Ink mixing device and control method

Abstract

The invention relates to an ink mixing device and a control method, belonging to the technical field of ink production and manufacturing, including: a mixing chamber for mixing pigments and aqueous solutions, the mixing chamber is connected to a stirring motor, the stirring motor is transmission-connected to a stirring shaft, and the stirring shaft is coaxially arranged with the mixing chamber; a plurality of paddles are rotatably connected to the side of the stirring shaft, and the paddles rotate around the stirring shaft under the drive of the stirring motor, and two paddles are in a group, and each group of paddles is arranged on the side of the stirring shaft at equal intervals; an electric telescopic rod is connected in the stirring shaft, and a driving block is transmission-connected, and the driving block is transmission-connected to the paddles, and the electric telescopic rod is driven by a servo motor, and the paddles rotate around their own axes under the drive of the electric telescopic rod; a plurality of patch strain gauges are attached to the side of the paddle connected to one end of the stirring shaft; the device can solve the technical problem in the prior art that it is impossible to objectively judge the mixing conditions of each layer of ink in the entire mixing device, thereby causing printing defects in the printing process.

Description

Technical Field

[0001] The invention belongs to the technical field of ink production and manufacturing, and in particular relates to an ink mixing device and a control method. Background Art

[0002] In the environmentally friendly packaging products industry, the environmental friendliness of printing inks is a crucial link in the entire industry's environmental protection chain. Water-based inks are widely used in the environmentally friendly packaging products industry due to their low-pollution raw materials and low-pollution printing characteristics. In the large-scale batch printing production process, the method of independently mixing ink for each printing machine greatly reduces the consistency of printing effects of batch products. Therefore, most companies have adopted a centralized ink mixing method that uniformly distributes ink to each printing machine to achieve better consistency.

[0003] However, due to the poor wettability of the pigments in water-based inks, if a large amount of surface modification auxiliary agents are not added during mixing, uneven mixing will occur, affecting the printing quality. However, adding a large amount of surface modification auxiliary agents will increase new sources of pollution. Therefore, how to fully mix the water-based ink pigments and the aqueous solvent is an urgent problem that technicians in this field need to solve.

[0004] The existing patent with application number 202122341024.1 discloses an ink powder mixing system, which includes an ink mixing kettle, wherein the upper and lower sides thereof are respectively connected with an ink feed pipe and an ink discharge pipe, a dispersion mixing chamber is provided at the output end of the high-speed powder suction pump, a mixing feed pipe is provided between the input end of the dispersion mixing chamber and the bottom of the ink mixing kettle, a mixing discharge pipe is provided between the output end of the dispersion mixing chamber and the middle part of the ink mixing kettle, a powder guide pipe is provided obliquely in the middle part of the dispersion mixing chamber, and the end of the mixing discharge pipe on the inner side of the ink mixing kettle is horizontally connected with a dispersion discharge pipe, a mixing stirring paddle is provided on the mixing stirring shaft, and the ink stirring motor drives the mixing stirring shaft to rotate.

[0005] The prior art has the following problems:

[0006] By using the observation and inspection hole provided on the ink mixing kettle to observe the stirring and mixing conditions in the ink mixing kettle, it is only possible to subjectively judge the mixing conditions of local pigments and water-soluble solutions. It is impossible to objectively judge the mixing conditions of each layer of ink in the entire mixing device, which leads to printing defects during the printing process. Summary of the invention

[0007] The present invention provides an ink mixing device and a control method, which can solve the technical problem in the prior art that the mixing conditions of each layer of ink in the entire mixing device cannot be objectively judged, thereby causing printing defects in the printing process.

