Paper feeder with steel wire lifting mechanism

Abstract

The utility model relates to a paper conveying device with a steel wire lifting mechanism. The paper conveying device comprises a machine body, a paper containing tray, a limiting plate and a power assembly. The machine body comprises a bottom plate and side plates, and the side plates are arranged on the bottom plate in pairs. The paper containing tray is arranged on the bottom plate and can move along the side plates. The power assembly comprises a driving wheel, a first fixed pulley, a second fixed pulley, a first steel wire rope and a second steel wire rope. The second end of the first steel wire rope can cross the first fixed pulley to be connected with the paper containing tray, and the second end of the second steel wire rope can cross the second fixed pulley to be connected with the paper containing tray. One driving wheel is arranged on each side plate, the first steel wire rope and the second steel wire rope are arranged on the driving wheels, the two steel wire ropes are both connected to the paper containing tray, then four hanging points are formed on the paper containing tray, and the paper containing tray can be overall lifted or put down through four-point lifting; and compared with a structure with only local lifting, the device has the advantage of being large in paper containing amount.

Description

Technical Field

[0001] The utility model relates to the field of printers, in particular to a paper feeder with a steel wire lifting mechanism. Background Art

[0002] The paper feeder is a component used to store printing paper. When the printer is printing, the paper is stacked on the paper feeder. The paper feed roller is pressed on the paper under its own gravity or the action of the spring. The paper feed roller rotates to drive the paper to feed and print. Because the paper feed roller can move a limited distance under its own gravity or the action of the spring, the amount of paper stored in the printer's paper feeder is small, which requires the user of the printer to constantly add paper to the printer's paper box, which greatly reduces the printer's work efficiency due to the limited paper, affecting the user's experience. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model provides a paper feeder with a steel wire lifting mechanism, aiming to solve the technical problem that the paper feeder in the prior art stores a small number of papers and needs to add papers frequently.

[0005] (II) Technical solution

[0006] In order to solve the above problems, the utility model provides a paper feeder with a wire lifting mechanism, the paper feeder comprising: a body, a paper tray, a limit plate and a power assembly;

[0007] The machine body comprises a bottom plate and side plates, wherein the side plates are arranged on the bottom plate in pairs;

[0008] The paper tray is arranged on the bottom plate, and the paper tray is located between a pair of the side plates, the paper tray can move along the side plates, and the paper tray is used to hold paper;

[0009] The power assembly comprises a driving wheel, a first fixed pulley, a second fixed pulley, a first steel wire rope and a second steel wire rope; the driving wheel, the first fixed pulley and the second fixed pulley are rotatably arranged on the side plates, the first end of the first steel wire rope and the first end of the second steel wire rope are fixedly arranged on the driving wheel, the second end of the first steel wire rope can cross the first fixed pulley to connect to the paper tray, and the second end of the second steel wire rope can cross the second fixed pulley to connect to the paper tray;

[0010] The limiting plates are arranged in pairs on the bottom plate, the paper tray is provided with through slots for the limiting plates to pass through, the limiting plates can move on the bottom plate, and the paper is located between the pair of limiting plates.

[0011] Preferably, the paper feeder further comprises a clamping assembly, and the clamping assembly comprises: a stop block, a wrench, a slider and a rocker arm;

[0012] The stop block is fixedly arranged on the bottom plate, and a stop groove is arranged in an array on the side surface of the stop block facing the rocker arm;

[0013] The wrench is rotatably arranged on the limit plate, and a sliding groove is penetrated through the wrench;

[0014] The slider is slidably arranged on the limit plate, a sliding column is protruding from the first end of the slider, one end of the sliding column can pass through the sliding groove, and the sliding column can slide in the sliding groove, and the wrench can drive the slider to perform linear motion;

[0015] The first end of the rocker arm is hinged to the limit plate, and the second end of the rocker arm is located between the slider and the stop block. A stop protrusion is provided at the second end of the rocker arm facing the stop block. The surface of the second end of the rocker arm facing the slider includes a sliding inclined surface and a sliding straight surface connected to each other. The sliding straight surface is parallel to the side surface of the stop groove provided on the stop block, and the angle between the sliding inclined surface and the side surface of the stop groove provided on the stop block is an acute angle. The second end of the slider can move from the sliding inclined surface to the sliding straight surface so that the stop protrusion on the rocker arm is inserted into the stop groove.

