Printing roller for printing equipment
By setting a cooling chamber and cross-heat sink structure inside the printing roller, using cold air to exchange heat, the problem of heat accumulation of the printing roller glue layer is solved, efficient cooling is achieved, service life is extended and printing quality is improved.
Patent Information
- Application Number
- CN202422524311.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-18
AI Technical Summary
During the working process of the existing printing rollers, due to the accumulation of heat generated by the friction between the rubber layer and the material surface, the rubber layer aging, affecting the printing quality and efficiency, the existing cooling method has poor effect.
A cooling chamber is set inside the printing roller, and a copper heat sink and a heat conduction chamber are built-in, and cold air is passed through the air inlet and outlet. The heat sink is used to exchange heat with the air, and combined with external air cooling, to achieve efficient cooling.
Effectively reduce the glue layer temperature, extend the working time of the printing roller, improve service life, and improve printing quality and efficiency.
Smart Images
Figure CN223072098U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing equipment, and particularly relates to a printing roller for printing equipment. Background Art
[0002] Printing is a technology that transfers the original content such as text, pictures, photos, anti-counterfeiting, etc. to the surfaces of materials such as paper, textiles, plastics, leather, PVC, PC, etc. through processes such as plate making, ink application, and pressure application, and batch-replicates the original content. The printing roller is one of the crucial components in the printing process, and the material and texture on the surface of the printing roller have an important impact on the printing quality.
[0003] During the working process of the printing roller, the adhesive layer on its outer surface continuously contacts and rubs against the surfaces of materials such as paper and textiles, which will cause heat to accumulate on the adhesive layer, resulting in the aging of the adhesive layer, damaged performance, and affecting the printing quality and efficiency. The prior art usually uses external ventilation to cool the adhesive layer, but its cooling effect is poor. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a printing roller for printing equipment to solve the above deficiencies in the prior art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A printing roller for printing equipment includes a roller body, an adhesive layer is provided on the outer side of the roller body, a cooling cavity is opened inside the roller body, an air inlet and an air outlet are respectively opened on the rotating shafts at both ends of the roller body, and both the air inlet and the air outlet are communicated with the cooling cavity; a radiator is arranged in the cooling cavity, and the radiator includes a plurality of first heat dissipation fins and second heat dissipation fins fixedly arranged in the cooling cavity. The first heat dissipation fins and the second heat dissipation fins are arranged in a cross manner, and the first heat dissipation fins and the second heat dissipation fins are coaxially arranged with the roller body. Adjacent first heat dissipation fins and second heat dissipation fins form a heat conduction cavity. A plurality of first heat dissipation holes are opened on the first heat dissipation fins, and second heat dissipation holes are opened on the second heat dissipation fins.
[0007] Further, the first heat dissipation holes are opened at the edge of the first heat dissipation fins, and the second heat dissipation holes are opened at the center of the second heat dissipation fins.
[0008] Further, the sides of the radiator facing the air inlet and the air outlet are both first heat dissipation fins.
[0009] Further, both the first heat dissipation fins and the second heat dissipation fins are made of copper.
[0010] Further, a cooling plate is arranged in each heat conduction cavity. The cooling plate is arranged in a ring shape and is closely attached to the inner wall of the roller body, and a coolant is loaded in the cooling plate.
[0011] In the above technical solution, the beneficial effects of a printing roller for a printing device provided by the present utility model are as follows:
[0012] Through the provided radiator, the heat generated by the working of the glue layer is conducted to the cooling cavity through the roller body, and heat exchange is carried out with the air in the heat conduction cavity through the first heat dissipation fins and the second heat dissipation fins on the radiator; the cold air enters the cooling cavity through the air inlet, takes away the hot air in each heat conduction cavity through the first heat dissipation holes and the second heat dissipation holes, and flows out through the air outlet, thereby effectively cooling the glue layer; and when used in combination with external air-cooling, the cooling effect can be further improved, so that the working time of the roller body is extended and the service life is increased.
[0013] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.
[0014] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and does not represent the full scope of the disclosed technology or a complete disclosure of all features. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.
[0016] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;
[0017] Figure 2 It is a schematic diagram of the sectional structure provided by an embodiment of the present utility model;
[0018] Figure 3 It is a schematic diagram of the enlarged partial structure A provided by an embodiment of the present utility model;
[0019] Figure 4 It is a schematic diagram of the radiator structure provided by an embodiment of the present utility model;
[0020] Figure 5 It is a schematic diagram of the second heat dissipation fin structure provided by an embodiment of the present utility model.
[0021] Description of the reference numerals:
[0022] 1. Roller body; 11. Rubber layer; 2. Cooling cavity; 21. Air inlet; 22. Air outlet; 3. Radiator; 31. First heat sink fin; 32. Second heat sink fin; 33. First heat dissipation hole; 34. Second heat dissipation hole; 35. Heat conduction cavity; 4. Cooling plate. Detailed implementation manner
[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.
[0024] Please refer to Figures 1-5 , a printing roller for a printing device, including a roller body 1, a rubber layer 11 is provided on the outer side of the roller body 1, a cooling cavity 2 is opened inside the roller body 1, an air inlet 21 and an air outlet 22 are respectively opened on the rotating shafts at both ends of the roller body 1, and both the air inlet 21 and the air outlet 22 are communicated with the cooling cavity 2; a radiator 3 is arranged in the cooling cavity 2, the radiator 3 includes a plurality of first heat sink fins 31 and second heat sink fins 32 fixedly arranged in the cooling cavity 2, the first heat sink fins 31 and the second heat sink fins 32 are arranged in a cross shape, and the first heat sink fins 31 and the second heat sink fins 32 are coaxially arranged with the roller body 1, a heat conduction cavity 35 is formed between adjacent first heat sink fins 31 and second heat sink fins 32, a plurality of first heat dissipation holes 33 are opened on the first heat sink fins 31, and a plurality of second heat dissipation holes 34 are opened on the second heat sink fins 32.