[0008] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0009] The present application provides an ink mixing device, which includes a mixing chamber, paddles, an electric telescopic rod and a patch strain gauge. The mixing chamber is used to mix pigments and aqueous solutions. The mixing chamber is connected to a stirring motor, which is transmission-connected to a stirring shaft, and the stirring shaft is coaxially arranged with the mixing chamber; a plurality of paddles are rotatably connected to the side of the stirring shaft. Driven by the stirring motor, the paddles rotate around the stirring shaft. Two paddles are grouped together, and each group of paddles is equidistantly arranged on the side of the stirring shaft; the electric telescopic rod is connected to the stirring shaft and transmission-connected to a driving block, which is transmission-connected to the paddles. The electric telescopic rod is driven by a servo motor. Driven by the electric telescopic rod, the paddles rotate around their own axes; a plurality of patch strain gauges are attached to the side of the paddle connected to one end of the stirring shaft.

[0010] Through the above technical solution, a patch strain gauge is used to identify the force condition of the paddle when not stirring, and then analyze the resistance between the ink of different depths and the paddle, and then objectively judge whether the pigment powder and the aqueous solvent are fully mixed.

[0011] In the present invention, the above-mentioned ink mixing device also includes an isolation layer, a groove and a liquid outlet pipe, the isolation layer is connected to the inner wall of the mixing chamber; the groove is opened on the side of the isolation layer away from the mixing chamber, the axis of the groove is parallel to the axis of the mixing chamber, and the cross-section of the groove is semicircular; the liquid outlet pipe is connected to the lowest point of the semicircular cross-section of the groove, and the liquid outlet pipe is used to discharge ink to the outside of the mixing chamber.

[0012] Through the above technical solution, an isolation layer with grooves is used as the liquid outlet. When the ink rotates by inertia, a greater pressure can be formed at the bottom of the groove, which is more conducive to the discharge of the ink. At the same time, because of the presence of the groove, a vortex will be formed near the groove, reducing the probability of sediment blocking the outlet of the liquid outlet pipe.

[0013] In the present invention, the ink mixing device further includes an air flow pulverizing component, which includes a feed bin, an air inlet pipe, a pulverizing disk, an air-powder separation bin, and a powder conveying pipe. The air inlet pipe introduces a high-speed airflow to blow the pigment in the feed bin toward the pulverizing disk. The pigment further pulverized and refined by the pulverizing disk passes through the air-powder separation bin and then enters the mixing bin through the powder conveying pipe.

[0014] Through the above technical solution, an air flow crushing component is used to further crush the pigment raw materials, thereby preventing agglomerates formed during the transportation and storage of the pigment raw materials from being fully mixed.

[0015] In the present invention, the ink mixing device further comprises a first pressurized cabin and a second pressurized cabin, wherein the first pressurized cabin is connected to the top of the mixing cabin, a first nozzle is connected to the bottom of the first pressurized cabin, and the other end of the first nozzle faces the inside of the mixing cabin; the second pressurized cabin is connected to the top of the mixing cabin, a second nozzle is connected to the bottom of the second pressurized cabin, and the other end of the second nozzle faces the inside of the mixing cabin;

[0016] The first nozzle, the second nozzle and the powder conveying pipe are all arranged on the top of the mixing bin.

[0017] Through the above technical solution, the pressurized atomization spraying method is adopted to fully increase the contact area of ​​the aqueous solvent, the connecting material and the pigment, and further improve the mixing effect.

[0018] In the present invention, the ink mixing device further comprises a metal cylinder, which is connected to the middle of the powder conveying pipe, and the metal cylinder is connected to a single electrode.

[0019] Through the above technical solution, a charged metal cylinder is used to plunder the pigment powder with electrons, thereby forming a repulsive force between the pigment powders, so that the pigment is fully diffused to avoid agglomeration, thereby improving the mixing effect.

[0020] In the present invention, the ink mixing device further comprises an ultrasonic component, and the ultrasonic component is connected to the bottom of the mixing chamber.

[0021] Through the above technical solution, an ultrasonic component is used to perform ultrasonic vibration on the ink in the mixing chamber to break up the bubbles mixed in the ink, thereby improving the printing quality.

