Novel paper limiter structure and printer thereof

Abstract

According to the technical scheme, the novel paper limiter structure is characterized by comprising a mounting shaft, a limiting plate is fixed to one end of the mounting shaft, an adjusting plate is movably arranged at the other end of the mounting shaft, an inserting plate is arranged at one end of the mounting shaft and extends in the length direction of the mounting shaft, and a through hole is formed in the adjusting plate; the inserting plate penetrates through the through hole to enable the adjusting plate to move along the inserting plate, and a fixing assembly used for fixing the adjusting plate is arranged between the inserting plate and the adjusting plate. According to the paper limiting device, the adjusting plate which is movably arranged is in axial sliding fit with the inserting plate, and the adjusting plate is relatively fixed through the fixing assembly after moving, so that the total length of the paper limiting device is adjusted, the paper limiting device can be accurately matched with paper rolls of different sizes, and the applicability of the paper limiting device is improved.

Description

A novel paper limiter structure and its printer Technical Field

[0001] This utility model relates to the field of printer technology, and more specifically to a novel paper limiter structure and its printer. Background Technology

[0002] The printer is equipped with a paper limiter structure, the core function of which is to fix the paper roll axially through the limiting plates on both sides, preventing the paper from shifting laterally during unwinding, thereby ensuring the accuracy of the printing media delivery path.

[0003] However, the existing paper limiter structure has a fixed length and can only match standard paper rolls of a specific axial length. When users change to paper rolls of different sizes, the ends of the paper roll may be suspended or excessively squeezed, leading to an increase in paper jam rate and poor adaptability. Summary of the Invention

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A novel paper limiter structure includes a mounting shaft, one end of which is fixed with a limit plate, and the other end of which is movably provided with an adjusting plate. One end of the mounting shaft has an insert plate that extends along the length of the mounting shaft. The adjusting plate has a through hole, through which the insert plate passes to move the adjusting plate. A fixing component for fixing the adjusting plate is provided between the insert plate and the adjusting plate.

[0006] The present invention is further configured such that: the fixing component includes a plurality of stop slots formed on the insert plate, the plurality of stop slots are arranged along the length direction of the insert plate, and a limiting boss protrudes from the inner wall of the through hole, the limiting boss engaging with the stop slot.

[0007] The present invention is further configured such that: the through hole is arc-shaped, the through hole extends along the circumferential direction, and the insert plate can move along the extension direction of the through hole.

[0008] The present invention is further configured such that the opening of the gear slot and the edge of the limiting boss are both provided with rounded corners.

[0009] The present invention is further configured such that: one end of the mounting shaft has two insert plates, the two insert plates are arranged at equal intervals along the circumference of the mounting shaft, and the adjusting plate has two through holes corresponding to the insert plates.

[0010] The present invention is further configured such that: both the limiting plate and the adjusting plate have a baffle protruding on the side facing the mounting shaft, and the baffle extends along the circumferential direction.

[0011] The present invention is further configured such that: a notch is provided on the baffle for the printing paper to pass through.

[0012] In addition, this utility model also proposes a printer that includes the above-mentioned novel paper limiter structure.

[0013] Compared with the prior art, the present invention has at least the following advantages:

[0014] 1. The limiting plates and adjusting plates at both ends of the mounting shaft limit the paper roll to the left and right. The adjusting plate and the insert plate are axially slidably connected by the movable setting. After the adjusting plate moves, it is relatively fixed by the fixing component, so as to realize the adjustment of the total length of the paper limiter. This allows the paper limiter to accurately match paper rolls of different sizes and improve the applicability of the paper limiter.

[0015] 2. Both the limiting plate and the adjusting plate are equipped with baffles. The baffles are arranged circumferentially along their edges to wrap around the paper roll and prevent it from coming loose. Attached Figure Description

[0016] Figure 1 is an overall schematic diagram of this embodiment;

[0017] Figure 2 is an explosion diagram of this embodiment;

[0018] Figure 3 is a schematic diagram of the installation shaft and the limiting plate.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Mounting shaft; 2. Limiting plate; 3. Adjusting plate; 4. Insert plate; 5. Through hole; 6. Fixing component; 601. Gear slot; 602. Limiting boss; 7. Baffle; 8. Notch. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] A novel paper limiter structure, as shown in Figures 1 to 3, includes a mounting shaft 1. One end of the mounting shaft 1 is fixed with a limiting plate 2, and the other end is movably provided with an adjusting plate 3. The mounting shaft 1 is cylindrical, and both the limiting plate 2 and the adjusting plate 3 are circular and coaxial with the mounting shaft 1. The printing paper roll is sleeved on the mounting shaft 1, and the limiting plate 2 and the adjusting plate 3 limit the left and right sides of the printing paper roll.

[0024] One end of the mounting shaft 1 has an insert plate 4, which extends along the length of the mounting shaft 1 towards the adjusting plate 3. The insert plate 4 and the mounting shaft 1 are integrally formed. The adjusting plate 3 has a through hole 5, through which the insert plate 4 passes, allowing the adjusting plate 3 to move along the insert plate 4. A fixing component 6 is provided between the insert plate 4 and the adjusting plate 3 to fix the adjusting plate 3. By changing the position of the adjusting plate 3 and fixing it with the fixing component 6, the overall length of the paper limiter can be adjusted, allowing the paper limiter to adapt to different sizes of printing paper rolls and improving its applicability.

