Portable printer with roll paper positioning mechanism

Abstract

The utility model discloses a portable printer with a roll paper positioning mechanism, which comprises a printer main body, the inner side of the printer main body is movably connected with a mounting cover, a battery, a driving motor and a limiting motor are respectively arranged in the printer main body, and the driving end of the driving motor is fixedly connected with a roller. The driving end of the limiting motor is fixedly connected with a forward screw rod, one end of the forward screw rod is fixedly connected with a reverse screw rod, the outer sides of the forward screw rod and the reverse screw rod are in threaded connection with a nut seat, the top of the nut seat is fixedly connected with a limiting frame, the top of the limiting frame is provided with a mounting groove, and the inner side of the mounting groove is movably connected with a mounting shaft; through the arrangement of the limiting frame, the nut seat, the limiting motor, the forward lead screw and the reverse lead screw, the portable printer can position roll paper in the front-back direction and the left-right direction, paper deviation or paper jam in the printing process is avoided, and therefore it is ensured that the printing process is smooth and efficient.

Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, specifically a portable printer with a paper roll positioning mechanism. Background Technology

[0002] With the continuous development of printing technology, portable printing devices have received increasing attention and use due to their portability and mobility. They are widely used in printing consumables such as transaction vouchers, receipts, and express delivery slips. These consumables typically include printing materials and electronic tags with specifications of the printing materials, such as the type, material, shape, and size of the printing materials.

[0003] However, existing portable printers typically place the roll of paper in the paper tray during use, using the limited space of the roll to limit its movement, or place the roll of paper on a positioning shaft to limit its movement. While this type of printer can limit the movement, the roll of paper is prone to shifting left and right during the paper feeding process, leading to paper misalignment or paper jams. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a portable printer with a roll paper positioning mechanism to solve problems such as paper shifting or jamming caused by the left and right movement of existing roll paper.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A portable printer with a paper roll positioning mechanism includes a printer body, an inner side of which is movably connected to a mounting cover. A battery, a drive motor, and a limit motor are respectively installed inside the printer body. A roller is fixedly connected to the drive end of the drive motor, a forward lead screw is fixedly connected to the drive end of the limit motor, and a reverse lead screw is fixedly connected to one end of the forward lead screw. Nut seats are threaded onto the outer sides of the forward and reverse lead screws. A limit frame is fixedly connected to the top of the nut seat, and a mounting groove is provided on the top of the limit frame. A mounting shaft is movably connected to the inner side of the mounting groove.

[0006] Preferably, a control panel is fixedly connected to one side of the printer body, and a display screen and control buttons are respectively installed on the top of the control panel.

[0007] Preferably, the top of the printer body is provided with a paper output slot, and a paper cutter is installed on the inner side of the paper output slot.

[0008] Preferably, a mounting bracket is installed on the inner side of the mounting cover, and a roller is installed on the inner side of the mounting bracket.

[0009] Preferably, the output terminal of the battery is electrically connected to a motherboard, and the output terminal of the motherboard is electrically connected to a thermal printing module.

[0010] Preferably, there are two rollers, both of which are made of rubber material.

[0011] This utility model provides a portable printer with a roll paper positioning mechanism, which has the following advantages:

[0012] This portable printer with a paper roll positioning mechanism uses a limit frame, nut seat, limit motor, forward lead screw, and reverse lead screw. When using the printer, the operator inserts the mounting shaft into the center of the paper roll and places it in the mounting slot of the limit frame. The mounting shaft then positions the paper roll, preventing it from moving forward or backward. The operator then closes the mounting cover, at which point the roller presses down on the paper roll. Simultaneously, the limit motor drives the forward and reverse lead screws to rotate clockwise. The nut seat, due to the rotation of the forward and reverse lead screws, moves the limit frame inward, causing it to fit against both sides of the paper roll, thus positioning it horizontally and preventing it from moving laterally during rotation. This allows the portable printer to position the paper roll both forward / backward and horizontally, preventing paper shifting or jamming during printing, ensuring a smooth and efficient printing process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the mounting cover of this utility model;

[0015] Figure 3 This is a cross-sectional view of the main body of the printer of this utility model;

[0016] Figure 4 This is a cross-sectional view of the main body of the printer of this utility model;

[0017] Figure 5 This is a partial structural diagram of the roller of this utility model.

