Printer paper feeder

Abstract

The utility model provides a paper feeder of a printer. The paper feeder comprises a box body, two groups of sliding assemblies, a connecting rod, a paper feeding assembly and a driving assembly, the sliding assembly comprises a fixing plate, a sliding block, a sliding bearing and a swing rod. The fixing plate is provided with a first sliding groove and a second sliding groove which are arranged in the transverse direction, the first sliding groove extends in the transverse direction, the second sliding groove comprises a vertical section and a transverse section, one end of the transverse section is connected with one end of the vertical section, and the other end of the transverse section extends in the direction away from the first sliding groove. The sliding block is slidably arranged in the first sliding groove. The sliding bearing is slidably arranged in the second sliding groove. The two ends of the swing rod are the first end and the second end, the swing rod is in a two-section bent shape, the bent position of the swing rod is rotationally connected with the sliding block, and the second end is connected with the sliding bearing. The two ends of the connecting rod are connected with the second ends of the two swing rods respectively. The paper feeding assembly is connected to the connecting rod. According to the paper feeder of the printer, the two paper feeding rubber wheels of the printer can keep away from the edge of a plurality of layers of paper, and rubber pages of the plurality of layers of paper cannot be torn open.

Description

Technical Field

[0001] The utility model relates to the technical field of paper feeders, in particular to a printer paper feeder. Background Art

[0002] Multi-layer paper refers to two or more layers of paper, one with an adhesive backing bonded to a second, oily backing. Adhesive paper needs to be removed after printing, such as the visa page in a passport. The printer's paper feeder can feed multi-layer paper into the printer.

[0003] The conventional paper feeder of a printer generally feeds paper into the printer via a rubber wheel. The disadvantage of this paper feeding method is that when the rubber wheel rolls through the joints of multiple layers of paper, the rubber sheets of the multiple layers of paper may be torn apart by the rubber wheel due to the friction feeding principle of the rubber wheel, causing the rubber sheets to stick to the rubber wheel, thereby causing paper feeding failure.

[0004] Therefore, it is necessary to provide a printer paper feeder to solve the above technical problems. Utility Model Content

[0005] The utility model provides a printer paper feeder, which can enable two paper feeding rubber wheels of the printer to avoid the edges of multi-layer paper and prevent the glued pages of the multi-layer paper from being torn apart, thereby ensuring that the printer can print normally and improving the working efficiency of the printer.

[0006] The technical solution of the utility model is:

[0007] A printer paper feeder, comprising:

[0008] A box body for placing multiple layers of paper, wherein the top of the box body is provided with an opening, and the box body is surrounded by two parallel first side panels and two parallel second side panels, wherein the two first side panels are arranged in a transverse direction, and the two second side panels are arranged in a longitudinal direction;

[0009] Two groups of sliding assemblies, the sliding assemblies include a fixed plate, a slider, a sliding bearing and a rocker arm; the two fixed plates are respectively arranged on the inner sides of the two second side plates, the fixed plates are provided with a first slide groove and a second slide groove, the two are arranged in a transverse direction, the first slide groove extends in the transverse direction, the second slide groove includes a vertical section and a transverse section, the vertical section extends vertically, the transverse section extends in the transverse direction, one end of the transverse section is connected to an end of the vertical section close to the opening, and the other end extends in a direction away from the first slide groove; the slider is slidably arranged in the first slide groove; the sliding bearing is slidably arranged in the second slide groove; the two ends of the rocker arm are a first end and a second end, the rocker arm is bent in two sections, the first end is located below the bending part of the rocker arm, the bending part of the rocker arm is rotatably connected to the slider, and the second end is connected to the sliding bearing;

[0010] a connecting rod, the two ends of which are respectively connected to the second ends of the two rocker arms;

[0011] a paper feeding assembly connected to the connecting rod, the paper feeding assembly being used to absorb and feed multiple layers of paper; and

[0012] A driving assembly is connected to the first end and is used to drive the first end to rotate and translate laterally, so that the sliding bearing reciprocates in the second sliding groove, thereby causing the paper feeding assembly to rise, advance and reset.