[0025] In this embodiment, the fixing component 6 includes several position slots 601 formed on the insert plate 4. The position slots 601 are formed on the outer side wall of the insert plate 4 and are equidistantly arranged along the length direction of the insert plate 4. A limiting boss 602 protrudes from the inner wall of the through hole 5 and engages with the position slots 601. When the adjusting plate 3 moves along the insert plate 4, the limiting boss 602 engages with the position slots 601 to achieve relative fixation between the adjusting plate 3 and the insert plate 4. Different length positions are corresponding to the limiting boss 602 engaging with different position slots 601.

[0026] The through hole 5 is arc-shaped and extends circumferentially. The arc shape of the through hole 5 is coaxial with the mounting shaft 1, allowing the insert plate 4 to move along the extension direction of the through hole 5. This allows the adjusting plate 3 to rotate when the insert plate 4 is inserted into the through hole 5. The width of the through hole 5 is at least greater than or equal to the width of the insert plate 4 plus the width of the limiting boss 602, so that the insert plate 4 can initially avoid the limiting boss 602 when inserted into the through hole 5, facilitating the movement of the adjusting plate 3. When the adjusting plate 3 moves to the appropriate position, it is then rotated to allow the limiting boss 602 to enter the position groove 601.

[0027] Both the opening of the stop groove 601 and the edge of the limiting boss 602 are rounded. These rounded corners are located on both sides of the width, making it easier for the limiting boss 602 to disengage from the stop groove 601 when the user rotates the adjusting plate 3, thus making operation more convenient. During normal use, the force exerted by the printing paper roll on the adjusting plate 3 is axial along the mounting shaft 1, not circumferentially. Therefore, under normal use, the limiting boss 602 will not disengage from the stop groove 601. Only when the user needs to adjust the length can external force be applied to rotate the adjusting plate 3 to move the limiting boss 602 out.

[0028] In this embodiment, one end of the mounting shaft 1 has two insert plates 4, which are equidistantly arranged along the circumference of the mounting shaft 1. The adjusting plate 3 has two through holes 5 corresponding to the insert plates 4. The two insert plates 4 are inserted into the corresponding through holes 5, making the overall structure more stable. In this embodiment, only one insert plate 4 is provided with a stop groove 601, and there is also only one through hole 5 with a limit boss 602.

[0029] Both the limiting plate 2 and the adjusting plate 3 have a baffle 7 protruding from the side facing the mounting shaft 1, and the baffle 7 extends in the circumferential direction. The baffle 7 covers both ends of the printing paper roll, which can prevent the printing paper roll from coming loose.

[0030] The baffle 7 has a notch 8, which makes the baffle 7 form a C-shaped semi-closed structure. The notch 8 is used for the printing paper to pass through. When the adjusting plate 3 is rotated to the point where the limiting boss 602 engages with the stop groove 601, the notch 8 on the adjusting plate 3 and the limiting plate 2 are aligned with each other.

[0031] The usage process of this utility model is as follows:

[0032] First, place the printing paper roll onto the mounting shaft 1. Then, insert the insert plate 4 at the end of the mounting shaft 1 into the through hole 5 of the adjusting plate 3. Move the adjusting plate 3 to the appropriate stop groove 601 position, and then rotate the adjusting plate 3 to make the limiting boss 602 engage in the stop groove 601. This completes the installation. Pull out the printing paper roll connector from the notch 8 of the baffle 7 for normal use. When it is necessary to remove the adjusting plate 3, rotate the adjusting plate 3 to disengage the limiting boss 602 from the stop groove 601, and then remove the adjusting plate 3 from the insert plate 4.

[0033] In addition, this embodiment also provides a printer, including the novel paper limiter structure described above.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel paper limiter structure characterized by: The device includes a mounting shaft (1), one end of which is fixed with a limiting plate (2), and the other end is movably provided with an adjusting plate (3). One end of the mounting shaft (1) has an insert plate (4), which extends along the length of the mounting shaft (1). The adjusting plate (3) has a through hole (5), through which the insert plate (4) passes to allow the adjusting plate (3) to move along the insert plate (4). A fixing component (6) for fixing the adjusting plate (3) is provided between the insert plate (4) and the adjusting plate (3).

2. A novel paper limiter structure according to claim 1, characterized in that: The fixing component (6) includes a plurality of gear slots (601) formed on the insert plate (4), the plurality of gear slots (601) being arranged along the length direction of the insert plate (4), and a limiting boss (602) protruding from the inner wall of the through hole (5), the limiting boss (602) engaging with the gear slots (601).

3. A novel paper limiter structure as claimed in claim 2, wherein: The through hole (5) is arc-shaped and extends along the circumferential direction. The insert plate (4) can move along the extension direction of the through hole (5).

4. A novel paper limiter structure according to claim 3, characterized in that: The opening of the gear slot (601) and the edge of the limiting boss (602) are both provided with rounded corners.

5. A new paper limiter structure according to claim 1, characterized in that: One end of the mounting shaft (1) has two insert plates (4), which are equidistant from each other along the circumference of the mounting shaft (1). The adjusting plate (3) has two through holes (5) corresponding to the insert plates (4).

6. A new paper limiter structure according to claim 1, characterized in that: Both the limiting plate (2) and the adjusting plate (3) have a baffle (7) protruding on the side facing the mounting shaft (1), and the baffle (7) extends in the circumferential direction.

7. A novel paper limiter structure as claimed in claim 6, wherein: The baffle (7) has a notch (8) for the printing paper to pass through.

8. A printer, characterized in that: The invention includes a novel paper limiter structure as described in any one of claims 1-7.

Images