CN-118181953-B - Automatic ink adding device of external ink cabinet

Abstract

The invention relates to an automatic ink adding device of an external ink cabinet, which belongs to the technical field of ink boxes and comprises an external ink cabinet, an ink barrel, a liquid level sensor and an electric control system, wherein the liquid level sensor is arranged on the outer wall of the ink barrel and is used for monitoring the liquid level in the ink barrel, the electric control system controls the ink in the external ink cabinet to enter the ink barrel, the liquid level sensor is in communication connection with the electric control system, a driving part drives a double-roller shaft belt transmission part to rotate, a belt of the double-roller shaft belt transmission part and a comb tooth part are in friction electricity generation, a metal protection part forms a positive electric output body, the positive electric output body formed by the metal protection part reduces oscillation of the ink entering the ink barrel, when the added ink is close to a ball body, positive electric charges are accumulated in the ink, the ball body is repelled by the ink like a magnet, and finally, the ink which flows vertically flows down along the wall of the ink barrel after entering the ink barrel, so that the problem that the oscillation of the ink can be generated in the ink barrel and the monitoring result of the liquid level sensor can be affected is solved.

Inventors

• LIN XIAOBO
• LIU LU
• LIU SHENGWANG
• MENG ZHENHUA
• HUANG PENGYU
• XU YUANCHUN

Assignees

• 广州市普理司科技有限公司

Dates

Publication Date

20260508

Application Date

20240410

Claims (4)

1. 1. The automatic ink adding device of the external ink cabinet is characterized by comprising the external ink cabinet, an ink barrel, a liquid level sensor and an electric control system, wherein the liquid level sensor is arranged on the outer wall of the ink barrel and is used for monitoring the liquid level in the ink barrel, the electric control system controls ink in the external ink cabinet to enter the ink barrel, the liquid level sensor is in communication connection with the electric control system, the automatic ink adding device also comprises an electrostatic generating mechanism arranged on the inner wall of the top of the ink barrel, the electrostatic generating mechanism comprises a metal protection part, a double-roll shaft belt transmission part, a driving part and comb tooth parts, the driving part is used for driving roll shafts to rotate, the comb tooth parts are respectively arranged on two sides of the double-roll shaft and are attached to the belt, the driving part drives the double-roll shaft belt transmission part to rotate, and the belt of the double-roll shaft belt transmission part is in frictional electrification with the comb tooth parts, so that the metal protection part forms a positive output body, and the positive output body formed by the metal protection part reduces oscillation of the ink entering the ink barrel; The metal protection part comprises a base, a connecting pipe and a sphere, wherein the base and the sphere are of cavity structures, two ends of the connecting pipe are respectively communicated with a cavity of the base and a cavity of the sphere to form channels, two roll shafts of the double-roll shaft belt transmission part are respectively positioned in the cavity of the base and the cavity of the sphere and are connected through belt transmission, the belts are positioned in the channels formed by the connecting pipe, the cavity of the base and the cavity of the sphere, the roll shafts are positioned in the cavity of the sphere and are made of aluminum, the roll shafts are positioned in the cavity of the base and are made of polytetrafluoroethylene, the belts of the double-roll shaft belt transmission part are made of neutral cotton, and the metal protection part and the comb tooth part are made of iron.
2. 2. The automatic ink feeding device of an external ink cabinet according to claim 1, wherein the comb tooth tips of the comb tooth parts on two sides of the double roller shaft are attached to the belt.
3. 3. The automatic ink feeding device of claim 1, wherein the driving part is in communication connection with an electronic control system.
4. 4. The automatic ink feeding device of claim 1, wherein the static electricity generating mechanism arranged on the inner wall of the top of the ink tank is higher than a preset liquid level.

Description

Automatic ink adding device of external ink cabinet Technical Field The invention belongs to the technical field of ink boxes, and particularly relates to an automatic ink feeding device of an external ink cabinet. Background The existing digital printer is usually provided with some built-in ink adding capacity, the built-in ink adding capacity is smaller, the ink can not be automatically prompted after the ink is used up, the ink can be found to be used up only when the color is insufficient when a photo is printed, so that some expensive printing paper is wasted, or the situation of checking the ink can be checked by opening the inside of the digital printer, the operation is troublesome, and for this reason, the device for automatically adding the ink of the digital printer appears on the market, the liquid level of the required ink is set in the ink barrel in advance, then the liquid level sensor is closely attached to the ink barrel for sensing the liquid level of the ink, when the ink in the ink barrel is insufficient, the ink in the external ink cabinet is automatically added into the ink barrel until the liquid level is set, and the operation is convenient and quick. The automatic ink adding device for the digital printer still has some problems that when ink is added, the ink is added from the top of an ink barrel, when newly added ink vertically falls into the bottom of the ink barrel from the top of the ink barrel, the ink can generate oscillation in the ink barrel, the amplitude or frequency of the oscillation is continuously changed, the measured value of a liquid level sensor is easy to fluctuate along with the oscillation, the monitoring result of the liquid level sensor is influenced, the liquid level of the ink in the ink barrel is lower than or higher than the preset liquid level due to inaccurate monitoring result of the liquid level sensor, finally, the defects of excessive ink in the ink barrel, high printing consumables and the like are caused, or the defects of too little ink in the ink barrel, insufficient ink, streaks and the like are caused during printing are caused. Disclosure of Invention In order to solve the problems in the prior art, the invention provides an automatic ink feeding device of an external ink cabinet, which solves the problems that the ink can generate oscillation in an ink barrel, the amplitude or frequency of the oscillation is continuously changed, the measured value of a liquid level sensor is easy to fluctuate along with the oscillation, and the monitoring result of the liquid level sensor is influenced. The automatic ink adding device for the external ink cabinet comprises the external ink cabinet, an ink barrel, a liquid level sensor and an electric control system, wherein the liquid level sensor is arranged on the outer wall of the ink barrel and used for monitoring the liquid level in the ink barrel, the electric control system is used for controlling ink in the external ink cabinet to enter the ink barrel, the liquid level sensor is in communication connection with the electric control system, the automatic ink adding device for the external ink cabinet further comprises an electrostatic generating mechanism arranged on the inner wall of the top of the ink barrel, the electrostatic generating mechanism comprises a metal protection part, a double-roll shaft belt transmission part, a driving part used for driving a roll shaft to rotate and comb tooth parts which are respectively arranged on two sides of the double-roll shaft and are attached to a belt, the driving part is used for driving the double-roll shaft belt transmission part to rotate, and the belt of the double-roll shaft belt transmission part and the comb tooth parts are in friction electricity generation, so that the metal protection part forms a positive electric output body, and the positive electric output body formed by the metal protection part reduces oscillation of the ink entering the ink barrel. As a further scheme of the invention, the metal protection part comprises a base, a connecting pipe and a sphere, wherein the base and the sphere are of a cavity structure, and two ends of the connecting pipe are respectively communicated with the cavity of the base and the cavity of the sphere to form a channel. As a further scheme of the invention, the two roll shafts of the double roll shaft belt transmission part are respectively positioned in the cavity of the base and the cavity of the sphere, the two roll shafts are connected through belt transmission, and the belt is positioned in a channel formed by the connecting pipe, the cavity of the base and the cavity of the sphere. As a further aspect of the invention, the roller shaft is made of aluminum in the cavity of the sphere. As a further proposal of the invention, the roll shaft positioned in the cavity of the base is made of polytetrafluoroethylene. As a further aspect of the present invention, the belt of the twin-roller belt trans