Viscosity meter for testing viscosity of printing ink

Abstract

The utility model discloses a viscosity meter for testing ink viscosity, which comprises a bottom plate and is characterized in that the upper surface of the bottom plate is fixedly connected with a viscosity meter body, the viscosity meter body is respectively provided with a test roller, a hollow copper roller and an ink vibrator, the rear side surface of the ink vibrator is contacted with the lower part of the front side surface of the hollow copper roller, and the hollow copper roller is fixedly connected with the bottom plate. The bottom of the testing roller is propped against the top of the hollow copper roller. According to the viscosity instrument for testing the viscosity of the printing ink, quantitative printing ink is uniformly smeared on the surface of the ink distributing roller, the ink distributing roller and the hollow copper roller rotate to form shearing force to separate a printing ink film, in the testing process, water flow in an inner cavity of the water storage tank is extracted, and the water flow is sprayed out after being atomized by a plurality of atomizing nozzles; the fountain solution can be dropwise added to the ink on the surface of the hollow copper roller, water-ink balance in the printing process of a flat plate offset press is simulated, a more accurate test result is provided for the transfer performance of offset printing ink, and ink quality control is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of viscometers, in particular to a viscometer for testing ink viscosity. Background Art

[0002] Offset ink is mainly made of binders, pigments, active diluents, additives and related fillers through chemical processes and physical mixing. The ink does not contain volatile substances, effectively reducing volatile organic compound emissions and alleviating environmental pollution.

[0003] In the prior art, during the ink production and processing, a viscometer is needed to test the ink viscosity in order to improve the stability of the ink in later use. However, most of the existing viscometers for ink viscosity testing do not have the function of evaluating the water-ink balance during the use of the ink. They are unable to accurately evaluate the anti-emulsification performance of offset inks during quality control, and are therefore unable to better test the dynamic changes in the viscosity and water-ink balance of the ink during use.

[0004] Therefore, how to conveniently test the dynamic balance of ink and fountain solution during the printing process is a technical problem that needs to be solved urgently in the industry. Utility Model Content

[0005] The main purpose of the utility model is to provide a viscometer for testing ink viscosity, aiming to solve the problem that most existing viscometers for testing ink viscosity do not have the function of evaluating the water-ink balance during the use of ink, and cannot accurately evaluate the anti-emulsification performance of offset ink during quality control.

[0006] The utility model proposes a viscosity meter for testing ink viscosity, comprising a base plate, and is characterized in that a viscosity meter body is fixedly connected to the upper surface of the base plate, and a test roller, a hollow copper roller and an ink-threading roller are respectively provided on the viscosity meter body, and a test roller, a hollow copper roller and an ink-threading roller are respectively provided on the viscosity meter body, the rear side surface of the ink-threading roller contacts the lower part of the front side surface of the hollow copper roller, and the bottom of the test roller conflicts with the top of the hollow copper roller.

[0007] The upper surface of the base plate is fixedly connected to a water tank located on the rear side of the test roller, the front side of the water tank is fixedly connected to a diverter plate located above the hollow copper roller, the lower surface of the diverter plate is connected to a plurality of atomizing nozzles, a containing shell with an open end face is provided on the top of the inner cavity of the water tank, and the inner cavity of the containing shell is provided with a water pump mechanism for extracting water from the inner cavity of the water tank and injecting it into the interior of the diverter plate.

[0008] Preferably, a cover plate is provided on the top of the water storage tank, the top of the containing shell is fixedly connected to the lower surface of the cover plate, a plurality of bolts are provided on the cover plate, and threaded holes adapted to the bolts are opened on the top of the water storage tank.

