Printing ink fluidity keeping device

Abstract

The utility model relates to a printing ink fluidity keeping device which comprises a constant-temperature pool, an ink barrel, a water pump, a controller and a variable-pitch pipeline, a cover plate is arranged at the upper end of the constant-temperature pool, the ink barrel, the water pump and the controller are all installed on the cover plate, the two ends of the variable-pitch pipeline are erected on the constant-temperature pool, and the lower end of the variable-pitch pipeline sinks into the constant-temperature pool. An inlet of the variable-pitch pipeline is connected with the water pump, an outlet of the variable-pitch pipeline is connected with the upper end of the printing ink barrel, the lower end of the printing ink barrel is connected with the water pump through a pipeline, the inlet and the outlet of the variable-pitch pipeline are respectively provided with a main electromagnetic valve, and the controller is electrically connected with the water pump and the main electromagnetic valves. According to the device, the fluidity of printing ink can be kept through pumping and heat exchange methods, so that the printing ink can be supplied for printing operation at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of printing ink, in particular to a fluidity maintaining device for printing ink. Background Art

[0002] Ink is an important material for printing. It is a viscous colloidal fluid composed of resin, pigment, filler, additives and solvent, etc., and is formed by uniform mixing and repeated rolling. Some raw materials of ink are supplied in barrels and stored in a cool and dry warehouse, and their storage time can be relatively long. Due to the uncertainty of production orders, some printing ink needs to be stored for a long time after being prepared. Its fluidity gradually becomes worse over time. When put into production, insufficient fluidity will lead to uneven distribution of the ink, resulting in many problems such as insufficient ink reception on the printing plate and printing plate smudging, leading to unqualified printed products. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a fluidity maintaining device for printing ink, which can maintain the fluidity of printing ink through pumping and heat exchange methods to supply printing operations at any time.

[0004] The technical solution of the utility model is: a fluidity maintaining device for printing ink, including a constant temperature pool, an ink barrel, a water pump, a controller and a variable pitch pipeline. A cover plate is provided at the upper end of the constant temperature pool. The ink barrel, the water pump and the controller are all installed on the cover plate. Both ends of the variable pitch pipeline are erected on the constant temperature pool, and the lower end of the variable pitch pipeline sinks into the constant temperature pool. The inlet of the variable pitch pipeline is connected to the water pump, and the outlet of the variable pitch pipeline is connected to the upper end of the ink barrel. A pipeline is connected between the lower end of the ink barrel and the water pump. Total path solenoid valves are provided at both the inlet and outlet of the variable pitch pipeline, and the controller is electrically connected to the water pump and the total path solenoid valves respectively.

[0005] Further, a feed pipe is provided at the upper end of the ink barrel.

[0006] Further, a discharge pipe is provided at one end of the water pump.

[0007] Further, a sponge cushion layer is provided at the bottom of the constant temperature pool, and the variable pitch pipeline is erected on the sponge cushion layer.

[0008] Further, a heating component and a temperature measuring component are provided in the constant temperature pool, and the controller is electrically connected to the heating component and the temperature measuring component respectively.

[0009] Further, heat dissipation openings are left on both sides after the cover plate is connected to the constant temperature pool.

[0010] Furthermore, the variable-pitch pipeline includes a main pipeline, a secondary pipeline, and a plurality of sub-pipelines. The two ends of the main pipeline are respectively connected to a water pump and an ink bucket. Both ends of the secondary pipeline are connected to the main pipeline. A loop pipeline is formed between the main pipeline and the secondary pipeline. A plurality of sub-pipelines are installed in the loop pipeline. Both ends of the plurality of sub-pipelines are respectively connected to the main pipeline and the secondary pipeline. Main path solenoid valves are provided at both ends of the connection nodes between the main pipeline and the plurality of sub-pipelines. Sub-path solenoid valves are provided at both ends of the connection nodes between the secondary pipeline and the plurality of sub-pipelines. The main path solenoid valves and the sub-path solenoid valves are electrically connected to the controller. The plurality of sub-pipelines are sunk into a constant temperature pool.

