Modular printer

Abstract

The utility model belongs to the technical field of printers, and particularly relates to a modularized printer, which comprises a shell (1), an upper cover (2) arranged at the upper end of the shell, a paper bin (3) arranged in the shell, a printer core (4) and a PCB (printed circuit board) (5), the paper bin (3) is arranged on the back surface of the mounting frame (6), and the paper bin (3) and the mounting frame (6) are fixedly connected; the printer core and the PCB are respectively and fixedly connected with the mounting rack (6) and the paper bin (3) to form a whole; the whole body is arranged in the shell (1), and the mounting rack is detachably connected with the shell; compared with the prior art, the quick-wear parts of the printer are convenient to disassemble and assemble from the printer, so that manpower and material resources for after-sales maintenance are saved.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a modular printer for desktop cash registers that is easy to assemble and disassemble. Background Technology

[0002] Desktop cash registers set up in various locations for printing paper receipts all require a printer connected to the cash register. The core modules of the printer include the printer core, the circuit board electrically connected to the printer core, and the paper tray inside the printer; it also includes the outer casing, top cover, etc. Currently, the above-mentioned core modules and other components are generally fixed separately in the outer casing with screws. Therefore, when the printer core or circuit board malfunctions and needs to be repaired or replaced, many parts need to be disassembled, and many parts need to be installed during the repair or replacement process, which is time-consuming and labor-intensive, making after-sales maintenance difficult and failing to meet the requirements for quick disassembly of parts for testing and repair in after-sales service. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a modular printer for desktop cash registers.

[0004] The technical solution is as follows: A modular printer includes a housing, a top cover located at its upper end, a paper tray located inside the housing, a printer core, and a PCB board; it also includes a mounting frame, the paper tray being located on the back of the mounting frame and the two being fixedly connected; the printer core and the PCB board are respectively fixedly connected to the mounting frame and the paper tray to form an integral unit; the integral unit is located inside the housing and the mounting frame is detachably connected to the housing.

[0005] Preferably, the mounting frame and the paper tray are integrally formed; the printer core is detachably connected to the upper end of the mounting frame; the PCB board is disposed on the upper surface of the paper tray and is detachably connected to the paper tray; the printer core and the PCB board are electrically connected via FPC.

[0006] Preferably, the mounting frame includes a front upright plate and two parallel side upright plates respectively disposed on both sides of it and perpendicular to it, and the opening of the paper compartment is disposed inside the front upright plate.

[0007] Preferably, at least two screw holes are provided in the upright plate, located on both sides of the opening, and at least two connecting screws pass through the screw holes and can be detachably connected to the outer casing.

[0008] Preferably, it further includes a front panel assembly, which includes a front panel, a bracket fixed to the lower back of the front panel, and an arc-shaped baffle for fixing the printing paper roll disposed on the upper end of the bracket and connected to the back of the front panel; the bracket is hinged to the lower end of the mounting bracket.

[0009] Preferably, the bracket includes a bracket upright plate, two bracket side plates respectively fixed on both sides of the bracket upright plate and perpendicular to it, and two L-shaped upright plates respectively disposed below the rear ends of the two bracket side plates and integrally formed therewith; two L-shaped mounting plates are fixedly disposed at the lower end of the upright plate, the two L-shaped upright plates are located between the two mounting plates and are hinged to the mounting plates; and an arc-shaped baffle is disposed at the upper end of the bracket upright plate and fixedly connected thereto.

[0010] Preferably, the mounting plate includes a folding plate; the lower horizontal plate of the L-shaped plate is hinged to the folding plate via a hinge connector.

[0011] Preferably, one of the side panels is provided with an integrally formed mounting frame; the right side of the mounting frame is embedded in one side edge of the outer shell, and the left side is located in the mounting bracket; it also includes a square tube whose rear end is fixedly connected to the outer wall of the paper tray and whose front end extends into the right side, the bottom of the square tube is provided with a cylindrical body with one end integrally formed with it and the other end open, and also includes a spring with one end inserted into the cylindrical body.

