CN213973236U

CN213973236U - Thermal printer

Info

Publication number: CN213973236U
Application number: CN202022633414.1U
Authority: CN
Inventors: 罗磊; 申小丹
Original assignee: Zhuhai Xinye Electronic Technology Co Ltd; Zhuhai Hengsheng Barcode Equipment Co Ltd
Current assignee: Zhuhai Xinye Electronic Technology Co Ltd; Zhuhai Hengsheng Barcode Equipment Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-08-17
Anticipated expiration: 2030-11-13

Abstract

The utility model relates to the technical field of printing, and discloses a thermal printer, which comprises a base, an upper cover, a paper pressing shaft and a printing head, wherein the base is rotatably connected with a rotating shaft, the base is also provided with a paper guide structure, the paper pressing shaft is rotatably connected with the upper cover, the upper cover is connected with the base in a turnover manner, the upper cover is also provided with a mounting groove, the two ends of the mounting groove are respectively provided with a first stop component and a second stop component, and the first stop component and the second stop component are distributed along the length direction of the mounting groove; the two ends of the printing head are respectively provided with a first clamping assembly and a second clamping assembly, the first clamping assembly can be inserted between the mounting groove and the first stop assembly, and the second clamping assembly can be inserted between the mounting groove and the second stop assembly. The printer can quickly disassemble and assemble the printing head, does not cause abrasion to the upper cover of the printer, and prolongs the service life of the printer; when printing, the printing paper is not easy to generate folds, so that the printing quality can be improved, and the noise during high-speed printing is reduced.

Description

Thermal printer

Technical Field

The utility model relates to a print technical field, concretely relates to thermal printer.

Background

The thermal printer is fast in printing speed, convenient to use has received more and more consumers' welcome, and current thermal printer also exposes some problems slowly, for example, at the in-process of printing at a high speed, the tension of the printing paper that is located between pivot and the paper guide structure is less, takes place shake and dislocation easily, beats easily the fold of printing paper, leads to printing process to produce great noise, influences the quality of printing. Under the condition of long-term high-speed printing of some printers, the printing head is easy to wear, the printing head needs to be replaced by various disassembling tools, the working efficiency is low, the upper cover of the printer is easy to wear and damage due to repeated disassembling and assembling of the printing head, and the service life of the printer is shortened.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that prior art exists, the utility model provides a thermal printer can prevent to beat printing paper and take place the fold, improves and prints the quality to can prevent that the upper cover from receiving destruction, improve the life of printer.

The utility model provides a technical scheme that its technical problem adopted is: a thermal printer comprises a base, a rotating shaft is rotatably connected with the base, a paper guide structure is further arranged on the base, and printing paper is wound on the rotating shaft in a sleeved mode and penetrates through the lower portion of the paper guide structure; the upper cover is connected with the base in a turnover mode and provided with a mounting groove, a first stop component and a second stop component are arranged at two ends of the mounting groove respectively and distributed along the length direction of the mounting groove, and the distance between the first stop component and the second stop component is a first distance; the paper pressing shaft is rotatably connected with the upper cover, the paper pressing shaft is parallel to the rotating shaft, and when the upper cover is buckled on the base, the paper pressing shaft is positioned between the rotating shaft and the paper guide structure and can downwards abut against printing paper; print head, through spring coupling the mounting groove, both ends are equipped with first chucking subassembly and second chucking subassembly respectively, first chucking subassembly can be inserted the mounting groove with between the first backstop subassembly, second chucking subassembly can be inserted the mounting groove with between the second backstop subassembly, first chucking subassembly with distance between the second chucking subassembly is the second distance, the second distance is less than the length of mounting groove is greater than first distance, the width of printing head is less than the width of mounting groove.

The mounting groove of the thermal printer is rectangular, the first stopping assembly comprises a first stopping block and a second stopping block, the second stopping assembly comprises a third stopping block and a fourth stopping block, and the first stopping block, the second stopping block, the third stopping block and the fourth stopping block are distributed in the upper ends of the four corners of the mounting groove in an array mode.

In the thermal printer, the lower end of the printing head is rectangular, the first clamping assembly comprises the first clamping block and the second clamping block, the second clamping assembly comprises the third clamping block and the fourth clamping block, and the first clamping block, the second clamping block, the third clamping block and the fourth clamping block are distributed in four corners of the lower end of the printing head in an array mode.

