CN114932743B - Printing device capable of automatically supplying ink - Google Patents

Abstract

The invention discloses a printing device for autonomously supplying ink, comprising a column frame, a screw shaft, a screw nut seat, a lifting frame and a roller brush assembly, the column frame is vertically arranged, and the two ends of the screw shaft pass through The bearing is rotatably connected to the column frame, the screw nut seat is connected to the screw shaft screw pair, the column frame is provided with a guide rail 2, and a slider 2 is provided for sliding on the guide rail 2, and the lifting frame is fastened to the slider 2 connection, the roller brush assembly is connected with the lifting frame; the top of the column frame is provided with a motor seat, and the servo motor 2 is fastened on the motor seat, and the output shaft of the servo motor 2 passes through a coupling and a screw rod Shaft connection, higher printing efficiency, higher degree of automation, better adaptability, better stability of ink supply, less labor intensity; and realize the supply of thicker ink.

Description

A printing device that supplies ink autonomously

technical field

The invention belongs to the technical field of printing equipment, and in particular, the invention relates to a printing device for autonomously supplying ink.

Background technique

During the Spring Festival, a traditional festival in China, every household will affix Spring Festival couplets, blessing characters or stickers. It depicts beautiful images and expresses good wishes with neat, concise and delicate characters. In the past, every household used a brush to write Spring Festival couplets on red paper by themselves. Now with the development of the industrial age and the development of printing technology, the use of a unified template to print Spring Festival couplets has become the demand of the development of the times.

At present, manual roller brush dipping ink is used for printing, but it still needs to consume a lot of manpower, the printing efficiency is low, the degree of automation is low, the labor intensity is high, and the nature of the work is tedious.

In addition, the current printing device supplies ink unevenly, and for inks with different viscosities, it is difficult to control the depth of ink marks in the printing effect.

Contents of the invention

The present invention provides a printing device that supplies ink autonomously, so as to solve the problems in the above-mentioned background technology.

In order to achieve the above object, the technical solution adopted by the present invention is: a printing device for autonomously supplying ink, including a column frame, a screw shaft, a screw nut seat, a lifting frame and a roller brush assembly, the column frame is vertically arranged, and the Both ends of the screw shaft are rotatably connected to the column frame through bearings with seats, and the screw nut seat is connected to the screw shaft screw pair. The column frame is provided with a guide rail 2, and a slider 2 is provided for sliding on the guide rail 2. The lifting frame is fastened to the slider 2, and the roller brush assembly is connected to the lifting frame; a motor seat is provided on the top of the column frame, and a servo motor 2 is fastened on the motor seat, and the servo motor 2 The output shaft is connected with the screw shaft through a coupling;

A rolling brush assembly includes a support plate, an ink cartridge, an infrared heater, a cantilever rod, a rolling brush frame, and a rolling brush. Two support plates are fastened in the middle, the infrared heater is fastened to the lower end of the ink cartridge, two cantilever rods are symmetrically provided, and are respectively connected to the outside of the support plate, and two roller brush holders are symmetrically provided, And they are respectively fastened to the ends of the cantilever rods, the two ends of the roller brush are respectively connected to the roller brush frame in rotation, and the roller brush is tightly attached to the ink cartridge. Preferably, the side wall of the ink cartridge is provided with an arc notch that fits with the roller brush, and the roller brush closely fits the arc notch; the roller brush is arranged on the left side of the ink cartridge, and the inner cavity of the ink cartridge The bottom is an inclined inner bottom; the inclined inner bottom of the ink cartridge is lower on the left and higher on the right.