[0009] Preferably, the water pump mechanism includes a water pump body and a connecting pipe. The water pump body is disassembled and arranged in the inner cavity of the containing shell. The water inlet of the water pump body is connected to the water inlet pipe. The other end of the water inlet pipe extends to the bottom of the inner cavity of the water tank. The connecting pipe is connected to the upper surface of the diverter plate. The other end of the connecting pipe extends to the inner cavity of the water tank. The water outlet of the water pump body is connected to the water outlet pipe. The other end of the water outlet pipe is disassembled and connected to the other end of the connecting pipe.

[0010] Preferably, the inner end of the connecting pipe is provided with an internal threaded barrel, and the other end of the water outlet pipe is provided with an external threaded connecting pipe adapted to the internal threaded barrel.

[0011] Preferably, a vertical pipe communicating with the inner cavity of the water storage tank is provided on the upper surface of the cover plate, and a piston is detachably provided at the top end of the vertical pipe.

[0012] Preferably, handles are fixedly connected to both ends of the upper surface of the cover plate.

[0013] Preferably, a control panel is provided on the viscometer body.

[0014] The utility model uses a plurality of atomizing nozzles to evenly spray the fountain solution onto the ink on the hollow copper roller during the process of testing the viscosity of the offset ink. The rotation and shear force of the ink string roller and the test roller cause the ink on the test roller to gradually absorb the fountain solution. The viscosity data of the viscosity meter body begins to change with the process of absorbing the fountain solution and records the viscosity change curve. The ink begins to change from oil-in-water to water-in-oil. After the fountain solution and the ink reach equilibrium, the viscosity value tends to be stable. The transferability and water resistance of the offset ink during the printing process are determined by the change curve of the viscosity data, which can effectively and accurately improve the printing adaptability of the ink during the research and development and quality control processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0016] Figure 2 This is a structural diagram of the water pump mechanism of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0018] In the figure: 1. Base plate; 2. Viscometer body; 3. Test roller; 4. Hollow copper roller; 5. Ink roller; 6. Water storage tank; 7. Cover plate; 8. Bolt; 9. Container shell; 10. Water pump body; 11. Water inlet pipe; 12. Diverter plate; 13. Atomizing nozzle; 14. Connecting pipe; 15. Internally threaded barrel; 16. Water outlet pipe; 17. Externally threaded connecting pipe; 18. Vertical pipe; 19. Piston; 20. Handle; 21. Threaded hole; 22. Control panel.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Reference Figure 1-3 , an embodiment of the utility model is proposed, a viscosity meter for testing ink viscosity, comprising a base plate 1, characterized in that a viscosity meter body 2 is fixedly connected to the upper surface of the base plate 1, and an ink-threading roller 5, a hollow copper roller 4 and a test roller 3 are respectively provided on the viscosity meter body 2, the rear side of the ink-threading roller 5 contacts the lower part of the front side of the hollow copper roller 4, and the bottom of the test roller 3 conflicts with the top of the hollow copper roller 4.

[0022] The viscometer body 2 is provided with a water tank assembly for injecting water of different temperatures into the hollow copper roller 4, so as to control the surface temperature of the hollow copper roller 4;

[0023] The upper surface of the bottom plate 1 is fixedly connected to a water tank 6 located behind the test roller 3, and the front side of the water tank 6 is fixedly connected to a diverter plate 12 located above the hollow copper roller 4. The lower surface of the diverter plate 12 is connected to a plurality of atomizing nozzles 13.

[0024] A housing 9 with an open end is located at the top of the water tank 6. This housing houses a pump mechanism that extracts water from the tank 6 and injects it into the diverter plate 12. Multiple atomizing nozzles 13 atomize the water and spray it out. As the hollow copper roller 4 rotates, dampening solution drips onto the ink on its surface. The water tank 6 can be filled with dampening solutions of varying pH values, conductivities, and ratios.

[0025] During the rotation of the ink roller 5, the hollow copper roller 4 and the test roller 3, shear force is generated on the ink to separate the ink film, which better simulates the ink transfer situation in the actual printing process. The working principles of the ink roller 5, the hollow copper roller 4 and the test roller 3 are existing technologies and will not be elaborated on here.

