Portable miniature printer

Abstract

The utility model discloses a portable miniprinter, and relates to the technical field of printers. Comprising a printing bottom frame, a containing groove is formed in the printing bottom frame, the upper end face of the right side wall of the printing bottom frame is an inclined face, a printing supporting platform is arranged on the inner side of the printing bottom frame, a thermal printing head is arranged in a printing upper limiting frame and located over the printing supporting platform, and a cutting auxiliary cavity is formed in the right side wall of the printing bottom frame; and a cutting auxiliary mechanism is arranged in the cutting auxiliary cavity. After printing work is completed, an electric push rod is used for pushing a sliding plate and a plurality of puncture needles to move upwards, after the upper end face of the sliding plate abuts against the inner wall of the upper side of a cutting auxiliary cavity, the upper ends of the puncture needles penetrate through printing paper and extend into upper through holes, the multiple puncture needles are used for puncturing the printing paper, and therefore an easy-to-tear line is formed on the printing paper; the problem that printing paper is not convenient to tear down is effectively solved, and meanwhile paper jam can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a portable micro printer. Background Art

[0002] A printer is a device that converts digital information in a computer or other electronic device into a physical document. Its basic working principle is to control a print head or a laser through signal processing, and use ink or toner to form characters or images on the paper being transmitted. Printers have been widely used in various fields such as homes, schools, and offices, and have become an indispensable part of modern society. Micro printers, due to their small size and portability, are widely used in all walks of life.

[0003] When a micro printer is in use, it is usually necessary to manually tear off the printed paper. Since the existing printers lack the guidance of a tear line, when the user tears the paper, the paper edge may become irregular or rough due to uneven force application, affecting the appearance and subsequent use; if the tearing method is improper, such as excessive force or incorrect direction, the paper may get stuck inside the printer, or even damage the printer components.

[0004] Therefore, the present application proposes a portable micro printer to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a portable micro printer, which solves the technical problems raised in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A portable micro printer, including a printing bottom frame, a control frame is fixedly connected to the left end of the printing bottom frame, an equipment power supply and a control module are arranged inside the control frame, a power switch is arranged outside the control frame, a placement groove is arranged in the printing bottom frame, the upper end surface of the right side wall of the printing bottom frame is arranged in an inclined plane, a printing support platform is arranged inside the printing bottom frame, the front and rear ends of the printing support platform are respectively fixedly connected to the front and rear inner side walls of the printing bottom frame, the upper end of the left side wall of the printing bottom frame is hinged with a printing upper limit frame, a thermal printing head is arranged inside the printing upper limit frame, the thermal printing head is located directly above the printing support platform, the thermal printing head is electrically connected to the control module, buckles are fixedly connected to the lower ends of the front and rear side walls of the printing upper limit frame, clamping grooves are arranged on the front and rear side walls of the printing bottom frame, the clamping grooves are adapted to the buckles, a cutting auxiliary cavity is arranged inside the right side wall of the printing bottom frame, and a cutting auxiliary mechanism is arranged inside the cutting auxiliary cavity.

[0007] Preferably, the cutting assistance mechanism includes an electric push rod, the upper end of the electric push rod is fixedly connected with a sliding plate, the front and rear ends of the sliding plate are respectively slidably connected with the front and rear inner walls of the cutting assistance cavity, the upper end of the cutting assistance cavity is fixedly connected with a puncture needle, a plurality of upper through holes are formed in the lower side wall of the printing upper limit frame, a plurality of lower through holes are formed in the upper side wall of the cutting assistance cavity, the lower through holes are located below the upper through holes, the puncture needle is located below the lower through holes, and the inner diameter sizes of the upper through holes and the lower through holes are both larger than the outer diameter size of the puncture needle.

[0008] Preferably, the upper end surface of the sliding plate is parallel to the upper inner wall of the cutting assistance cavity.

[0009] Preferably, a driving motor and a driving roller are arranged inside the printing upper limit frame, the front and rear ends of the driving roller are respectively rotatably connected with the front and rear inner walls of the printing upper limit frame, the driving motor and the driving roller are driven by gears, the driving roller is located on the right side of the thermal printing head, and the lower side wall of the driving roller is close to the upper end surface of the right side wall of the printing bottom frame.

[0010] Preferably, the outer side wall of the driving roller is made of rubber material.