Another described roller brush assembly includes plate rails, plate sliders, vertical frame plates, miniature electric push rods, bracket plates, rotating shafts, ink cartridges, infrared heaters, long rocker arms, short rocker arms, roller brush holders, Rolling brush, adjusting plate and adjusting cylinder, the plate rail is fastened to the lower end of the lifting frame, the plate slider is slidably connected to the plate rail, the support plate is symmetrically fastened and connected to the plate slider, and the rotating shaft is located at At both ends of the ink cartridge, the rotating shaft passes through the support plate and is rotationally connected with the support plate, the infrared heater is tightly connected to the lower end of the ink cartridge, the long rocker arm is firmly connected to the rotating shaft at one end, and the short rocker arm The rod is tightly connected to the rotating shaft at the other end, and the vertical frame plate is tightly connected to the end of the plate slider; the gearbox seat of the miniature electric push rod is tightly connected to the lifting frame, and the push rod end of the miniature electric push rod The part is fastened to the vertical frame plate; one end of the long rocker arm and the short rocker arm are respectively fastened to the rotating shaft, and the rolling brush frame is symmetrically provided with two, one is fastened to the long rocker rod, and the other One is tightly connected with the short rocker arm, and the two ends of the roller brush are respectively connected to the roller brush frame in rotation, and the roller brush is closely attached to the ink cartridge; the adjustment plate is connected to the top of the vertical frame plate, and the adjustment cylinder The cylinder seat is hinged with the adjusting plate, and the end of the piston rod of the adjusting cylinder is hinged with the end of the long rocker arm. Preferably, the side wall of the ink cartridge is provided with an arc notch that fits with the roller brush, and the roller brush closely fits the arc notch; the roller brush is arranged on the left side of the ink cartridge, and the inner cavity of the ink cartridge The bottom is an inclined inner bottom; the inclined inner bottom of the ink cartridge is high on the left and low on the right.

Preferably, an ink-absorbing sponge is provided at the arc notch, a guide rail groove is provided on the inner wall of the ink cartridge parallel to the inclined inner bottom, and squeeze rollers are arranged rolling in the guide rail groove.

The beneficial effect of adopting above technical scheme is:

1. In the printing device for self-supplying ink of the present invention, the servo motor 2 on the motor base drives the screw shaft to rotate counterclockwise, and the drive screw base carries the lifting frame and the slider 2 and the roller brush assembly on the back along the guide rail in two directions. Move down until the roller brush contacts the printing paper with the protective film.

Then, the roller brush rolls on the printing paper with a protective film, ink is applied to the places where the fonts and patterns need to be printed, and the places where the fonts and patterns do not need to be printed are isolated by the protective film.

After the printing is completed, the servo motor 2 on the motor base drives the screw shaft to rotate clockwise, and the screw nut base moves upward along the guide rail 2 with the lifting frame, the slider 2 and the roller brush assembly on the back until the roller brush and the attached until the printing paper of the protective film is detached.

The printing device for autonomously supplying ink of the present invention has high printing efficiency, high degree of automation, good ink supply stability and low labor intensity.

2. During the printing process, the infrared heater heats the ink rolled on the printing paper with a protective film to accelerate its drying, shorten the drying time and improve the printing efficiency.

During the printing process, the side wall of the ink cartridge is provided with an arc notch that fits with the roller brush, and the roller brush is closely attached to the arc notch; the roller brush is arranged on the left side of the ink cartridge, and the The bottom of the inner cavity is an inclined inner bottom; the inclined inner bottom of the ink cartridge is lower on the left and higher on the right, so that the ink is always accumulated at the roller brush under the action of gravity, ensuring sufficient ink and stable ink supply.

3. In the printing device for self-supplying ink of the present invention, the servo motor 2 on the motor base drives the screw shaft to rotate counterclockwise, and the drive screw base carries the lifting frame and the slider 2 and the roller brush assembly on the back along the guide rail in two directions. Move down until the distance between the bottom end of the roller brush and the printing paper with the protective film is 2cm.

Then, the motor of the miniature electric push rod drives the push rod to extend or shrink through the gearbox, so that the vertical frame plate moves along the plate rail with the plate slider, and the bracket plate, rotating shaft, ink cartridge, infrared heater, and long rocker lever are adjusted. , short rocker arm, roller brush frame, roller brush, adjustment plate, and the size of the adjustment cylinder from the end of the frame, so that the roller brush can roll to the first printed character on the printing paper to meet the requirements for different sizes of printing paper adaptability.

Then, the piston rod of the adjustment cylinder is stretched out, and the long rocker arm is pushed to rotate counterclockwise around the rotating shaft until the roller brush contacts the printing paper with the protective film.

Then, the roller brush rolls on the printing paper with a protective film, ink is applied to the places where the fonts and patterns need to be printed, and the places where the fonts and patterns do not need to be printed are isolated by the protective film.

After the printing is completed, it is only necessary to adjust the piston rod of the cylinder to shrink, and pull the long rocker arm to rotate clockwise around the rotating shaft until the roller brush is separated from the printing paper with the protective film.

The printing device for autonomously supplying ink of the present invention has higher printing efficiency, higher degree of automation, better adaptability, better stability of ink supply and less labor intensity.

4. During the printing process, the infrared heater heats the ink rolled on the printing paper with a protective film to accelerate its drying, shorten the drying time and improve the printing efficiency.