[0022] The present invention also provides an ink mixing control method, which uses the above-mentioned ink mixing device and also includes the following steps:

[0023] Step S1: adding the toner raw material into the feed bin, continuously pressurizing the aqueous solvent into the first pressurizing chamber, and continuously pressurizing the connecting material into the second pressurizing chamber;

[0024] Step S2: Compressed air is introduced through the air inlet pipe to form a negative pressure at the lower end of the feed bin to suck the pigment in the feed bin downward and blow it toward the crushing disk with the compressed air. The crushed pigment powder is separated from a large amount of air by the air-powder separation bin, and then passes through the powder conveying pipe and the metal cylinder under the action of a small amount of airflow. After the metal cylinder captures the electrons on the surface of the pigment powder, it enters the mixing bin. At the same time, the pressurized aqueous solvent and the connecting material are respectively sprayed out through the first nozzle and the second nozzle in atomization.

[0025] Step S3: starting the electric telescopic rod to drive the driving block to move so that the blade rotates to a 45-degree tilt state;

[0026] Step S4: starting the stirring motor to drive the stirring shaft to drive the paddle to rotate to stir the mixed pigment powder, aqueous solvent and connecting material in the mixing bin;

[0027] Step S5: starting the electric telescopic rod to drive the driving block to move so that the blades rotate to a horizontal state, and reading the degrees of the patch strain gauges attached to the root of each blade in four directions;

[0028] Step S6: When the variation trend of the degree values ​​of all the patch strain gauges is the same as that in the isodensity test solution, the liquid outlet pipe is opened through the solenoid valve to discharge the ink outward for centralized ink supply.

[0029] Through the above technical solution, the rotating blades are used to different angles to stir and detect the ink resistance of different layers in the ink, thereby obtaining objective data on the mixing condition of the ink, thereby improving the quality of the ink used for printed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 An axonometric diagram of an ink mixing device provided by an embodiment of the present invention;

[0032] Figure 2 A side view of an ink mixing device provided by an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A partial schematic diagram of the cross-sectional view at AA in FIG.

[0034] Figure 4 An exploded view of a stirring shaft provided in an embodiment of the present invention;

[0035] Figure 5 An exploded view of a blade provided in an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of a propeller blade at 0 degrees provided by an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the structure of the blade provided in an embodiment of the present invention when the angle is 45 degrees;

[0038] Figure 8 A front view of an ink mixing device provided by an embodiment of the present invention;

[0039] Fig. 9 for Figure 8 Sectional view at the middle BB;

[0040] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0041] Fig.11 for Figure 8 A partial schematic diagram of the cross-sectional view at CC in the middle;

[0042] Fig.12 A cross-sectional view of a metal cylinder provided in an embodiment of the present invention.

[0043] Icons: 1-mixing bin; 101-stirring motor; 102-stirring shaft; 1021-mounting shell; 103-paddle; 1031-patch strain gauge; 1032-protective shell; 104-electric telescopic rod; 105-driving block; 1051-rack; 106-gear; 107-bearing sleeve; 108-isolation layer; 1081-groove; 109-liquid outlet pipe; 2-air flow crushing assembly; 201-feeding bin; 202-inlet pipe; 203-crushing disc; 204-gas-powder separation bin; 205-powder conveying pipe; 301-first pressurized cabin; 3011-first nozzle; 302-second pressurized cabin; 3021-second nozzle; 4-metal cylinder; 401-isolation plate; 402-guide core; 5-ultrasonic assembly. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0045] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 therefore should not be understood as a limitation on the present application.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Example:

[0049] Please refer to Figures 1 to 12 , Figures 1 to 12 An embodiment of the present application is shown.