[0011] Furthermore, notches are provided at both ends of the constant temperature pool, and both ends of the loop pipeline are mounted in the notches.

[0012] Furthermore, the plurality of sub-pipelines are all of spiral structure.

[0013] Compared with the prior art, the advantages of the present utility model are as follows: A cover plate is provided at the upper end of the constant temperature pool, which can prevent the heat loss of the constant temperature water while providing an installation position for other components; The constant temperature pool stores warm water at 25-28°C. The two ends of the variable-pitch pipeline are mounted on the constant temperature pool, and the lower end of the variable-pitch pipeline sinks into the warm water of the constant temperature pool to exchange heat with the warm water, so as to keep the temperature of the printing ink at 20-25°C, which helps to restore and maintain the fluidity of the printing ink; The printing ink stored in the ink bucket is pumped by the water pump, exchanges heat and is insulated in the constant temperature pool through the variable-pitch pipeline, and continuously flows back to the ink bucket, ensuring that the printing ink in the ink bucket maintains a certain fluidity under the appropriate temperature and pipeline transportation, and can be supplied to the printing operation at any time; The controller is electrically connected to the water pump and the main path solenoid valve respectively. The opening and closing of the pipeline and the start and stop of the water pump can be controlled on the controller, and the operation of the pipeline can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the constant temperature pool of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the variable-pitch pipeline of the present utility model;

[0018] Figure 4 is a schematic working principle diagram of the present utility model.

[0019] Wherein: 1. Constant temperature pool; 101. Notch; 2. Ink bucket; 3. Water pump; 4. Controller; 5. Cover plate; 6. Heat dissipation port; 7. Feed pipe; 8. Discharge pipe; 9. Heating component; 10. Temperature measuring component; 11. First solenoid valve; 12. Second solenoid valve; 13. Third solenoid valve; 14. Fourth solenoid valve; 15. Fifth solenoid valve; 16. Sixth solenoid valve; 17. Seventh solenoid valve; 18. Eighth solenoid valve; 19. Ninth solenoid valve; 20. Tenth solenoid valve; 21. Eleventh solenoid valve; 22. Twelfth solenoid valve; 23. Thirteenth solenoid valve; 24. Main pipeline; 25. Sub-pipeline; 26. Secondary pipeline; 27. Sponge cushion layer; 28. Water. Detailed implementation mode

[0020] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation mode, structure, features and their effects of the present invention as follows.

[0021] As Figures 1-4 shown, a device for maintaining the fluidity of printing ink includes a constant temperature pool 1, an ink bucket 2, a water pump 3, a controller 4 and a variable pitch pipeline. The constant temperature pool 1 stores warm water at 25 - 28 °C. A cover plate 5 is provided at the upper end of the constant temperature pool 1 to prevent the heat loss of the constant temperature water and provide an installation position for other components. The ink bucket 2, the water pump 3 and the controller 4 are all installed on the cover plate 5. The printing ink is stored in the ink bucket 2. Both ends of the variable pitch pipeline are erected on the constant temperature pool 1, and the lower end of the variable pitch pipeline sinks into the warm water of the constant temperature pool 1 to exchange heat with the warm water and keep the temperature of the printing ink at 20 - 25 °C. The inlet of the variable pitch pipeline is connected to the water pump 3, and the outlet of the variable pitch pipeline is connected to the upper end of the ink bucket 2. A pipeline is connected between the lower end of the ink bucket 2 and the water pump 3. The printing ink stored in the ink bucket 2 is pumped by the water pump 3, exchanges heat and is insulated in the constant temperature pool 1 through the variable pitch pipeline, and continuously flows back to the ink bucket 2 to ensure that the printing ink in the ink bucket 2 maintains a certain fluidity under suitable temperature and pipeline transportation and is supplied to the printing operation at any time. Total path solenoid valves are provided at both the inlet and outlet of the variable pitch pipeline. The controller 4 is electrically connected to the water pump 3 and the total path solenoid valves respectively, and the opening and closing of the pipeline and the start and stop of the water pump 3 can be controlled on the controller 4 to control the operation of the pipeline.