[0013] In the printer paper feeder of the present invention, the vertical section is arc-shaped, and the corresponding center of the circle is located at the rotation axis of the slider and the rocker arm.

[0014] In the printer paper feeder of the present invention, the connection between the vertical section and the horizontal section is arc-shaped.

[0015] In the printer paper feeder described in the present invention, the paper feeding assembly includes a connecting plate, a movable plate and a torsion spring; one end of the connecting plate is connected to the connecting rod, one end of the movable plate is rotatably connected to the other end of the connecting plate, and the torsion spring is connected between the other end of the connecting plate and one end of the movable plate to provide elastic force so that the other end of the movable plate is tilted upward, and a vacuum suction cup is provided on the bottom surface of the movable plate.

[0016] In the printer paper feeder described in the present invention, the printer paper feeder is also provided with a baffle, which is arranged above the movable plate. When the sliding bearing is located in the transverse section and the paper feeding assembly is located in a high position, the baffle abuts against the other end of the movable plate to cause it to rotate downward.

[0017] In the printer paper feeder described in the present invention, the driving assembly includes a motor, a rotating shaft, a transmission assembly and two groups of linkage assemblies; the rotating shaft is arranged in the longitudinal direction and is rotatably connected to the box body, and the motor is connected to the rotating shaft through the transmission assembly so that the rotating shaft rotates around its own axis; the linkage assembly includes a movable rod and a swing block, one end of the two swing blocks is respectively fixedly connected to the two ends of the rotating shaft, the other end of the two swing blocks is respectively rotatably connected to one end of the two movable rods, and the other end of the two movable rods is respectively rotatably connected to the first end of the two swing rods.

[0018] In the printer paper feeder described in the present invention, the transmission assembly includes a first gear and a second gear, which are meshed and connected. The first gear is connected to the motor, and the second gear is fixedly sleeved on the rotating shaft. The motor is located on a lateral side of the rotating shaft.

[0019] In the printer paper feeder described in the present invention, the box body is also provided with two limit plates, the two limit plates are located between the two groups of sliding components, and the two limit plates are arranged longitudinally and parallel to each other, and the two limit plates are used to limit the longitudinal sides of the multi-layer paper.

[0020] In the printer paper feeder of the present invention, the box body is further provided with a limiting member, which is located between the two first side plates and is used to limit one lateral end of the multi-layer paper.

[0021] In the printer paper feeder described in the present invention, the limiting part includes a connecting bar and a limiting bar that are perpendicular to each other. The limiting bar is arranged vertically, and the connecting bar is arranged horizontally. The connecting bar is provided with a long hole extending horizontally for screws to pass through and connect to the bottom of the box.

[0022] Compared with the prior art, the present invention has the following advantages: In the initial state of the printer paper feeder of the present invention, the sliding bearing is located at a lower position in the vertical section, and the paper feed assembly is also located at a lower position and away from the printer. The printer's built-in lifting plate raises the multi-layer paper, and the paper feed assembly sucks up the top sheet of multi-layer paper. Then, the driving assembly drives the first end toward the second chute, and the swing arm rotates, causing the second end to move upward along the vertical section and drive the connecting rod and the paper feed assembly to rise. When the sliding bearing moves into the transverse section, the driving assembly continues to drive the first end toward the second chute, causing the slider to move laterally along the first chute, thereby causing the second end of the swing arm to move laterally along the transverse section, and the connecting rod drives the paper feed assembly toward the printer. The printer's two paper feed rollers first open, and the paper feed assembly feeds the multi-layer paper between the two paper feed rollers, with the edge of the multi-layer paper crossing the two paper feed rollers. Then, the two paper feed rollers close, clamping the multi-layer paper. The two paper feed rollers roll up, and the multi-layer paper is delivered to the printing position. After a sheet of multi-layer paper is conveyed, the multi-layer paper drive assembly drives the first end to move away from the second chute, causing the slider to move in the opposite direction along the first chute, thereby causing the second end of the swing arm to move in the opposite direction along the horizontal section. The connecting rod then drives the paper feed assembly away from the printer. When the sliding bearing moves into the vertical section, the drive assembly continues to drive the first end away from the second chute, causing the slider to stop moving in the first chute. The swing arm rotates in the opposite direction, causing the second end of the swing arm to move downward along the vertical section. The connecting rod then drives the paper feed assembly toward the multi-layer paper and picks up the next sheet of multi-layer paper, repeating the aforementioned actions. The printer paper feeder of the present invention, through the cooperation of two sets of sliding assemblies, the connecting rod, and the paper feed assembly, can pick up multi-layer paper and convey it forward to the printer. This allows the printer's two paper feed rollers to avoid the edges of the multi-layer paper and prevent the adhesive sheets of the multi-layer paper from being torn apart, ensuring normal printing and improving the printer's operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of a printer paper feeder provided in a preferred embodiment of the present utility model.

