paper regulating block 300 is provided to slide in the second slide groove 103. For example, a protrusion that cooperates with the second slide groove 103 is provided at the bottom of the second paper regulating block 300. The first slide groove 102 and the second slide groove 103 can be arranged in a collinear or non-collinear manner. When the first slide groove 102 and the second slide groove 103 are in a collinear manner, the first slide groove 102 and the second slide groove 103 are not connected; when the first slide groove 102 and the second slide groove 103 are not in a collinear manner, the two are arranged in parallel.

[0036] Considering that when adapting to the paper, the first paper regulating block 200 and the second paper regulating block 300 move synchronously toward or in opposite directions, such as Figure 2 and Figure 4 As shown, a first rack 201 is provided at the bottom of the first paper regulating block 200, and a second rack 301 is provided at the bottom of the second paper regulating block 300. The first rack 201 and the second rack 301 are located between the first paper regulating block 200 and the second paper regulating block 300. Figure 2 and Figure 5 As shown, a first gear 104 is provided on the inner side of the bottom plate 101 of the paper box frame 100, and the first gear 104 is provided between the first paper regulating block 200 and the second paper regulating block 300. A first motor 105 is provided on the outer side of the bottom plate 101 of the paper box frame 100, and the first motor 105 drives the first gear 104 to rotate, and the first rack 201 and the second rack 301 are respectively engaged on both sides of the first gear 104. For example, when the first motor 105 rotates forward, the first paper regulating block 200 and the second paper regulating block 300 move toward each other, and when the first motor 105 rotates reversely, the first paper regulating block 200 and the second paper regulating block 300 move in the opposite directions.

[0037] In this embodiment, the first paper regulating block 200 is provided with a first rack 201, and the second paper regulating block 300 is provided with a second rack 301. The first rack 201 and the second rack 301 are respectively meshed on both sides of the first gear 104, so that when any one of the paper regulating blocks is moved, the other paper regulating block moves accordingly, thereby adjusting the longitudinal width of different papers while keeping the paper always centered relative to the paper box.

[0038] When a stack of paper is placed in the paper box frame 100, the front end of the paper is limited, the left and right sides are limited by the first paper regulating block 200 and the second paper regulating block 300, and the rear end of the paper also needs to be limited. Figure 1 and Figure 2 As shown, the printer further includes a limit regulating plate 400, which is disposed in the paper box frame 100 and can move along the bottom of the paper box frame 100. The moving direction of the limit regulating plate 400 is the same as the moving direction of the first paper regulating block 200 and the second paper regulating block 300. Specifically, as Figure 2 As shown, a third slide groove 106 is provided on the bottom plate 101 of the paper box frame 100, and the third slide groove 106 is perpendicular to the first slide groove 102 and the second slide groove 103, and the lower end of the limit regulation plate 400 cooperates with the third slide groove 106. One end of the third slide groove 106 is located between the first paper regulation block 200 and the second paper regulation block 300, and the other end is away from the first paper regulation block 200 and the second paper regulation block 300.

[0039] Preferably, the limit regulating plate 400 is roughly L-shaped, and a third protrusion is provided at the bottom of the limit regulating plate 400. The third protrusion cooperates with the third slide groove 106, so that the limit regulating plate 400 moves along the third slide groove 106 to limit the rear end of the paper.

[0040] It is worth noting that in order to facilitate the installation of the limit regulation plate 400, as Figure 2 As shown, a rectangular groove 107 is provided at the end of the third slide groove 106, preferably the end is located between the first paper regulating block 200 and the second paper regulating block 300, and the width of the rectangular groove 107 is greater than the width of the third slide groove 106. The third protrusion at the bottom of the limit regulation plate 400 is inserted from the rectangular groove 107 and slides upward along the third slide groove 106, so that the limit regulation plate 400 can be installed on the paper box frame 100. It can be understood that since the paper has a certain size, the limit regulation plate 400 generally does not move to the rectangular groove 107.

