CN216033255U

CN216033255U - Press fit structure of thermal printer

Info

Publication number: CN216033255U
Application number: CN202122007816.5U
Authority: CN
Inventors: 余君
Original assignee: Shanghai Paida Electronic Technology Co ltd
Current assignee: Guangzhou Jinfeng Paper Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-15
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a pressing structure of a thermal printer, which comprises a base and a cover, wherein the base is hinged with the cover, a square groove is formed in the outer wall of one side of the base, a moving assembly is arranged in the square groove, a fixed plate and a telescopic rod are respectively and fixedly arranged in the cover, the fixed plate is positioned below the telescopic rod, a mounting groove is formed in the outer wall of one side of the fixed plate, a flattening assembly is arranged in the mounting groove, a first spring is sleeved on the side wall of the telescopic rod, one end of the telescopic rod is connected with a U-shaped fixed plate, a mounting plate is arranged on one side of the U-shaped fixed plate, which is far away from the telescopic rod, a connecting buckle is arranged on the outer wall of one side of the mounting plate, the pressure of a thermal sensitive sheet can be uniformly distributed through the arranged telescopic rod, the first spring, the U-shaped fixed plate, the mounting plate and the connecting buckle, so that the heating area of printing paper is uniform, and the phenomenon of unclear printing is avoided, effectively reducing the waste of printing paper.

Description

Press fit structure of thermal printer

Technical Field

The utility model relates to the technical field of thermal printers, in particular to a pressing structure of a thermal printer.

Background

The thermal printer has a working principle that a semiconductor heating element is arranged on a printing head, and the printing head can print required patterns after being heated and contacting thermal printing paper, and the principle of the thermal printer is similar to that of a thermal fax machine. The image is generated by heating to cause a chemical reaction in the film.

The existing thermal printer is easy to cause the phenomenon that the heating area of printing paper is not uniform and the printing paper is unclear because the printing head cannot be in complete contact with the printing paper due to uneven pressure in the using process, and simultaneously, because the existing thermal printer is generally coiled printing paper, the printing paper is bent before the printing paper is printed, and the phenomenon of paper jam is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressing structure of a thermal printer, which aims to solve the problems of unclear printing and easy occurrence of paper jam caused by uneven pressure in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a pressing structure of a thermal printer comprises a base and a cover, wherein the base is hinged with the cover, a square groove is arranged on the outer wall of one side of the machine base, a moving component is arranged in the square groove, a fixed plate and a telescopic rod are respectively and fixedly arranged in the machine cover, the fixed plate is positioned below the telescopic rod, an installation groove is arranged on the outer wall of one side of the fixed plate, a flattening component is arranged in the mounting groove, a first spring is sleeved on the side wall of the telescopic rod, one end of the telescopic rod is connected with a U-shaped fixing plate, one side of the U-shaped fixing plate, which is far away from the telescopic rod, is provided with a mounting plate, the outer wall of one side of the mounting plate is provided with a connecting buckle, and the mounting plate is hinged with the U-shaped fixing plate through the connecting buckle, and a thermosensitive plate is arranged on one side, far away from the connecting buckle, of the mounting plate.

Preferably, the movable assembly comprises a motor, the output end of the motor is connected with a driving gear, a driven gear is installed on the inner wall of one side of the base, the driving gear is connected with the driven gear in a meshed mode, and a rubber roller is installed on one side wall of the driven gear.

Preferably, the subassembly that flattens includes first compression roller and second spring, the fixed block is installed to the one end of second spring, install the second compression roller on a lateral wall of fixed block, just first compression roller is located on a lateral wall of frame.

Preferably, a clamping groove is formed in one side wall of the machine base, and the discharging roller is clamped inside the clamping groove.

Preferably, the side wall of the discharging roller is provided with a limiting disc, and the limiting disc is movably connected with the discharging roller.

Preferably, the top outer wall of the machine base is provided with a limiting groove, a limiting plate is arranged in the limiting groove, and the limiting plate is L-shaped.