[0022] In the above embodiments, a feed pipe 7 is provided at the upper end of the ink bucket 2, so that the printing ink can be replenished without lifting the bucket lid. One end of the water pump 3 is provided with a discharge pipe 8, and the printing ink can be pumped to the printing operation end through the water pump 3. A sponge cushion layer 27 is provided at the bottom of the constant temperature pool 1, and the variable-distance pipe is erected on the sponge cushion layer 27, with its lower end sinking into the sponge cushion layer 27, and both ends of it can still be stably erected in the constant temperature pool 1; the sponge cushion layer 27 can not only provide a certain supporting force for the variable-distance pipe, but also prevent the two ends of the variable-distance pipe from being deformed due to excessive force when erected in the constant temperature pool 1. A heating component 9 and a temperature measuring component 10 are provided in the constant temperature pool 1, and the controller 4 is electrically connected to the heating component 9 and the temperature measuring component 10 respectively. The temperature of the water in the constant temperature pool 1 can be monitored through the controller 4, and the water temperature can be adjusted. Both sides of the cover plate 5 are provided with heat dissipation openings 6 after being connected to the constant temperature pool 1. It can not only observe the situation in the constant temperature pool 1 through the heat dissipation openings 6, but also help to maintain the water temperature in the constant temperature pool 1, prevent the water temperature from being too high in a short time after heating, and damage the quality of the printing ink.

[0023] In the above embodiments, the variable-distance pipe includes a main pipe 24, a sub-pipe 25 and a plurality of secondary pipes 26. Both ends of the main pipe 24 are respectively connected to the water pump 3 and the ink bucket 2. Both ends of the sub-pipe 25 are connected to the main pipe 24. A return pipe is formed between the main pipe 24 and the sub-pipe 25. A plurality of secondary pipes 26 are all installed in the return pipe. Both ends of the plurality of secondary pipes 26 are respectively connected to the main pipe 24 and the sub-pipe 25. Main path solenoid valves are provided at both ends of the plurality of connection nodes of the main pipe 24 and the plurality of secondary pipes 26, and sub-path solenoid valves are provided at both ends of the plurality of connection nodes of the sub-pipe 25 and the plurality of secondary pipes 26. The main path solenoid valves and the sub-path solenoid valves are all electrically connected to the controller 4. The plurality of secondary pipes 26 sink into the constant temperature pool 1; through the control of the controller 4, different main path solenoid valves and sub-path solenoid valves can be opened and closed to form roundabout and different-length conveying pipes, so as to change the heat exchange area of the printing ink to adapt to the characteristics of different printing inks. Both ends of the constant temperature pool 1 are provided with notches 101, and both ends of the return pipe are erected in the notches 101, further improving the stability of the installation of the return pipe. The plurality of secondary pipes 26 are all in a spiral structure, increasing the heat exchange area between the ink in the pipe and the water in the constant temperature pool 1 and improving the heat exchange effect.

[0024] The working mode of the present utility model is described as follows:

[0025] The main pipeline solenoid valves adopted by this device are the first solenoid valve 11 and the second solenoid valve 12 at the inlet and outlet of the variable pitch pipeline respectively. The main pipeline solenoid valves on the main pipeline 24 are the third solenoid valve 13, the fourth solenoid valve 14, the fifth solenoid valve 15, the sixth solenoid valve 16 and the seventh solenoid valve 17 in sequence from the inlet to the outlet of the variable pitch pipeline. The auxiliary pipeline solenoid valves on the auxiliary pipeline 25 are the eighth solenoid valve 18, the ninth solenoid valve 19, the tenth solenoid valve 20, the eleventh solenoid valve 21, the twelfth solenoid valve 22 and the thirteenth solenoid valve 23 in sequence from the inlet to the outlet of the variable pitch pipeline. By the opening and closing combination of all the above solenoid valves, a conveying pipeline with a specific length can be formed to adapt to the characteristics of different printing inks.

