Screw emulsification apparatus for aqueous pigment pastes

Abstract

The utility model discloses a spiral emulsification equipment for water-based pigment color paste relates to printer ink production technical field, including mounting seat, the left -hand end fixed mounting of mounting seat has the shell, the inside fixed mounting of shell has the emulsion tank, the inside of emulsion tank is equipped with the spiral emulsification subassembly for to color paste emulsification, the surface of mounting seat and emulsion tank are equipped with temperature control subassembly, the spiral emulsification subassembly includes drive motor, in spiral emulsification subassembly, drive motor drives stirring shaft rotation, and multiple groups of cross distribution's connecting rod cooperate with two groups of reverse spiral blade, can form complex and intense material convection, simultaneously, the multiple groups of annular ring that set up in emulsion tank, its inside shear tooth and reverse spiral blade synergistic effect, carry out shearing, grinding to color paste in the rotation process, can effectively break up pigment aggregation, annular ring and shear tooth strengthen local shearing force, and the dispersion uniformity of color paste and emulsification efficiency are greatly promoted.

Description

Technical Field

[0001] This utility model relates to the field of printer ink production, and in particular to a spiral emulsification device for water-based pigment pastes. Background Technology

[0002] In the production process of printer ink, the emulsification quality of water-based pigment paste directly affects the performance of the ink, such as color saturation, stability, and smoothness. Water-based pigment paste with good emulsification quality will form a stable emulsifier adsorption film on the surface of its pigment particles. This film can effectively prevent the particles from attracting each other and agglomerating. During storage, the pigment paste is less likely to separate, precipitate, or flocculate, ensuring the uniformity of ink composition. During the printing process, it can also resist the influence of environmental factors such as temperature and humidity, maintain stable physical and chemical properties, and reduce printing failures caused by pigment instability, such as printhead clogging. In addition, a stable emulsification system can also extend the shelf life of the ink and ensure that it maintains good performance within the specified time.

[0003] Currently, most emulsification equipment for water-based pigment pastes uses traditional stirring devices, which use blades rotating in one direction for stirring and emulsification. However, this type of equipment has problems such as low emulsification efficiency and uneven dispersion of pigment particles, which can easily lead to agglomeration of the pigment paste and affect the quality of subsequent ink products. In addition, existing emulsification equipment often lacks real-time monitoring and control of key parameters (such as temperature and pH value) during the emulsification process, making it difficult to ensure the stability of emulsification conditions and thus affecting the consistency of the pigment paste. Therefore, we propose a spiral emulsification device for water-based pigment pastes. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spiral emulsification device for water-based pigment pastes. This solves the problems mentioned in the background section, where existing emulsification devices for water-based pigment pastes mostly employ traditional stirring devices. The unidirectional rotation of blades for stirring and emulsification results in low emulsification efficiency and uneven pigment particle dispersion, easily leading to pigment paste agglomeration and affecting the quality of subsequent ink products. Furthermore, existing emulsification devices often lack real-time monitoring and control of key parameters (such as temperature and pH) during the emulsification process, making it difficult to ensure the stability of emulsification conditions and thus affecting the consistency of the pigment paste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spiral emulsification device for water-based pigment pastes, comprising a mounting base, a housing fixedly mounted on the left end of the mounting base, an emulsification tank fixedly mounted inside the housing, a spiral emulsification component for emulsifying the pigment paste being provided inside the emulsification tank, a temperature control component being provided on the surface of the mounting base and inside the emulsification tank, the spiral emulsification component including a drive motor, a stirring shaft fixedly connected to the output shaft of the drive motor, multiple sets of cross-distributed connecting rods fixedly mounted on the stirring shaft, and two sets of spiral blades fixedly mounted at both ends of the multiple sets of connecting rods.

[0006] As a further technical solution of this utility model, the emulsifying tank is also provided with multiple sets of annular rings that cooperate with the spiral blades, and the inner side of the annular rings is provided with several shearing teeth.

[0007] As a further technical solution of this utility model, the multiple sets of annular rings are connected to the inner wall of the emulsifying tank through connecting plates, and the spiral directions of the two sets of spiral blades are opposite.

[0008] As a further technical solution of this utility model, the temperature control component includes a water tank and a water pump connected to the water tank. An output pipe is fixedly connected to the water pump. The end of the output pipe away from the water pump is connected to a spiral tube extending into the emulsification tank. The spiral tube is connected to the water tank through a return pipe.

[0009] As a further technical solution of this utility model, the emulsifying tank is provided with a feeding hopper at the top, a controller on the outside, and a discharge port at the bottom. A temperature sensor and a pH monitor are fixedly installed at the top and bottom of the emulsifying tank, respectively. The temperature sensor, pH monitor, drive motor, and water pump are all electrically connected to the controller.