[0016] Preferably, the clamping assembly also includes an elastic element, one end of the elastic element is connected to the rocker arm, and the other end of the elastic element is connected to the limit plate. When the slider is not in contact with the rocker arm, the elastic element can pull the stopping protrusion on the rocker arm out of the stopping groove.

[0017] Preferably, the elastic element is a spring.

[0018] Preferably, a guide groove is provided on the side plate along the moving direction of the paper tray, and a guide block moving along the guide groove is provided on the paper tray.

[0019] Preferably, the side plate is provided with two guide grooves, each of which is provided with a guide block, the second end of the first steel wire rope is fixedly connected to one of the two guide blocks, and the second end of the second steel wire rope is fixedly connected to the other of the two guide blocks.

[0020] Preferably, a synchronous shaft is rotatably provided on the bottom plate, and the driving wheels on the two side plates are fixedly connected to the synchronous shaft.

[0021] (III) Beneficial effects

[0022] The utility model provides a driving wheel on each side panel, and the driving wheel is provided with two steel wire ropes, namely, a first steel wire rope and a second steel wire rope, and both steel wire ropes are connected to the paper tray. There are four steel wire ropes on a pair of side panels, forming four hanging points on the paper tray. The driving wheel can be rotated to lift through four points, so that the paper tray can be lifted or lowered as a whole. Compared with the structure with only partial lifting, it has the advantage of a large amount of paper. In addition, by adjusting the relative position between a pair of limit plates, it can adapt to different specifications of paper, so that the paper feeder provided by the present application can adapt to different specifications of paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the paper feeder in this application;

[0024] Figure 2 A front view of the paper feeder in this application;

[0025] Figure 3 It is a schematic diagram of the structure of the paper feeder in this application from another perspective;

[0026] Figure 4 An exploded view of the paper feeder in this application;

[0027] Figure 5 for Figure 4 Enlarged view at A.

[0028] [Description of Reference Numerals]

[0029] 1: machine body; 11: bottom plate; 12: side plate; 13: guide groove; 14: synchronous shaft; 2: paper tray; 21: through groove; 22: guide block; 3: limit plate; 4: power assembly; 41: driving wheel; 42: first fixed pulley; 43: second fixed pulley; 44: first steel wire rope; 45: second steel wire rope; 5: clamping assembly; 51: stop block; 511: stop groove; 52: wrench; 521: sliding groove; 53: slider; 531: sliding column; 54: rocker arm; 541: stop protrusion; 542: sliding inclined surface; 543: sliding straight surface. DETAILED DESCRIPTION

[0030] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The utility model provides a paper feeder with a wire lifting mechanism, the paper feeder comprising: a body 1, a paper tray 2, a limit plate 3 and a power assembly 4. The body 1 comprises a bottom plate 11 and a side plate 12, and the side plates 12 are arranged on the bottom plate 11 in pairs. The paper tray 2 is arranged on the bottom plate 11, and the paper tray 2 is located between the pair of side plates 12, and the paper tray 2 can move along the side plates 12, and the paper tray 2 is used to hold paper.

