Cooling device for waterless offset printing
By setting circular through holes and conveying components inside the cooling roller, combined with a water pump and water tank circulation system, the problem of uneven cooling of the cooling roller in waterless offset printing is solved, achieving uniform cooling of the cooling roller surface and improving printing quality.
Patent Information
- Application Number
- CN202520523533.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing waterless offset printing cooling rollers cannot achieve uniform cooling when using threaded cooling channels, resulting in poor cooling performance.
Multiple circular through holes are set inside the cooling roller, and the cooling water is made to flow evenly through the conveying and connecting components. Combined with the circulation system of water pump and water tank, the cooling water is ensured to be evenly distributed on the surface of the roller.
This achieves uniform cooling of the cooling roller surface, improving the processing quality and printing effect of the waterless offset printing machine.
Smart Images

Figure CN223812417U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of offset press, especially a cooling device for waterless offset printing. BACKGROUND
[0002] Waterless offset printing uses a silicon coating on the printing plate as a non-printing area, eliminating water ink balance control, and also eliminating the use of water as a medium. From the perspective of printing quality, waterless offset printing makes the printing dots more sharp and better, and has the ability to achieve higher line numbers and contrast.
[0003] The patent application with the publication number CN215360393U in the prior art is provided, which is internally provided with a cooling water tank, a booster pump is arranged on one side of the cooling water tank, the cooling liquid in the cooling water tank is extracted through the booster pump, the output end of the booster pump is connected with a water outlet pipeline, the extracted cooling liquid flows out from the water outlet pipeline, the other side of the cooling water tank is connected with a water inlet pipeline, the heat is taken away after cooling, the cooling liquid flows back to the cooling water tank from the water inlet pipeline, the water outlet pipeline and the water inlet pipeline are connected with the roller body, and the cooling liquid realizes the circulation water cooling of the roller body through the water outlet pipeline and the water inlet pipeline, thereby improving the processing quality of the waterless offset press.
[0004] However, in order to facilitate the cooling operation of the cooling roller, a threaded cooling flow channel is arranged in the cooling roller to transport cooling water. However, when the threaded cooling flow channel is used to flow the cooling water, the cooling roller cannot uniformly cool and cool down.
[0005] Therefore, it is necessary to provide a cooling device for waterless offset printing to solve the above technical problems. CONTENT OF THE UTILITY MODEL
[0006] The utility model provides a cooling device for waterless offset printing, which solves the problem that the cooling roller cannot uniformly cool and cool down when the threaded cooling flow channel is used to flow the cooling water.
[0007] To solve the above technical problems, the utility model provides a cooling device for waterless offset printing, which comprises:
[0008] The operation table, the conveying belt and the cooling roller are internally provided with a plurality of circular through holes, a plurality of conveying assemblies are arranged between the circular through holes, the conveying assembly comprises a plurality of communication mounting heads, a plurality of connecting heads and an annular conveying pipe, the plurality of communication mounting heads are respectively mounted in the plurality of circular through holes, the plurality of connecting heads are respectively connected to one end of the plurality of communication mounting heads, and the annular conveying pipe is connected between the plurality of connecting heads.
[0009] The connecting components are provided in pairs, with each pair of connecting components being disposed at one end of the cooling roller.
[0010] Preferably, the connecting assembly includes a connecting pipe, a rotary connector, and a conveying pipe, wherein the rotary connector is connected to one end of the connecting pipe, the conveying pipe is connected to one side of the rotary connector, and the other end of the conveying pipe is connected to one of the connectors.
[0011] Preferably, both ends of the cooling roller are connected to a circular connecting rod, and one end of the connecting pipe is connected to a plug.
[0012] Preferably, a water tank is installed at the bottom of the operating platform, and a water pump is installed on one side of the water tank.
[0013] Preferably, a groove is formed on one side of the surface of the circular connecting rod.
[0014] Preferably, a disassembly assembly is provided between the connecting tube and the rotary connector. The disassembly assembly includes a circular tube, a disassembly sleeve, and a disassembly head. The circular tube is connected to one end of the rotary connector, and the disassembly sleeve is connected to one end of the circular tube.
[0015] Preferably, the disassembly head is connected to one end of the disassembly sleeve, and one end of the disassembly head is connected to the connecting tube.