[0050] This embodiment provides an ink mixing device, such as Figures 1 to 5 As shown, it includes a mixing chamber 1, a paddle 103, an electric telescopic rod 104 and a patch strain gauge 1031. The mixing chamber 1 is used to mix the pigment and the aqueous solution. The mixing chamber 1 is connected to a stirring motor 101, and the stirring motor 101 is transmission-connected to a stirring shaft 102. The stirring shaft 102 is coaxially arranged with the mixing chamber 1; Figure 4 , Figure 6 as well as Figure 7 As shown, six blades 103 are rotatably connected to the side of the stirring shaft 102 through a bearing sleeve 107. Driven by the stirring motor 101, the blades 103 rotate around the stirring shaft 102. There are three groups of two blades 103 in total. Each group of blades 103 is arranged at equal intervals on the side of the stirring shaft 102. Figure 4 As shown, the electric telescopic rod 104 is connected to the stirring shaft 102, the rod head of the electric telescopic rod 104 is connected to the driving block 105, the driving block 105 is slidably connected in the stirring shaft 102, the side of the driving block 105 is provided with an air avoidance groove, one side of the air avoidance groove is connected to a rack 1051, one end of the blade 103 is plugged with a gear 106, the gear 106 and the rack 1051 are meshed, the electric telescopic rod 104 is driven by a servo motor, and has a self-locking function. Under the drive of the electric telescopic rod 104, the blade 103 rotates around its own axis; Figure 5 and Fig.10 As shown, four patch strain gauges 1031 are attached to the side of the blade 103 connected to one end of the stirring shaft 102, and are protected by a protective shell 1032 covered outside.

[0051] When using, Figure 6 and Figure 7As shown, the driving block 105 is first pulled upward by the electric telescopic rod 104, and the paddle 103 is rotated 45 degrees clockwise by the relative movement of the rack 1051 and the gear 106, and then the stirring motor 101 drives the stirring shaft 102 to rotate and stir. When measuring the density of the layer, the driving block 105 is pushed downward by the electric telescopic rod 104 to rotate the paddle 103 45 degrees counterclockwise and return to the horizontal. Then, when the ink forms different resistances through the upper and lower surfaces, different readings will appear on the upper and lower patch strain gauges 1031. At the same time, the degrees of the front and rear patch strain gauges 1031 can also be used as data references. The standard data of the patch strain gauge 1031 is measured using a pure aqueous solution to obtain the resistance difference trend of the patch strain gauge 1031 at different positions in the uniform medium. Then, when the ink is mixed, the density of the ink at different depths is different, and the resistance difference trend deviation becomes larger, which indicates that the ink is not fully mixed. If necessary, a uniform medium with the same density as the ink can be used for simulation to obtain a standard resistance difference trend.

[0052] Through the above technical solution, the patch strain gauge 1031 is used to identify the force of the blade 103 when it is not stirred, and then analyze the resistance between the ink of different depths and the blade 103, and then objectively judge whether the pigment powder and the aqueous solvent are fully mixed.

[0053] As a preferred implementation method, Fig.11 As shown, the ink mixing device further includes an isolation layer 108, a groove 1081 and a liquid outlet pipe 109, wherein the isolation layer 108 is connected to the inner wall of the mixing chamber 1; the groove 1081 is opened on the side of the isolation layer 108 facing away from the mixing chamber 1, the axis of the groove 1081 is parallel to the axis of the mixing chamber 1, and the cross-section of the groove 1081 is semicircular; the liquid outlet pipe 109 is connected to the lowest point of the semicircular cross-section of the groove 1081, and the liquid outlet pipe 109 is used to discharge ink to the outside of the mixing chamber 1.

