A paper hopper structure and printer for easy installation

Abstract

The utility model discloses a paper bin structure of convenient installation contains: paper bin, paper stop board, wherein, the paper bin has first paper stop board sliding joint part, second paper stop board sliding joint part and the paper stop board access hole that first paper stop board sliding joint part is communicated along the circumference, wherein, the paper stop board has with first paper stop board sliding joint part sliding cooperation's first sliding joint end and with second paper stop board sliding joint part sliding cooperation's second sliding joint end, wherein, the paper stop board access hole is set to: when rotating with left and right direction as center, its first sliding joint end can be from first paper stop board sliding joint part to paper stop board access hole active, and its second sliding joint end can be synchronous from second paper stop board sliding joint part and separate. The paper bin structure of the present application, by setting paper stop board access hole, can control the sliding joint end of paper stop board both sides and then access the corresponding paper stop board sliding joint part in, thereby the installation of paper stop board is convenient. The present application provides another kind of printer.

Description

Technical Field

[0001] This utility model relates to printing equipment technology, specifically to a paper tray structure and printer that are easy to install. Background Technology

[0002] Common thermal printers include a main body, a printhead assembly, and a paper tray for holding rolls of printing paper. To accommodate rolls of printing paper of different widths, a paper stop (also known as a paper jammer or paper holder) is typically installed inside the paper tray. The position of the paper stop in the left-right direction can be controlled to accommodate rolls of printing paper of different widths. Taking the paper jammer structure of the printer disclosed in patent application CN218228410U as an example, its solution uses the two sides of the paper jammer structure to elastically fit tightly against the two sides of the arc-shaped groove in the paper tray, that is, to install the paper jammer onto the paper tray by utilizing the deformation of the paper jammer structure. The aforementioned solution requires the user to control the force of the deformation of the paper jammer structure, which is not convenient to operate, and if too much force is applied during installation, the paper jammer is easily bent and damaged. In view of this, this application is hereby filed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a paper warehouse structure that is different from the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a conveniently installed paper tray structure, comprising: a paper tray capable of accommodating rolls of printing paper; a baffle plate installed on the paper tray, the baffle plate's position in the left-right direction being controllably adjustable to accommodate rolls of printing paper of different widths; wherein the paper tray has a first baffle plate sliding joint, a second baffle plate sliding joint, and a baffle plate access hole circumferentially connected to the first baffle plate sliding joint; wherein the baffle plate has a first sliding end that slidably engages with the first baffle plate sliding joint, and a second sliding end that slidably engages with the second baffle plate sliding joint; wherein the baffle plate access hole is configured such that when the baffle plate rotates around the left-right direction as a center, its first sliding end can move from the first baffle plate sliding joint to the baffle plate access hole, while its second sliding end can simultaneously disengage from the second baffle plate sliding joint.

[0005] Preferably, the paper tray has baffle plate engaging grooves spaced apart in the left-right direction. The baffle plate has a paper-supporting component and an anti-slip component. The paper-supporting component is slidably installed in the paper tray, and the anti-slip component is installed on the paper-supporting component. The anti-slip component can switch between being embedded in the baffle plate engaging groove and being disengaged from the baffle plate engaging groove.

[0006] Preferably, the anti-slip member switches between being embedded in the guide plate engaging groove and being disengaged from the guide plate engaging groove by rotating relative to the paper support member.

[0007] This application also provides a printer that includes the paper tray structure described in any of the preceding claims.

[0008] Preferably, the printer includes a body on which a printhead assembly and the paper tray structure are mounted; the printhead assembly has a paperboard stop limiting portion that is embedded in the paperboard stop access hole.

[0009] Preferably, the printer includes a cover on which a drive roller assembly is mounted and is movable relative to the machine body to allow for the path of the roll of printing paper into and out of the paper tray.

[0010] Preferably, the cover is rotatably mounted on the body via a pivot shaft.

[0011] Preferably, the printhead assembly has a paper tray limiting portion, wherein the paper tray is limited on one side in the front-rear direction by the pivot shaft and held on the machine body, and the paper tray is limited on the other side in the front-rear direction by the paper tray limiting portion and held on the machine body.