[0041] The printer further includes a transmission mechanism for controlling the movement of the limit regulating plate 400, and the transmission mechanism is arranged on the outer side of the bottom of the paper box frame 100, such as Figure 6As shown, it specifically includes a first pulley 401, a second pulley 402, a second motor 403 and a belt 404. The second motor 403 is connected to the bottom plate 101 of the carton frame 100, and the first pulley 401 is installed on the output shaft of the second motor 403. The first pulley 401 is rotatably connected to the bottom plate 101 of the carton frame 100. By way of example, a connecting column is provided on the bottom plate 101, which is connected to the second pulley 402 through the connecting column. One end of the connecting column is connected to the bottom plate 101, and the second pulley 402 is rotatably installed on the other end of the connecting column. The belt 404 connects the first pulley 401 and the second pulley 402. The belt 404 is located on one side of the third slide groove 106 and is parallel to the third slide groove 106. The limit regulating plate 400 extending out from the bottom of the carton frame 100 is connected to the belt 404. Driven by the second motor 403, the limit regulating plate 400 moves along the third slide groove 106.

[0042] It should be noted that the first paper regulating block 200, the second paper regulating block 300 and the limit regulating plate 400 can also be adjusted manually. At the same time, the first motor 105 and the second motor 403 will stop rotating when encountering resistance during rotation. For example, when the first motor 105 drives the first paper regulating block 200 and the second paper regulating block 300 to move synchronously, when the first paper regulating block 200 and the second paper regulating block 300 contact the paper disposed therein and encounter resistance, the first motor 105 will stop rotating. Similarly, when the limit regulating plate 400 moves to the point where it contacts the paper and encounters resistance, the second motor 403 will stop rotating.

[0043] To identify the size of the paper, such as Figure 2 and Fig. 9 As shown, the printer also includes a paper detection limb 500, a transmission rod 600, a shielding slider 700 and a detection sensor 800. The shielding slider 700 and the detection sensor 800 are both arranged on the first side plate 108 of the paper box frame 100. The paper detection limb 500 is connected to the bottom plate 101 of the paper box frame 100 and moves under the drive of the first paper regulation block 200. The paper detection limb 500 can shield the detection sensor 800 during the movement to detect the size of the paper (such as the horizontal length). The middle part of the transmission rod 600 is rotatably connected to the bottom plate 101 of the paper box frame 100, one end of the transmission rod 600 is connected to the bottom of the limit regulation plate 400, and the other end is connected to the bottom of the shielding slider 700. The movement of the limit regulation plate 400 drives the transmission rod 600 to rotate, and then drives the shielding slider 700 to move along the first side plate 108 of the paper box frame 100. The shielding slider 700 can shield the detection sensor 800 during the movement to detect the size of the paper (such as the longitudinal length). like Fig. 9As shown, the detection sensor 800 has five detection protrusions. When the paper detection protrusions 500 and the shielding slider 700 shield the detection protrusions at different positions, the downward pressure position of the detection protrusions will change, thereby generating different electrical signals. After receiving and processing the electrical signals, the printer processor will interpret the paper size in the current paper bin, and the processor will display the paper size information on the printer display.

[0044] Specifically, Figure 7 As shown, the paper inspection limb 500 includes a connecting plate 501, a first connecting claw 502 and a second connecting claw 503. The first connecting claw 502 is arranged at the middle edge of the connecting plate 501, and the second connecting claw 503 is arranged at one end of the connecting plate 501. A through hole 504 is arranged at the other end of the connecting plate 501. A linear slide 505 is arranged on the connecting plate 501. The linear slide 505 is divided into three sections, namely a first straight groove 506, an inclined groove 507 and a second straight groove 508. The first straight groove 506 and the second straight groove 508 are arranged in parallel, and the inclined groove 507 connects the first straight groove 506 and the second straight groove 508. The first connecting claw 502 is a flat plate-like structure, and the front end of the first connecting claw 502 is inclined toward the through hole 504 side, and a limit platform is arranged at the end of the first connecting claw 502. One end of the second connecting claw 503 is vertically connected to the connecting plate 501, and the other end is clamped on the first side plate 108 and can slide on the first side plate 108. The second connecting claw 503 can block the detection protrusion of the detection sensor 800 provided on the first side plate 108 while moving along the first side plate 108.