In the thermal printer, the paper guide structure comprises two paper guide blocks, the distribution direction of the two paper guide blocks is perpendicular to the passing direction of the printing paper, the lower end of the paper guide block is provided with the cambered surface structure, and the printing paper can pass below the cambered surface structure.

In the thermal printer, the base is provided with the baffle, the baffle is positioned at the outer side of the paper guide block, and the rotating shaft is rotatably connected with the baffle.

According to the thermal printer, the base is further provided with the lower paper bin, the upper cover is provided with the upper paper bin, and the lower paper bin and the upper paper bin are both used for storing printing paper.

In the thermal printer, the upper cover is provided with the hook, one end of the hook is rotatably connected with the upper cover, and the other end of the hook can be hooked on the base.

The thermal printer further comprises a lower cover arranged below the base, and the lower cover is provided with a heat dissipation assembly.

In the thermal printer, the upper cover is provided with the window.

In the thermal printer, the upper cover is further provided with a plurality of keys.

The utility model discloses a thermal printer has following beneficial effect at least: when the printing head is installed, the first clamping assembly is inserted between the installation groove and the first stopping assembly, then the printing head is pressed towards the installation groove, the printing head is rotated by an angle in the installation groove, the length direction of the printing head is staggered with the length direction of the installation groove by a certain angle, so that the second clamping assembly is inserted between the installation groove and the second stopping assembly, and then the printing head is rotated by the same angle in the opposite direction; when printing, the pivot is pressed the paper axle downwards by pressing with leading the beat paper between the paper structure and is supported the pressure for beat paper that this department has certain tension, beat paper and be difficult to take place shake and dislocation, be difficult for producing the fold, can improve the quality of printing, noise when reducing high-speed printing.

Drawings

The invention will be further described with reference to the following figures and examples, in which:

fig. 1 is one of the overall structural diagrams of the printer according to the embodiment of the present invention (the upper cover is opened);

fig. 2 is a second schematic view of the overall structure of the printer according to the embodiment of the present invention (the upper cover is fastened);

FIG. 3 is a cross-sectional view of the printer shown in FIG. 2;

fig. 4 is a schematic structural diagram of a printhead according to an embodiment of the present invention;

FIG. 5 is a bottom view of the printhead shown in FIG. 4;

fig. 6 is a diagram illustrating an assembly relationship between the print head and the upper cover according to an embodiment of the present invention.

In the drawings: 100 bases, 110 rotating shafts, 120 paper pressing shafts, 130 paper guide blocks, 140 baffle plates, 150 lower paper bins, 200 upper covers, 210 mounting grooves, 220 first stopping components, 221 first stopping blocks, 222 second stopping blocks, 230 second stopping components, 231 third stopping blocks, 232 fourth stopping blocks, 240 upper paper bins, 250 hooks, 260 windows, 270 buttons, 300 printing heads, 310 first clamping components, 311 first clamping blocks, 312 second clamping blocks, 320 second clamping components, 321 third clamping blocks, 322 fourth clamping blocks, 400 springs, 500 lower covers, 510 heat dissipation components and 600 printing paper.

Detailed Description

The embodiment of the present invention is described in detail below, referring to fig. 1 to 3, the present invention provides a thermal printer, including a base 100, an upper cover 200, a platen 120 and a printing head 300, wherein the base 100 is rotatably connected with a rotating shaft 110, the base 100 is further provided with a paper guide structure, printing paper 600 is wound around the rotating shaft 110 and can pass through the lower part of the paper guide structure, the platen 120 is rotatably connected with the upper cover 200, and the platen 120 and the rotating shaft 110 are parallel to each other; the upper cover 200 is connected to the base 100 in a turning manner, and when the upper cover 200 is fastened to the base 100, the paper pressing shaft 120 is located between the rotating shaft 110 and the paper guide structure and presses the printing paper 600 downwards; referring to fig. 4 to 6, the upper cover 200 is further provided with a mounting groove 210, two ends of the mounting groove 210 are respectively provided with a first stopping component 220 and a second stopping component 230, the first stopping component 220 and the second stopping component 230 are distributed along the length direction of the mounting groove 210, and the distance between the first stopping component 220 and the second stopping component 230 is a first distance; the printing head 300 is connected to the mounting groove 210 by a spring 400, a first clamping assembly 310 and a second clamping assembly 320 are respectively arranged at two ends of the printing head 300, the first clamping assembly 310 can be inserted between the mounting groove 210 and the first stopping assembly 220, the second clamping assembly 320 can be inserted between the mounting groove 210 and the second stopping assembly 230, the distance between the first clamping assembly 310 and the second clamping assembly 320 is a second distance, the second distance is smaller than the length of the mounting groove 210 and larger than the first distance, and the width of the printing head 300 is smaller than the width of the mounting groove 210.