[0012] Preferably, the distance between the paper trays in the left-right direction of the paper tray structure is greater than the distance between the printhead assembly in the left-right direction.

[0013] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: The paper tray structure of this application, by setting the guide plate access hole, can control the sliding ends on both sides of the guide plate to be connected to the corresponding guide plate sliding parts in sequence, which is convenient for installation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0015] Figure 1 and Figure 2 Schematic diagrams of a printer according to one embodiment are shown from different perspectives; Figure 3 A schematic diagram of a printer according to an embodiment, showing the cover after it has moved relative to the main body; Figure 4 A first exploded view of a printer according to an embodiment is shown; Figure 5 A second exploded view of a printer according to one embodiment is shown. Figure 6 A printer according to one embodiment is shown in a third exploded view. Figure 7 and Figure 8 Cross-sectional views of different positions of a printer according to one embodiment are shown; Figure 9 A diagram illustrating the positional changes of the paper tray relative to the machine body in the left-right direction is shown in an embodiment of a printer. Figure 10 A schematic diagram of the paper tray of a printer according to one embodiment is shown; Figure 11 and Figure 12 Cross-sectional views of different locations in the paper tray of a printer according to one embodiment are shown respectively; Figure 13 A schematic diagram of a printer with a paper stop plate according to one embodiment is shown; Figure 14 An exploded view of a printer with a paper stop plate according to one embodiment is shown; Figure 15 A diagram illustrating the process of installing a paper stop in a paper tray of a printer according to one embodiment is shown (only a portion of the paper tray structure is shown). Figure 16 A schematic diagram of a printer and its printhead assembly according to one embodiment is shown.

[0016] Figure label: 1. Body, 1A. Base, 1B. Cover, 2. Paper tray, 3. Paper baffle, 4. Print head assembly, P1. Drive roller assembly, P2. Guide rod, N1. Limiting groove, N2. Deformation adapter groove, N3. Limiting structure, N. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0019] Combination Figures 1 to 16In one embodiment, the printer of this application includes a body 1, a cover 2, a paper tray 3, a guide plate 4, a printhead assembly P1, and a drive roller assembly P2. The paper tray 3 is used to hold rolls of printing paper. The printhead assembly P1 and the drive roller assembly P2 cooperate to move the rolls of printing paper and perform printing operations on the rolls of printing paper. The rolls of printing paper are, for example, common label printing paper. The printer of this application can be, for example, a handheld printer for printing labels. The paper tray 3 and the guide plate 4 cooperate to form a paper tray structure, which is integrally mounted on the body 1. The following will be described in detail with reference to the figures. For ease of explanation, the X direction in the figures represents the printer's direction from right to left, the Y direction represents the direction from back to front, and the Z direction represents the direction from bottom to top.

[0020] [Body] In this embodiment, the body 1 includes a base 1A and a top mount 1B. The top mount 1B is mounted on the base 1A, and the base 1A houses a control panel, power supply components, and other structures. The body 1 has a pivot lug T and a guide rod N1, both located on the base 1A. The printhead assembly P1 is mounted on the body 1, combined with... Figure 16 In this embodiment, the printhead assembly P1 has a paper tray limiting part P11 and a paperboard limiting part P12, the functions of which will be further explained later. The printhead assembly P1 is a common functional component, and its specific working principle will not be described in detail here.

[0021] [Cover] Cover 2 is movable relative to the machine body 1 to make way for the path of roll printing paper entering and exiting the paper tray 3. A drive roller assembly P2 is mounted on cover 2. Cover 2 has a pivot lug 2A, and a pivot shaft L passes through pivot lug 2A and pivot lug T, so that cover 2 is rotatably mounted on the machine body 1 via pivot shaft L.