[0011] Preferably, abutting springs are fixedly connected to the front and rear inner walls of the placement groove, the adjacent ends of the two abutting springs are fixedly connected with limiting plates, the limiting plates are slidably connected with the inner side wall of the placement groove, abutting plates are rotatably connected to the adjacent side walls of the two limiting plates, and printing paper is arranged inside the two abutting plates.

[0012] Preferably, two limiting frames are fixedly connected to the upper end of the printing support platform, the limiting frames are U-shaped, limiting rollers are arranged inside the limiting frames, the front and rear ends of the limiting rollers are respectively rotatably connected with the front and rear inner walls of the limiting frames, and the two limiting frames are respectively located on the left and right sides of the thermal printing head.

[0013] Compared with the related art, a portable micro printer provided by the present invention has the following beneficial effects:

[0014] 1. The present invention provides a portable micro printer. In the device, a cutting assistance mechanism is arranged in the cutting assistance cavity. After the printing work is completed, the electric push rod is used to push the sliding plate and a plurality of puncture needles upward. When the upper end surface of the sliding plate abuts against the upper inner wall of the cutting assistance cavity, the upper end of the puncture needle penetrates the printing paper and extends into the upper through hole. The printing paper is punctured by a plurality of puncture needles, so as to form a tear line on the printing paper, which is convenient for tearing the printing paper, effectively solves the problem that it is not convenient to tear the printed work, and can effectively avoid paper jams at the same time.

[0015] 2. The present utility model provides a portable micro printer. In this device, abutting plates, limiting plates and abutting springs are arranged on both the front and rear sides of the printing paper. The abutting plates are used to ensure that the rolled printing paper can rotate, and the abutting springs are used to ensure the stability of the rolled printing paper. By limiting the printing paper, it is avoided that the printing paper shakes in the device, resulting in rough edges of the paper, which affects the appearance and subsequent use. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 It is a sectional three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 3 Of the present utility model Figure 2 Enlarged view of part A;

[0019] Figure 4 It is a sectional three-dimensional structural schematic diagram of the upper printing limit frame of the present utility model;

[0020] Figure 5 Of the present utility model Figure 4 Enlarged view of part B;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the position of the cutting auxiliary cavity of the printing bottom frame of the present utility model;

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the upper printing limit frame of the present utility model in the open state;

[0023] Figure 8 Of the present utility model Figure 7 Enlarged view of part C.

[0024] In the figure: 1. Printing bottom frame; 2. Control frame; 3. Placing groove; 4. Upper printing limit frame; 5. Device power supply; 6. Control module; 7. Power switch; 8. Thermal printing head; 9. Cutting auxiliary cavity; 10. Printing paper; 11. Printing support platform; 12. Limiting frame; 13. Limiting roller; 14. Upper through hole; 15. Driving roller; 16. Driving motor; 17. Electric push rod; 18. Sliding plate; 19. Puncture needle; 20. Lower through hole; 21. Abutting spring; 22. Limiting plate; 23. Abutting plate; 24. Buckle; 25. Card slot. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0026] Embodiment:

[0027] Please refer to Figure 1 - Figure 8 The present invention provides a technical solution: a portable micro printer, including a printing bottom frame 1. A control frame 2 is fixedly connected to the left end of the printing bottom frame 1. An equipment power supply 5 and a control module 6 are arranged in the control frame 2. A wireless data transmission module is arranged in the control module 6. A power switch 7 is arranged outside the control frame 2. A placement slot 3 is arranged in the printing bottom frame 1. The upper end surface of the right side wall of the printing bottom frame 1 is inclined, which ensures that the printing paper 10 is exported more smoothly. A printing support platform 11 is arranged inside the printing bottom frame 1. The front and rear ends of the printing support platform 11 are fixedly connected to the front and rear inner side walls of the printing bottom frame 1 respectively. The upper end of the left side wall of the printing bottom frame 1 is hinged with a printing upper limit frame 4. A thermal printing head 8 is arranged in the printing upper limit frame 4. The thermal printing head 8 is located directly above the printing support platform 11. The thermal printing head 8 is electrically connected to the control module 6. The lower ends of the front and rear side walls of the printing upper limit frame 4 are fixedly connected with buckles 24. Card slots 25 are arranged on the front and rear side walls of the printing bottom frame 1. The card slots 25 are adapted to the buckles 24. A cutting auxiliary cavity 9 is arranged inside the right side wall of the printing bottom frame 1. A cutting auxiliary mechanism is arranged in the cutting auxiliary cavity 9;