The utility model has the technical effects and advantages that:

1. through the telescopic link, first spring, U-shaped fixed plate, mounting panel and the connector link that set up for the pressure of temperature sensing piece can even distribution, thereby makes to beat printing paper heated area even, can not appear printing the phenomenon of unclear, effectively must reduce the waste of beating printing paper.

2. Through second spring, fixed block, second compression roller and the first compression roller that sets up for beat printing paper before printing, can flatten, then print again, thereby improved the printing quality, and be difficult to the phenomenon that the card paper appears.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of a square groove according to the present invention.

Fig. 3 is a schematic view of the internal structure of the cover of the present invention.

Fig. 4 is an enlarged schematic view of the present invention at a.

FIG. 5 is a schematic structural view of the flattening assembly of the present invention.

In the figure: 1. a machine base; 2. a machine cover; 3. a card slot; 4. a discharge roller; 5. a limiting disc; 6. a square groove; 7. a limiting plate; 8. a first press roll; 9. a moving assembly; 91. a motor; 92. a driving gear; 93. a driven gear; 94. a rubber roller; 10. a fixing plate; 11. a flattening assembly; 1101. a second spring; 1102. a fixed block; 1103. a second press roll; 12. mounting grooves; 13. a heat-sensitive sheet; 14. a telescopic rod; 15. a first spring; 16. a U-shaped fixing plate; 17. mounting a plate; 18. a connecting buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a pressing structure of a thermal printer as shown in figures 1-5, which comprises a machine base 1 and a cover 2, wherein the machine base 1 is hinged with the cover 2, a square groove 6 is arranged on the outer wall of one side of the machine base 1, a moving component 9 is arranged inside the square groove 6, a fixed plate 10 and a telescopic rod 14 are respectively and fixedly arranged inside the cover 2, the fixed plate 10 is positioned below the telescopic rod 14, an installation groove 12 is arranged on the outer wall of one side of the fixed plate 10, a flattening component 11 is arranged inside the installation groove 12, a first spring 15 is sleeved on the side wall of the telescopic rod 14, one end of the telescopic rod 14 is connected with a U-shaped fixed plate 16, a mounting plate 17 is arranged on one side of the U-shaped fixed plate 16 far away from the telescopic rod 14, a connecting buckle 18 is arranged on the outer wall of one side of the mounting plate 17, and the mounting plate 17 is hinged with the U-shaped fixed plate 16 through the connecting buckle 18, the mounting panel 17 is kept away from one side of connector link 18 and is installed heat-sensitive piece 13, drives U-shaped fixed plate 16 that 14 one end of telescopic link is connected through first spring 15, makes and pushes down through connector link 18 and U-shaped fixed plate 16 articulated mounting panel 17 mutually to make heat-sensitive piece 13 can be even press on beating printing paper, avoid beating that the printing paper heating area is inhomogeneous, appear to print unclear phenomenon.

In this embodiment, the movable assembly 9 includes a motor 91, and the output of motor 91 is connected with a driving gear 92, install driven gear 93 on the inner wall of one side of frame 1, and the meshing is connected between driving gear 92 and the driven gear 93, install the rubber roll 94 on a side wall of driven gear 93, drive driving gear 92 through motor 91 and rotate, make driving gear 92 drive driven gear 93, thereby make driven gear 93 drive rubber roll 94 rotate, conveniently drive printing paper and remove the output.

In this embodiment, the flattening assembly 11 includes a first pressing roller 8 and a second spring 1101, a fixing block 1102 is installed at one end of the second spring 1101, a second pressing roller 1103 is installed on a side wall of the fixing block 1102, the first pressing roller 8 is located on a side wall of the base 1, and the fixing block 1102 is driven to be pressed down through the second spring 1101, so that the second pressing roller 1103 is matched with the first pressing roller 8 to flatten printing paper, and paper jam is prevented from occurring.

In this embodiment, a clamping groove 3 is formed in one side wall of the base 1, and a discharging roller 4 is clamped inside the clamping groove 3, so that rolled printing paper can be conveyed conveniently.

