Ink core heating device of ink-jet printer

Abstract

The utility model relates to an ink core heating device of an ink-jet printer, which comprises an ink tank, a mounting opening is arranged at the bottom of the ink tank, a heater is fixedly mounted on the mounting opening, a connecting pipe penetrating out of the mounting opening is arranged on the heater, a wire outlet is arranged in the connecting pipe, the heater comprises a base, an upper cover and a heating plate, an installation cavity with an upward opening is formed in the base, the heating piece is installed in the installation cavity, the upper cover fixedly covers the upper portion of the installation cavity of the base and covers the heating piece, a control cavity communicated with the wire outlet is further formed in the position, on the lower side of the installation cavity, of the base, and a temperature maintaining switch electrically connected with the heating piece is arranged in the control cavity. According to the utility model, the ink core is heated by the heater, so that the temperature of the ink is close to the temperature of the nozzle, and the adjusted viscosity is close to the use temperature, thereby being beneficial to improving the printing quality, widening the working environment temperature of the ink-jet printer, expanding the use environment of the ink-jet printer from the original + 10-+ 40 DEG C to-10-+ 40 DEG C, and greatly widening the use range.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet printer accessories, in particular to an ink core heating device for an inkjet printer. Background Art

[0002] The printing quality of small character inkjet printers has very high requirements on the viscosity and concentration of ink. Usually, small character inkjet printers will set up a heating thermostat at the nozzle, measure the viscosity in the ink tank regularly, and add diluent according to the viscosity to keep the ink viscosity stable. However, the temperature of the ink in the ink tank of the ink core changes with the ambient temperature, and the viscosity and concentration vary greatly at different temperatures, which affects the printing quality. Therefore, it is necessary to heat the ink in the ink tank of the ink core to make the ink close to the temperature at the nozzle and adjust the viscosity close to the use temperature. This will help improve the printing quality and widen the working environment temperature of the inkjet printer. Utility Model Content

[0003] The utility model provides an ink core heating device for a coding machine, which solves the above problems existing in the use process of the prior art.

[0004] The technical solution of the utility model is implemented as follows: a device for heating the ink core of an inkjet printer comprises an ink tank, a mounting opening is provided at the bottom of the ink tank, a heater is fixedly installed on the mounting opening, a connecting pipe passing through the mounting opening is provided on the heater, and a wire outlet is provided in the connecting pipe.

[0005] Preferably, the heater includes a base, an upper cover and a heating plate. The base is disc-shaped, and an installation cavity with an opening facing upward is opened in the base. The heating plate is installed in the installation cavity. The upper cover is fixedly covered over the installation cavity of the base and covers the heating plate.

[0006] Preferably, the base is further provided with a control cavity communicated with the wire outlet at the lower side of the installation cavity, and a thermal insulation switch electrically connected to the heating plate is provided in the control cavity.

[0007] Preferably, the upper cover is pressed tightly against the heating plate.

[0008] Preferably, the connecting tube is fixedly connected to the base, and the connecting tube is provided with a support plate which abuts against the lower end surface of the base, and the support plate is provided with a sealing ring for abutting against the bottom of the ink tank, and the sealing ring surrounds the outer periphery of the installation port.

[0009] Preferably, the connecting pipe is threadedly connected with a fixing nut at the lower side of the installation opening.

[0010] Preferably, an annular groove is formed on the side wall of the connecting pipe at the position of the installation opening, a sealing ring is provided in the annular groove, and the sealing ring is interference fit in the installation opening.

[0011] In summary, the beneficial effects of the present invention are:

[0012] 1. The utility model heats the ink core through a heater, which can make the ink close to the temperature at the nozzle and adjust the viscosity close to the use temperature, which helps to improve the printing quality and widen the working environment temperature of the inkjet printer, so that the use environment of the inkjet printer is expanded from the original +10~+40 degrees to -10~+40 degrees, greatly improving the use range.

[0013] 2. The heater includes a disc-shaped base, a heating plate in the installation cavity of the base, and the installation cavity is sealed by an upper cover. The heating plate can quickly heat the ink tank. In addition, the base is also provided with a thermal insulation switch electrically connected to the heating plate in the control cavity. The thermal insulation switch can keep the heating plate at a constant temperature. The wires of the thermal insulation switch can be connected from the outlet of the connecting pipe. The above structure is reasonably and reliably arranged, and the heating effect is stable.

[0014] 3. The connecting pipe can effectively seal the installation port through the setting of the sealing ring on the plate to prevent ink leakage from the installation port, and the entire heater is also fixed by fixing the fixing nut and the connecting pipe. This structure is convenient for installation and disassembly.

[0015] 4. The installation port can be better sealed by setting a sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the ink core assembly of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of structural explosion;

[0019] Figure 3 It is a top view of the ink core with the ink tank and heater of the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0021] Figure 5 for Figure 4 A partial enlarged schematic diagram of the bottom of the middle ink tank and the heater part;

[0022] Figure 6 It is a structural schematic diagram of the heater in the utility model;

[0023] Figure 7 It is a schematic diagram of the explosion structure of the heater in the utility model.