[0010] As a further technical solution of this utility model, the spiral tube is made of a metal material with good thermal conductivity, the spiral tube is fitted to the outer wall of the emulsification tank, and a thermally conductive silicone layer is provided on the spiral tube.

[0011] As a further technical solution of this utility model, the bottom of the emulsifying tank and the discharge port are provided with a detachable filter element, and the filter element includes a coarse filter screen and a fine filter screen.

[0012] This invention provides a spiral emulsification device for water-based pigment pastes, which has the following advantages compared with the prior art:

[0013] 1. By incorporating a spiral emulsification component, this device addresses the issues of low emulsification efficiency and pigment agglomeration associated with traditional single-direction blade agitation. The spiral emulsification component features a drive motor that rotates the stirring shaft. Multiple sets of cross-distributed connecting rods work in conjunction with two sets of counter-rotating spiral blades to create complex and intense material convection. Simultaneously, multiple annular rings within the emulsification tank, with their inner shearing teeth working in tandem with the counter-rotating spiral blades, shear and grind the pigment paste during rotation, effectively breaking up pigment agglomerates. Compared to traditional single blades, the counter-rotating spiral blades increase the frequency and range of material disturbance, while the annular rings and shearing teeth enhance local shearing force, significantly improving the uniformity of pigment paste dispersion and emulsification efficiency. This prevents agglomeration from affecting subsequent ink quality, thus overcoming the drawbacks of traditional agitation devices.

[0014] 2. By incorporating a temperature control component, this equipment addresses the lack of key parameter monitoring and control in traditional equipment. The temperature control component, consisting of a water tank, water pump, output pipe, spiral pipe, and return pipe, forms a circulating temperature control system that can precisely regulate the temperature inside the emulsification tank. Combined with a temperature sensor, pH monitor, and controller inside the emulsification tank, it can monitor and provide feedback on key parameters such as temperature and pH in real time. When parameters deviate from the set range, the controller can adjust the water pump and other components to ensure a stable emulsification environment. This solves the problem of inconsistent emulsification conditions in traditional equipment, improves the stability of pigment paste quality, and provides environmental protection for the production of high-quality water-based pigment pastes. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a spiral emulsification device for water-based pigment pastes;

[0016] Figure 2 A front cross-sectional schematic diagram of a spiral emulsification device for water-based pigment pastes;

[0017] Figure 3 One of the schematic diagrams of the spiral emulsification component structure of a spiral emulsification equipment for water-based pigment pastes;

[0018] Figure 4 A schematic diagram of the temperature control component of a spiral emulsification device for water-based pigment pastes;

[0019] Figure 5 The second schematic diagram of the spiral emulsification component structure of a spiral emulsification equipment for water-based pigment pastes.

[0020] In the diagram: 1. Mounting base; 2. Housing; 3. Emulsifying tank; 4. Spiral emulsification assembly; 5. Temperature control assembly; 6. Feed hopper; 7. Controller; 8. Discharge port; 9. Temperature sensor; 10. pH monitor; 401. Drive motor; 402. Stirring shaft; 403. Connecting rod; 404. Spiral blades; 405. Annular ring; 406. Shearing teeth; 407. Connecting plate; 501. Water tank; 502. Water pump; 503. Output pipe; 504. Spiral tube; 505. Return pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a spiral emulsification device for water-based pigment pastes, including a mounting base 1. A housing 2 is fixedly mounted on the left end of the mounting base 1 (the housing is vertically fixed to the panel on the left end of the mounting base; a support component, such as two support feet, can also be provided below the panel of the mounting base to support the housing, making the installation structure of the housing more reliable). An emulsification tank 3 is fixedly mounted inside the housing 2. The emulsification tank 3 contains a spiral emulsification component 4 for emulsifying the pigment paste. A temperature control component 5 is provided on the surface of the mounting base 1 (panel surface) and inside the emulsification tank 3. The spiral emulsification component 4 includes a drive motor 401. A stirring shaft 402 is fixedly connected to the output shaft of the drive motor 401. Multiple sets of cross-distributed connecting rods 403 are fixedly mounted on the stirring shaft 402. Two sets of spiral blades 404 are fixedly mounted at both ends of the multiple sets of connecting rods 403. The mounting base 1, as the basic load-bearing structure of the device, is made of high-strength metal. Made of cast material, its bottom is equipped with anti-slip pads, which can effectively disperse the vibration generated during the operation of the equipment and provide a stable and reliable support for the entire equipment. This ensures that core components such as the spiral emulsification component 4 and the temperature control component 5 remain stable during operation. The outer shell 2 is made of double-layer heat-insulating board, which not only provides physical protection for the internal emulsification tank 3, preventing damage to the emulsification tank 3 from external collisions, but also isolates it from external temperature changes and dust impurities, avoiding interference from external environmental factors with the emulsification process inside the emulsification tank 3, and providing a relatively constant external environment for pigment emulsification. The spiral emulsification component 4 is the core structure for realizing pigment emulsification. The drive motor 401 provides power output, which is transmitted to multiple sets of cross-distributed connecting rods 403 through the stirring shaft 402. The connecting rods 403 drive two sets of spiral blades 404 to rotate at high speed. The three work together to form a powerful shearing and stirring force, realizing efficient emulsification of pigment.