In this embodiment, be provided with spacing dish 5 on the lateral wall of blowing roller 4, and swing joint between spacing dish 5 and the blowing roller 4 conveniently carries on spacingly to printing the scroll, prevents to beat the skew heat-sensitive piece 13 of printing paper.

In this embodiment, set up the spacing groove on the top outer wall of frame 1, the inside of spacing groove is provided with limiting plate 7, and limiting plate 7's shape is L shape, is favorable to carrying on spacingly to beating printing paper in the transport, avoids influencing the printing effect.

This practical theory of operation: the utility model relates to a pressing structure of a thermal printer, which is characterized in that when the pressing structure is used, a discharging roller 4 is taken out from a clamping groove 3, then coiled printing paper is sleeved on the discharging roller 4, then the discharging roller 4 is clamped on a base 1 through the clamping groove 3, then one end of the printing paper passes through a limiting plate 7 and is placed on a rubber roller 94, then a cover 2 is buckled on the base 1, then a U-shaped fixing plate 16 connected with one end of a telescopic rod 14 is driven by a first spring 15, and a mounting plate 17 hinged with the U-shaped fixing plate 16 through a connecting buckle 18 is pressed downwards, so that a thermal sensitive sheet 13 can be uniformly pressed on the printing paper, and the phenomena that the printing paper is heated unevenly and is unclear are avoided.

Drive driving gear 92 through motor 91 for driving gear 92 drives driven gear 93, thereby makes rubber roll 94 drive printing paper and remove the output, drives fixed block 1102 through the inside second spring 1101 that sets up of mounting groove 12 when printing and pushes down, makes second compression roller 1103 cooperate first compression roller 8, flattens the printing paper that moves, thereby makes the phenomenon of the difficult appearance card paper of printing paper, has improved the quality of printing simultaneously.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a thermal printer's pressfitting structure, includes frame (1) and cover (2), its characterized in that: the machine base (1) is hinged with the machine cover (2), a square groove (6) is formed in the outer wall of one side of the machine base (1), a moving assembly (9) is arranged inside the square groove (6), a fixing plate (10) and a telescopic rod (14) are fixedly arranged inside the machine cover (2) respectively, the fixing plate (10) is located below the telescopic rod (14), a mounting groove (12) is formed in the outer wall of one side of the fixing plate (10), and a flattening assembly (11) is arranged inside the mounting groove (12);

the cover is equipped with first spring (15) on the lateral wall of telescopic link (14), the one end of telescopic link (14) is connected with U-shaped fixed plate (16), keep away from U-shaped fixed plate (16) one side of telescopic link (14) is provided with mounting panel (17), install connector link (18) on the one side outer wall of mounting panel (17), just mounting panel (17) pass through connector link (18) with U-shaped fixed plate (16) are articulated mutually, mounting panel (17) are kept away from heat-sensitive piece (13) are installed to one side of connector link (18).

2. A thermal printer laminating structure according to claim 1, wherein: remove subassembly (9) and include motor (91), just the output of motor (91) is connected with driving gear (92), install driven gear (93) on the inner wall of one side of frame (1), just driving gear (92) with the meshing is connected between driven gear (93), install rubber roll (94) on a lateral wall of driven gear (93).

3. A thermal printer laminating structure according to claim 1, wherein: flattening subassembly (11) include first compression roller (8) and second spring (1101), fixed block (1102) are installed to the one end of second spring (1101), a side wall mounting of fixed block (1102) has second compression roller (1103), just first compression roller (8) are located on the lateral wall of frame (1).

4. A thermal printer laminating structure according to claim 1, wherein: a clamping groove (3) is formed in one side wall of the machine base (1), and a discharging roller (4) is clamped inside the clamping groove (3).

5. A thermal printer laminating structure according to claim 4, wherein: the side wall of the discharging roller (4) is provided with a limiting disc (5), and the limiting disc (5) is movably connected with the discharging roller (4).

6. A thermal printer laminating structure according to claim 1, wherein: the engine base is characterized in that a limiting groove is formed in the outer wall of the top of the engine base (1), a limiting plate (7) is arranged in the limiting groove, and the limiting plate (7) is L-shaped.