[0025] Figure 2 This is a schematic structural diagram of a sliding assembly of a printer paper feeder provided in a preferred embodiment of the present utility model.

[0026] Figure 3 This is a schematic structural diagram of a fixing plate of a printer paper feeder provided in a preferred embodiment of the present utility model.

[0027] Figure 4 This is a schematic structural diagram of the second chute of the printer paper feeder provided in a preferred embodiment of the present utility model.

[0028] Figure 5 This is a structural schematic diagram of the paper feeding assembly of the printer paper feeder provided in the preferred embodiment of the present utility model.

[0029] Figure 6 This is a schematic structural diagram of a drive assembly for a printer paper feeder provided in a preferred embodiment of the present invention.

[0030] in,

[0031] 11. Box body, 111. Opening, 112. First side panel, 113. Second side panel, 114. Limiting plate, 115. Limiting member, 1151. Connecting strip, 1152. Limiting strip,

[0032] 12. Sliding components,

[0033] 121, fixed plate, 1211, first chute, 1212, second chute, 12121, vertical section, 12122, horizontal section,

[0034] 122. Slider,

[0035] 123. Sliding bearings,

[0036] 124, pendulum, 1241, first end, 1242, second end,

[0037] 13. Connecting rod,

[0038] 14. Paper feeding assembly, 141. Connecting plate, 142. Movable plate, 1421. Vacuum suction cup, 143. Torsion spring,

[0039] 15. Driving assembly, 151. Motor, 152. Rotating shaft, 153. Transmission assembly, 1531. First gear, 1532. Second gear, 154. Linkage assembly, 1541. Movable rod, 1542. Swing block,

[0040] 16. Baffle.

[0041] In the figures, structurally similar elements are denoted by the same reference numerals. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0043] Directional terms mentioned in this invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the invention, and are not intended to limit the invention.

[0044] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] The conventional paper feeder of a printer generally feeds paper into the printer via a rubber wheel. The disadvantage of this paper feeding method is that when the rubber wheel rolls through the joints of multiple layers of paper, the rubber sheets of the multiple layers of paper may be torn apart by the rubber wheel due to the friction feeding principle of the rubber wheel, causing the rubber sheets to stick to the rubber wheel, thereby causing paper feeding failure.

[0047] The following is a preferred embodiment of a printer paper feeder provided by the present invention that can solve the above technical problems.

[0048] Please refer to Figure 1 The preferred embodiment of the present invention provides a printer paper feeder, which includes a housing 11, two sets of sliding assemblies 12, a connecting rod 13, a paper feed assembly 14, and a driving assembly 15. The housing 11 is used to hold multiple layers of paper. The top of the housing 11 is provided with an opening 111. The four sides of the housing 11 include two parallel first side panels 112 and two parallel second side panels 113. The two first side panels 112 are arranged in the horizontal direction, and the two second side panels 113 are arranged in the longitudinal direction.