[0023] like Figure 5 As shown, the emulsifying tank 3 is also equipped with multiple sets of annular rings 405 that cooperate with the spiral blades 404. Several shearing teeth 406 are provided on the inner side of each annular ring 405. The multiple sets of annular rings 405 are connected to the inner wall of the emulsifying tank 3 via connecting plates 407. The two sets of spiral blades 404 have opposite spiral directions. The annular rings 405 are fixed horizontally inside the emulsifying tank 3, maintaining a reasonable gap with the edge of the spiral blades 404. A shearing space is formed when the spiral blades 404 rotate. The shearing teeth 406 on their inner side are made of wear-resistant alloy material and are evenly distributed in a serrated shape, capable of cooperating with the spiral blades 404 to form a shearing space. The multiple shear surfaces significantly enhance the shearing and breaking effect on pigment agglomerates in the color paste. The connecting plate 407 is a high-strength metal plate, with one end welded and fixed to the annular ring 405 and the other end bolted to the inner wall of the emulsifying tank 3, ensuring that the annular ring 405 remains stable in the vibration environment of high-speed stirring and will not shift or shake. The two sets of spiral blades 404 adopt a reverse spiral design, which can drive the color paste to form an upward and downward convection material movement when rotating, so that the color paste forms a more complex circulation and turbulence in the emulsifying tank 3, greatly improving the mixing uniformity of the color paste and avoiding the problem of insufficient local emulsification.

[0024] like Figure 4 As shown, the temperature control component 5 includes a water tank 501 and a water pump 502 connected to the water tank 501. An output pipe 503 is fixedly connected to the water pump 502. The end of the output pipe 503 away from the water pump 502 is connected to a spiral tube 504 extending into the emulsifying tank 3. The spiral tube 504 is connected to the water tank 501 through a return pipe 505. The spiral tube 504 is made of a metal material with good thermal conductivity. The spiral tube 504 is fitted to the outer wall of the emulsifying tank 3, and a thermally conductive silicone layer is provided on the spiral tube 504. The spiral tube 504 is made of copper material with high thermal conductivity. The thermally conductive silicone layer on its surface can fit tightly to the outer wall of the emulsifying tank 3, reducing heat transfer. To reduce heat loss during the process and improve heat exchange efficiency, the spiral tube 504 is spirally wound around the outer wall of the emulsifying tank 3, increasing the contact area with the emulsifying tank 3 and further enhancing the temperature control effect. The temperature control medium stored in the water tank 501 can be selected as hot or cold water according to needs. After being pressurized by the water pump 502, it is transported to the spiral tube 504 through the output pipe 503. After heat exchange with the emulsifying tank 3, it returns to the water tank 501 through the return pipe 505, forming a closed circulation system. This circulation temperature control method can accurately regulate the temperature inside the emulsifying tank 3, keeping the pigment paste always in the optimal emulsification temperature range and avoiding the impact of temperature fluctuations on the stability of the pigment paste and the emulsification quality.

[0025] like Figure 2As shown, the emulsifying tank 3 has a feed hopper 6 at the top, a controller 7 on the outside, and a discharge port 8 at the bottom. A temperature sensor 9 and a pH monitor 10 are fixedly installed at the top and bottom of the emulsifying tank 3, respectively. The temperature sensor 9, pH monitor 10, drive motor 401, and water pump 502 are all electrically connected to the controller 7. A removable filter element, including a coarse filter and a fine filter, is located at the bottom of the emulsifying tank 3 near the discharge port 8. The feed hopper 6 has a funnel-shaped design; its wide end allows for quick addition of color paste raw materials by the operator, while its narrow end is sealed to the feed port at the top of the emulsifying tank 3, effectively preventing splashing and leakage during color paste addition. The controller 7 serves as the control center of the equipment. The system receives temperature data from the temperature sensor 9 inside the emulsification tank 3 and pH data from the pH monitor 10 via a preset program. After analysis and processing, it automatically adjusts the speed of the drive motor 401 to change the stirring intensity of the spiral blades 404, and simultaneously regulates the power of the water pump 502 to adjust the circulation speed of the temperature control medium, thereby achieving precise control of the emulsification process. The detachable filter at the discharge port 8 consists of a coarse filter and a fine filter. The coarse filter can filter out larger impurity particles in the pigment, while the fine filter can remove small undispersed particles. The dual filtration ensures that the discharged pigment has a fine and uniform texture. The filter uses a snap-on connection method, which is convenient for operators to disassemble, clean or replace regularly, ensuring the stability of the filtration effect.