[0035] like Figure 1 and Figure 2As shown, the power assembly 4 includes a driving wheel 41, a first fixed pulley 42, a second fixed pulley 43, a first steel wire rope 44 and a second steel wire rope 45; the driving wheel 41, the first fixed pulley 42 and the second fixed pulley 43 are rotatably arranged on the side plate 12, the first end of the first steel wire rope 44 and the first end of the second steel wire rope 45 are fixedly arranged on the driving wheel 41, the second end of the first steel wire rope 44 can cross the first fixed pulley 42 to be connected to the paper tray 2, and the second end of the second steel wire rope 45 can cross the second fixed pulley 43 to be connected to the paper tray 2; the utility model arranges a driving wheel 41 on each side plate 12, and the two steel wire ropes (the first steel wire rope 44 and the second steel wire rope 45) arranged on the driving wheel 41 are connected to the paper tray 2. There are four steel wire ropes on a pair of side panels 12, forming four hanging points on the paper tray 2. The driving wheel 41 can be rotated to lift through four points, so that the paper tray 2 can be lifted or lowered as a whole. Compared with a structure with only partial lifting, it has the advantage of a large amount of paper. In a preferred embodiment, the paper feeding rod is located above the paper tray 2. The paper tray 2 moves upward under the action of the first steel wire rope 44 and the second steel wire rope 45. After the paper on the paper tray 2 abuts against the paper feeding rod, the paper feeding rod can transport the paper into the printer.

[0036] The limiting plates 3 are arranged in pairs on the bottom plate 11, and the paper tray 2 is provided with a through groove 21 for the limiting plates 3 to pass through. The limiting plates 3 can move on the bottom plate 11, and the paper is located between a pair of limiting plates 3. By adjusting the relative positions between the pair of limiting plates 3, it is possible to adapt to papers of different specifications, so that the paper feeder provided in the present application can adapt to papers of different specifications.

[0037] In summary, the present application sets a driving wheel 41 on each side panel 12, and sets two steel wire ropes, a first steel wire rope 44 and a second steel wire rope 45, on the driving wheel 41, and both steel wire ropes are connected to the paper tray 2. There are four steel wire ropes on a pair of side panels 12, forming four hanging points on the paper tray 2. The driving wheel 41 can be rotated to lift through four points, so that the paper tray 2 can be lifted or lowered as a whole. Compared with the structure with only partial lifting, it has the advantage of a large amount of paper. In addition, by adjusting the relative position between a pair of limit plates 3, it can adapt to different specifications of paper, so that the paper feeder provided by the present application can adapt to different specifications of paper.

[0038] Furthermore, if Figure 4 and Figure 5As shown, the paper feeder also includes a clamping assembly 5, which includes: a stop block 51, a wrench 52, a slider 53 and a rocker arm 54. The stop block 51 is fixedly arranged on the bottom plate 11, and a stop groove 511 is arranged in an array on the side of the stop block 51 facing the rocker arm 54. The wrench 52 is rotatably arranged on the limit plate 3, and a sliding groove 521 is arranged through the wrench 52. The slider 53 is slidably arranged on the limit plate 3, and a sliding column 531 is protruding from the first end of the slider 53, one end of the sliding column 531 can pass through the sliding groove 521, and the sliding column 531 can slide in the sliding groove 521, and the wrench 52 can drive the slider 53 to make a linear motion. The first end of the rocker arm 54 is hinged to the limit plate 3, and the second end of the rocker arm 54 is located between the slider 53 and the stop block 51. A stop protrusion 541 is provided at the second end of the rocker arm 54 facing the side of the stop block 51. The surface of the second end of the rocker arm 54 facing the side of the slider 53 includes a sliding inclined surface 542 and a sliding straight surface 543 connected to each other. The sliding straight surface 543 is parallel to the side of the stop groove 511 provided on the stop block 51, and the angle between the sliding inclined surface 542 and the side of the stop groove 511 provided on the stop block 51 is an acute angle. The second end of the slider 53 can move from the sliding inclined surface 542 to the sliding straight surface 543 so that the stop protrusion 541 on the rocker arm 54 is inserted into the stop groove 511.