[0026] After the printing ink is prepared, it usually has good fluidity. At this time, the first to seventh solenoid valves 17 can be opened and other solenoid valves can be closed to realize the conduction of the main pipeline 24, and a certain fluidity of the printing ink can be maintained under the transportation of the water pump 3. After the printing ink is stored for a long time, its fluidity is insufficient. The optimal combination of this device can be adopted to restore the fluidity of the printing ink; open the first and second solenoid valves 12 to open the inlet and outlet of the variable pitch pipeline, close the third solenoid valve 13, the ninth solenoid valve 19, the fifth solenoid valve 15, the eleventh solenoid valve 21, the seventh solenoid valve 17 and the thirteenth solenoid valve 23 in sequence, and open the eighth solenoid valve 18, the fourth solenoid valve 14, the tenth solenoid valve 20, the sixth solenoid valve 16 and the twelfth solenoid valve 22 in sequence, so that the printing ink needs to pass through this pipeline with five spiral structures, obtain heat exchange with the largest area and the longest time in the constant temperature pool 1, and gradually raise the temperature of the printing ink to 20 - 25 °C, which is beneficial to the restoration of the fluidity of the printing ink; meanwhile, under the long-distance pipeline transportation, the fluidity of the printing ink is fully restored, and it can be circulated and transported after entering the ink bucket 2 to keep the printing ink with sufficient fluidity for the use at the production end.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for maintaining the fluidity of printing ink, comprising a constant temperature pool, an ink barrel, a water pump, a controller and a variable distance pipeline, characterized in that: A cover plate is provided at the upper end of the constant temperature pool, and the ink barrel, water pump and controller are all installed on the cover plate. Both ends of the variable pitch pipe are erected on the constant temperature pool, and the lower end of the variable pitch pipe is sunk into the constant temperature pool. The inlet of the variable pitch pipe is connected to the water pump, and the outlet of the variable pitch pipe is connected to the upper end of the ink barrel. The lower end of the ink barrel is connected to the water pump through a pipe. Main circuit solenoid valves are provided at the inlet and outlet of the variable pitch pipe, and the controller is electrically connected to the water pump and the main circuit solenoid valve respectively.

2. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: A feeding pipe is arranged at the upper end of the ink barrel.

3. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: One end of the water pump is provided with a discharge pipe.

4. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: A sponge cushion layer is arranged at the bottom of the constant temperature pool, and the variable distance pipeline is erected on the sponge cushion layer.

5. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: The constant temperature pool is provided with a heating component and a temperature measuring component, and the controller is electrically connected to the heating component and the temperature measuring component respectively.

6. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: Heat dissipation openings are left on both sides of the cover plate after it is connected to the constant temperature pool.

7. The device for maintaining fluidity of printing ink according to claim 1, characterized in that: The variable-pitch pipeline includes a main pipeline, a secondary pipeline and multiple secondary pipelines. Both ends of the main pipeline are respectively connected to a water pump and an ink barrel, and both ends of the secondary pipeline are connected to the main pipeline. A meandering pipeline is formed between the main pipeline and the secondary pipeline. Multiple secondary pipelines are installed in the meandering pipeline. Both ends of the multiple secondary pipelines are respectively connected to the main pipeline and the secondary pipeline. Main solenoid valves are provided at both ends of multiple connection nodes between the main pipeline and the multiple secondary pipelines, and secondary solenoid valves are provided at both ends of multiple connection nodes between the secondary pipeline and the multiple secondary pipelines. The main solenoid valves and the secondary solenoid valves are both electrically connected to a controller, and the multiple secondary pipelines are sunk into a constant temperature pool.

8. The device for maintaining fluidity of printing ink according to claim 7, characterized in that: The two ends of the constant temperature pool are provided with gaps, and the two ends of the meandering pipe are arranged in the gaps.

9. The device for maintaining fluidity of printing ink according to claim 8, characterized in that: The multiple secondary pipes are all spiral structures.

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