When the printing head 300 is installed, the first clamping assembly 310 is firstly inserted between the installation groove 210 and the first stopping assembly 220, then the printing head 300 is pressed towards the installation groove 210, the printing head 300 is rotated by a certain angle in the installation groove 210, so that the length direction of the printing head 300 is staggered with the length direction of the installation groove 210 by a certain angle, so that the second clamping assembly 320 is inserted between the installation groove 210 and the second stopping assembly 230, then the printing head 300 is rotated by the same angle in the opposite direction, under the action of the spring 400, the first clamping assembly 310 and the second clamping assembly 320 are pressed on the first stopping assembly 220 and the second stopping assembly 230, so that the printing head 300 is difficult to deviate or separate from the installation groove 210, therefore, the printer can quickly disassemble and assemble the printing head 300 without using disassembling tools, the working efficiency is improved, and the upper cover 200 of the printer is not abraded, the service life of the printer is prolonged; during printing, the printing paper 600 between the rotating shaft 110 and the paper guide structure is downwards pressed by the paper pressing shaft 120, so that the printing paper 600 at the position has certain tension, the printing paper 600 is not easy to shake and misplace, and is not easy to generate folds, the printing quality can be improved, and the noise during high-speed printing is reduced.

Referring to fig. 1 to 3, in some embodiments, the base 100 is further provided with a lower paper bin 150, the upper cover 200 is provided with an upper paper bin 240, the lower paper bin 150 and the upper paper bin 240 are both used for storing printing paper 600, and the printing paper 600 is wound around the rotating shaft 110 with a certain gap between the lowest point of the printing paper 600 and the lowest point of the lower paper bin 150 to increase the heat dissipation effect of the printer. In some embodiments, the paper guide structure includes two paper guide blocks 130, the two paper guide blocks 130 are distributed in a direction perpendicular to a passing direction of the printing paper 600, a lower end of the paper guide block 130 has an arc structure, the printing paper 600 can pass through the arc structure, and the arc structure at the lower end of the paper guide block 130 can facilitate paper guide and can prevent the printing paper 600 from being scratched. Further, the base 100 is provided with a baffle 140, the baffle 140 is located outside the paper guide block 130, the rotating shaft 110 is rotatably connected with the baffle 140, and the baffle 140 can block two ends of the printing paper 600, so that the printing paper 600 is prevented from being shifted along the axial direction, and the printing paper 600 is prevented from being wrinkled.

With continued reference to fig. 1 to 3, the upper cover 200 is provided with a hook 250, one end of the hook 250 is rotatably connected to the upper cover 200, the other end of the hook 250 can be hooked on the base 100, when the upper cover 200 is fastened, the hook 250 is inserted into the base 100 and hooked on the base 100, so that the printer can work normally, and when the upper cover 200 needs to be opened, the hook 250 is shifted to separate the hook 250 from the base 100, which is simple in structure and convenient to operate. In some embodiments, the printer further includes a lower cover 500 installed under the base 100, and the lower cover 500 is provided with a heat dissipation assembly 510 to facilitate heat dissipation of the printer. In some embodiments, the cover 200 is provided with a window 260 and a plurality of buttons 270 to facilitate the printing operation by the consumer.