[0028] The cutting auxiliary mechanism includes an electric push rod 17. The upper end of the electric push rod 17 is fixedly connected with a sliding plate 18. The front and rear ends of the sliding plate 18 are slidably connected to the front and rear inner side walls of the cutting auxiliary cavity 9 respectively. A puncture needle 19 is fixedly connected to the upper end of the cutting auxiliary cavity 9. A plurality of upper through holes 14 are opened on the lower side wall of the printing upper limit frame 4. A plurality of lower through holes 20 are opened on the upper side wall of the cutting auxiliary cavity 9. The lower through holes 20 are located below the upper through holes 14. The puncture needle 19 is located below the lower through holes 20. The inner diameter sizes of the upper through holes 14 and the lower through holes 20 are both larger than the outer diameter size of the puncture needle 19;

[0029] The upper end surface of the sliding plate 18 is parallel to the upper inner wall of the cutting auxiliary cavity 9. After the printing is completed, the electric push rod 17 is used to push the sliding plate 18 and the puncture needle 19 upward. When the upper end surface of the sliding plate 18 abuts against the upper inner wall of the cutting auxiliary cavity 9, the upper end of the puncture needle 19 penetrates through the printing paper 10 and extends into the upper through hole 14. A plurality of puncture needles 19 are used to puncture the printing paper 10, so as to form a tear line on the printing paper 10, which is convenient for tearing off the printed content.

[0030] A driving motor 16 and a driving roller 15 are arranged inside the printing upper limit frame 4. The front and rear ends of the driving roller 15 are respectively rotatably connected to the front and rear inner walls of the printing upper limit frame 4. The driving motor 16 and the driving roller 15 are driven by gears. The driving roller 15 is located on the right side of the thermal printing head 8, and the lower end side wall of the driving roller 15 is close to the upper end surface of the right side wall of the printing bottom frame 1.

[0031] The outer side wall of the driving roller 15 is made of rubber material. The rubber material is used to increase the friction between the driving roller 15 and the printing paper 10, so as to ensure that the printing paper 10 can be smoothly exported under the action of the driving motor 16.

[0032] Both the front and rear inner walls of the placement groove 3 are fixedly connected with abutting springs 21. The adjacent ends of the two abutting springs 21 are fixedly connected with limiting plates 22. The limiting plates 22 are slidably connected with the inner side wall of the placement groove 3. The adjacent side walls of the two limiting plates 22 are rotatably connected with abutting plates 23. The printing paper 10 is arranged inside the two abutting plates 23. The abutting plates 23 are used to ensure that the rolled printing paper 10 can rotate. Under the action of the abutting springs 21, the stability of the rolled printing paper 10 is ensured. By limiting the printing paper 10, the problem that the printing paper 10 shakes in the equipment, causing the edge of the paper to be rough, affecting the appearance and subsequent use, is avoided.

[0033] Two limiting frames 12 are fixedly connected to the upper end of the printing support platform 11. The limiting frames 12 are U-shaped. A limiting roller 13 is arranged inside the limiting frames 12. The front and rear ends of the limiting roller 13 are respectively rotatably connected to the front and rear inner walls of the limiting frames 12. The two limiting frames 12 are respectively located on the left and right sides of the thermal printing head 8. The limiting roller 13 inside the limiting frames 12 is used to limit the printing paper 10, so as to ensure that the printing paper 10 is laid flat on the printing support platform 11 and ensure the normal operation of the thermal printing head 8.