[0016] Compared with related technologies, the cooling device for waterless offset printing provided by this utility model has the following beneficial effects:
[0017] This utility model provides a cooling device for waterless offset printing. Multiple circular through holes are opened inside the cooling roller to cooperate with two sets of conveying components and two connecting components. This allows cooling water to flow through the multiple circular through holes on the side of the cooling roller during the cooling operation, thereby making the surface of the cooling roller uniformly cooled. Attached Figure Description
[0018] Figure 1 A schematic diagram of the structure of a first embodiment of a cooling device for waterless offset printing provided by this utility model;
[0019] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the cooling roller from a first-view perspective.
[0020] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;
[0021] Figure 4 for Figure 1A three-dimensional structural diagram of the cooling roller from a second perspective;
[0022] Figure 5 for Figure 4 The enlarged schematic diagram of section C is shown below;
[0023] Figure 6 A schematic diagram of the structure of a second embodiment of a cooling device for waterless offset printing provided by this utility model;
[0024] Figure 7 for Figure 6 The enlarged schematic diagram of section C is shown.
[0025] Labels in the diagram: 1. Control panel; 2. Conveyor belt; 3. Cooling roller; 4. Circular through hole;
[0026] 5. Conveying assembly; 51. Connecting mounting head; 52. Connecting head; 53. Annular conveying pipe;
[0027] 6. Connecting components; 61. Connecting pipe; 62. Rotary connector; 63. Conveying pipe;
[0028] 7. Circular connecting rod; 8. Plug; 9. Groove;
[0029] 10. Disassembly of components; 101. Circular tube; 102. Disassembly sleeve; 103. Disassembly head;
[0030] 11. Water tank; 12. Water pump. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0032] First Embodiment
[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a cooling device for waterless offset printing provided by this utility model; Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the cooling roller from a first-view perspective. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 A three-dimensional structural diagram of the cooling roller from a second perspective; Figure 5 for Figure 4 The enlarged schematic diagram of section C is shown. A cooling device for waterless offset printing includes:
[0034] The operation table 1, the conveying belt 2 and the cooling roller 3, the inside of the cooling roller 3 is provided with a plurality of circular through holes 4, a plurality of conveying assemblies 5 are arranged between the plurality of circular through holes 4, the conveying assembly 5 comprises a plurality of communication mounting heads 51, a plurality of connecting heads 52 and an annular conveying pipe 53, the plurality of communication mounting heads 51 are respectively arranged in the plurality of circular through holes 4, the plurality of connecting heads 52 are respectively connected to one end of the plurality of communication mounting heads 51, and the annular conveying pipe 53 is connected between the plurality of connecting heads 52.
[0035] The connecting assembly 6 is two in number and is arranged at two ends of the cooling roller 3.
[0036] The plurality of communication mounting heads 51 are in threaded connection with the circular through holes 4 arranged on the cooling roller 3, the inside of the connecting head 52 is also provided with a through hole, so that the liquid can be conveyed, a pipeline is connected between the water pump 12 and the water tank 11, two connecting pipes 61 are respectively connected to the output end of the water pump 12 and one side of the water tank 11, so as to play a circulating operation, and a filling pipe is arranged on the surface of the water tank 11, so as to facilitate filling of the liquid in the water tank 11.
[0037] The connecting assembly 6 comprises a connecting pipe 61, a rotating connecting head 62 and a conveying pipe 63, the rotating connecting head 62 is connected to one end of the connecting pipe 61, the conveying pipe 63 is connected to one side of the rotating connecting head 62, and the other end of the conveying pipe 63 is connected to one of the connecting heads 52.
[0038] The two ends of the cooling roller 3 are connected with circular communication rods 7, and one end of the connecting pipe 61 is connected with a plug 8.
[0039] The circular communication rod 7 is used to facilitate mounting of the cooling roller 3 on the operation table 1.
[0040] The bottom of the operation table 1 is provided with a water tank 11, and one side of the water tank 11 is provided with a water pump 12.
[0041] One side of the surface of the circular communication rod 7 is provided with a groove 9.
[0042] The working principle of the cooling device for waterless offset printing provided by the utility model is as follows:
[0043] When the cooling roller 3 is used to cool the object, the water pump 12 is started first to send the water in the water tank 11 to the inside of one of the connecting heads 52 through one of the connecting pipes 61, the rotating connecting head 62 and the delivery pipe 63, and then the liquid is sent to the inside of the plurality of connecting heads 52 through the annular delivery pipe 53, and then the liquid is sent to the inside of the plurality of circular through holes 4 in the cooling roller 3 through the plurality of connecting installation heads 51, and then the liquid in the plurality of circular through holes 4 is sent to the inside of the water tank 11 through the other set of delivery assemblies 5 and the connecting assemblies 6 for recycling.