[0054] It should be noted that when the ink is at the opening of the groove 1081, the liquid in the groove 1081 will first be driven by the counterclockwise rotation of the overall liquid flow in the mixing chamber 1, and will have an initial tendency to rotate counterclockwise. This is because the liquid in the mixing chamber 1 is a continuous fluid system, and its rotational motion will be gradually transmitted to the liquid in the groove 1081 through the viscosity of the fluid, so that the liquid in the groove 1081 also tends to rotate counterclockwise following the mainstream direction of the liquid in the mixing chamber 1. On the other hand, when the liquid flows through the groove 1081, due to the concave shape of the groove 1081, the streamline of the liquid flow at the groove 1081 will bend and deform. At the edge and bottom of the groove 1081, the liquid velocity and pressure distribution are uneven, and this unevenness will promote the formation of local vortices. At the same time, at the entrance of the groove 1081, the pressure is relatively low. This is because when the liquid flow accelerates into the groove 1081, according to the Bernoulli principle, the faster flow rate will cause the pressure to decrease, and this pressure decrease will make the surrounding liquid flow more easily attracted into the groove 1081, further affecting the flow state of the liquid in the groove 1081; the pressure is relatively high at the bottom and outlet of the groove 1081. Because the liquid flow flows slowly at the bottom of the groove 1081, and the speed will gradually recover when it flows out of the groove 1081, according to the Bernoulli principle, the pressure will increase when the flow rate slows down.

[0055] Through the above technical solution, the isolation layer 108 with the groove 1081 is used as the liquid outlet. When the ink rotates by inertia, a greater pressure can be formed at the bottom of the groove 1081, which is more conducive to the discharge of the ink. At the same time, due to the existence of the groove 1081, a vortex will be formed near the groove 1081, reducing the probability of sediment blocking the outlet of the liquid outlet pipe 109.

[0056] As a preferred implementation method, Figure 1 and Figure 8 As shown, the ink mixing device also includes an air flow pulverizing component 2, which has a feed bin 201, an air inlet pipe 202, a pulverizing disc 203, an air-powder separation bin 204 and a powder conveying pipe 205. The air inlet pipe 202 introduces a high-speed airflow to blow the pigment in the feed bin 201 toward the pulverizing disc 203. The pigment is further pulverized and refined by the pulverizing disc 203 and enters the mixing bin 1 through the powder conveying pipe 205 after passing through the air-powder separation bin 204.

[0057] Through the above technical solution, the air flow crushing component 2 is used to further crush the pigment raw materials, so as to avoid that the agglomerates formed during the transportation and storage of the pigment raw materials cannot be fully mixed.

[0058] As a preferred implementation method, Fig. 9As shown, the ink mixing device further comprises a first pressurized cabin 301 and a second pressurized cabin 302. The first pressurized cabin 301 is connected to the top of the mixing chamber 1. The bottom of the first pressurized cabin 301 is connected to a first nozzle 3011, and the other end of the first nozzle 3011 faces the inside of the mixing chamber 1. The second pressurized cabin 302 is connected to the top of the mixing chamber 1. The bottom of the second pressurized cabin 302 is connected to a second nozzle 3021, and the other end of the second nozzle 3021 faces the inside of the mixing chamber 1.

[0059] The first nozzle 3011 , the second nozzle 3021 and the powder conveying pipe 205 are all arranged on the top of the mixing bin 1 .

[0060] It should be noted that the connecting material is low-viscosity acrylic resin, the aqueous solvent is water, and the pressurization method is compressed air.

[0061] Through the above technical solution, the pressurized atomization spraying method is adopted to fully increase the contact area of ​​the aqueous solvent, the connecting material and the pigment, and further improve the mixing effect.

[0062] As a preferred implementation method, Figure 4 and Fig.12 As shown, the ink mixing device further comprises a metal cylinder 4, which is connected to the middle of the powder conveying pipe 205, and is connected to a single electrode.

[0063] When in use, a guide core 402 is welded to the middle of the metal cylinder 4 , and an isolation plate 401 is welded between the guide core 402 and the cylinder wall to form a fan-shaped distribution channel, thereby increasing the contact area between the pigment powder and the metal cylinder 4 .

[0064] Through the above technical solution, the charged metal cylinder 4 is used to plunder the pigment powder with electrons, thereby forming a repulsive force between the pigment powders, so that the pigment is fully diffused to avoid agglomeration, thereby improving the mixing effect.