[0039] When the wrench 52 drives the slider 53 to move downward, the second section of the slider 53 first abuts against the sliding inclined surface 542 on the rocker arm 54, and the slider 53 moves along the sliding inclined surface 542 to the sliding straight surface 543. At this time, the stop protrusion 541 on the rocker arm 54 moves toward the stop groove 511. When sliding to the sliding straight surface 543, the stop protrusion 541 completely enters the stop groove 511. At this time, the rocker arm 54 and the stop block 51 on the limit plate 3 are in a stuck state, and the movement of the limit plate 3 on the bottom plate 11 is restricted, that is, the position of the limit plate 3 on the bottom plate 11 is fixed by the clamping assembly 5, and the position of the limit plate 3 fixed on the bottom plate 11 can be adjusted, so as to adapt to papers of different specifications.

[0040] Furthermore, the clamping assembly 5 further includes an elastic element (not shown), one end of which is connected to the rocker arm 54, and the other end of which is connected to the limit plate 3 (as shown in FIG. Figure 5 As shown in the figure, the connection point between the elastic element and the rocker arm 54 is point B, and the connection point between the elastic element and the limit plate 3 is point C). When the slider 53 is not in contact with the rocker arm 54, the elastic element can pull the stop protrusion 541 on the rocker arm 54 out of the stop groove 511. By arranging the elastic element on the limit plate 3, when the slider 53 is in contact with the rocker arm 54, the slider 53 is pulled by the elastic element, and the stop protrusion 541 is away from the stop groove 511, so that the limit plate 3 can move normally on the bottom plate 11. That is, in the technical solution provided by the present application, Figure 5As shown, when the limit plate 3 needs to be moved, the wrench 52 is rotated counterclockwise, and the stop protrusion 541 moves away from the stop groove 511 under the action of the elastic element; when the position of the limit plate 3 needs to be fixed, the wrench 52 is rotated clockwise so that the second end of the slider 53 moves to the sliding straight surface 543 of the rocker arm 54, and the stop protrusion 541 completely enters the stop groove 511. Through the above arrangement, the position of the limit plate 3 on the bottom plate 11 can be quickly fixed, or the limit plate 3 and the bottom plate 11 can be loosened so that the limit plate 3 can move on the bottom plate 11. In a preferred embodiment, the elastic element is a spring, and the elastic element can also be an elastic sleeve or an elastic rope.

[0041] On the other hand, a guide groove 13 is provided on the side plate 12 along the moving direction of the paper tray 2, and a guide block 22 is provided on the paper tray 2 to move along the guide groove 13. The guide groove 13 is provided on the side plate 12, and the guide block 22 matched with the guide groove 13 is provided on the paper tray 2 to guide the movement of the paper tray 2, so that the movement of the paper tray 2 is more stable.

[0042] The side plate 12 is provided with two guide grooves 13, each guide groove 13 is provided with a guide block 22, the second end of the first steel wire rope 44 is fixedly connected to one of the two guide blocks 22, and the second end of the second steel wire rope 45 is fixedly connected to the other of the two guide blocks 22. In the above scheme, the first steel wire rope 44 and the second steel wire rope 45 are respectively connected to one guide block 22, and the guide block 22 plays a guiding role in the above scheme, and also plays a role of connecting the steel wire rope and the paper tray 2.

[0043] Finally, a synchronization shaft 14 is rotatably provided on the bottom plate 11, and the driving wheels 41 on the two side plates 12 are fixedly connected to the synchronization shaft 14. In this solution, one of the driving wheels 41 on the two side plates 12 is driven by a motor, and the power for the rotation of the other driving wheel 41 is obtained through the synchronization shaft 14, so that the two driving wheels 41 rotate synchronously, and the two sides of the paper tray 2 are synchronously lifted or lowered. In addition, the two driving wheels 41 can also be driven by one motor, and in this case, the synchronization shaft 14 plays the role of synchronizing the rotation speeds of the two driving wheels 41.