[0044] Compared with the related art, the cooling device for waterless offset printing has the following beneficial effects:
[0045] The cooling device for waterless offset printing has the plurality of circular through holes 4 in the inside of the cooling roller 3, and the two sets of delivery assemblies 5 and the two connecting assemblies 6 are used, so that the cooling water can flow through the plurality of circular through holes 4 at the edge side position in the inside of the cooling roller 3 during the cooling operation, and the surface of the cooling roller 3 is uniformly cooled.
[0046] Second embodiment
[0047] Please refer to Figure 6 and Figure 7 Based on the first embodiment of the application, the second embodiment of the application provides another cooling device for waterless offset printing. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.
[0048] Specifically, the difference between the cooling device for waterless offset printing provided by the second embodiment of the application is that the cooling device for waterless offset printing is provided with a dismounting assembly 10 between the connecting pipe 61 and the rotating connecting head 62, the dismounting assembly 10 comprises a circular pipe 101, a dismounting sleeve 102 and a dismounting head 103, one end of the circular pipe 101 is connected to the rotating connecting head 62, and one end of the dismounting sleeve 102 is connected to the circular pipe 101.
[0049] The dismounting head 103 is connected to one end of the dismounting sleeve 102, and one end of the dismounting head 103 is connected to the connecting pipe 61.
[0050] The dismounting sleeve 102 and the dismounting head 103 are connected through threads, and through holes are formed in the inside of the dismounting sleeve 102 and the dismounting head 103 to facilitate the flow of liquid.
[0051] The working principle of the cooling device for waterless offset printing provided by the utility model is as follows:
[0052] When the cooling roller 3 is installed, the circular tube 101 is first pulled to separate the dismounting sleeve 102 from the dismounting head 103, and then the cooling roller 3 can be installed.
[0053] Compared with the related art, the cooling device for waterless offset printing has the following beneficial effects:
[0054] The cooling device for waterless offset printing is provided with the dismounting assembly 10 between the connecting pipe 61 and the rotary connecting head 62, so that the connecting pipe 61 can be easily dismounted when the cooling roller 3 is installed, and blockage is prevented.
[0055] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.
Claims
1. A cooling device for waterless offset printing, characterized in that Including: The operating platform, the conveying belt and the cooling roller, the inside of the cooling roller is provided with a plurality of circular through holes, a plurality of conveying assemblies are arranged between the plurality of circular through holes, the conveying assembly comprises a plurality of communication installation heads, a plurality of connecting heads and an annular conveying pipe, the plurality of communication installation heads are respectively installed in the plurality of circular through holes, the plurality of connecting heads are respectively connected to one end of the plurality of communication installation heads, and the annular conveying pipe is connected between the plurality of connecting heads; The connecting assembly is two, and the two connecting assemblies are respectively arranged at the two ends of the cooling roller.
2. Cooling device for waterless offset printing according to claim 1, characterized in that The connecting assembly comprises a connecting pipe, a rotating connecting head and a conveying pipe, the rotating connecting head is connected to one end of the connecting pipe, the conveying pipe is connected to one side of the rotating connecting head, and the other end of the conveying pipe is connected with one of the connecting heads.
3. Cooling device for waterless offset printing according to claim 2, characterized in that The two ends of the cooling roller are connected with circular communication rods, and one end of the connecting pipe is connected with a plug.
4. The cooling device for waterless offset printing according to claim 1, wherein The bottom of the operating platform is provided with a water tank, and one side of the water tank is provided with a water pump.
5. The cooling device for waterless offset printing according to claim 3, wherein One side of the surface of the circular communication rod is provided with a groove.
6. The cooling device for waterless offset printing according to claim 2, wherein The connecting pipe and the rotating connecting head are provided with a dismounting assembly, the dismounting assembly comprises a circular pipe, a dismounting sleeve and a dismounting head, one end of the circular pipe is connected with the rotating connecting head, and one end of the dismounting sleeve is connected with the circular pipe.
7. Cooling device for waterless offset printing according to claim 6, characterized in that The dismounting head is connected to one end of the dismounting sleeve, and one end of the dismounting head is connected with the connecting pipe.
Citation Information
Patent Citations
Cooling device of waterless offset press
CN215360393U