[0045] The paper detector 500 is disposed on the inner side of the bottom plate 101. Figure 2 and Figure 7 As shown, the connecting plate 501 is rotatably connected to the first protrusion 109 on the bottom plate 101 through the through hole 504, one end of the first connecting claw 502 is clamped in the card slot 110 on the bottom plate 101, and can move in the card slot 110, and the end limit platform of the first connecting claw 502 is used to limit the first connecting claw 502 from escaping from the card slot 110, and one end of the first paper regulating block 200 is provided with a second protrusion 202, and the second protrusion 202 is set in the linear slide 505 for sliding, and the end of the first paper regulating block 200 is set below the paper inspection limb 500 for movement.

[0046] In this embodiment, a linear slide 505 is provided on the paper detection limb 500, and the linear slide 505 is a non-linear slide. One end of the paper detection limb 500 is rotatably connected to the bottom plate 101, and the other end is clamped on the first side plate 108. The second protrusion 202 at the end of the first paper regulation block 200 cooperates with the linear slide 505. When the first paper regulation block 200 moves, the second protrusion 202 slides in the linear slide 505, thereby pulling the rotation of the paper detection limb 500, so that the second connecting claw 503 moves along the first side plate 108 to block the detection limb protrusion of the detection sensor 800, thereby realizing the detection of the length of the paper in a certain direction (such as the horizontal direction).

[0047] like Figure 2 As shown, the transmission rod 600 is preferably a flat plate-like structure. The transmission rod 600 is arranged below the bottom plate 101 (i.e., outside). The two ends of the transmission rod 600 are respectively provided with a first sliding groove 601 and a second sliding groove 602. The first sliding groove 601 and the second sliding groove 602 are not connected, and the first sliding groove 601 and the second sliding groove 602 are not parallel. The middle part of the transmission rod 600 is rotatably connected to the bottom plate 101, the first sliding groove 601 is rotatably connected to the bottom of the limit regulation plate 400, and the second sliding groove 602 is rotatably connected to the bottom of the shielding slider 700. The limit regulation plate 400 moves, driving the transmission rod 600 to deflect at an angle, and then driving the shielding slider 700 to move along the first side plate 108 to achieve shielding of the detection protrusion of the detection sensor 800, so as to detect the length of the paper in another direction (such as the longitudinal direction).

[0048] Considering that the amount of paper will decrease gradually as the printing progresses, in order to ensure that the paper can be taken away smoothly by the pickup roller, Figure 2 and Figure 3 As shown, the printer further includes a paper box lifting tray 900 and a paper box lifting mechanism 1000. The paper box lifting tray 900 is disposed above the paper receiving limb 500. The paper box lifting mechanism 1000 is used to lift the paper box lifting tray 900 so that the paper placed in the paper box lifting tray 900 is lifted as the thickness decreases.

[0049] Since the paper box lifting plate 900 is arranged above the paper inspection limb 500, and the end of the first paper regulating block 200 is located below the connecting plate 501 and moves, a slot hole that cooperates with the first paper regulating block 200 and the second paper regulating block 300 is provided on the paper box lifting plate 900 to avoid interference. The rear end of the paper box lifting plate 900 is provided with a third connecting claw 901 and a fourth connecting claw 902, and the third connecting claw 901 and the fourth connecting claw 902 are respectively rotatably connected to the inner side of the first side plate 108 and the second side plate 111 of the paper box frame 100. It can be understood that a protrusion connected to the third connecting claw 901 and the fourth connecting claw 902 is provided on the inner side of the first side plate 108 and the second side plate 111.

[0050] like Figure 2 and Figure 8 As shown, the paper box lifting mechanism 1000 includes a lifting roller 1001, a lifting plate 1002 and a cam 1003. The lifting plate 1002 is arranged below the paper box lifting plate 900 and between the first paper regulating block 200 and the second paper regulating block 300. One end of the lifting roller 1001 is connected to the lifting plate 1002, and the other end passes through the first side plate 108 to connect to the cam 1003. The rotation of the cam 1003 drives the lifting roller 1001 to rotate, and then drives the lifting plate 1002 to swing, thereby lifting one end of the paper box lifting plate 900.

