An ink fountain system for a gravure printing press that facilitates adjustment of ink temperature

Abstract

The utility model relates to the intaglio printing technical field, especially an intaglio printing ink tank system of ink temperature convenient to adjust is provided, including temperature regulating device and ink tank, the ink tank includes ink printing tank and temperature regulating tank, the ink printing tank is used for holding ink, the temperature regulating tank is installed in the bottom of ink printing tank, the ink printing tank with temperature regulating tank forms the cavity for accommodating liquid medium together, the temperature regulating tank is installed with temperature regulating coil pipe, the water inlet and return water mouth of temperature regulating coil pipe are worn in the lateral wall of temperature regulating tank, and the water inlet and return water mouth of temperature regulating coil pipe are connected with temperature regulating device respectively, and the circulating pump is equipped in temperature regulating device, temperature regulating coil pipe with temperature regulating device connection becomes circulation loop, temperature regulating device is used for adjusting the temperature of the water that flows through temperature regulating coil pipe, solves the problem that the performance is unstable in the printing process, and ink is influenced by ambient temperature.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing technology, and in particular to an ink tank system for a gravure printing machine that facilitates the adjustment of ink temperature. Background Technology

[0002] As a film printing processing equipment, the film gravure printing machine plays an important role in the film printing process. During the printing process, the ink tank is used to hold the ink, the printing roller absorbs the ink and interacts with the pressure roller to print the ink on the printing film to form the printed pattern. The subsequent film printing process is completed through a series of processes such as drying in an oven, setting, and rewinding.

[0003] During the printing process, to ensure uniform ink distribution and meet the required print quality, equipment such as ink pumps and ink tubes are used to maintain ink flow. However, the stability of ink performance is easily affected by ambient temperature. When the ambient temperature is low, the ink flow deteriorates, leading to uneven ink color and unclear printed patterns. Conversely, when the ambient temperature is high, the ink is prone to deterioration, and color changes can cause discrepancies with the printed pattern requirements. Therefore, it is necessary to adjust the ink temperature to ensure stable ink performance and guarantee printing results. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose an ink tank system for gravure printing machines that facilitates ink temperature adjustment, thereby solving the problem of ink performance instability due to the influence of ambient temperature during the printing process.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An ink tank system for a gravure printing machine that facilitates ink temperature adjustment includes a temperature control device and an ink tank.

[0007] The ink tank includes an ink printing tank and a temperature regulating tank, wherein the ink printing tank is used to hold ink.

[0008] The temperature regulating tank is installed at the bottom of the ink printing tank, and the ink printing tank and the temperature regulating tank together form a receiving cavity, which is used to contain the liquid medium.

[0009] A temperature regulating coil is installed inside the temperature regulating tank. The inlet and outlet of the temperature regulating coil are inserted through the side wall of the temperature regulating tank, and the inlet and outlet of the temperature regulating coil are respectively connected to the temperature regulating device. The temperature regulating device is equipped with a circulation pump. The temperature regulating coil and the temperature regulating device are connected to form a circulation loop. The temperature regulating device is used to regulate the temperature of the water flowing through the temperature regulating coil.

[0010] Preferably, the return water inlet of the temperature regulating coil is connected to the temperature regulating device through a return pipe, and the return pipe is equipped with a pressure regulating valve and a pressure gauge.

[0011] Preferably, the temperature regulating tank has a replenishment port on its side wall, and the replenishment port is located at the upper part of the side wall of the temperature regulating tank; the temperature regulating tank has a discharge port at its bottom, and the replenishment port and the discharge port are respectively equipped with valves.

[0012] Preferably, the temperature regulating coil is made of stainless steel, the wall thickness of the temperature regulating coil is 1-1.2 mm, and the diameter of the temperature regulating coil is 20-21 mm.

[0013] Preferably, the temperature regulating coil is located on the same horizontal plane, and the temperature regulating coil is bent back and forth along the long side of the temperature regulating groove in a continuous S-shape.

[0014] Preferably, the temperature regulating tank is a box-shaped structure with an open top, and the temperature regulating tank is fixedly installed at the bottom of the ink printing tank by full welding.

[0015] Preferably, the temperature regulating bath is made of stainless steel.

[0016] Preferably, the temperature regulating device further includes a temperature control device and a water storage tank. The temperature control device is used to regulate the temperature of the water supplied by the water storage tank. The temperature control device is connected to the water storage tank. The circulating pump connects the water storage tank and the temperature regulating coil. The return water port of the temperature regulating coil is connected to the water storage tank.