[0026] The working principle of this utility model is as follows: When the spiral emulsification equipment for water-based pigment paste is working, the water-based pigment paste to be processed is first fed into the emulsification tank 3 through the feed hopper 6. The controller 7 starts the drive motor 401, which drives the stirring shaft 402 to rotate. This causes multiple sets of cross-distributed connecting rods 403 on the stirring shaft 402 to drive two sets of opposing spiral blades 404 to rotate. During the rotation, the spiral blades 404 cooperate with the shearing teeth 406 on the inner side of multiple sets of annular rings 405 fixed by connecting plates 407 in the emulsification tank 3 to shear and grind the pigment paste. At the same time, the opposing spiral blades 404 form complex convection, enhancing the emulsification effect. At this time, the water pump 502 in the temperature control component 5 delivers the temperature control medium in the water tank 501 through the output pipe 503 to the spiral tube 504 that is attached to the outer wall of the emulsification tank 3. After the medium flows in the spiral tube 504 to achieve heat exchange, it returns to the water tank 501 through the return pipe 505, forming a circulating temperature control. The temperature sensor 9 and pH value monitor 10 in the emulsification tank 3 transmit the monitoring data to the controller 7 in real time. The controller 7 adjusts the speed of the drive motor 401 and the power of the water pump 502 according to the data to maintain suitable emulsification conditions. The emulsified pigment paste is filtered by the filter element containing coarse and fine filter screens at the bottom discharge port 8 of the emulsification tank 3 and then discharged. At this point, the entire process ends.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A screw emulsifying device for aqueous pigment pastes, comprising a mounting base (1), characterized in that: A housing (2) is fixedly installed on the left end of the mounting base (1). An emulsifying tank (3) is fixedly installed inside the housing (2). A spiral emulsifying component (4) for emulsifying pigment paste is provided inside the emulsifying tank (3). A temperature control component (5) is provided on the surface of the mounting base (1) and inside the emulsifying tank (3). The spiral emulsifying component (4) includes a drive motor (401). A stirring shaft (402) is fixedly connected to the output shaft of the drive motor (401). Multiple sets of cross-distributed connecting rods (403) are fixedly installed on the stirring shaft (402). Two sets of spiral blades (404) are fixedly installed at both ends of the multiple sets of connecting rods (403).

2. The screw emulsifying apparatus for an aqueous pigment paste according to claim 1, characterized by: The emulsifying tank (3) is also provided with multiple sets of annular rings (405) that cooperate with the spiral blades (404), and the inner side of the annular rings (405) is provided with several shearing teeth (406).

3. The screw emulsifying apparatus for an aqueous pigment paste according to claim 2, characterized by: Multiple sets of the annular rings (405) are connected to the inner wall of the emulsifying tank (3) through connecting plates (407), and the two sets of spiral blades (404) have opposite spiral directions.

4. The spiral emulsification equipment for water-based pigment pastes according to claim 1, characterized in that: The temperature control component (5) includes a water tank (501) and a water pump (502) connected to the water tank (501). An output pipe (503) is fixedly connected to the water pump (502). One end of the output pipe (503) away from the water pump (502) is connected to a spiral tube (504) extending into the emulsification tank (3). The spiral tube (504) is connected to the water tank (501) through a return pipe (505).

5. The spiral emulsification device for water-based pigment pastes according to claim 4, characterized in that: The emulsifying tank (3) is provided with a feed hopper (6) at the top, a controller (7) on the outside, and a discharge port (8) at the bottom. A temperature sensor (9) and a pH monitor (10) are fixedly installed at the top and bottom of the emulsifying tank (3), respectively. The temperature sensor (9), pH monitor (10), drive motor (401), and water pump (502) are all electrically connected to the controller (7).

6. The spiral emulsification device for water-based pigment pastes according to claim 5, characterized in that: The spiral tube (504) is made of a metal material with good thermal conductivity. The spiral tube (504) is fitted to the outer wall of the emulsification tank (3), and a thermally conductive silicone layer is provided on the spiral tube (504).

7. The spiral emulsification device for water-based pigment pastes according to claim 5, characterized in that: The emulsifying tank (3) has a removable filter element at the bottom of the interior and at the discharge port (8), and the filter element includes a coarse filter screen and a fine filter screen.

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