[0022] [Paper Tray] Paper tray 3 is installed on the machine body 1 to hold rolls of printing paper. Combined with... Figure 9 The paper tray 3 slides in a left-right configuration with the body 1. The paper tray 3 has a pivot lug 3A, a guide plate engaging groove 3B, a scale portion 3C, a guide plate sliding portion 3D, a printhead engaging portion 3E, a guide plate inlet hole 3F, a limiting groove N2, and a deformation adaptation groove N3. In this embodiment, the distance of the paper tray 3 in the left-right direction is greater than the distance of the printhead assembly P1 in the left-right direction.

[0023] The pivot shaft L passes through the pivot lug 3A, so that the paper tray 3 is guided by the pivot shaft L to slide and engage with the machine body 1 in the left and right directions. At the same time, the paper tray 3 is limited on one side (rear side) in the front and back directions by the pivot shaft L and is held on the machine body 1.

[0024] The paper guide plate engaging groove 3B is provided at intervals in the left and right directions of the paper tray 3, and the paper guide plate engaging groove 3B is used to position the paper guide plate 4.

[0025] The ruler section 3C is used to indicate the appropriate width for roll printing paper.

[0026] The sliding joint 3D of the baffle plate extends in the left-right direction. In this embodiment, the paper tray 3 has the sliding joint 3D of the baffle plate on both the front and rear sides. In this embodiment, the sliding joint 3D of the baffle plate is a groove for slidingly engaging with the paper tray 3. The baffle plate 4 and the sliding joint 3D of the baffle plate slide together in the left-right direction.

[0027] The printhead engagement portion 3E extends in the left-right direction. In this embodiment, the printhead engagement portion 3E is a groove for fitting the printhead assembly P1. Figure 7 and Figure 8 The paper tray limiting part P11 of the printhead assembly P1 is fitted into the printhead joint 3E, so that the paper tray 3 is limited on the other side (front side) of the printhead assembly P1 by the paper tray limiting part P11 of the printhead assembly P1 and is held on the body 1.

[0028] The guide plate inlet hole 3F is used to mate with the installation of the guide plate 4. Specifically, the guide plate inlet hole 3F is a strip-shaped hole formed on the paper tray 3, which circumferentially connects the printhead engagement portion 3E and the guide plate sliding portion 3D located on the same side as the printhead engagement portion 3E. The guide plate inlet hole 3F extends in the left-right direction of the printer, and the extension distance may be slightly greater than the left-right extension distance of the sliding end M121 of the guide plate 4. Figure 8 The printhead assembly P1 has a paperboard limiting part P12 connected to the paper tray limiting part P11 (in this embodiment, it is a one-piece molded structure), combined with Figure 7 , Figure 8 , Figure 11 and Figure 15 The baffle plate limiting part P12 is inserted into the baffle plate access hole 3F, thereby limiting the sliding end M121 on one side of the baffle plate 4. The following text will further explain how the baffle plate access hole 3F cooperates with the baffle plate 4 for installation.

[0029] The guide rod N1, the limiting groove N2, and the deformation adapting groove N3 cooperate to form the limiting structure N. When the paper tray 3 slides to different positions relative to the machine body 1, the limiting structure N changes to different limiting states to keep the paper tray 3 in the corresponding position. Specifically, the limiting groove N2 has multiple limiting groove segments spaced apart in the left-right direction (two in this embodiment), combined with... Figure 9The limiting groove segment is adapted to the outer circumference of the guide rod N1. When the paper tray 3 slides to different positions relative to the machine body 1 in the left and right direction, the guide rod N1 slides to different limiting groove segments relative to the limiting groove N2. The deformation adaptation groove N3 is located on the front and rear sides of the limiting groove N2. When the guide rod N1 slides between different limiting groove segments relative to the limiting groove N2, the deformation adaptation groove N3 provides the space required for the deformation of the groove wall of the limiting groove N2. It should be understood that the positions of the guide rod N1 and the limiting groove N2 can also be interchanged. The printer body can be further equipped with a position sensor (not shown in the figure) for detecting the position of the paper tray 3 relative to the machine body 1, which is electrically connected to the printer's control circuit. For example, it is a photoelectric sensor or a Hall sensor. By setting the position sensor, the printer's control mechanism can control the printing area of ​​the print head assembly P1 according to the position of the paper tray 3 relative to the print head assembly P1.