[0012] Preferably, the upper inner wall and lower inner wall of the mounting frame each have a horizontally aligned sliding groove; it also includes a fastener, which is integrally formed by a fastening plate and a plug-in cylinder with one end perpendicular to its inner surface. The fastener has a guide protrusion on its upper surface and a guide protrusion on its lower surface, and a protrusion integrally formed therewith on the outer wall of the plug-in cylinder; the fastener is located inside the mounting frame and the other end of the plug-in cylinder is sleeved on the front end of the square cylinder; the two guide protrusions are respectively movably embedded in the two horizontal sliding grooves for guiding the fastener when it slides in or out relative to the mounting frame; the bottom of the plug-in cylinder has a connecting post perpendicular to the fastening plate, and the connecting post is inserted into the other end of the spring.

[0013] Preferably, the printer core includes a fixed plate fixed to the upper end of the front panel and located in front of the arc-shaped baffle, a core body disposed on the upper end of the mounting bracket and detachably connected to the fixed plate, and a movable latch disposed on the core body for detachably connecting it to the fixed plate; the protrusion abuts against the front end of the movable latch; in the initial state, the fixed plate and the core body are fastened together, and pressing the fastener causes the protrusion to push the movable latch to rotate, thereby disengaging the fixed plate from the core body.

[0014] Preferably, the front panel has a snap-fit ​​notch on one side edge; the front surface of the top cover has a decorative hole, and a decorative plate fixedly connected to the front surface of the mounting bracket is provided thereon, the decorative plate being embedded in the decorative hole.

[0015] Technical advantages: This utility model's printer mounting bracket integrates components such as the paper tray, printer core, and PCB board into a single unit. The mounting bracket is fixed to the outer casing with a few screws. When after-sales maintenance is required, the mounting bracket can be directly removed from the casing to take out the integrated unit. Then, depending on the damage to the components, they can be repaired or replaced. After the maintenance is completed, the integrated unit can be reinstalled into the casing. Compared with the prior art, the easily damaged parts of this utility model are easy to disassemble and install from the printer, thus saving manpower and resources for after-sales maintenance. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0018] Figure 3 A perspective view showing the paper storage structure in the front view of an embodiment of this utility model;

[0019] Figure 4 A perspective view showing the paper storage structure from the rear direction, according to an embodiment of this utility model;

[0020] Figure 5 A perspective view of the front panel assembly from the rear view direction is shown for an embodiment of this utility model;

[0021] Figure 6 This is a perspective view showing the fastener structure and its fit with the outer shell in an embodiment of the present invention;

[0022] Figure 7 This is a perspective view of the structure of the fasteners installed on the paper tray, shown from the front view, according to an embodiment of the present invention.

[0023] Figure 8 This is a perspective view showing the paper tray and mounting frame combined in an embodiment of the present invention;

[0024] Figure 9 This is a perspective view of the fastener structure after installation, shown from the front view, according to an embodiment of the present invention.

[0025] Figure 10 This is a perspective view of the internal structure of the front panel assembly according to an embodiment of the present utility model;

[0026] Figure 11 This is a partial three-dimensional view of an embodiment of the present utility model;

[0027] Figure 12 This is a perspective view of the fastener in an embodiment of the present utility model.

[0028] Figure 13This is a perspective view of the fastener in an embodiment of the present utility model.

[0029] Reference numerals: Outer shell - 1, Top cover - 2, Paper tray - 3, Opening - 301, Printer core - 4, Fixing plate - 401, Core body - 402, Movable latch - 403, PCB board - 5, Mounting bracket - 6, Front panel - 601, Screw hole - 601a, Side panel - 602, Front panel assembly - 7, Front panel - 701, Snap-fit ​​notch - 701a, Bracket - 702, Bracket upright plate - 702a, Bracket side plate - 702b, L Upright plate-702c, lower horizontal plate-7021c, arc-shaped baffle-703, mounting folding plate-8, folding upright plate-801, hinge-9, mounting frame-10, horizontal slide rail-1001, square tube-11, cylindrical body-12, spring-13, fastener-14, fastening plate-1401, plug-in tube-1402, guide convex strip-1403, protrusion-1404, connecting column-1405, decorative plate-15, connecting screw-16. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] In this embodiment, the front surface of the front panel assembly is taken as the front surface, and other definitions of orientation are based on this.