[0017] Preferably, the temperature regulating coil is located at the bottom of the temperature regulating tank, and the temperature regulating coil does not contact the ink printing tank.

[0018] Preferably, the inlet of the temperature regulating coil is connected to the temperature regulating device through an outlet pipe, the inlet of the temperature regulating coil is connected to the outlet pipe through a quick connector, and the return port of the temperature regulating coil is connected to the return pipe through a quick connector.

[0019] The technical solution provided by this utility model can include the following beneficial effects:

[0020] The ink tank system includes a temperature-regulating tank and an ink printing tank. The temperature-regulating tank is equipped with a temperature-regulating coil and is fixedly installed at the bottom of the ink printing tank to form a receiving cavity. The receiving cavity is filled with liquid medium. During use, the water in the temperature-regulating coil exchanges heat with the liquid medium in the receiving cavity, and the liquid medium also exchanges heat with the ink in the ink printing tank. Through indirect temperature regulation, the ink temperature can be precisely controlled, and the effects of temperature difference stress on the ink can be avoided, thus ensuring the stability of ink performance. Attached Figure Description

[0021] Figure 1This is a structural schematic diagram of one embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of an ink tank according to an embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of one embodiment of the present invention.

[0024] Figure 4 This is a comparative schematic diagram of the present invention.

[0025] Figure 5 This is a comparative schematic diagram of the ink tank of this utility model.

[0026] The components include: temperature control device 1, circulating pump 11, temperature control equipment 12, water storage tank 13, ink tank 2, ink printing tank 21, temperature control tank 22, temperature control coil 221, water inlet 2211, water return outlet 2212, replenishment outlet 222, discharge outlet 223, receiving cavity 23, return pipe 31, pressure regulating valve 311, water outlet pipe 32, printing roller 4, ink bucket 5, ink pipe 6, ink pump 7, doctor blade 8, and pressing roller 9. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The following is in conjunction with the appendix Figures 1 to 5 The technical solution of an embodiment of the present invention, namely an ink tank system for a gravure printing machine that facilitates ink temperature adjustment, will be further illustrated through specific implementation methods.

[0031] An ink tank system for a gravure printing machine that facilitates the adjustment of ink temperature includes a temperature control device 1 and an ink tank 2.

[0032] The ink tank 2 includes an ink printing tank 21 and a temperature regulating tank 22, wherein the ink printing tank 21 is used to hold ink.

[0033] The temperature regulating tank 22 is installed at the bottom of the ink printing tank 21. The ink printing tank 21 and the temperature regulating tank 22 together form a receiving cavity 23, which is used to contain liquid media.

[0034] A temperature regulating coil 221 is installed inside the temperature regulating tank 22. The inlet 2211 and outlet 2212 of the temperature regulating coil 221 pass through the side wall of the temperature regulating tank 22. The inlet 2211 and outlet 2212 of the temperature regulating coil 221 are respectively connected to the temperature regulating device 1. The temperature regulating device 1 is equipped with a circulation pump 11. The temperature regulating coil 221 and the temperature regulating device 1 are connected to form a circulation loop. The temperature regulating device 1 is used to regulate the temperature of the water flowing through the temperature regulating coil 221.