During the printing process, the side wall of the ink cartridge is provided with an arc notch that fits with the roller brush, and the roller brush is closely attached to the arc notch; the roller brush is arranged on the left side of the ink cartridge, and the The bottom of the inner cavity is an inclined inner bottom; the inclined inner bottom of the ink cartridge is higher on the left and lower on the right, so that the ink can only accumulate on the roller brush under the action of gravity when the piston rod of the adjustment cylinder is extended, that is, only when the roller brush When the roller brush is required, the ink accumulates and infiltrates the roller brush under the action of gravity, which ensures the uniformity of the ink infiltration roller brush, and avoids the deepest ink mark of the roller brush at the beginning of printing caused by the roller brush being infiltrated by ink all the time. Then it gradually becomes lighter, which not only ensures the sufficient ink, but also ensures the consistency of the printing ink marks.

In addition, an ink-absorbing sponge is provided at the arc notch, and a guide rail groove is provided on the inner wall of the ink cartridge parallel to the inclined inner bottom, and a squeezing roller is arranged to roll in the guide rail groove, and when the ink viscosity is encountered, When the viscosity of the ink is large or the temperature is low, as the piston rod of the adjustment cylinder is stretched out, the extrusion roller rolls to the left along the guide rail groove to squeeze the ink-absorbing sponge body to achieve a high viscosity ink supply.

Description of drawings

Fig. 1 is the assembly drawing of embodiment 1 printing mechanism;

Fig. 2 is the first assembly drawing of the printing mechanism of embodiment 3;

Fig. 3 is the second assembly drawing of the printing mechanism of embodiment 3;

Figure 4 is an assembly drawing of the screw shaft, the screw nut seat, and the lifting frame;

Fig. 5 is a schematic diagram of the assembly position of the ink cartridge and the roller brush;

Fig. 6 is the cross-sectional view of the assembly position of the ink cartridge and the roller brush in Embodiment 2;

Fig. 7 is the cross-sectional view of the assembly position of the ink cartridge and the roller brush in Embodiment 4;

in:

50, column frame; 50-1, guide rail two; 50-2, slider two; 50-3, motor seat; 50-4, servo motor two; 51, screw shaft; 52, screw nut seat; 53, lift shelf;

57. Cantilever rod;

5-1, plate rail; 5-2, plate slider; 5-3, vertical frame plate; 5-4, miniature electric push rod; 5-5, bracket plate; 5-6, rotating shaft; 5-7, ink cartridge ;5-8, infrared heater; 5-9, long rocker arm; 5-10, short rocker arm; 5-11, roller brush holder; 5-12, roller brush; 5-13, adjustment plate; -14. Adjust the cylinder;

500, arc notch; 501, inclined inner bottom; 502, ink-absorbing sponge; 503, guide rail groove; 504, extruding roller.

Detailed ways

The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

As shown in Figures 1 to 7, the present invention is a printing device that supplies ink independently, with higher printing efficiency, higher degree of automation, better adaptability, better ink supply stability, and low labor intensity; and realizes Supply of thicker ink.

Specifically, as shown in Figures 1 to 7, it includes a column frame 50, a screw shaft 51, a screw nut seat 52, a lifting frame 53 and a roller brush assembly, the column frame 50 is vertically arranged, and the screw shaft Both ends of 51 are rotatably connected to the column frame 50 through bearings with seats, and the screw nut seat 52 is connected to the screw shaft 51 with a screw pair. The column frame 50 is provided with a guide rail 2 50-1, which slides on the guide rail 2 50-1 There is a slider 2 50-2, the lifting frame 53 is tightly connected with the slider 2 50-2, the rolling brush assembly is connected with the lifting frame 53; the top of the column frame 50 is provided with a motor base 50-3, The second servo motor 50-4 is fastened on the motor seat 50-3, and the output shaft of the second servo motor 50-4 is connected to the screw shaft 51 through a coupling;