[0051] Furthermore, if Figure 8 As shown, the carton lifting mechanism 1000 also includes a mounting seat 1004, a second gear 1005, a third gear 1006, a fourth gear 1007, a rotating shaft 1008 and a third motor 1009. The mounting seat 1004 is connected to the outer side of the first side plate 108, the rotating shaft 1008 is vertically and rotationally connected to the mounting seat 1004, the second gear 1005 and the third gear 1006 are arranged on the rotating shaft 1008, the third motor 1009 is connected to the mounting seat 1004, the fourth gear 1007 is connected to the third motor 1009, the second gear 1005 is meshed with the fourth gear 1007, the third gear 1006 is meshed with the cam 1003, and the edge of the cam 1003 is provided with teeth. The third motor 1009 drives the fourth gear 1007 to rotate, the rotating shaft 1008 rotates, and then drives the lifting plate 1002 to swing. Preferably, the cam 1003 is 1 / 6 of the disc.

[0052] It is worth noting that the printer is also provided with a sensor for detecting the thickness of the paper. For example, it is used to detect the distance to the top side of the paper. When the detected distance is less than the set distance (the minimum distance that the pickup wheel can take the paper away), the third motor 1009 is controlled to rotate to lift the paper box lifting plate 900.

[0053] Example 2

[0054] Another specific embodiment of the present invention discloses a method for automatically sensing and identifying paper size, using the printer capable of automatically sensing and identifying paper size of embodiment 1, comprising the following steps:

[0055] Step 1: Start the printer and determine the size relationship between the paper to be printed and the paper at the end of the last print.

[0056] Specifically, after the printer is started, the current adapted paper size is displayed on the display screen, that is, the paper size when the last printing was completed (such as A4 paper), and the paper specifications on the paper package are used to determine whether the paper to be printed is suitable for the currently specified paper storage space. When the paper to be printed is inconsistent with the currently specified paper storage space, step 2 is executed; when the paper to be printed is consistent with the currently specified paper storage space, step 5 is executed. It should be noted that for the paper to be printed whose size cannot be determined, step 2 is directly executed.

[0057] Step 2: Set the limited paper storage space to the maximum.

[0058] Specifically, the first motor 105 runs (such as forward rotation), and the first rack 201 and the second rack 301 meshed with the first gear 104 drive the first paper regulating block 200 and the second paper regulating block 300 to move in the opposite direction to expand the distance between them. When the first paper regulating block 200 and the second paper regulating block 300 are moved into place, the first motor 105 stops running. The second motor 403 runs (such as forward rotation), and the belt 404 drives the limit regulating plate 400 away from the first paper regulating block 200 and the second paper regulating block 300. When the limit regulating plate 400 is moved into place, the second motor 403 stops running.

[0059] Step 3: Place the paper to be printed in the paper box lifting tray 900.

[0060] Since the paper storage space limited by the first paper regulating block 200, the second paper regulating block 300 and the limit regulating plate 400 in step 2 is the largest, any size (smaller than the maximum storage space size) of paper to be printed can be placed in it.

[0061] Step 4: The first paper regulating block 200, the second paper regulating block 300 and the limit regulating plate 400 simultaneously move closer to the paper to adapt to the size of the paper.

[0062] Specifically, the first motor 105 is running, and the first paper regulating block 200 and the second paper regulating block 300 are driven by the first gear 104 to move toward the paper synchronously. At the same time, during the movement of the first paper regulating block 200, the second protrusion 202 moves along the linear slide 505, pulling the paper detection limb 500 to deflect, and the second connecting claw 503 moves along the first side plate 108 to cover the detection limb protrusion of the detection sensor 800; the second motor 403 is running, and the transmission mechanism drives the limit regulating plate 400 to move toward the paper, synchronously driving The transmission rod 600 is deflected, and the transmission rod 600 drives the shielding slider 700 to move along the first side plate 108, shielding the detection protrusion of the detection sensor 800; the detection sensor 800 has five detection protrusions. When the paper detection protrusion 500 and the shielding slider 700 shield the detection protrusions at different positions, the downward pressure position of the detection protrusion will change, thereby generating different electrical signals. After receiving and processing the electrical signal, the printer processor will interpret the paper size in the current paper bin, and the processor will display the paper size information on the printer display.

[0063] For example, the following table shows the paper sizes corresponding to different arrangements of the five protrusions:

[0064]

[0065]

[0066] Step 5: Determine whether the paper thickness is suitable for printing.