[0065] As a preferred embodiment, the ink mixing device further includes an ultrasonic component 5 , which is connected to the bottom of the mixing chamber 1 .

[0066] Through the above technical solution, the ultrasonic component 5 is used to perform ultrasonic vibration on the ink in the mixing chamber 1 to break up the bubbles mixed in the ink, thereby improving the printing quality.

[0067] This embodiment provides another ink mixing control method, which uses the above-mentioned ink mixing device and also includes the following steps:

[0068] Step S1: the toner raw material is added into the feed bin 201, the aqueous solvent is continuously pressurized and passed into the first pressurized chamber 301, and the connecting material is continuously pressurized and passed into the second pressurized chamber 302;

[0069] Step S2: Compressed air is introduced through the air inlet pipe 202 to form a negative pressure at the lower end of the feed bin 201, so that the pigment in the feed bin 201 is sucked downward and blown toward the crushing disk 203 with the compressed air. The crushed pigment powder is separated from a large amount of air by the air-powder separation bin 204, and then passes through the metal cylinder 4 through the powder conveying pipe 205 under the action of a small amount of airflow. After the metal cylinder 4 captures the electrons on the surface of the pigment powder, it enters the mixing bin 1. At the same time, the pressurized aqueous solvent and the connecting material are respectively sprayed out through the first nozzle 3011 and the second nozzle 3021;

[0070] Step S3: starting the electric telescopic rod 104 to drive the driving block 105 to move so that the blade 103 rotates to a 45-degree tilt state;

[0071] Step S4: starting the stirring motor 101 to drive the stirring shaft 102 to drive the paddle 103 to rotate to stir the mixed pigment powder, aqueous solvent and connecting material in the mixing bin 1;

[0072] Step S5: Start the electric telescopic rod 104 to drive the driving block 105 to move so that the blades 103 rotate to a horizontal state, and read the degrees of the patch strain gauges 1031 attached to the roots of each blade 103 in four directions;

[0073] Step S6: When the variation trend of the degree values ​​of all the patch strain gauges 1031 is the same as that in the isodensity test solution, the liquid outlet pipe 109 is opened through the electromagnetic valve to discharge the ink outward for centralized ink supply.

[0074] Through the above technical solution, the rotating blade 103 is used to different angles to stir and detect the ink resistance of different layers in the ink, thereby obtaining objective data on the mixing condition of the ink, thereby improving the quality of the ink used for printed products.

[0075] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An ink mixing device, characterized in that: include: A mixing chamber (1) for mixing pigment and aqueous solution, the mixing chamber (1) being connected to a stirring motor (101), the stirring motor (101) being drivingly connected to a stirring shaft (102), the stirring shaft (102) being coaxially arranged with the mixing chamber (1); A plurality of paddles (103) are rotatably connected to the side of the stirring shaft (102); under the drive of the stirring motor (101), the paddles (103) rotate around the stirring shaft (102); two paddles (103) form a group, and each group of paddles is arranged at equal intervals on the side of the stirring shaft (102); An electric telescopic rod (104) is connected to the stirring shaft (102) and is transmission-connected to a driving block (105). The driving block (105) is transmission-connected to the paddle (103). The electric telescopic rod (104) is driven by a servo motor. Under the drive of the electric telescopic rod (104), the paddle (103) rotates around its own axis. The paddle (103) rotates 45 degrees clockwise, and then the stirring motor (101) drives the stirring shaft (102) to rotate and stir. When measuring the density of the layers, the driving block (105) is pushed downward by the electric telescopic rod (104) to make the paddle (103) rotate 45 degrees counterclockwise and return to horizontal, and then different resistances are formed when the ink passes through the upper and lower surfaces. A plurality of patch strain gauges (1031) are attached to the side surface of the blade (103) connected to one end of the stirring shaft (102), and the patch strain gauges (1031) are used to identify the stress condition of the blade (103) when the stirring is not in progress; An isolation layer (108) connected to the inner wall of the mixing bin (1); a groove (1081) formed on a side of the isolation layer (108) facing away from the mixing chamber (1), the axis of the groove (1081) being parallel to the axis of the mixing chamber (1), and the cross section of the groove (1081) being semicircular; A liquid outlet pipe (109) is connected to the lowest point of the semicircular cross section of the groove (1081), and the liquid outlet pipe (109) is used to discharge ink to the outside of the mixing chamber (1).