A described rolling brush assembly includes a support plate 5-5, an ink cartridge 5-7, an infrared heater 5-8, a cantilever rod 57, a rolling brush holder 5-11 and a rolling brush 5-12, and the support plate 5-5 There are two symmetrically arranged, and they are fastened to the elevating frame 53 respectively. The ink cartridge 5-7 is fastened to the middle of the two support plates 5-5, and the infrared heater 5-8 is tightly connected to the lower end of the ink cartridge 5-7. The two cantilever rods 57 are symmetrically arranged, and are respectively connected to the outside of the bracket plate 5-5, and the two roller brush holders 5-11 are symmetrically arranged, and are respectively fastened to the ends of the cantilever rods 57 , the two ends of the roller brush 5-12 are respectively rotatably connected with the roller brush frame 5-11, and the roller brush 5-12 is tightly attached to the ink cartridge 5-7; preferably, the side wall of the ink cartridge 5-7 is provided with The arc notch fit with the roller brush 5-12, the roller brush 5-12 closely fits with the arc notch; the roller brush 5-12 is arranged on the left side of the ink cartridge 5-7, and the ink cartridge 5 The bottom of the cavity of -7 is an inclined inner bottom; the inclined inner bottom of the ink cartridge 5-7 is lower on the left and higher on the right.

Another described rolling brush assembly includes a plate rail 5-1, a plate slider 5-2, a vertical frame plate 5-3, a miniature electric push rod 5-4, a bracket plate 5-5, a rotating shaft 5-6, and an ink cartridge 5 -7, infrared heater 5-8, long rocker arm 5-9, short rocker arm 5-10, rolling brush holder 5-11, rolling brush 5-12, adjusting plate 5-13 and adjusting cylinder 5-14 , the plate rail 5-1 is tightly connected to the lower end of the lifting frame 53, the plate slider 5-2 is slidably connected to the plate rail 5-1, and the support plate 5-5 is symmetrically tightened with respect to the plate slider 5-2. Fixedly connected, the rotating shaft 5-6 is located at both ends of the ink cartridge 5-7, the rotating shaft 5-6 passes through the support plate 5-5, and is rotatably connected with the support plate 5-5, and the infrared heater 5-8 It is tightly connected with the lower end of the ink cartridge 5-7, the long rocker arm 5-9 is firmly connected with the rotating shaft 5-6 at one end, and the short rocker arm 5-10 is firmly connected with the rotating shaft 5-6 at the other end , the vertical frame plate 5-3 is tightly connected with the end of the plate slider 5-2; the gearbox seat of the miniature electric push rod 5-4 is tightly connected with the lifting frame 53, and the miniature electric push rod 5-4 The end of the push rod is tightly connected with the vertical frame plate 5-3; one end of the long rocker lever 5-9 and the short rocker lever 5-10 is respectively tightly connected with the rotating shaft 5-6, and the rolling brush frame 5 -11 is symmetrically provided with two, one is fastened to the long rocker bar 5-9, and the other is fastened to the short rocker bar 5-10. -11 rotating connection, the roller brush 5-12 is closely attached to the ink cartridge 5-7; The plate 5-13 is hinged, and the end of the piston rod of the adjustment cylinder 5-14 is hinged with the end of the long rocker rod 5-9; preferably, the side wall of the ink cartridge 5-7 is provided with a circle that matches the roller brush 5-12. The arc notch, the roller brush 5-12 is closely attached to the arc notch; the roller brush 5-12 is arranged on the left side of the ink cartridge 5-7, and the bottom of the inner cavity of the ink cartridge 5-7 is inclined Bottom; The inclined inner bottom of described ink cartridge 5-7 is high on the left and low on the right.

An ink-absorbing sponge 502 is provided at the arc notch 500 , and a guide rail groove 503 is provided on the inner wall of the ink cartridge 5-7 parallel to the inclined inner bottom 501 , and a squeeze roller 504 is provided rolling inside the guide rail groove 503 .

The specific working method is set forth below with specific embodiments:

Example 1:

In the printing device for autonomously supplying ink of the present invention, the servo motor 2 50-4 on the motor base 50-3 drives the screw shaft 51 to rotate counterclockwise, and the screw base 52 drives the lifting frame 53 and the slider 2 50- 2 and the roller brush assembly move down along the guide rail two 50-1 until the roller brush 5-12 contacts with the printing paper with protective film.

Then, the roller brush 5-12 rolls on the printing paper with protective film, ink will be brushed on the place that needs printed characters and patterns, and the place that does not need printed characters and patterns is isolated by protective film.

After the printing is completed, the servo motor 2 50-4 on the motor base 50-3 drives the screw shaft 51 to rotate clockwise, and the screw nut base 52 is driven along the slide block 2 50-2 and the roller brush assembly with the lifting frame 53 and the back. Move upwards along the guide rail two 50-1 until the roller brush 5-12 breaks away from the printing paper with protective film.