[0049] Please refer to Figure 2 and Figure 3 The sliding assembly 12 includes a fixed plate 121, a slider 122, a sliding bearing 123, and a rocker arm 124. The two fixed plates 121 are respectively disposed on the inner sides of the two second side plates 113. The fixed plates 121 are provided with a first slide groove 1211 and a second slide groove 1212, both of which are arranged in a transverse direction. The first slide groove 1211 extends transversely, and the second slide groove 1212 includes a vertical section 12121 and a transverse section 12122. The vertical section 12121 extends vertically, while the transverse section 12122 extends transversely. One end of the transverse section 12122 is connected to the end of the vertical section 12121 near the opening 111, and the other end extends away from the first slide groove 1211. The slider 122 is slidably disposed in the first slide groove 1211. The sliding bearing 123 is slidably disposed in the second slide groove 1212. The two ends of the rocker arm 124 are a first end 1241 and a second end 1242 . The rocker arm 124 is bent in two sections. The first end 1241 is located below the bending part of the rocker arm 124 . The bending part of the rocker arm 124 is rotatably connected to the slider 122 , and the second end 1242 is connected to the sliding bearing 123 .

[0050] Please refer to Figure 1 and Figure 2 The two ends of the connecting rod 13 are respectively connected to the second ends 1242 of the two rocker arms 124. The paper feeding assembly 14 is connected to the connecting rod 13, and the paper feeding assembly 14 is used to absorb and transport multiple layers of paper.

[0051] Please refer to Figure 1 and Figure 2 The driving assembly 15 is connected to the first end 1241 and is used to drive the first end 1241 to rotate and translate laterally, so that the sliding bearing 123 reciprocates in the second slide groove 1212, thereby causing the paper feeding assembly 14 to rise, advance and reset.

[0052] In the printer paper feeder of the present invention, in the initial state, the sliding bearing 123 is located at the lower position of the vertical section 12121, and the paper feeding assembly 14 is also located at the lower position and away from the printer. The lifting board provided by the printer raises the multi-layer paper, and the paper feeding assembly 14 sucks up the multi-layer paper at the top, and then the driving assembly 15 drives the first end 1241 to move in the direction close to the second slide groove 1212, and the rocker arm 124 rotates to make the second end 1242 move upward along the vertical section 12121 and drive the connecting rod 13 and the paper feeding assembly 14 to rise. When the sliding bearing 123 moves into the transverse section 12122, the driving assembly 15 continues to drive the first end 1241 to move in the direction close to the second slide groove 1212, which can make the slider 122 move laterally along the first slide groove 1211, and then make the second end 1242 of the rocker arm 124 move laterally along the transverse section 12122, and the connecting rod 13 drives the paper feeding assembly 14 to move in the direction close to the printer. The two paper feed rollers of the printer are first opened, and the paper feeding assembly 14 feeds the multi-layer paper between the two paper feed rollers, and the edges of the multi-layer paper cross the two paper feed rollers. Then the two paper feed rollers are closed and clamp the multi-layer paper. The two paper feed rollers are rolled to deliver the multi-layer paper to the printing position. After completing the conveying of a piece of multi-layer paper, the multi-layer paper driving assembly 15 drives the first end 1241 to move in the direction away from the second slide groove 1212, which can make the slider 122 move in the opposite direction along the first slide groove 1211, and then make the second end 1242 of the rocker arm 124 move in the opposite direction along the horizontal section 12122, and the connecting rod 13 drives the paper feeding assembly 14 to move in the direction away from the printer. When the sliding bearing 123 moves into the vertical section 12121, the driving assembly 15 continues to drive the first end 1241 to move in the direction away from the second slide groove 1212, the slider 122 stops moving in the first slide groove 1211, and the rocker arm 124 rotates in the opposite direction, so that the second end 1242 of the rocker arm 124 moves downward along the vertical section 12121, and the connecting rod 13 drives the paper feeding assembly 14 to move in the direction close to the multi-layer paper and suck up the next piece of multi-layer paper, and repeat the above actions. The printer paper feeder of the present invention can suck up multiple layers of paper and feed them forward to the printer through the cooperation of two sets of sliding components 12, connecting rods 13 and paper feeding components 14, so that the two paper feeding rubber wheels of the printer can avoid the edges of the multiple layers of paper and will not tear the glued sheets of the multiple layers of paper apart, thereby ensuring that the printer can print normally and improving the working efficiency of the printer.