[0030] [Guide Plate] The guide plate 4 is installed inside the paper tray 3, and its position in the left-right direction can be controlled and adjusted to accommodate rolls of printing paper of different widths in the paper tray 3. Combined with... Figure 13 and Figure 14 In this embodiment, the paper baffle 4 has a paper support 4A and an anti-slip component 4B.

[0031] The paper support component 4A has an mounting part M11 and a paper support part M12. The mounting part M11 is used to mount the anti-slip component 4B, and the paper support part M12 is used to support the roll of printing paper. Both sides of the paper support part M12 are sliding ends M121 that are adapted to the sliding joint part 3D of the paper stop plate. The paper stop plate 4 is slidably installed in the paper tray 3 by the insertion of the joint part M121 into the sliding joint part 3D. In this embodiment, the paper stop plate 4 is inserted into the sliding joint part 3D through the sliding end M121, and the entire paper stop plate 4 will not detach from the paper tray 3. Compared to a method where the paper stop plate 4 can be removed, this avoids the problem of the paper stop plate 4 being easily lost after removal.

[0032] The anti-slip member 4B is mounted on the paper support member 4A and has a pivot portion M21 and an anti-slip portion M22. The anti-slip member 4B passes through the mounting portion M11 and is pivotally connected to the mounting portion M11 via the pivot portion M21, allowing the anti-slip member 4B to rotate relative to the paper support member 4A. The anti-slip portion M22 is located at the end of the anti-slip member 4B and is sized to match the guide plate engaging groove 3B. By rotating the anti-slip member 4B relative to the paper support member 4A via the pivot portion M21, the anti-slip portion M22 of the anti-slip member 4B can switch between being embedded in the guide plate engaging groove 3B and disengaged from the guide plate engaging groove 3B. When disengaged from the guide plate engaging groove 3B, the guide plate 4 can be controlled to slide relative to the paper tray 3.

[0033] [Panel Baffle Installation] Combined Figure 15 The following further explains how to install the baffle plate 4. For ease of explanation, the sliding joints M121 on the front and rear sides of the paper support component 4A of the baffle plate 4 are... Figure 15The first sliding joint end M121-1 and the second sliding joint end M121-2 are defined respectively. Correspondingly, the two paperboard sliding joint parts 3D are defined as the first paperboard sliding joint part 3D-1 and the second paperboard sliding joint part 3D-2, respectively. Figure 15 In the top and middle diagrams, during installation, first, the baffle plate 4 is placed into the paper tray 3, and the first sliding joint end M121-1 passes through the corresponding first baffle plate sliding joint part 3D-1 and enters the baffle plate inlet hole 3F. At this time, the second sliding joint end M121-2 is not embedded in the corresponding second baffle plate sliding joint part 3D-2; furthermore, combined with Figure 15 The middle and bottom images show how to rotate the baffle plate 4 around the left and right directions. Figure 15 (From a viewing angle, it is roughly a clockwise rotation), causing the second sliding end M121-2 to embed into the corresponding second cardboard sliding part 3D-2. At this time, the first sliding end M121-1 disengages from the cardboard inlet hole 3F and remains within the corresponding first cardboard sliding part 3D-1; further, combined with Figure 7 and Figure 8 This allows the paper tray limiting part P11 of the printhead assembly P1 to embed into the printhead joint 3E, and the paper stop limiting part P12 to embed into the paper stop inlet hole 3F, thereby limiting the paper tray 3 and the paper stop 4. Conversely, when it is necessary to separate the paper stop 4, the printhead assembly P1 can be removed first, allowing the paper stop 4 to rotate around the left and right direction, so that the first sliding end M121-1 can move from the first paper stop sliding part 3D-1 to the paper stop inlet hole 3F, while its second sliding end M121-2 can simultaneously disengage from the second paper stop sliding part 3D-2. By setting the paper stop inlet hole 3F, the sliding ends M121 on both sides of the paper stop 4 can be controlled to sequentially engage into the corresponding paper stop sliding parts 3D, thereby facilitating the assembly and disassembly of the paper stop 4.