[0032] like Figures 1-3 , Figure 8 As shown, this utility model embodiment provides a modular printer for use on a desktop cash register, including a housing 1, a top cover 2 located at its upper end, a paper tray 3 located inside the housing, a printer core 4, and a PCB board 5; it also includes a mounting frame 6, with the paper tray 3 located on the back of the mounting frame 6 and the two fixedly connected; the printer core and the PCB board are respectively fixedly connected to the mounting frame 6 and the paper tray 3 to form an integral unit; the integral unit is located inside the housing 1 and the mounting frame is detachably connected to the housing.

[0033] Specifically, such as Figure 8 As shown, the mounting frame 6 and the paper tray 3 are integrally formed, both made of plastic, allowing for integral molding using injection molding. The printer core 4 is detachably connected to the upper end of the mounting frame 6. The PCB board 5 is located on the upper surface of the paper tray 3 and is detachably connected to it. The printer core and the PCB board are electrically connected via an FPC (flexible printed circuit board). The term "detachable connection" means that the two components are connected by screws or other fasteners, allowing for disassembly.

[0034] like Figures 7-8As shown, the mounting frame 6 includes a front upright plate 601 and two parallel side upright plates 602 respectively disposed on both sides of it and perpendicular to it. The opening 301 of the paper compartment 3 is disposed inside the front upright plate.

[0035] At least two screw holes 601a are provided in the upright plate 601, located on both sides of the opening 301 respectively. At least two connecting screws 16 pass through the screw holes and can be detachably connected to the outer casing 1. Here, there are two screw holes on one side and one screw hole on the other side. Here, there are two screw holes on the left side of the opening and one screw hole on the right side. The number of connecting screws 16 corresponds to the number of screw holes. Obviously, under the premise of ensuring a stable connection between the mounting bracket 6 and the outer casing 1, the fewer screws, the easier the assembly and disassembly.

[0036] like Figures 1-2 , Figure 5 , Figure 10 As shown, it also includes a front panel assembly 7, which includes a front panel 701, a bracket 702 fixed to the back of the lower end of the front panel, and an arc-shaped baffle 703 for fixing the printing paper roll, which is located on the upper end of the bracket and connected to the back of the front panel; the bracket is hinged to the lower end of the mounting bracket 6 to facilitate opening the front panel assembly 7.

[0037] like Figure 10 As shown, the bracket 702 includes a bracket upright plate 702a, two bracket side plates 702b respectively fixed on both sides of the bracket upright plate and perpendicular to it, and two L-shaped upright plates 702c respectively located below the rear ends of the two bracket side plates and integrally formed with them; the lower end of the upright plate 601 is fixed with two L-shaped mounting plates 8, the two L-shaped upright plates are located between the two mounting plates and the L-shaped upright plates are hinged to the mounting plates; the arc-shaped baffle 703 is located at the upper end of the bracket upright plate 702a and is fixedly connected to it.

[0038] like Figures 10-11 As shown, the mounting plate 8 includes a folding plate 801; the lower horizontal plate 7021c of the L-shaped plate 702c is hinged to the folding plate via a hinge 9.

[0039] like Figures 2-13 As shown, one of the side panels 602 is provided with an integrally formed mounting frame 10; the right side of the mounting frame is embedded in one side edge of the outer shell 1, and the left side is located in the mounting bracket 6; it also includes a square tube 11 whose rear end is fixedly connected to the outer wall of the paper tray 3 and whose front end extends into the right side; the bottom of the square tube is provided with a cylindrical body 12 with one end integrally formed with it and the other end open; it also includes a spring 13 with one end inserted into the cylindrical body.