[0053] Please refer to Figure 2 and Figure 4The vertical section 12121 is arc-shaped, with its center located at the pivot point between the slider 122 and the rocker arm 124. When a multi-layer paper is placed, one end of the paper rests against the inner surface of the first side panel 112, which is closest to the printer. The vertical section 12121 is arc-shaped and curves away from the printer. After the paper feed assembly 14 picks up the multi-layer paper, it can move slightly away from the printer to prevent the end of the multi-layer paper near the printer from scraping against the first side panel 112.

[0054] Please refer to Figure 4 The connection between the vertical section 12121 and the horizontal section 12122 is arc-shaped. With this structure, the sliding bearing 123 can slide smoothly at the connection between the vertical section 12121 and the horizontal section 12122.

[0055] Please refer to Figure 1 and Figure 5 The paper feeding assembly 14 includes a connecting plate 141, a movable plate 142, and a torsion spring 143. One end of the connecting plate 141 is connected to the connecting rod 13, and one end of the movable plate 142 is rotatably connected to the other end of the connecting plate 141. The torsion spring 143 is connected between the other end of the connecting plate 141 and one end of the movable plate 142, providing an elastic force that causes the other end of the movable plate 142 to tilt upward. The bottom surface of the movable plate 142 is provided with a vacuum suction cup 1421. Due to the action of the torsion spring 143, the movable plate 142 is normally tilted upward, and its tilt angle is greater than the tilt angle of multi-layer paper. When the movable plate 142 moves downward and contacts the multi-layer paper, the multi-layer paper can force the movable plate 142 to rotate downward by a certain angle, so that the movable plate 142 and the multi-layer paper are flush, thereby facilitating the suction of a piece of multi-layer paper by the vacuum suction cup 1421.

[0056] Please refer to Figure 1 The printer's paper feeder also features a baffle 16, positioned above the movable plate 142. When the sliding bearing 123 is located within the transverse section 12122 and the paper feed assembly 14 is in the upper position, baffle 16 abuts against the other end of the movable plate 142, causing it to pivot downward. After the movable plate 142 picks up a sheet of multi-layered paper and rises, it returns to its upwardly tilted position. Baffle 16 forces the end of the movable plate 142, away from the connecting plate 141, to pivot downward a certain angle, nearly horizontally. This allows the multi-layered paper to be transported in a nearly horizontal position, making it easier for the printer's paper feed roller to receive the multi-layered paper.

[0057] Please refer to Figure 6The drive assembly 15 includes a motor 151, a rotating shaft 152, a transmission assembly 153, and two linkage assemblies 154. The rotating shaft 152 is longitudinally arranged and rotatably connected to the housing 11. The motor 151 is connected to the rotating shaft 152 via the transmission assembly 153, allowing the rotating shaft 152 to rotate about its own axis. The linkage assembly 154 includes a movable rod 1541 and a swing block 1542. One end of the two swing blocks 1542 is fixedly connected to the ends of the rotating shaft 152, and the other ends of the two swing blocks 1542 are rotatably connected to one end of the two movable rods 1541. The other ends of the two movable rods 1541 are rotatably connected to the first ends 1241 of the two rocker arms 124. When the motor 151 rotates, it drives the rotating shaft 152 to rotate about its own axis through the transmission assembly 153, thereby driving the swing blocks 1542 to rotate about the rotating shaft 152, and further driving the movable rods 1541 to rotate, causing the rocker arms 124 to rotate and move laterally. Through the above structure, the rocker rod 124 can move smoothly, and only one motor 151 is provided to drive the two rocker rods 124 to move synchronously.