[0035] Currently, the ink tank structure of a common gravure printing press is as follows: Figure 4 and Figure 5As shown, the ink tank 2 is placed directly below the printing roller 4. The ink container 5 contains the required ink. The ink is drawn into the ink tank 2 through the ink pipe 6 and the ink pump 7. The ink flows back to the ink container 5 by gravity through the groove opening, thus completing the ink circulation process and ensuring the fluidity of the ink. The printing roller 4 is partially immersed in the ink, and its rotation causes the ink to be adsorbed onto its surface. The excess ink is scraped flat by the scraper 8 and flows back into the ink tank 2. The ink adsorbed in the grooves of the printing roller 4 forms a printed pattern on the film surface between the printing roller 4 and the pressure roller 9. The subsequent processes of drying in an oven, setting, and rewinding complete the film printing process. Although the above printing process can ensure the fluidity of the ink, the ink is still affected by the ambient temperature. When the temperature is low, the ink is prone to clumping, while when the temperature is high, the ink is prone to deterioration. Ensuring the flow of ink solely through the above circulation loop cannot guarantee the stability of the ink performance. To solve the problems existing in the prior art, this utility model proposes an ink tank system for gravure printing machines that facilitates the adjustment of ink temperature, such as... Figure 1 and Figure 2As shown, the device includes a temperature control device 1 and an ink tank 2. The ink tank 2 includes an ink printing tank 21 and a temperature control tank 22. The ink printing tank 21 is used to hold ink, facilitating ink adsorption onto the printing roller 4 for subsequent printing. The temperature control tank 22 is fixedly installed at the bottom of the ink printing tank 21. A temperature control coil 221 is installed inside the temperature control tank 22. The temperature control coil 221 is connected to the temperature control device 1 to form a circulation loop. Under the action of the temperature control device 1, cold or hot water circulates in the temperature control coil 221. The ink printing tank 21 and the temperature control tank 22 together form a receiving cavity 23, which holds a liquid medium. The liquid medium and the ink are separated only by the ink printing tank 21. The cold or hot water in the temperature control coil 221 exchanges heat with the liquid medium, thereby changing the temperature of the liquid medium. The liquid medium, in turn, changes the temperature of the ink through the ink printing tank 21, thus achieving temperature control of the ink. Moreover, compared to directly placing the temperature-regulating coil 221 in the ink to change the ink temperature, the temperature-regulating coil 221 occupies a larger space and has certain gaps, which increases the amount of ink required. Ink soaked in the gaps of the temperature-regulating coil 221 cannot be used up. Since ink mixing is generally a one-time use, the remaining ink after the order is completed is difficult to reuse, which increases waste. When chilled water flows in the temperature-regulating coil 221, condensation is easily generated, affecting the quality of the ink. In this ink tank system, the receiving cavity 23 is filled with a liquid medium. The temperature of the liquid medium and the ink are consistent to a certain extent. Heat is first exchanged between the temperature-regulating coil 221 and the liquid medium, and then the temperature of the ink is changed by the liquid medium. That is, this ink tank system can ensure that the quality of the ink is not affected by condensation and can transfer heat stably, enabling more precise control of the ink temperature and solving the problem of unstable ink performance due to the influence of ambient temperature.

[0036] Furthermore, compared to directly using a liquid medium at the required temperature to change the ink temperature, this structure for indirectly regulating ink temperature can prevent the ink temperature from rising or falling too quickly, thereby avoiding the separation, precipitation, or deterioration of ink components due to temperature shock. This better solves the current problem of unstable ink performance, improves printing results, increases production speed, and enhances the stability and efficiency of product processing quality.

[0037] Preferably, the liquid medium can be water, an aqueous solution of ethylene glycol, or silicone oil. When the liquid medium is water, its high specific heat capacity results in a relatively gentle and stable temperature change, allowing the ink tank system to control the ink temperature more precisely.

[0038] Preferably, the return water port 2212 of the temperature regulating coil 221 is connected to the temperature regulating device 1 through a return pipe 31, and the return pipe 31 is provided with a pressure regulating valve 311 and a pressure gauge.

[0039] Specifically, such as Figure 1 As shown, the return pipe 31 is equipped with a pressure regulating valve 311 and a pressure gauge. In the circulation loop formed by the temperature regulating coil 221 and the temperature regulating device 1, the operator can observe the pressure of the water flowing in the circulation loop in real time through the pressure gauge located on the return pipe 31. Based on the water pressure observed by the pressure gauge, the operator can adjust the water pressure through the pressure regulating valve 311 to control the water flow rate, that is, adjust the flow rate of the water flowing through the temperature regulating coil 221. The faster the water flow rate, the faster the heat is carried away, the faster the heat exchange rate, and the faster the cooling or heating rate. By controlling the heat exchange rate between the water flowing through the temperature regulating coil 221 and the liquid medium, the temperature of the ink can be better controlled.

[0040] Preferably, the side wall of the temperature regulating tank 22 is provided with a replenishment port 222, and the replenishment port 222 is located at the upper part of the side wall of the temperature regulating tank 22; the bottom of the temperature regulating tank 22 is provided with a discharge port 223, and the replenishment port 222 and the discharge port 223 are respectively provided with valves.