[0040] like Figures 2-13As shown, the upper inner wall and lower inner wall of the mounting frame 10 each have a horizontally aligned sliding groove 1001; it also includes a fastener 14, which is integrally formed by a fastening plate 1401 and a plug-in cylinder 1402 with one end perpendicular to its inner surface. The fastener has a guide protrusion 1403 on its upper surface and a protrusion 1404 integrally formed on the outer wall of the plug-in cylinder; the fastener is located in the mounting frame and the other end of the plug-in cylinder is sleeved on the front end of the square cylinder 11; the two guide protrusions are respectively movably embedded in the two horizontal sliding grooves 1001 for guiding the fastener when it slides in or out relative to the mounting frame; the bottom of the plug-in cylinder has a connecting post 1405 perpendicular to the fastening plate, and the connecting post is inserted into the other end of the spring 13.

[0041] like Figures 2-13 As shown, the printer core 4 includes a fixed plate 401 fixed to the upper end of the front panel 701 and located in front of the arc-shaped baffle 703, a core body 402 located on the upper end of the mounting bracket 6 and detachably connected to the fixed plate, and a movable latch 403 on the core body for detaching it from the fixed plate. The protrusion 1404 abuts against the front end of the movable latch. In the initial state, the fixed plate and the core body are fastened together, that is, the front panel assembly 7 is in the closed state. To open the front panel assembly, such as when changing the printing paper, press the fastener 14 to make the protrusion push the movable latch 403 to rotate, thereby disengaging the fixed plate from the core body. After the paper change is completed, close the front panel assembly 7, and the fixed plate and the core body are reassembled. It should be noted that the printer core 4 used in this embodiment is a commercially available standard part, such as a standard printer core module produced by Seiko Corporation. Its structure is existing technology and is used here in conjunction with the pressing fastener 14.

[0042] like Figure 2 As shown, the front panel 701 has a snap-fit ​​notch 701a on one side edge to accommodate a partial structure of the fastener 14; the front surface of the upper cover 2 has a decorative hole, and a decorative plate 15 is fixedly connected to the front surface of the mounting bracket 6, the decorative plate being embedded in the decorative hole.

[0043] In summary, the printer is equipped with a mounting bracket 6, which connects the paper tray 3, printer core 4, and PCB board 5 to the mounting bracket 6 to form a whole. The mounting bracket 6 is fixed to the outer casing 1 with a few screws. When after-sales maintenance is required, the mounting bracket 6 can be directly removed to take out the integrated whole from the outer casing 1. Then, the components can be repaired or replaced according to their damage. After the maintenance is completed, the integrated whole can be put back into the outer casing. Compared with the prior art, the vulnerable components of this utility model are easy to disassemble and install from the printer, which helps to save manpower and material resources for after-sales maintenance.

[0044] In the above description, it should be noted that the terms "installation", "connection", "connection" and other related terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; "set at" should be understood as "installed at" or "set at", including installation methods such as fixed installation and movable installation.

[0045] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Any equivalent structures made based on the description and drawings of this utility model, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A modular printer comprising a housing (1), an upper cover (2) provided at an upper end of the housing, a paper cassette (3) provided in the housing, a printer core (4) and a PCB board (5); characterized in that, It also includes a mounting frame (6), the paper bin (3) is arranged at the back of the mounting frame (6) and the two are fixedly connected; the printer core, the PCB board are fixedly connected with the mounting frame (6), the paper bin (3) and form an integral whole; the integral whole is arranged in the shell (1) and the mounting frame and the shell are detachably connected.

2. A modular printer as claimed in claim 1, wherein, The mounting frame (6) is integrally formed with the paper bin (3); the printer core (4) is detachably connected with the upper end of the mounting frame (6); the PCB board (5) is arranged on the upper surface of the paper bin (3) and is detachably connected with the paper bin; the printer core and the PCB board are electrically connected through an FPC.

3. A modular printer as claimed in claim 1, wherein, The mounting frame (6) includes a vertical plate (601), two mutually parallel side vertical plates (602) arranged on both sides of the vertical plate (601) and perpendicular to the vertical plate (601), and the opening (301) of the paper bin (3) is arranged in the vertical plate (601).

