Air hole toughening ceramic roller

Abstract

The utility model relates to the technical field of ceramic anilox rollers, and provides an air hole toughening ceramic roller which comprises a ceramic anilox roller body, a connecting piece is arranged on the end face of the ceramic anilox roller body, a clamping piece is arranged on the inner wall of the connecting piece, and a protective pipe is arranged on the surface of the ceramic anilox roller body in a sleeved mode. Clamping notches matched with the clamping pieces are formed in the two ends of the surface of the protection pipe. The ceramic anilox roller is reasonable in structure, 3%-4% of nano zirconium oxide is added in the process of ceramic plasma spraying of the ceramic anilox roller body, nano pores are increased through the nano zirconium oxide, and microcrack propagation when stress changes is prevented through introduction of the nano pores, so that the toughness of the ceramic anilox roller body is improved, and the service life of the ceramic anilox roller is prolonged. The problems that the net wall of the ceramic anilox roller is easy to collapse due to local external force, impact scratches and abrasion lines are formed on the roller surface, the ink loading amount is quickly reduced, and the whole ceramic surface layer is abraded and falls off are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic anilox rollers, and particularly relates to a pore toughened ceramic roller. Background Art

[0002] Ceramic anilox roller: It is used in fields such as gravure coating, offset glazing, and high-definition flexographic printing. Ceramic is plasma-sprayed on the metal surface, and after precision machining, it is laser-engraved into a mesh, mainly hexagonal. The mesh specifications range from 50 meshes to 1600 meshes. At the same time, the angle between the wire and the axis can be selected, or different mesh depths and mesh bottom structures can be determined according to the ink content requirements of the printed matter to achieve the best printing effect. It is suitable for use as an ink transfer and printing roller for precise printing equipment.

[0003] Problems existing in the existing ceramic anilox rollers: Brittleness is a fatal weakness of ceramic materials, which is essentially determined by the nature of chemical bonds and crystal structures. There is a lack of independent slip systems in ceramics. Once the material is in a stressed state, it is difficult to relax stress through plastic deformation. From the microscopic structure, the root cause of brittleness lies in the existence of microcracks, which are prone to cause high stress concentration, and then the microcracks expand and lead to fracture. In the ceramic anilox roller, it is mainly manifested as the collapse of the mesh wall under local external forces, impact scratches and wear lines on the roller surface, rapid decrease in ink loading capacity, and wear and shedding of the entire ceramic surface layer. Therefore, a pore toughened ceramic roller is proposed. Content of the Utility Model

[0004] The utility model provides a pore toughened ceramic roller, which solves the problems in the related art that brittleness is a fatal weakness of ceramic materials, which is essentially determined by the nature of chemical bonds and crystal structures. There is a lack of independent slip systems in ceramics. Once the material is in a stressed state, it is difficult to relax stress through plastic deformation. From the microscopic structure, the root cause of brittleness lies in the existence of microcracks, which are prone to cause high stress concentration, and then the microcracks expand and lead to fracture. In the ceramic anilox roller, it is mainly manifested as the collapse of the mesh wall under local external forces, impact scratches and wear lines on the roller surface, rapid decrease in ink loading capacity, and wear and shedding of the entire ceramic surface layer.

[0005] The technical solution of the utility model is as follows: A pore toughened ceramic roller, comprising: a ceramic anilox roller body, the end face of the ceramic anilox roller body is provided with a connecting member, the inner wall of the connecting member is provided with a clamping member, the surface of the ceramic anilox roller body is sleeved with a protective tube, and both ends of the surface of the protective tube are provided with clamping grooves for cooperating with the clamping member;

[0006] The outer surface of the ceramic anilox roller body is provided with a ceramic plasma layer.

[0007] Optionally, the connecting member includes a plurality of through holes opened on the end face of the ceramic anilox roller body, and internal threads are opened on the inner wall of one of the plurality of through holes.

[0008] Optionally, the clamping member includes a connecting bolt threadedly connected to the inner wall of the through port, a connecting block sleeved on the surface of the connecting bolt, and a clamping post fixedly connected to the surface of the connecting block.

[0009] Optionally, a resin layer is provided on the surface of the protective tube, and a rubber sheet is provided on the inner wall of the protective tube.

[0010] Optionally, the thickness of the ceramic plasma layer 12 is 0.1 mm - 0.7 mm.