2. The ink mixing device according to claim 1, characterized in that: Also includes: The airflow pulverizing component (2) comprises a feed bin (201), an air intake pipe (202), a pulverizing disc (203), an air-powder separation bin (204), and a powder conveying pipe (205). The air intake pipe (202) introduces a high-speed airflow to blow the pigment in the feed bin (201) toward the pulverizing disc (203). The pigment is further pulverized and refined by the pulverizing disc (203), passes through the air-powder separation bin (204), and then enters the mixing bin (1) through the powder conveying pipe (205).

3. The ink mixing device according to claim 2, characterized in that: Also includes: A first pressurized chamber (301) is connected to the top of the mixing chamber (1); a first nozzle (3011) is connected to the bottom of the first pressurized chamber (301); the other end of the first nozzle (3011) faces the interior of the mixing chamber (1); A second pressurized chamber (302) is connected to the top of the mixing chamber (1); a second nozzle (3021) is connected to the bottom of the second pressurized chamber (302); the other end of the second nozzle (3021) faces the interior of the mixing chamber (1); The first nozzle (3011), the second nozzle (3021) and the powder conveying pipe (205) are all arranged on the top of the mixing bin (1).

4. The ink mixing device according to claim 3, characterized in that: Also includes: The metal cylinder (4) is connected to the middle part of the powder conveying pipe (205), and the metal cylinder (4) is connected to a single electrode.

5. The ink mixing device according to claim 4, characterized in that: Also includes: An ultrasonic component (5) is connected to the bottom of the mixing chamber (1).

6. An ink mixing control method, characterized in that: Using the ink mixing device as claimed in claim 5, further comprising the following steps: Step S1: adding a toner raw material into the feed bin (201), continuously pressurizing the aqueous solvent and passing it into the first pressurizing chamber (301), and continuously pressurizing the connecting material and passing it into the second pressurizing chamber (302); Step S2: Compressed air is introduced through the air inlet pipe (202) to form a negative pressure at the lower end of the feed bin (201), so that the pigment in the feed bin (201) is sucked downward and blown toward the crushing disk (203) with the compressed air. The crushed pigment powder is separated from a large amount of air by the air-powder separation bin (204), and then passes through the metal cylinder (4) through the powder conveying pipe (205) under the action of a small amount of airflow. After the surface electrons of the pigment powder are captured in the metal cylinder (4), the pigment powder enters the mixing bin (1), and the pressurized aqueous solvent and the connecting material are sprayed out through the first nozzle (3011) and the second nozzle (3021) respectively. Step S3: starting the electric telescopic rod (104) to drive the driving block (105) to move so that the blade (103) rotates to a 45-degree tilted state; Step S4: starting the stirring motor (101) to drive the stirring shaft (102) to drive the paddle (103) to rotate to stir the mixed pigment powder, aqueous solvent and connecting material in the mixing bin (1); Step S5: starting the electric telescopic rod (104) to drive the driving block (105) to move so that the blades (103) rotate to a horizontal state, and reading the degrees of the patch strain gauges (1031) attached to the roots of each blade (103) in four directions; Step S6: When the variation trend of the degree values ​​of all the patch strain gauges (1031) is the same as the variation trend thereof in the isodensity test solution, the liquid outlet pipe (109) is opened through the solenoid valve to discharge the ink outward for centralized ink supply.

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