4. A modular printer as claimed in claim 3, wherein, At least two screw holes (601a) are arranged in the vertical plate (601) and located on both sides of the opening (301), and at least two connecting screws (16) are arranged to be detachably connected with the shell (1) through the screw holes.

5. A modular printer as claimed in claim 4, wherein, It also includes a front panel assembly (7) which includes a front panel (701), a support (702) fixedly arranged at the lower end of the back of the front panel, an arc-shaped baffle (703) for fixing a printing paper roll arranged at the upper end of the support and connected with the back of the front panel; the support is hingedly connected with the lower end of the mounting frame (6).

6. A modular printer as claimed in claim 5, wherein, The support (702) includes a support vertical plate (702a), two support side plates (702b) fixedly arranged on both sides of the support vertical plate (702a) and perpendicular to the support vertical plate (702a), and two L-shaped vertical plates (702c) arranged below the rear ends of the two support side plates (702b) and integrally formed with the two support side plates (702b); the lower end of the vertical plate (601) is fixedly provided with two mounting folding plates (8) with L-shaped cross sections, the two L-shaped vertical plates (702c) are located between the two mounting folding plates (8) and the L-shaped vertical plates (702c) are hingedly connected with the mounting folding plates (8); the arc-shaped baffle (703) is arranged at the upper end of the support vertical plate (702a) and fixedly connected with the support vertical plate (702a).

7. A modular printer as claimed in claim 6, wherein, The mounting folding plate (8) includes a folding vertical plate (801); the lower horizontal plate (7021c) of the L-shaped vertical plate (702c) is hingedly connected with the folding vertical plate through a hinge (9).

8. A modular printer as claimed in claim 5, wherein, One of the side vertical plates (602) is provided with an installation frame body (10) integrally formed with the side vertical plate (602); the right side of the installation frame body is embedded in one of the side edges of the shell (1), and the left side is located in the mounting frame (6); it also includes a square cylinder (11) fixedly connected with the outer side wall of the paper bin (3) at the rear end and penetrating into the right side at the front end, a cylindrical body (12) with one end integrally formed with the square cylinder and the other end open is arranged in the bottom of the square cylinder, and a spring (13) with one end inserted into the cylindrical body is further included.

9. A modular printer as claimed in claim 8, wherein, The upper inner wall and the lower inner wall of the mounting frame body (10) are respectively provided with a transverse sliding groove (1001) in alignment with each other; further comprising a fastener (14) which is integrally formed by a fastening plate (1401) and a plug-in sleeve (1402) vertically connected to the inner surface of the fastening plate at one end, the upper surface and the lower surface of the fastener are respectively provided with a guide protrusion (1403), and a protrusion (1404) is formed on the outer wall of the plug-in sleeve; the fastener is located in the mounting frame body and the other end of the plug-in sleeve is sleeved with the front end of the square cylinder (11); the two guide protrusions are respectively movably embedded in the two transverse sliding grooves (1001) for guiding when the fastener slides in or out relative to the mounting frame body; the bottom of the plug-in sleeve is provided with a connecting column (1405) which is perpendicular to the fastening plate and is inserted into the other end of the spring (13).

10. A modular printer as claimed in claim 9, wherein, The printer core (4) comprises a fixed plate (401) fixedly arranged on the upper end of the front panel (701) and located in front of the arc-shaped baffle (703), a core body (402) arranged on the upper end of the mounting bracket (6) and separably connected with the fixed plate, and a movable lock (403) arranged on the core body and used for realizing the separable connection between the core body and the fixed plate; the protrusion (1404) abuts against the front end of the movable lock; in the initial state, the fixed plate and the core body are fastened together, the fastener (14) is pressed to make the protrusion push the movable lock (403) to rotate, so that the fixed plate and the core body are separated.

11. A modular printer as claimed in claim 5, wherein, One side edge of the front panel (701) is provided with a fastening notch (701a); the front surface of the upper cover (2) is provided with a decorative hole, and the front surface of the upper end of the mounting bracket (6) is provided with a decorative plate (15) fixedly connected therewith, and the decorative plate is inlaid in the decorative hole.

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