[0025] Through the arranged radiator 3, the heat generated by the working of the rubber layer 11 is conducted to the inside of the cooling cavity 2 through the roller body 1, and heat exchange is carried out with the air in the heat conduction cavity 35 through the first heat sink fins 31 and the second heat sink fins 32 on the radiator 3; cold air enters the cooling cavity 2 through the air inlet 21, takes away the hot air in each heat conduction cavity 35 through the first heat dissipation holes 33 and the second heat dissipation holes 34, and flows out through the air outlet 22, so as to effectively cool the rubber layer 11; and when used in cooperation with external air cooling, the cooling effect can be further improved, the working time of the roller body 1 can be extended, and the service life can be increased.
[0026] Further, the first heat dissipation holes 33 are opened at the edges of the first heat sink fins 31, and the second heat dissipation holes 34 are opened at the centers of the second heat sink fins 32. One side of the radiator 3 facing the air inlet 21 and the air outlet 22 is the first heat sink fin 31.
[0027] To enable the cold air to more fully carry away the hot air in each heat conduction cavity 35, the cold air entering from the air inlet 21 first contacts the first heat sink 31 and flows from the center to the first heat dissipation holes 33 located at the edge to discharge the hot air between the radiator 3 and the cooling cavity 2, enabling it to enter the adjacent heat conduction cavity 35 through the first heat dissipation holes 33 and flow from the edge to the second heat dissipation holes 34 at the center, and then flow from the second heat dissipation holes 34 to the adjacent heat conduction cavity 35, repeating the above process until the hot air in each heat conduction cavity 35 is discharged; the position design of the first heat dissipation holes 33 and the second heat dissipation holes 34 in the present utility model can, on the one hand, more fully discharge the hot air in each heat conduction cavity 35, and on the other hand, extend the moving path of the cold air, that is, increase the contact surface with the first heat sink 31 and the second heat sink 32, thereby enhancing the cooling effect.
[0028] Furthermore, both the first heat sink 31 and the second heat sink 32 are made of copper. Copper has a high thermal conductivity and strong heat conduction ability; the roller body 1 should also be made of a material with good thermal conductivity.
[0029] Furthermore, a cooling plate 4 is arranged in each heat conduction cavity 35. The cooling plate 4 is arranged in a ring shape and is closely attached to the inner wall of the roller body 1. The cooling plate 4 is filled with a coolant. The coolant can initially cool the heat transferred by the adhesive layer 11 and exchange heat with the cold air during the process of the cold air entering the roller body 1 to discharge the hot air, thereby assisting in cooling.
[0030] Working principle: The heat generated by the working of the adhesive layer 11 is conducted to the cooling cavity 2 through the roller body 1, enabling the cold air entering from the air inlet 21 to first contact the first heat sink 31 and flow from the center to the first heat dissipation holes 33 located at the edge to discharge the hot air between the radiator 3 and the cooling cavity 2, enabling it to enter the adjacent heat conduction cavity 35 through the first heat dissipation holes 33 and flow from the edge to the second heat dissipation holes 34 at the center, and then flow from the second heat dissipation holes 34 to the adjacent heat conduction cavity 35, repeating the above process until the hot air in each heat conduction cavity 35 is discharged; the position design of the first heat dissipation holes 33 and the second heat dissipation holes 34 in the present utility model can, on the one hand, more fully discharge the hot air in each heat conduction cavity 35, and on the other hand, extend the moving path of the cold air, that is, increase the contact surface with the first heat sink 31 and the second heat sink 32, thereby enhancing the cooling effect. When used in cooperation with external air-cooling for cooling, the cooling effect can be further enhanced, enabling the working time of the roller body 1 to be extended and the service life to be increased.
[0031] Only some exemplary embodiments of the present utility model are described by way of illustration. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.
Claims
1. A printing roller for a printing device, comprising a roller body (1), and an adhesive layer (11) is provided on the outer side of the roller body (1), characterized in that: A cooling cavity (2) is formed inside the roller body (1). Air inlets (21) and air outlets (22) are respectively formed on the rotating shafts at both ends of the roller body (1). The air inlets (21) and the air outlets (22) are both communicated with the cooling cavity (2). A radiator (3) is arranged in the cooling cavity (2). The radiator (3) includes a plurality of first radiating fins (31) and second radiating fins (32) fixedly arranged in the cooling cavity (2). The first radiating fins (31) and the second radiating fins (32) are arranged in a cross manner, and the first radiating fins (31) and the second radiating fins (32) are coaxially arranged with the roller body (1). Adjacent first radiating fins (31) and second radiating fins (32) form a heat conduction cavity (35). A plurality of first heat dissipation holes (33) are formed in the first radiating fins (31), and second heat dissipation holes (34) are formed in the second radiating fins (32).
2. The printing roller for a printing device according to claim 1, wherein, The first heat dissipation holes (33) are formed near the edges of the first radiating fins (31), and the second heat dissipation holes (34) are formed at the centers of the second radiating fins (32).
3. The printing roller for a printing device according to claim 2, characterized in that, The sides of the radiator (3) facing the air inlets (21) and the air outlets (22) are both first radiating fins (31).
4. A printing roller for a printing device according to claim 2, characterized in that, Both the first radiating fins (31) and the second radiating fins (32) are made of copper.
5. A printing roller for a printing device according to claim 1, wherein, A cooling plate (4) is arranged in each heat conduction cavity (35). The cooling plate (4) is arranged in a ring shape and is closely attached to the inner wall of the roller body (1). A coolant is loaded in the cooling plate (4).