The printing device for autonomously supplying ink of the present invention has high printing efficiency, high degree of automation, good ink supply stability and low labor intensity.

Example 2:

On the basis of Embodiment 1, during the printing process, the infrared heaters 5-8 heat the ink rolled onto the printing paper with a protective film to accelerate its drying, shorten the drying time, and improve printing efficiency.

During the printing process, the side wall of the ink cartridge 5-7 is provided with an arc notch 500 that fits with the roller brush 5-12, and the roller brush 5-12 closely fits with the arc notch 500; 5-12 is arranged on the left side of the ink cartridge 5-7, and the bottom of the inner cavity of the ink cartridge 5-7 is an inclined inner bottom 501; the inclined inner bottom 501 of the ink cartridge 5-7 is lower on the left and higher on the right, so that the ink is always in the direction of gravity Under the action, it accumulates at 5-12 places of the roller brush, which ensures sufficient ink supply and stable ink supply.

Example 3:

In the printing device for autonomously supplying ink of the present invention, the servo motor 2 50-4 on the motor base 50-3 drives the screw shaft 51 to rotate counterclockwise, and the screw base 52 drives the lifting frame 53 and the slider 2 50- 2 and the roller brush assembly move down along the guide rail two 50-1 until the distance between the bottom of the roller brush 5-12 and the printing paper with the protective film is 2cm.

Then, the motor of the miniature electric push rod 5-4 drives the push rod to extend or shrink through the gear box, so that the vertical frame plate 5-3 moves along the plate rail 5-1 with the plate slider 5-2, and adjusts the support plate 5 -5, rotating shaft 5-6, ink cartridge 5-7, infrared heater 5-8, long rocker lever 5-9, short rocker lever 5-10, roller brush holder 5-11, roller brush 5-12, adjustment Plate 5-13, adjust the size of the cylinder 5-14 from the end of the frame 1, so that the roller brush 5-12 can roller brush the first printed character on the printing paper, so as to meet the adaptability to different sizes of printing paper.

Then, adjust the piston rod of the cylinder 5-14 to stretch out, and push the long rocker arm 5-9 to rotate counterclockwise around the rotating shaft 5-6 until the roller brush 5-12 contacts the printing paper with the protective film.

Then, the roller brush 5-12 rolls on the printing paper with protective film, ink will be brushed on the place that needs printed characters and patterns, and the place that does not need printed characters and patterns is isolated by protective film.

After the printing is finished, it is only necessary to adjust the piston rod of the cylinder 5-14 to shrink, and pull the long rocker arm 5-9 to rotate clockwise around the rotating shaft 5-6 to the horizontal until the roller brush 5-12 and the printing surface with the protective film until the paper comes off.

The printing device for autonomously supplying ink of the present invention has higher printing efficiency, higher degree of automation, better adaptability, better stability of ink supply and less labor intensity.

Example 4:

On the basis of Example 3, during the printing process, the infrared heaters 5-8 heat the ink rolled onto the printing paper with a protective film to accelerate its drying, shorten the drying time, and improve printing efficiency.

During the printing process, the side wall of the ink cartridge 5-7 is provided with an arc notch 500 that fits with the roller brush 5-12, and the roller brush 5-12 closely fits with the arc notch 500; 5-12 is arranged on the left side of the ink cartridge 5-7, and the bottom of the inner cavity of the ink cartridge 5-7 is an inclined inner bottom 501; the inclined inner bottom 501 of the ink cartridge 5-7 is high on the left and low on the right, so that the ink can only be adjusted When the piston rod of the cylinder 5-14 is stretched out, the ink will accumulate to the roller brush 5-12 under the action of gravity, that is, only when the roller brush 5-12 needs to be rolled, the ink will go to the roller brush 5-12 under the gravity. Accumulate infiltration roller brush 5-12, to ensure the uniformity of ink infiltration roller brush 5-12, to avoid the roller brush 5-12 printing ink mark is the deepest at the beginning of printing, and then Gradually becomes lighter, which not only ensures the sufficient ink, but also ensures the consistency of the printing ink mark.

In addition, the arc notch 500 is provided with an ink-absorbing sponge body 502, and the inner wall of the ink cartridge 5-7 is provided with a guide rail groove 503 parallel to the inclined inner bottom 501, and a squeeze roller is arranged to roll in the guide rail groove 503. 504, when the viscosity of the ink is high or the ink viscosity is low when the temperature is low, as the piston rod of the adjustment cylinder 5-14 stretches out, the squeeze roller 504 rolls leftward along the guide rail groove 503 Squeeze the ink-absorbing sponge 502 to realize the supply of ink with higher viscosity.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the present invention; or not After improvement, the above-mentioned ideas and technical solutions of the present invention are directly applied to other occasions, all within the protection scope of the present invention.