[0058] Please refer to Figure 6 Transmission assembly 153 includes a first gear 1531 and a second gear 1532, which are meshed and connected. First gear 1531 is connected to motor 151, and second gear 1532 is fixedly mounted on rotating shaft 152. Motor 151 is located on one side of rotating shaft 152. Connecting motor 151 and rotating shaft 152 via first gear 1531 and second gear 1532 ensures stable rotation of rotating shaft 152. Furthermore, positioning motor 151 on one side of rotating shaft 152 can reduce the longitudinal dimension of the printer's paper feeder.

[0059] Please refer to Figure 1 The box 11 is also equipped with two limiting plates 114. These plates are located between the two sets of sliding assemblies 12 and are arranged longitudinally and parallel to each other. These plates 114 are used to limit the longitudinal position of the multi-layer paper. Placing the multi-layer paper between the two limiting plates 114 effectively prevents the paper from shifting longitudinally.

[0060] Please continue to refer to Figure 1 The box 11 is further provided with a limiter 115, which is located between the two first side panels 112 and is used to limit the horizontal end of the multi-layer paper. One end of the multi-layer paper abuts against the first side panel 112 near the printer, and the other end can be limited by the limiter 115.

[0061] Please continue to refer to Figure 1The limiting member 115 includes a connecting bar 1151 and a limiting bar 1152, which are perpendicular to each other. The limiting bar 1152 is arranged vertically, and the connecting bar 1151 is arranged horizontally. The connecting bar 1151 is provided with a horizontally extending elongated hole for screws to pass through and connect to the bottom of the box body 11. A certain gap must be maintained between the limiting member 115 and the multi-layer paper, which should not be too large or too small. If the gap between the limiting member 115 and the multi-layer paper is too large, the limiting member 115 will not function as a limiter. If the gap between the limiting member 115 and the multi-layer paper is too small, when the movable plate 142 sucks up the multi-layer paper and moves it upward, it will move slightly away from the printer, and the limiting member 115 will interfere with the movement of the multi-layer paper. With this structure, when placing multi-layer paper of different lengths, the position of the connecting bar 1151 can be flexibly adjusted to ensure that the screw is positioned appropriately in the elongated hole, thereby maintaining an appropriate gap between the limiting member 1152 and the multi-layer paper.

[0062] The working process of the printer paper feeder of the preferred embodiment of the utility model is as follows:

[0063] In the initial state, the sliding bearing 123 is located at a lower position of the vertical section 12121, and the paper feeding assembly 14 is also located at a lower position and away from the printer. The lifting board provided by the printer raises the multi-layer paper, and the multi-layer paper can force the movable plate 142 to rotate downward by a certain angle, so that the movable plate 142 and the multi-layer paper are flat. The vacuum suction cup 1421 sucks up the top multi-layer paper; then, the motor 151 rotates, driving the first gear 1531, the second gear 1532, the swing block 1542, and the movable rod 1541 to rotate, thereby driving the first end 1241 As the slide moves toward the second chute 1212, the rocker arm 124 rotates, causing the second end 1242 to move upward along the vertical section 12121, raising the connecting rod 13 and the paper feed assembly 14. Once the sliding bearing 123 moves into the transverse section 12122, the first end 1241 moves toward the second chute 1212, causing the slider 122 to move laterally along the first chute 1211. This, in turn, causes the second end 1242 of the rocker arm 124 to move laterally along the transverse section 12122, and the connecting rod 13 drives the paper feed assembly 14 toward the printer. The printer's two paper feed rollers first open, and the paper feed assembly 14 feeds multiple layers of paper between them, with the edges of the paper passing over them. The two paper feed rollers then close, clamping the multiple layers of paper. The two paper feed rollers wind the paper, delivering the multiple layers of paper to the printing position.