[0044] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A paper feeder with a wire lifting mechanism, characterized in that: The paper feeder comprises: a body (1), a paper tray (2), a power assembly (4) and a limit plate (3); The machine body (1) comprises a bottom plate (11) and side plates (12), wherein the side plates (12) are arranged in pairs on the bottom plate (11); The paper tray (2) is arranged on the bottom plate (11), and the paper tray (2) is located between a pair of side plates (12). The paper tray (2) can move along the side plates (12), and the paper tray (2) is used to hold paper; The power assembly (4) comprises a driving wheel (41), a first fixed pulley (42), a second fixed pulley (43), a first steel wire rope (44) and a second steel wire rope (45); the driving wheel (41), the first fixed pulley (42) and the second fixed pulley (43) are rotatably arranged on the side plate (12); the first end of the first steel wire rope (44) and the first end of the second steel wire rope (45) are both fixedly arranged on the driving wheel (41); the second end of the first steel wire rope (44) can cross the first fixed pulley (42) to be connected to the paper tray (2); the second end of the second steel wire rope (45) can cross the second fixed pulley (43) to be connected to the paper tray (2); The limiting plates (3) are arranged in pairs on the bottom plate (11); the paper tray (2) is provided with a through slot (21) for the limiting plates (3) to pass through; the limiting plates (3) are movable on the bottom plate (11); and the paper is located between the pair of limiting plates (3).

2. The paper feeder with a wire lifting mechanism as claimed in claim 1, characterized in that: The paper feeder further comprises a clamping assembly (5), wherein the clamping assembly (5) comprises: a stop block (51), a wrench (52), a slide block (53) and a rocker arm (54); The stop block (51) is fixedly arranged on the bottom plate (11), and a stop groove (511) is arranged in an array on the side surface of the stop block (51) facing the rocker arm (54); The wrench (52) is rotatably arranged on the limiting plate (3), and a sliding groove (521) is arranged through the wrench (52); The slider (53) is slidably arranged on the limiting plate (3); a sliding column (531) is protruding from the first end of the slider (53); one end of the sliding column (531) can pass through the sliding groove (521), and the sliding column (531) can slide in the sliding groove (521); the wrench (52) can drive the slider (53) to perform linear motion; The first end of the rocker arm (54) is hinged to the limit plate (3), the second end of the rocker arm (54) is located between the slider (53) and the stop block (51), a stop protrusion (541) is provided on the side of the second end of the rocker arm (54) facing the stop block (51), the surface of the second end of the rocker arm (54) facing the slider (53) includes a sliding inclined surface (542) and a sliding straight surface (543) connected to each other, and the sliding The moving straight surface (543) is parallel to the side surface of the stop groove (511) provided on the stop block (51), and the angle between the sliding inclined surface (542) and the side surface of the stop groove (511) provided on the stop block (51) is an acute angle. The second end of the slider (53) can move from the sliding inclined surface (542) to the sliding straight surface (543) so that the stop protrusion (541) on the rocker arm (54) is inserted into the stop groove (511).

3. The paper feeder with a wire lifting mechanism as claimed in claim 2, characterized in that: The clamping assembly (5) also includes an elastic element, one end of which is connected to the rocker arm (54), and the other end of which is connected to the limit plate (3); when the slider (53) is not in contact with the rocker arm (54), the elastic element can pull the stop protrusion (541) on the rocker arm (54) out of the stop groove (511).

4. The paper feeder with a wire lifting mechanism as claimed in claim 3, characterized in that: The elastic element is a spring.

5. The paper feeder with a wire lifting mechanism according to any one of claims 1 to 4, characterized in that: A guide groove (13) is provided on the side plate (12) in the direction in which the paper tray (2) moves, and a guide block (22) is provided on the paper tray (2) to move along the guide groove (13).

6. The paper feeder with a wire lifting mechanism as claimed in claim 5, characterized in that: The side plate (12) is provided with two guide grooves (13), each of the guide grooves (13) is provided with a guide block (22), the second end of the first steel wire rope (44) is fixedly connected to one of the two guide blocks (22), and the second end of the second steel wire rope (45) is fixedly connected to the other of the two guide blocks (22).

7. The paper feeder with a wire lifting mechanism according to any one of claims 1 to 4, characterized in that: A synchronous shaft (14) is rotatably arranged on the bottom plate (11), and the driving wheels (41) on the two side plates (12) are fixedly connected to the synchronous shaft (14).

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