[0011] The working principle and beneficial effects of the present utility model are as follows:

[0012] The structure of the present application is reasonable. 3% - 4% of nano-zirconia is added during the ceramic plasma spraying process on the ceramic anilox roll body. The nano-pores are increased by the nano-zirconia, and the introduction of the nano-pores prevents the propagation of micro-cracks when the stress changes, thereby improving the toughness of the ceramic anilox roll body and avoiding the problems of easy collapse of the anilox wall of the ceramic anilox roll due to local external forces, impact scratches and wear lines on the roll surface, rapid decrease in ink-carrying capacity, and wear and peeling off of the entire ceramic surface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 is a three-dimensional structure schematic diagram of the ceramic anilox roll body in the present utility model;

[0016] Figure 3 is Figure 3 an enlarged structure schematic diagram of part A in

[0017] Figure 4 is a side view structure schematic diagram of the present utility model;

[0018] Figure 5 is a cross-sectional structure schematic diagram of the protective tube in the present utility model;

[0019] Figure 6 is a cross-sectional structure schematic diagram of the ceramic anilox roll body in the present utility model;

[0020] In the figure: 1, ceramic anilox roll body; 2, through port; 3, internal thread; 4, chamfer; 5, protective tube; 6, connecting block; 7, connecting bolt; 8, clamping post; 9, clamping groove; 10, resin layer; 11, rubber sheet; 12, ceramic plasma layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] Embodiment 1

[0023] Please refer to Figure 1 - Figure 6 , a porous toughened ceramic roller provided by the present invention includes: a ceramic reticulated roller body 1, a connecting member is provided at the end face of the ceramic reticulated roller body 1, a clamping member is provided on the inner wall of the connecting member, a protective tube 5 is sleeved on the surface of the ceramic reticulated roller body 1, and clamping grooves 9 for cooperating with the clamping member are opened at both ends of the surface of the protective tube 5;

[0024] A ceramic plasma layer 12 is provided on the outer surface of the ceramic reticulated roller body 1, which contains nano-zirconia oxide, and the thickness of the ceramic plasma layer 12 is 0.1 mm - 0.7 mm.

[0025] During the ceramic plasma spraying process on the ceramic reticulated roller body 1, 3% - 4% of nano-zirconia oxide is added. Nano-pores are increased by nano-zirconia oxide, and the expansion of micro-cracks during stress change is prevented by the introduction of nano-pores, thereby improving the toughness of the ceramic reticulated roller body 1;

[0026] In addition, when transporting the ceramic reticulated roller body 1, the protective tube 5 is sleeved on the surface of the ceramic reticulated roller body 1, and then the protective tube 5 is clamped and fixed by the clamping member and the connecting member to protect the ceramic reticulated roller body 1.

[0027] Further, the connecting member includes a plurality of through holes 2 opened at the end face of the ceramic reticulated roller body 1, and an internal thread 3 is provided on the inner wall of one of the plurality of through holes 2;

[0028] The clamping member includes a connecting bolt 7 threadedly connected to the inner wall of the through hole 2, a connecting block 6 sleeved on the surface of the connecting bolt 7, and a clamping post 8 fixedly connected to the surface of the connecting block 6.

[0029] Specifically, the connecting bolt 7 passes through a reserved hole in the center of the connecting block 6 and is then threadedly connected to the inside of the through hole 2 through the internal thread 3 to fix the connecting block 6.

[0030] Further, a resin layer 10 is provided on the surface of the protective tube 5, a rubber sheet 11 is provided on the inner wall of the protective tube 5, and chamfers 4 are provided at the edges of both ends of the ceramic reticulated roller body 1.

[0031] Specifically, the strength of the protective tube 5 is increased through the resin layer 10, and the rubber sheet 11 is combined with the ceramic anilox roll body 1 in contact to protect the ceramic anilox roll body 1.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pore toughened ceramic roller, characterized in that, Comprising: A ceramic anilox roll body (1), the end face of the ceramic anilox roll body (1) is provided with a connecting piece, the inner wall of the connecting piece is provided with a clamping piece, the surface of the ceramic anilox roll body (1) is sleeved with a protective tube (5), and both ends of the surface of the protective tube (5) are provided with clamping grooves (9) for cooperating with the clamping piece; The outer surface of the ceramic anilox roll body (1) is provided with a ceramic plasma layer (12).

2. The toughened ceramic roller with increased air holes according to claim 1, characterized in that: The connecting piece includes a plurality of through holes (2) opened on the end face of the ceramic anilox roll body (1), and an internal thread (3) is opened on the inner wall of one of the plurality of through holes (2).

3. The toughened ceramic roller with increased air holes according to claim 2, characterized in that: The clamping piece includes a connecting bolt (7) threadedly connected to the inner wall of the through hole (2), a connecting block (6) sleeved on the surface of the connecting bolt (7), and a clamping post (8) fixedly connected to the surface of the connecting block (6).

4. The toughened ceramic roller with increased air holes according to claim 1, characterized in that: The surface of the protective tube (5) is provided with a resin layer (10), and the inner wall of the protective tube (5) is provided with a rubber sheet (11).

5. A stomatal toughened ceramic roller according to claim 1, characterized in that: The thickness of the ceramic plasma layer (12) is 0.1 mm - 0.7 mm.

6. The toughened ceramic roller with increased air holes according to claim 1, wherein: Chamfers (4) are provided at the edges of both ends of the ceramic anilox roll body (1).

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