[0041] Specifically, such as Figure 2 As shown, the temperature-regulating tank 22 is provided with a replenishment port 222 and a discharge port 223. The liquid medium enters the receiving cavity 23 through the replenishment port 222 and exits the receiving cavity 23 through the discharge port 223. The ink printing tank 21 is fixedly connected to the temperature-regulating tank 22, and the receiving cavity 23 is sealed. The replenishment port 222 and the discharge port 223 facilitate the replacement of the liquid medium inside the receiving cavity 23, preventing deterioration and odor generation, and ensuring the normal operation of the entire system. Simultaneously, the replenishment port 222 is located at a high position on the side wall of the temperature-regulating tank 22, ensuring that the liquid medium fully contacts the entire bottom of the ink printing tank 21, achieving good heat conduction between the liquid medium and the ink contained in the ink printing tank 21.

[0042] Furthermore, valves are provided at the replenishment port 222 and the outlet to ensure that the liquid medium does not leak out, and to facilitate the replenishment and discharge of the liquid medium.

[0043] Preferably, the temperature regulating coil 221 is made of stainless steel, the wall thickness of the temperature regulating coil 221 is 1-1.2mm, and the diameter of the temperature regulating coil 221 is 20-21mm.

[0044] Specifically, since the temperature regulating coil 221 is placed in the liquid medium, and the material of the temperature regulating coil 221 is stainless steel, stainless steel has corrosion resistance, which extends the service life of the temperature regulating coil 221, and thus extends the service life of the entire system.

[0045] Furthermore, the wall thickness of the temperature regulating coil 221 is 1-1.2 mm, which shortens the heat transfer path and allows heat to be quickly transferred between the liquid medium and the water in the temperature regulating coil 221. At the same time, the diameter of the temperature regulating coil 221 is 20-21 mm, which ensures the mechanical strength of the temperature regulating coil 221 while ensuring that the temperature regulating coil 221 has a large heat exchange area, improving heat exchange efficiency and more quickly regulating the temperature of the liquid medium, thereby regulating the temperature of the ink.

[0046] Preferably, the temperature regulating coil 221 is located on the same horizontal plane, and the temperature regulating coil 221 is bent back and forth along the long side of the temperature regulating groove 22 in a continuous S-shape.

[0047] Specifically, the temperature regulating coil 221 is periodically bent back and forth along the long side of the temperature regulating groove 22, forming a continuous S-shape, and is located on the same horizontal plane. Within a certain space of the receiving cavity 23, long-path heat exchange can be achieved, effectively improving the space utilization rate of the temperature regulating coil 221. At the same time, when water flows in the temperature regulating coil 221, it needs to constantly change the flow direction, which will generate strong secondary circulation, destroy the thermal boundary layer, improve the heat transfer coefficient, improve the heat transfer efficiency, and facilitate the exchange of heat between the water flowing in the temperature regulating coil 221 and the liquid medium.

[0048] Preferably, the temperature regulating tank 22 is a box-shaped structure with an open top, and the temperature regulating tank 22 is fixedly installed at the bottom of the ink printing tank 21 by full welding.

[0049] Specifically, the temperature regulating tank 22 is a box-shaped structure with an open top, and the temperature regulating tank 22 is fully welded to the ink printing tank 21. This ensures that the temperature regulating tank 22 has a large space to accommodate the temperature regulating coil 221 and the liquid medium, while preventing water leakage between the temperature regulating tank 22 and the ink printing tank 21, thus ensuring the normal operation of the system.

[0050] Preferably, the temperature regulating bath 22 is made of stainless steel.

[0051] Specifically, the temperature regulating tank 22 is made of stainless steel, which has excellent corrosion resistance, is not easy to rust, and extends the service life of the system. At the same time, stainless steel has moderate thermal conductivity, which helps to maintain the stability of the liquid medium in the receiving cavity 23, reduces the impact of external temperature fluctuations on the temperature of the liquid medium, thereby improving the stability of the ink tank system and further improving the accuracy of temperature regulation.

[0052] Preferably, the temperature regulating device 1 further includes a temperature control device 12 and a water storage tank 13. The temperature control device 12 is used to regulate the temperature of the water provided by the water storage tank 13. The temperature control device 12 is connected to the water storage tank 13. The circulating pump 11 connects the water storage tank 13 to the temperature regulating coil 221. The return water port 2212 of the temperature regulating coil 221 is connected to the water storage tank 13.

[0053] Specifically, such as Figure 1 As shown, the temperature control device 12 adjusts the temperature of the water supplied by the water storage tank 13. The water in the water storage tank 13 is pumped to the temperature control device 12 by the water pump in the temperature regulating device 1. The temperature control device 12 heats or cools the input water, and delivers the water to the water storage tank 13 when it reaches the set temperature. The water in the water storage tank 13 flows through the circulation pump 11, through the inlet 2211 of the temperature regulating coil 221, and flows back to the water storage tank 13 through the return outlet 2212, forming a circulation loop. This ensures that the water in the temperature regulating coil 221 has sufficient heat exchange with the liquid medium, thereby achieving the purpose of regulating the ink temperature.