[0064] When the sliding bearing 123 is located in the transverse section 12122 and the paper feed assembly 14 is in the high position, the baffle 16 abuts the other end of the movable plate 142, causing it to rotate downward. When the movable plate 142 lifts up a sheet of multi-layered paper, it returns to its upward tilted position. The baffle 16 forces the movable plate 142 to rotate downward a certain angle, nearly horizontally. This allows the multi-layered paper to be transported in a nearly horizontal position, making it easier for the printer's paper feed roller to receive the multi-layered paper.

[0065] After completing the feeding of a piece of multi-layer paper, the motor 151 continues to rotate, driving the first gear 1531, the second gear 1532, the swing block 1542, and the movable rod 1541 to continue to rotate, thereby driving the first end 1241 to move in the direction away from the second slide groove 1212, which can make the slider 122 move in the opposite direction along the first slide groove 1211, and then make the second end 1242 of the rocker arm 124 move in the opposite direction along the horizontal section 12122, and the connecting rod 13 drives the paper feeding assembly 14 to move in the direction away from the printer. When the sliding bearing 123 moves to the vertical section 12121, the driving assembly 15 continues to drive the first end 1241 to move in the direction away from the second slide groove 1212, the slider 122 stops moving in the first slide groove 1211, and the rocker arm 124 rotates in the opposite direction, thereby making the second end 1242 of the rocker arm 124 move downward along the vertical section 12121, and the connecting rod 13 drives the paper feeding assembly 14 to move in the direction close to the multi-layer paper and suck up the next piece of multi-layer paper, and repeat the above actions.

[0066] This completes the working process of the printer paper feeder of this preferred embodiment.

[0067] In the present invention, the paper feeder of a printer, in its initial state, has the sliding bearing located at a lower position in the vertical section, and the paper feed assembly is also located at a lower position and away from the printer. The printer's built-in lifting plate raises the multi-layer paper, and the paper feed assembly picks up the top sheet of multi-layer paper. The drive assembly then drives the first end toward the second chute, causing the swing arm to rotate, causing the second end to move upward along the vertical section and drive the connecting rod and paper feed assembly to rise. After the sliding bearing moves into the transverse section, the drive assembly continues to drive the first end toward the second chute, causing the slider to move laterally along the first chute, further causing the second end of the swing arm to move laterally along the transverse section, and the connecting rod drives the paper feed assembly toward the printer. The printer's two paper feed rollers first open, and the paper feed assembly feeds the multi-layer paper between them, with the edge of the multi-layer paper crossing the two rollers. The two rollers then close, clamping the multi-layer paper. The two rollers wind the multi-layer paper to the printing position. After a sheet of multi-layer paper is conveyed, the multi-layer paper drive assembly drives the first end to move away from the second chute, causing the slider to move in the opposite direction along the first chute, thereby causing the second end of the swing arm to move in the opposite direction along the horizontal section. The connecting rod then drives the paper feed assembly away from the printer. When the sliding bearing moves into the vertical section, the drive assembly continues to drive the first end away from the second chute, causing the slider to stop moving in the first chute. The swing arm rotates in the opposite direction, causing the second end of the swing arm to move downward along the vertical section. The connecting rod then drives the paper feed assembly toward the multi-layer paper and picks up the next sheet of multi-layer paper, repeating the aforementioned actions. The printer paper feeder of the present invention, through the cooperation of two sets of sliding assemblies, the connecting rod, and the paper feed assembly, can pick up multi-layer paper and convey it forward to the printer. This allows the printer's two paper feed rollers to avoid the edges of the multi-layer paper and prevent the adhesive sheets of the multi-layer paper from being torn apart, ensuring normal printing and improving the printer's operating efficiency.