[0026] The viscosity meter body 2 is provided with a driving assembly for driving the hollow copper roller 4 and the test roller 3 to rotate. The viscosity meter body 2 is provided with a transmission assembly for driving the ink roller 5 to rotate and reciprocate in the horizontal direction.

[0027] During the test, after the water pump mechanism works, the water flow in the inner cavity of the water storage tank 6 can be extracted and injected into the inner cavity of the diverter plate 12. The fountain solution is evenly sprayed onto the ink on the hollow copper roller 4 through multiple atomizing nozzles 13. After the rotation and shear force of the ink roller 5 and the test roller 3, the ink on the test roller 3 begins to gradually absorb the fountain solution. The viscosity data of the viscosity meter body 2 begins to change with the process of absorbing the fountain solution and the viscosity change curve is recorded.

[0028] The ink begins to change from oil-in-water to water-in-oil. After the fountain solution and ink reach equilibrium, the viscosity value tends to stabilize.

[0029] By determining the transferability and water resistance of offset inks during the printing process through the change curve of viscosity data, the printing adaptability of inks during research and development and quality control can be improved efficiently and accurately.

[0030] Furthermore, a cover plate 7 is provided on the top of the water tank 6, the top of the accommodating shell 9 is fixedly connected to the lower surface of the cover plate 7, a plurality of bolts 8 are provided on the cover plate 7, and a threaded hole 21 adapted to the bolts 8 is opened on the top of the water tank 6.

[0031] After the bolts 8 are threadedly connected with the threaded holes 21, the cover plate 7 can be fixed for use. After the bolts 8 are removed, the accommodating shell 9 can be removed, which facilitates subsequent inspection and maintenance operations on the water pump mechanism.

[0032] Furthermore, the water pump mechanism includes a water pump body 10 and a connecting pipe 14. The water pump body 10 is disassembled and arranged in the inner cavity of the accommodating shell 9. The water inlet of the water pump body 10 is connected to the water inlet pipe 11. The other end of the water inlet pipe 11 extends to the bottom of the inner cavity of the water storage tank 6. The connecting pipe 14 is connected to the upper surface of the diversion plate 12.

[0033] The other end of the connecting pipe 14 extends to the inner cavity of the water storage tank 6 , and the water outlet of the water pump body 10 is connected to the water outlet pipe 16 , and the other end of the water outlet pipe 16 is detachably connected to the other end of the connecting pipe 14 .

[0034] After the water pump body 10 is working, it can extract water from the inner cavity of the water storage tank 6 through the water inlet pipe 11 and inject the water into the inner cavity of the diverter plate 12 through the guide communication of the water outlet pipe 16 and the connecting pipe 14.

[0035] Furthermore, an internal threaded barrel 15 is provided at the inner end of the connecting pipe 14 , and an external threaded connecting pipe 17 adapted to the internal threaded barrel 15 is provided at the other end of the water outlet pipe 16 .

[0036] After the external threaded pipe 17 is threadedly connected to the internal threaded barrel 15, the water outlet pipe 16 can be connected to the connecting pipe 14, which is convenient for subsequent disassembly, inspection and maintenance operations.

[0037] Furthermore, a vertical pipe 18 communicating with the inner cavity of the water storage tank 6 is provided on the upper surface of the cover plate 7 , and a piston 19 is provided at the top end of the vertical pipe 18 . After the piston 19 is removed, water can be injected into the inner cavity of the water storage tank 6 through the vertical pipe 18 .

[0038] Furthermore, handles 20 are fixedly connected to both ends of the upper surface of the cover plate 7 , and the handles 20 are convenient for the staff to take the cover plate 7 and facilitate the installation and removal of the cover plate 7 .

[0039] Furthermore, a control panel 22 is provided on the viscometer body 2 , and the control panel 22 facilitates the staff to operate the working state of the device.