[0034] The above is a detailed description of an embodiment of this application. The technical solution of this application allows for controllable adjustment of the paper tray 3's position in the left-right direction. This enables the relative positions of the paper tray 3 and the printhead assembly P1 in the left-right direction to be adjusted when the paper tray 3 holds rolls of printing paper of different widths. This facilitates control of the white space on both sides after printing the rolls of paper. Especially when the width of the rolls of paper is large, the left-right movable design of the paper tray 3 in this application can better control the white space on both sides after printing. For example, if the width of the rolls of paper is greater than the distance between the printhead assembly P1 and the paper tray in the left-right direction, moving the paper tray adjusts the relative positions of the paper tray 3 and the printhead assembly P1, ensuring a more balanced white space on both sides of the printed paper. In this embodiment, the printhead assembly P1 limits the paper tray 3 by embedding the paper tray limiting part P11 into the printhead joint 3E, and limits the baffle plate 4 by embedding the baffle plate limiting part P12 into the baffle plate inlet hole 3F. This helps improve the overall compactness of the printer.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A paper tray structure that is easy to install, comprising: Paper tray (3) is capable of holding rolls of printing paper (T); A baffle plate (4) is installed on the paper tray (3), and its position in the left and right directions can be controlled to accommodate rolls of printing paper of different widths in the paper tray (3). Its features are, in, The paper tray (3) has a first paperboard sliding joint (3D-1), a second paperboard sliding joint (3D-2), and a paperboard access hole (3F) that connects to the first paperboard sliding joint (3D-1) in the circumferential direction; The baffle plate has a first sliding end (M121-1) that slides in conjunction with the first baffle plate sliding part (3D-1), and a second sliding end (M121-2) that slides in conjunction with the second baffle plate sliding part (3D-2); The guide plate access hole (3F) is configured such that when the guide plate (4) rotates with the left and right directions as the center, its first sliding end (M121-1) can move from the first guide plate sliding part (3D-1) to the guide plate access hole (3F), and its second sliding end (M121-2) can simultaneously disengage from the second guide plate sliding part (3D-2).

2. The paper storage structure according to claim 1, characterized in that, The paper tray (3) has baffle plate engaging grooves (3B) spaced apart in the left and right direction. The baffle plate (4) has a paper support (4A) and an anti-slip member (4B). The paper support (4A) is slidably installed in the paper tray (3). The anti-slip member (4B) is installed on the paper support (4A) and can switch between being embedded in the baffle plate engaging groove (3B) and being detached from the baffle plate engaging groove (3B).

3. The paper storage structure according to claim 2, characterized in that, The anti-slip member (4B) switches between being embedded in the guide plate engaging groove (3B) and disengaged from the guide plate engaging groove (3B) by rotating relative to the paper support member (4A).

4. A printer, characterized in that, It includes the paper storage structure as described in any one of claims 1 to 3.

5. The printer according to claim 4, characterized in that, The printer includes a body (1) on which a printhead assembly (P1) and the paper tray structure are mounted; the printhead assembly (P1) has a paperboard stop limiting part (P12) which is embedded in the paperboard stop access hole (3F).

6. The printer according to claim 5, characterized in that, The printer includes a cover (2) on which a drive roller assembly (P2) is mounted and is movable relative to the machine body (1) to make way for the roll of printing paper to enter and exit the paper tray (3).

7. The printer according to claim 6, characterized in that, The cover (2) is rotatably mounted on the body (1) via a pivot shaft (L).

8. The printer according to claim 7, characterized in that, The printhead assembly (P1) has a paper tray limiting part (P11), the paper tray (3) is limited on one side in the front-rear direction by the pivot shaft (L) and held on the body (1), and the paper tray (3) is limited on the other side in the front-rear direction by the paper tray limiting part (P11) and held on the body (1).

9. The printer according to claim 5, characterized in that, The distance between the paper trays in the left-right direction is greater than the distance between the printhead assembly in the left-right direction.

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