[0068] To sum up, although the present invention has been disclosed as above in terms of preferred embodiments, the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent substitutions or changes based on the concept of the technical solution of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A printer paper feeder, characterized in that: include: A box body, which is used to place multiple layers of paper, wherein the top of the box body is provided with an opening, and the periphery of the box body includes two parallel first side panels and two parallel second side panels, wherein the two first side panels are arranged in a transverse direction, and the two second side panels are arranged in a longitudinal direction; Two groups of sliding components, the sliding components include a fixed plate, a slider, a sliding bearing and a swing rod; the two fixed plates are respectively arranged on the inner sides of the two second side plates, the fixed plate is provided with a first slide groove and a second slide groove, the two are arranged in the transverse direction, the first slide groove extends in the transverse direction, the second slide groove includes a vertical section and a transverse section, the vertical section extends in the vertical direction, the transverse section extends in the transverse direction, one end of the transverse section is connected to one end of the vertical section close to the opening, and the other end extends in a direction away from the first slide groove; the slider is slidably arranged in the first slide groove; the sliding bearing is slidably arranged in the second slide groove; the two ends of the swing rod are a first end and a second end, the swing rod is in a two-section bending shape, the first end is located below the bending part of the swing rod, the bending part of the swing rod is rotatably connected to the slider, and the second end is connected to the sliding bearing; A connecting rod, two ends of which are respectively connected to the second ends of the two swing rods; a paper feeding assembly connected to the connecting rod, the paper feeding assembly being used for absorbing and conveying multiple layers of paper; and, A driving assembly is connected to the first end and is used to drive the first end to rotate and translate laterally, so that the sliding bearing reciprocates in the second slide groove, thereby causing the paper feeding assembly to rise, move forward and reset.

2. The printer paper feeder according to claim 1, characterized in that: The vertical section is arc-shaped, and the corresponding center of the vertical section is located at the rotation axis of the slider and the rocker rod.

3. The printer paper feeder according to claim 2, characterized in that: The connection between the vertical section and the horizontal section is arc-shaped.

4. The printer paper feeder according to claim 1, characterized in that: The paper feeding assembly includes a connecting plate, a movable plate and a torsion spring; one end of the connecting plate is connected to the connecting rod, one end of the movable plate is rotatably connected to the other end of the connecting plate, the torsion spring is connected between the other end of the connecting plate and one end of the movable plate to provide elastic force to make the other end of the movable plate tilt upward, and a vacuum suction cup is provided on the bottom surface of the movable plate.

5. The printer paper feeder according to claim 4, characterized in that: The printer paper feeder is also provided with a baffle, which is arranged above the movable plate. When the sliding bearing is located in the transverse section and the paper feeding assembly is located in a high position, the baffle abuts against the other end of the movable plate to make it rotate downward.

6. The printer paper feeder according to claim 1, characterized in that: The driving assembly includes a motor, a rotating shaft, a transmission assembly and two groups of linkage assemblies; the rotating shaft is arranged in the longitudinal direction and is rotatably connected to the box body, and the motor is connected to the rotating shaft through the transmission assembly so that the rotating shaft rotates around its own axis; the linkage assembly includes a movable rod and a swing block, one end of the two swing blocks are respectively fixedly connected to the two ends of the rotating shaft, the other ends of the two swing blocks are respectively rotatably connected to one end of the two movable rods, and the other ends of the two movable rods are respectively rotatably connected to the first ends of the two swing rods.

7. The printer paper feeder according to claim 6, characterized in that: The transmission assembly includes a first gear and a second gear, which are meshed and connected. The first gear is connected to the motor, and the second gear is fixedly sleeved on the rotating shaft. The motor is located on a lateral side of the rotating shaft.

8. The printer paper feeder according to any one of claims 1 to 7, characterized in that: The box body is also provided with two limit plates, which are located between the two groups of sliding components, and are arranged longitudinally and parallel to each other. The two limit plates are used to limit the longitudinal sides of the multi-layer paper.

9. The printer paper feeder according to claim 8, characterized in that: The box body is further provided with a limiting member, which is located between the two first side plates and is used to limit a lateral end of the multi-layer paper.

10. The printer paper feeder according to claim 9, characterized in that: The limiting member includes a connecting strip and a limiting strip which are perpendicular to each other. The limiting strip is arranged vertically, and the connecting strip is arranged horizontally. The connecting strip is provided with a long strip hole extending horizontally for screws to pass through and connect with the bottom of the box.

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