[0054] Preferably, the temperature control device 12 is a commercially available water circulation heating and cooling unit, used to heat or cool the water entering from the water storage tank 13 to reach the set temperature.

[0055] Preferably, the temperature regulating coil 221 is located at the bottom of the temperature regulating tank 22, and the temperature regulating coil 221 does not contact the ink printing tank 21.

[0056] Specifically, such as Figure 3 As shown, the temperature regulating coil 221 does not directly contact the ink printing tank 21, that is, the temperature regulating coil 221 does not directly exchange heat with the ink printing tank 21, ensuring that the temperature of the ink is regulated by the liquid medium, ensuring uniform temperature change of the ink, avoiding local temperature differences in the ink, and thus ensuring the stability of the ink.

[0057] Preferably, the inlet 2211 of the temperature regulating coil 221 is connected to the temperature regulating device 1 through the outlet pipe 32, the inlet 2211 of the temperature regulating coil 221 is connected to the outlet pipe 32 through a quick connector, and the return port 2212 of the temperature regulating coil 221 is connected to the return pipe 31 through a quick connector.

[0058] Specifically, such as Figure 1As shown, the inlet 2211 and outlet 2212 of the temperature regulating coil 221 are connected to the outlet pipe 32 and return pipe 31 via quick connectors. The inlet 2211 and outlet 2212 of the temperature regulating coil 221 pass through the side wall of the temperature regulating tank 22. The quick connectors facilitate the installation and disassembly of the temperature regulating tank 22 with the outlet pipe 32 and the return pipe 31, and facilitate the maintenance of the ink tank 2 system.

[0059] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An ink tank system for a gravure printing machine that facilitates ink temperature adjustment, characterized in that: Includes temperature control device and ink tank; The ink tank includes an ink printing tank and a temperature regulating tank, wherein the ink printing tank is used to hold ink. The temperature regulating tank is installed at the bottom of the ink printing tank, and the ink printing tank and the temperature regulating tank together form a receiving cavity, which is used to contain the liquid medium. A temperature regulating coil is installed inside the temperature regulating tank. The inlet and outlet of the temperature regulating coil are inserted through the side wall of the temperature regulating tank, and the inlet and outlet of the temperature regulating coil are respectively connected to the temperature regulating device. The temperature regulating device is equipped with a circulation pump. The temperature regulating coil and the temperature regulating device are connected to form a circulation loop. The temperature regulating device is used to regulate the temperature of the water flowing through the temperature regulating coil.

2. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The return water inlet of the temperature regulating coil is connected to the temperature regulating device through a return pipe, and the return pipe is equipped with a pressure regulating valve and a pressure gauge.

3. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating tank has a replenishment port on its side wall, and the replenishment port is located at the upper part of the side wall of the temperature regulating tank; the bottom of the temperature regulating tank has a discharge port, and the replenishment port and the discharge port are respectively equipped with valves.

4. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating coil is made of stainless steel, with a wall thickness of 1-1.2 mm and a diameter of 20-21 mm.

5. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating coils are located on the same horizontal plane, and the temperature regulating coils are bent back and forth along the long side of the temperature regulating groove in a continuous S-shape.

6. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating tank is a box-shaped structure with an open top, and it is fixedly installed at the bottom of the ink printing tank by full welding.

7. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating bath is made of stainless steel.

8. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature control device also includes a temperature control device and a water storage tank. The temperature control device is used to adjust the temperature of the water supplied by the water storage tank. The temperature control device is connected to the water storage tank. The circulating pump connects the water storage tank and the temperature control coil. The return water port of the temperature control coil is connected to the water storage tank.

9. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 1, characterized in that: The temperature regulating coil is located at the bottom of the temperature regulating tank, and the temperature regulating coil is not in contact with the ink printing tank.

10. The ink tank system for a gravure printing machine with easily adjustable ink temperature according to claim 2, characterized in that: The inlet of the temperature regulating coil is connected to the temperature regulating device through an outlet pipe. The inlet of the temperature regulating coil is connected to the outlet pipe through a quick connector. The return port of the temperature regulating coil is connected to the return pipe through a quick connector.

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