[0067] Specifically, the sensor measures the distance from the topmost paper, compares the measured value with the set value, and when the measured value is less than the set value, lifts the paper box lifting plate 900 to the set position (the paper box lifting plate 900 will be gradually lifted as the printing paper box is lifted), otherwise, executes step 6. For lifting the paper box lifting plate 900, the third motor 1009 runs, driving the cam 1003 to rotate, and the cam 1003 drives the lifting roller 1001 to rotate, thereby driving the lifting plate 1002 to swing, so as to lift the paper box lifting plate 900.

[0068] Step 6: Execute the print job.

[0069] The pickup roller rotates, and through surface friction, it drives the paper into the machine for printing.

[0070] In this embodiment, the first paper regulating block 200 and the second paper regulating block 300 are synchronously moved closer or farther away to adapt to the size of the paper. The first paper regulating block 200 is connected to the paper sensing limb 500. During the movement of the first paper regulating block 200, the paper sensing limb 500 is pulled to move, so that the end of the paper sensing limb 500 blocks the sensing limb protrusion of the detection sensor 800. The limit regulating plate 400 is connected to the transmission rod 600, and the end of the transmission rod 600 is rotatably connected to the blocking slider 700. During the movement of the limit regulating plate 400, the blocking slider 700 is pulled to block the sensing limb protrusion of the detection sensor 800, so that the downward pressing position of the sensing limb protrusion will change, thereby generating different electrical signals, so as to obtain the size of the paper to be printed. At the same time, the paper storage space defined by the first paper regulating block, the second paper regulating block and the limit regulating plate can be adjusted according to the size of the paper to be printed to adapt to actual printing needs, reduce paper waste and improve printing effects.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A printer capable of automatically sensing and identifying paper size, characterized in that: The invention comprises a paper box frame (100), a first paper regulating block (200) and a second paper regulating block (300); the first paper regulating block (200) and the second paper regulating block (300) are both arranged in the paper box frame (100); the bottom of the first paper regulating block (200) and the bottom of the second paper regulating block (300) are both connected to a bottom plate (101) of the paper box frame (100); the first paper regulating block (200) and the second paper regulating block (300) can move synchronously towards or in opposite directions to adapt to the size of the paper to be printed.

2. The printer capable of automatically sensing and identifying paper size according to claim 1, characterized in that: The bottom plate (101) is provided with a first slide groove (102) and a second slide groove (103); the bottom of the first paper regulating block (200) is arranged to slide in the first slide groove (102); and the bottom of the second paper regulating block (300) is arranged to slide in the second slide groove (103).

3. The printer capable of automatically sensing and identifying paper size according to claim 2, characterized in that: It also includes a position limiting regulation plate (400), wherein the position limiting regulation plate (400) is arranged in the paper box frame (100), and the position limiting regulation plate (400) is connected to the bottom plate (101).

4. The printer capable of automatically sensing and identifying paper size according to claim 3, characterized in that: The bottom plate (101) is provided with a third slide groove (106), the third slide groove (106) is perpendicular to the first slide groove (102), and the first slide groove (102) and the second slide groove (103) are parallel.

5. The printer capable of automatically sensing and identifying paper size according to claim 4, characterized in that: The bottom of the limit regulating plate (400) slides in the third sliding groove (106).

6. The printer capable of automatically sensing and identifying paper size according to any one of claims 1 to 5, characterized in that: A first rack (201) is provided at the bottom of the first paper regulating block (200), and a second rack (301) is provided at the bottom of the second paper regulating block (300). The first rack (201) and the second rack (301) are located between the first paper regulating block (200) and the second paper regulating block (300).

7. The printer capable of automatically sensing and identifying paper size according to claim 6, characterized in that: A first gear (104) is provided between the first paper regulating block (200) and the second paper regulating block (300), and the first rack (201) and the second rack (301) are respectively meshed on both sides of the first gear (104).

8. The printer capable of automatically sensing and identifying paper size according to claim 4, characterized in that: It also includes a transmission mechanism, which is used to drive the limit regulating plate (400) to move along the third sliding groove (106).

9. The printer capable of automatically sensing and identifying paper size according to any one of claims 1-5, 7-8, characterized in that: It also includes a carton lifting plate (900) and a carton lifting mechanism (1000).

10. A paper size automatic sensing and recognition method, characterized in that: The printer capable of automatically sensing and identifying the paper size as described in any one of claims 1 to 9 is used to sense and identify the paper to be printed.

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