[0040] During operation, after the ink is evenly applied to the surface of the ink string roller 5, the ink is evenly applied to the surface of the hollow copper roller 4 and the test roller 3 during the rotation of the ink string roller 5, the hollow copper roller 4 and the test roller 3. The test roller 3 and the hollow copper roller 4 rotate to form a shear force to separate the ink film, which better simulates the ink transfer situation in the actual printing process. During the test, the fountain solution is evenly sprayed on the ink of the hollow copper roller 4 through multiple atomizing nozzles 13. After the rotation and shear force of the ink string roller 5 and the test roller 3, the ink on the test roller 3 begins to gradually absorb the fountain solution. The viscosity data of the viscosity meter body 2 begins to change with the process of absorbing the fountain solution and records the viscosity change curve. The ink begins to change from oil-in-water to water-in-oil. After the fountain solution and ink reach equilibrium, the viscosity value tends to be stable. The transferability and water resistance of the offset ink during the printing process are determined by the change curve of the viscosity data, which can efficiently and accurately improve the printing adaptability of the ink during research and development and quality control.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A viscometer for testing ink viscosity, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a viscosity meter body (2), and an ink roller (5), a hollow copper roller (4) and a test roller (3) are respectively provided on the viscosity meter body (2), the rear side of the ink roller (5) contacts the lower part of the front side of the hollow copper roller (4), and the bottom of the test roller (3) contacts the top of the hollow copper roller (4); The upper surface of the bottom plate (1) is fixedly connected to a water storage tank (6) located at the rear side of the test roller (3); the front side of the water storage tank (6) is fixedly connected to a diverter disk (12) located above the hollow copper roller (4); the lower surface of the diverter disk (12) is connected to a plurality of atomizing nozzles (13); a receiving shell (9) with an open end face is provided at the top of the inner cavity of the water storage tank (6); the inner cavity of the receiving shell (9) is provided with a water pump mechanism for extracting water from the inner cavity of the water storage tank (6) and injecting it into the inner cavity of the diverter disk (12).

2. The viscometer for testing ink viscosity according to claim 1, wherein: A cover plate (7) is provided on the top of the water storage tank (6), the top of the accommodating shell (9) is fixedly connected to the lower surface of the cover plate (7), a plurality of bolts (8) are provided on the cover plate (7), and threaded holes (21) adapted to the bolts (8) are opened on the top of the water storage tank (6).

3. The viscometer for testing ink viscosity according to claim 1, wherein: The water pump mechanism includes a water pump body (10) and a connecting pipe (14). The water pump body (10) is disassembled and arranged in the inner cavity of the accommodating shell (9). The water inlet of the water pump body (10) is connected with a water inlet pipe (11). The other end of the water inlet pipe (11) extends to the bottom of the inner cavity of the water storage tank (6). The connecting pipe (14) is connected to the upper surface of the diverter plate (12). The other end of the connecting pipe (14) extends to the inner cavity of the water storage tank (6). The water outlet of the water pump body (10) is connected with a water outlet pipe (16). The other end of the water outlet pipe (16) is disassembled and connected with the other end of the connecting pipe (14).

4. The viscometer for testing ink viscosity according to claim 3, wherein: An internal threaded barrel (15) is provided at the inner end of the connecting pipe (14), and an external threaded connecting pipe (17) adapted to the internal threaded barrel (15) is provided at the other end of the water outlet pipe (16).

5. The viscometer for testing ink viscosity according to claim 2, wherein: The upper surface of the cover plate (7) is provided with a vertical pipe (18) communicating with the inner cavity of the water storage tank (6), and a piston (19) is detachably provided at the top end of the vertical pipe (18).

6. The viscometer for testing ink viscosity according to claim 2, characterized in that: Both ends of the upper surface of the cover plate (7) are fixedly connected with handles (20).

7. The viscometer for testing ink viscosity according to claim 1, wherein: A control panel (22) is provided on the viscosity meter body (2).

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