[0034] Working principle: When in use, open the printing upper limit frame 4, place the printing paper 10 between the two abutting plates 23. The abutting plates 23 ensure that the rolled printing paper 10 can rotate, and the abutting spring 21 ensures the stability of the rolled printing paper 10. By limiting the printing paper 10, it is avoided that the printing paper 10 shakes in the device, resulting in rough edges of the paper, which affects the appearance and subsequent use. One end of the printing paper 10 passes through above the printing support platform 11 and extends to the outside of the device along the upper end face of the right side wall of the printing bottom frame 1. The printing paper 10 is located below the two limiting rollers 13. Use the buckle 24 to cooperate with the card slot 25 to close the printing upper limit frame 4. The thermal printing head 8 is located above the printing paper 10. The outer wall of the driving roller 15 abuts against the printing paper 10. Turn on the power switch 7. The device is connected to the mobile phone through the wireless data transmission module and data transmission is carried out. When printing, use the thermal printing head 8 to perform printing operations on the printing paper 10. At the same time, the driving motor 16 drives the driving roller 15 to rotate, and the rotation of the driving roller 15 drives the printing paper 10 to be exported to the outside of the device. When printing is completed, use the electric push rod 17 to push the sliding plate 18 and the puncture needle 19 upward. When the upper end face of the sliding plate 18 abuts against the upper inner wall of the cutting auxiliary cavity 9, the upper end of the puncture needle 19 penetrates the printing paper 10 and extends into the upper through hole 14. Use several puncture needles 19 to puncture the printing paper 10, so as to form a tear line on the printing paper 10, which is convenient for tearing off the printed content, and effectively solves the problem that it is not convenient to tear off the printed works after printing with the printing paper 10 without a tear line, and also avoids the problem of paper jams.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable micro printer, comprising a printing bottom frame (1), characterized in that: A control box (2) is fixedly connected to the left end of the printing bottom frame (1). An equipment power supply (5) and a control module (6) are arranged inside the control box (2). A power switch (7) is arranged on the outer side of the control box (2). A placement groove (3) is arranged in the printing bottom frame (1). The upper end face of the right side wall of the printing bottom frame (1) is arranged in an inclined plane. A printing support platform (11) is arranged inside the printing bottom frame (1). The front and rear ends of the printing support platform (11) are respectively fixedly connected to the inner walls of the front and rear sides of the printing bottom frame (1). The upper end of the left side wall of the printing bottom frame (1) is hinged with a printing upper limit frame (4). A thermal printing head (8) is arranged inside the printing upper limit frame (4). The thermal printing head (8) is located directly above the printing support platform (11). The thermal printing head (8) is electrically connected to the control module (6). Snap fasteners (24) are fixedly connected to the lower ends of the front and rear side walls of the printing upper limit frame (4). Card slots (25) are arranged on the front and rear side walls of the printing bottom frame (1). The card slots (25) are adapted to the snap fasteners (24). A cutting auxiliary cavity (9) is arranged inside the right side wall of the printing bottom frame (1). A cutting auxiliary mechanism is arranged inside the cutting auxiliary cavity (9).

2. The portable micro printer according to claim 1, characterized in that: The cutting auxiliary mechanism includes an electric push rod (17). The upper end of the electric push rod (17) is fixedly connected to a sliding plate (18). The front and rear ends of the sliding plate (18) are respectively slidably connected to the inner walls of the front and rear sides of the cutting auxiliary cavity (9). A puncture needle (19) is fixedly connected to the upper end of the cutting auxiliary cavity (9). A plurality of upper through holes (14) are formed in the lower side wall of the printing upper limit frame (4). A plurality of lower through holes (20) are formed in the upper side wall of the cutting auxiliary cavity (9). The lower through holes (20) are located below the upper through holes (14). The puncture needle (19) is located below the lower through holes (20). The inner diameter sizes of the upper through holes (14) and the lower through holes (20) are both larger than the outer diameter size of the puncture needle (19).

3. The portable micro printer according to claim 2, wherein: The upper end face of the sliding plate (18) is parallel to the inner wall on the upper side of the cutting auxiliary cavity (9).

4. A portable micro printer according to claim 1, characterized in that: A driving motor (16) and a driving roller (15) are arranged inside the printing upper limit frame (4). The front and rear ends of the driving roller (15) are respectively rotatably connected to the inner walls of the front and rear sides of the printing upper limit frame (4). The driving motor (16) and the driving roller (15) are in gear transmission. The driving roller (15) is located on the right side of the thermal printing head (8). The lower end side wall of the driving roller (15) is close to the upper end face of the right side wall of the printing bottom frame (1).

5. A portable micro printer according to claim 4, characterized in that: The outer side wall of the driving roller (15) is made of rubber material.

6. A portable micro printer according to claim 1, characterized in that: Abuttment springs (21) are fixedly connected to the inner walls of the front and rear sides of the placement groove (3). The adjacent ends of the two abutment springs (21) are fixedly connected to a limiting plate (22). The limiting plate (22) is slidably connected to the inner side wall of the placement groove (3). Abutment plates (23) are rotatably connected to the adjacent side walls of the two limiting plates (22). Printing paper (10) is arranged inside the two abutment plates (23).

7. A portable micro printer according to claim 1, characterized in that: The upper end of the printing support platform (11) is fixedly connected with two limiting frames (12). The limiting frames (12) are U-shaped. A limiting roller (13) is arranged inside the limiting frames (12). The front and rear ends of the limiting roller (13) are respectively rotatably connected with the inner walls of the front and rear sides of the limiting frames (12). The two limiting frames (12) are respectively located on the left and right sides of the thermal printing head (8).

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