[0024] In the figure: 1. ink tank; 11. installation port; 2. heater; 21. base; 211. installation cavity; 212. control cavity; 22. upper cover; 23. heating plate; 24. thermal insulation switch; 3. connecting pipe; 31. outlet port; 32. abutment plate; 33. sealing ring; 34. annular groove; 4. fixing nut; 5. sealing ring; 6. ink core; 7. ink core plate; 8. temperature sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the utility model Figure 1-7 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] like Figures 1 to 7 As shown, the utility model discloses an ink core heating device for a printer, which includes an ink tank 1, the ink tank 1 is located in an ink core 6, the ink tank 1 is used to place ink, the ink core 6 is provided with an ink core plate 7 and a temperature sensor 8 inserted into the ink tank 1, a mounting port 11 is provided at the bottom of the ink tank 1, and a heater 2 is fixedly installed on the mounting port 11, the heater 2 is provided with a connecting pipe 3 passing through the mounting port 11, and a wire outlet 31 is provided in the connecting pipe 3.

[0028] Specifically, the heater 2 includes a base 21, an upper cover 22 and a heating plate 23. The base 21 is disc-shaped, and an installation cavity 211 with an opening facing upward is opened in the base 21, wherein the heating plate 23 is installed in the installation cavity 211, and the upper cover 22 is fixedly covered on the installation cavity 211 of the base 21 and covers the heating plate 23. The upper cover 22 is interference fit on the installation cavity 211 to form a seal for the installation cavity 211 to prevent ink from entering the installation cavity 211.

[0029] In addition, the base 21 is also provided with a control cavity 212 on the lower side of the installation cavity 211 which is communicated with the wire outlet 31. A thermal insulation switch 24 electrically connected to the heating plate 23 is provided in the control cavity 212. The wires on the thermal insulation switch 24 can be connected from the wire outlet 31 of the connecting tube 3.

[0030] The upper cover 22 is pressed tightly on the heating sheet 23, and the heating sheet 23 is made of polycrystalline diamond. When the utility model is working, current passes through the polycrystalline diamond heating element to generate heat, and then transfers the heat to the upper cover 22 and the base, and the upper cover 22 transfers it to the ink. The thermal protection switch 24 can cut off the power supply when the heating sheet 23 is overheated, so that the heating sheet 23 maintains a constant temperature. Therefore, the utility model can heat the ink to a temperature close to the temperature at the nozzle and adjust the viscosity to be close to the use temperature, which helps to improve the printing quality and widen the working environment temperature of the inkjet printer, so that the use environment of the inkjet printer is expanded from the original +10~+40 degrees to -10~+40 degrees, greatly improving the scope of use.

[0031] The specific structure of the heater 2 fixedly connected to the mounting port 11 is as follows: the connecting pipe 3 is fixedly connected to the base 21, and a butt plate 32 is provided on the connecting pipe 3 to abut against the lower end surface of the base 21, and a sealing ring 33 for abutting against the bottom of the ink tank 1 is provided on the butt plate 32. The sealing ring 33 surrounds the outer periphery of the mounting port 11. In addition, the connecting pipe 3 is also threadedly connected to a fixing nut 4 at the lower side of the mounting port 11. The bottom of the ink tank 1 is clamped by the fixing nut 4 and the sealing ring 33, so that the heater 2 can be fixed on the mounting port 11, and it is very convenient to install and disassemble. The sealing ring 33 and the butt plate 32 can lift the lower side of the base 21 to avoid direct contact between the lower side of the base 21 and the bottom of the ink tank 1. This can facilitate the heater 2 to contact with ink in a larger volume, thereby quickly heating the ink. In addition, the setting of the sealing ring 33 can effectively seal the mounting port 11 to prevent ink from leaking from the mounting port 11.

[0032] In order to further improve the sealing performance of the installation opening 11 , an annular groove 34 is formed on the side wall of the connecting pipe 3 at the position of the installation opening 11 . A sealing ring 5 is provided in the annular groove 34 and is interference fit in the installation opening 11 .

[0033] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for heating ink core of inkjet printer, comprising an ink tank, characterized in that: The bottom of the ink tank is provided with a mounting opening, a heater is fixedly mounted on the mounting opening, a connecting pipe passing through the mounting opening is provided on the heater, and a wire outlet is provided in the connecting pipe.

2. The ink core heating device for a printer according to claim 1, characterized in that: The heater comprises a base, an upper cover and a heating plate. The base is disc-shaped and has an installation cavity with an opening facing upward. The heating plate is installed in the installation cavity. The upper cover is fixedly covered over the installation cavity of the base and covers the heating plate.

3. The ink core heating device for a printer according to claim 2, characterized in that: The base is also provided with a control cavity communicated with the wire outlet at the lower side of the installation cavity, and a thermal insulation switch electrically connected with the heating plate is arranged in the control cavity.

4. The ink core heating device for a printer according to claim 2, characterized in that: The upper cover is pressed tightly on the heating plate.

5. The ink core heating device for a printer according to claim 2, characterized in that: The connecting tube is fixedly connected to the base, and is provided with a butt plate which abuts against the lower end surface of the base. The butt plate is provided with a sealing ring which abuts against the bottom of the ink tank, and the sealing ring surrounds the outer periphery of the installation port.

6. The ink core heating device for inkjet printer according to claim 2, characterized in that: The connecting pipe is threadedly connected with a fixing nut at the lower side of the installation opening.

7. The ink core heating device for a printer according to claim 2, characterized in that: The side wall of the connecting pipe is provided with an annular groove at the position of the installation opening, a sealing ring is arranged in the annular groove, and the sealing ring is interference-fitted in the installation opening.

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