Claims (3)

1. A printing device for autonomously supplying ink, characterized in that: it comprises a column frame (50), a screw shaft (51), a screw nut seat (52), a lifting frame (53) and a roller brush assembly, and the column frame (50) is vertically arranged, and the two ends of the screw shaft (51) are rotationally connected with the column frame (50) through a bearing with seat, and the screw nut seat (52) is connected with the screw pair of the screw shaft (51). Described column frame (50) is provided with two guide rails (50-1), slides on two guide rails (50-1) and is provided with slide block two (50-2), and described elevating frame (53) and slide block two (50 -2) Tightly connected, the roller brush assembly is connected with the lifting frame (53); the top of the column frame (50) is provided with a motor base (50-3), and the motor base (50-3) is fastened Servo motor two (50-4) is provided, and the output shaft of said servo motor two (50-4) is connected with the screw shaft (51) through a shaft coupling; The rolling brush assembly includes a plate rail (5-1), a plate slider (5-2), a vertical frame plate (5-3), a miniature electric push rod (5-4), a bracket plate (5-5), Shaft (5-6), ink cartridge (5-7), infrared heater (5-8), long rocker arm (5-9), short rocker arm (5-10), roller brush holder (5-11 ), rolling brush (5-12), adjusting plate (5-13) and adjusting cylinder (5-14), the plate rail (5-1) is tightly connected with the lower end of the lifting frame (53), and the plate slides The block (5-2) is slidingly connected with the plate rail (5-1), the support plate (5-5) is symmetrically fastened and connected with respect to the plate slider (5-2), and the rotating shaft (5-6) is located at The two ends of the ink cartridge (5-7), the rotating shaft (5-6) passes through the support plate (5-5), and is rotatably connected with the support plate (5-5), and the infrared heater (5-8) is connected with the The lower end of the ink cartridge (5-7) is tightly connected, the long rocker arm (5-9) is firmly connected with the rotating shaft (5-6) at one end, and the short rocker arm (5-10) is connected with the other end The rotating shaft (5-6) is fastened and connected, and the vertical frame plate (5-3) is fastened and connected with the end of the plate slider (5-2); the gearbox seat of the miniature electric push rod (5-4) It is firmly connected with the lifting frame (53), and the push rod end of the miniature electric push rod (5-4) is firmly connected with the vertical frame plate (5-3); the long rocker arm (5-9) and the short One end of the rocker arm (5-10) is fastened to the rotating shaft (5-6) respectively, and two roller brush holders (5-11) are arranged symmetrically, and one is fastened to the long rocker arm (5-9) connection, the other one is tightly connected with the short rocker lever (5-10), the two ends of the rolling brush (5-12) are respectively connected with the rolling brush holder (5-11) in rotation, and the rolling brush (5-12 ) is tightly attached to the ink cartridge (5-7); the adjustment plate (5-13) is connected to the top of the vertical frame plate (5-3), and the cylinder seat of the adjustment cylinder (5-14) is connected to the adjustment plate (5 -13) Hinged, the end of the piston rod of the adjustment cylinder (5-14) is hinged with the end of the long rocker lever (5-9); the ink in the ink cartridge (5-7) is only on the piston of the adjustment cylinder (5-14) When the rod stretched out, the ink was piled up at the roller brush (5-12) under the action of gravity. 2. A printing device for autonomously supplying ink according to claim 1, characterized in that: the side wall of the ink cartridge (5-7) is provided with an arc notch (500) that fits with the roller brush (5-12) ), the roller brush (5-12) is closely attached to the arc notch (500); the roller brush (5-12) is arranged on the left side of the ink cartridge (5-7), and the ink cartridge (5- 7) The inner cavity bottom is an inclined inner bottom (501); the inclined inner bottom (501) of the ink cartridge (5-7) is higher on the left and lower on the right. 3. A printing device for autonomously supplying ink according to claim 2, characterized in that: the arc notch (500) is provided with an ink-absorbing sponge (502), and the ink cartridge (5-7) A guide rail groove (503) is provided on the inner wall parallel to the inclined inner bottom (501), and extrusion rollers (504) are arranged rolling in the guide rail groove (503).

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