Referring to fig. 4 to 6, in some embodiments, the mounting groove 210 is rectangular, the first stopping assembly 220 includes a first stopping block 221 and a second stopping block 222, the second stopping assembly 230 includes a third stopping block 231 and a fourth stopping block 232, and the first stopping block 221, the second stopping block 222, the third stopping block 231 and the fourth stopping block 232 are distributed at the upper ends of the four corners of the mounting groove 210 in an array. The lower end of the print head 300 is rectangular, the first clamping assembly 310 includes a first clamping block 311 and a second clamping block 312, the second clamping assembly 320 includes a third clamping block 321 and a fourth clamping block 322, and the first clamping block 311, the second clamping block 312, the third clamping block 321 and the fourth clamping block 322 are distributed at four corners of the lower end of the print head 300 in an array manner. The distance between the first stopper 221 and the third stopper 231 is a first distance, and the distance between the first latch 311 and the second latch 312 is a second distance. The distance between the first stopper 221 and the second stopper 222 is a third distance, the distance between the first latch 311 and the third latch 321 is a fourth distance, the fourth distance is smaller than the width of the mounting groove 210, and the second distance is greater than the third distance, so that the first stopper 221, the second stopper 222, the third stopper 231, and the fourth stopper 232 can effectively stop the first latch 311, the second latch 312, the third latch 321, and the fourth latch 322.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A thermal printer is characterized by comprising

The printing paper feeding device comprises a base (100), a rotating shaft (110) is rotatably connected to the base (100), a paper guide structure is further arranged on the base (100), and printing paper (600) is wound on the rotating shaft (110) in a sleeved mode and penetrates through the lower portion of the paper guide structure;

the upper cover (200) is connected with the base (100) in an overturning manner, the upper cover (200) is provided with a mounting groove (210), two ends of the mounting groove (210) are respectively provided with a first stopping component (220) and a second stopping component (230), the first stopping component (220) and the second stopping component (230) are distributed along the length direction of the mounting groove (210), and the distance between the first stopping component (220) and the second stopping component (230) is a first distance;

the paper pressing shaft (120) is rotatably connected with the upper cover (200), the paper pressing shaft (120) is parallel to the rotating shaft (110), and when the upper cover (200) is buckled on the base (100), the paper pressing shaft (120) is positioned between the rotating shaft (110) and the paper guide structure and can downwards press printing paper (600);

print head (300), connect through spring (400) mounting groove (210), both ends are equipped with first chucking subassembly (310) and second chucking subassembly (320) respectively, first chucking subassembly (310) can be inserted mounting groove (210) with between first backstop subassembly (220), second chucking subassembly (320) can be inserted mounting groove (210) with between second backstop subassembly (230), first chucking subassembly (310) with distance between second chucking subassembly (320) is the second distance, the second distance is less than the length of mounting groove (210) and is greater than first distance, the width of print head (300) is less than the width of mounting groove (210).

2. The thermal printer according to claim 1, wherein the mounting groove (210) is rectangular, the first stopper assembly (220) comprises a first stopper (221) and a second stopper (222), the second stopper assembly (230) comprises a third stopper (231) and a fourth stopper (232), and the first stopper (221), the second stopper (222), the third stopper (231), and the fourth stopper (232) are distributed in an array at upper ends of four corners of the mounting groove (210).

3. The thermal printer according to claim 2, wherein the lower end of the print head (300) is rectangular, the first clamping assembly (310) comprises a first clamping block (311) and a second clamping block (312), the second clamping assembly (320) comprises a third clamping block (321) and a fourth clamping block (322), and the first clamping block (311), the second clamping block (312), the third clamping block (321) and the fourth clamping block (322) are distributed at four corners of the lower end of the print head (300) in an array manner.

4. The thermal printer according to claim 1, wherein the paper guide structure comprises two paper guide blocks (130), the two paper guide blocks (130) are distributed in a direction perpendicular to a passing direction of the printing paper (600), the lower end of the paper guide block (130) has an arc structure, and the printing paper (600) can pass below the arc structure.

5. The thermal printer according to claim 4, wherein a baffle (140) is disposed on the base (100), the baffle (140) is located outside the paper guide block (130), and the rotating shaft (110) is rotatably connected to the baffle (140).

6. The thermal printer according to claim 1, wherein a lower paper bin (150) is further disposed on the base (100), the upper cover (200) is provided with an upper paper bin (240), and the lower paper bin (150) and the upper paper bin (240) are used for storing printing paper (600).

7. The thermal printer according to claim 1, wherein the upper cover (200) is provided with a hook (250), one end of the hook (250) is rotatably connected with the upper cover (200), and the other end can be hooked on the base (100).

8. The thermal printer according to claim 1, further comprising a lower cover (500) mounted below the base (100), the lower cover (500) being provided with a heat dissipating assembly (510).

9. Thermal printer according to claim 1, characterised in that said cover (200) is provided with a window (260).

10. The thermal printer according to claim 1, wherein the upper cover (200) is further provided with a plurality of keys (270).