[0018] In the diagram: 1. Printer body; 101. Battery; 102. Mainboard; 103. Thermal printing module; 2. Control panel; 3. Display screen; 4. Control buttons; 5. Paper output tray; 6. Paper cutter; 7. Mounting cover; 8. Mounting bracket; 9. Roller; 10. Limit bracket; 11. Mounting slot; 12. Mounting shaft; 13. Roller; 14. Drive motor; 15. Nut seat; 16. Limit motor; 17. Forward lead screw; 18. Reverse lead screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a portable printer with a paper roll positioning mechanism, including a printer body 1, an installation cover 7 movably connected to the inner side of the printer body 1, a battery 101, a drive motor 14 and a limit motor 16 respectively installed inside the printer body 1, a roller 13 fixedly connected to the drive end of the drive motor 14, a forward lead screw 17 fixedly connected to the drive end of the limit motor 16, a reverse lead screw 18 fixedly connected to one end of the forward lead screw 17, a nut seat 15 threadedly connected to the outer side of the forward lead screw 17 and the reverse lead screw 18, a limit frame 10 fixedly connected to the top of the nut seat 15, an installation groove 11 opened on the top of the limit frame 10, and an installation shaft 12 movably connected to the inner side of the installation groove 11.

[0021] In this embodiment, a control panel 2 is fixedly connected to one side of the printer body 1. A display screen 3 and control buttons 4 are respectively installed on the top of the control panel 2. The control buttons 4 facilitate the operation and control of the printer by the staff.

[0022] In this embodiment, a paper output slot 5 is provided on the top of the printer body 1, and a paper cutter 6 is installed on the inner side of the paper output slot 5. After printing, the operator places the paper roll in the position of the paper cutter 6, at which time the paper cutter 6 will puncture the paper roll.

[0023] In this embodiment, an installation bracket 8 is installed on the inner side of the installation cover 7, and a roller 9 is installed on the inner side of the installation bracket 8. When the operator closes the installation cover 7, the roller 9 presses down on the roll of paper.

[0024] In this embodiment, the output terminal of the battery 101 is electrically connected to the motherboard 102, and the output terminal of the motherboard 102 is electrically connected to the thermal printing module 103. The motherboard 102 is powered by the battery 101, and the motherboard 102 issues commands to the thermal printing module 103 to print on the roll paper.

[0025] In this embodiment, there are two rollers 13, both of which are made of rubber material. The rollers 13 are driven by a drive motor 14 to operate, which can better transport the paper roll.

[0026] Working principle: When using the portable printer, the operator inserts the mounting shaft 12 into the center of the paper roll, and then places the mounting shaft 12 in the mounting slot 11 of the limiting frame 10. At this time, the mounting shaft 12 will position the paper roll to prevent it from moving back and forth. Then, the operator closes the mounting cover 7. At this time, the roller 9 presses down on the paper roll, and at the same time, the limiting motor 16 drives the forward lead screw 17 and the reverse lead screw 18 to rotate clockwise. The nut seat 15, due to the rotation direction of the forward lead screw 17 and the reverse lead screw 18, drives the limiting frame 10 to rotate clockwise. When the paper roll moves inward, the limiting bracket 10 will fit against both sides of the paper roll, thereby positioning the paper roll left and right and preventing it from moving left and right during rotation. This allows the portable printer to position the paper roll forward, backward, left, and right. During printing, the drive motor 14 drives the roller 13 to rotate, and the roller 13 pulls the paper roll through the roller 9. At the same time, the thermal printing module 103 will print on the paper roll. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable printer with a roll paper positioning mechanism, characterized in that: Including printer body (1), the inner side of the printer body (1) is movably connected with installation cover (7), the inside of the printer body (1) is installed with battery (101), drive motor (14) and limit motor (16) respectively, the drive end of drive motor (14) is fixedly connected with cylinder (13), the drive end of limit motor (16) is fixedly connected with forward screw rod (17), one end of forward screw rod (17) is fixedly connected with reverse screw rod (18), the outer side of forward screw rod (17) and reverse screw rod (18) is threadedly connected with nut seat (15), the top of nut seat (15) is fixedly connected with limit frame (10), the top of limit frame (10) is provided with installation slot (11), the inner side of installation slot (11) is movably connected with mounting shaft (12).

2. The portable printer having a paper winding positioning mechanism according to claim 1, characterized in that: One side of the printer body (1) is fixedly connected with control panel (2), and the top of the control panel (2) is provided with display screen (3) and control key (4) respectively.

3. The portable printer having a paper winding positioning mechanism according to claim 1, characterized in that: The top of the printer body (1) is provided with paper outlet slot (5), and the inner side of the paper outlet slot (5) is provided with paper cutter (6).

4. The portable printer having a paper winding positioning mechanism according to claim 1, wherein: The inner side of the installation cover (7) is provided with mounting bracket (8), and the inner side of the mounting bracket (8) is provided with roller shaft (9).

5. The portable printer having a paper winding positioning mechanism according to claim 1, characterized in that: The output end of the battery (101) is electrically connected with mainboard (102), and the output end of the mainboard (102) is electrically connected with thermal sensitive printing module (103).

6. The portable printer having a paper winding positioning mechanism according to claim 1, wherein: The cylinder (13) is provided with two, and the two cylinder (13) is processed by rubber material.

Images