CN215590211U

CN215590211U - Printing roller capable of improving printing smoothness

Info

Publication number: CN215590211U
Application number: CN202121974541.6U
Authority: CN
Inventors: 刘帅; 刘伟峰; 陈长云; 李筱瑜; 谭晓玲; 张玉
Original assignee: Guangdong Fenghua Advanced Tech Holding Co Ltd
Current assignee: Guangdong Fenghua Advanced Tech Holding Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-01-21
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a printing roller for improving printing smoothness, wherein a plurality of outer pits which are arranged side by side are arranged on two side edges of the printing roller, and a plurality of inner pits which are stacked and arranged are arranged in the center of the printing roller; wherein the outer mesh holes are pentagonal, and the inner mesh holes are hexagonal; the outer net holes and the inner net holes are arranged on the same horizontal line in a staggered mode. According to the utility model, by adjusting the shape and the arrangement structure of the mesh holes, the size of the openings of the mesh holes is kept uniform while the size storage capacity of the mesh holes is increased, the paste can be kept at a stable transfer speed, and printed image layers are kept consistent, so that the smoothness of a printed film is improved, and the product quality is improved.

Description

Printing roller capable of improving printing smoothness

Technical Field

The utility model relates to the technical field of electronic printing, in particular to a printing roller for improving printing smoothness.

Background

With the formal application popularization of the fifth generation mobile communication technology network (5G), commercial scenes of emerging technologies such as Artificial Intelligence (AI), enhanced display technology (AR), internet of things and the like gradually fall to the ground, and the application field of the MLCC industry is widened from the fields of traditional household appliances and consumer electronics to novel high-tech fields such as wearable equipment, 5G base stations, new energy automobiles, unmanned aerial vehicles and the like. The market demand and performance requirements for multilayer chip ceramic capacitors (MLCCs, for short) have also risen to new heights. The manufacturing process of the multilayer chip ceramic capacitor comprises the following steps: the method comprises the steps of preparing ceramic slurry by adding organic solvents such as adhesive and plasticizer into ceramic powder mainly containing barium titanate, preparing a dielectric film with uniform thickness by using film casting equipment, then printing an inner electrode with a specific pattern and uniform nickel layer on the dielectric film by using a roll printing machine and a gravure printing technology, and then preparing the chip with specific electrical properties by multiple production processes such as multilayer stacking, cutting, sintering, outer electrode electroplating and the like.

The printing quality of the internal electrodes is a key factor determining the performance of the chip. The current common internal electrode manufacturing method is a gravure printing technology, and the process flow is as follows: the slurry is poured into a slurry pot body, the slurry is filtered by a filter element and coated on the surface of a gluing roller through a slurry conveying pipe, the gluing roller rotates to transfer the slurry to the surface of a printing roller, the slurry is filled into a mesh hole of the printing roller, the slurry on the surface of the printing roller is scraped clean through a printing scraper, a medium diaphragm is downwards pressed by a pressure roller above the printing roller to be in contact with the printing roller, and the slurry in the mesh hole of the printing roller is transferred to the medium diaphragm through the capillary absorption effect to form an inner electrode pattern.

However, the gravure printing technology commonly used at present has the following technical problems: because the size of the slurry is influenced by the size of the mesh opening and the mesh opening of the plate roller, different mesh openings can be formed by different mesh shapes, and if the openings or the sizes of the mesh openings are different, the transfer speed of the slurry can be imaged, so that the size of the printed nickel layer is not uniform, and the product precision is reduced.

Disclosure of Invention

The utility model provides a printing roller for improving printing smoothness, which can increase the volume of a mesh, improve the thickness of a printing nickel layer, reduce the height difference between the edge and the center of an inner electrode, and enable the thickness of the printed nickel layer to be uniform so as to improve the effect of printing film smoothness.

The first aspect of the embodiment of the utility model provides a printing roller for improving printing smoothness, wherein a plurality of outer cavities arranged side by side are arranged on two side edges of the printing roller, and a plurality of inner cavities arranged in a stacked mode are arranged in the center of the printing roller;

wherein the outer mesh holes are pentagonal, and the inner mesh holes are hexagonal;

the outer net holes and the inner net holes are arranged on the same horizontal line in a staggered mode.

In one possible implementation of the first aspect, the width of the outer cell is A3, and the width of the inner cell is B5, where A3 ═ B5.

In one possible implementation manner of the first aspect, the length of the outer cell is B4, the length of the inner cell is A4, and B4 is more than or equal to A4.

In one possible implementation manner of the first aspect, the sum of the length of the upper bottom edge or the lower bottom plate of the outer cell and the length of the side vertex angle is B6, and B6 is less than or equal to A4.

In a possible implementation manner of the first aspect, a scraping pocket for scraping slurry is arranged on a knife-facing surface or a slurry collecting surface of the plate roller, the scraping pocket is in a bar shape, and the length of the scraping pocket is a plurality of the outer pocket and a plurality of the total length of the inner pocket.

In a possible implementation manner of the first aspect, the printing roller is further provided with a plurality of isolation cells, and the isolation cells are arranged between the scraping cell and the outer and inner cells to separate the scraping cell from the outer and inner cells.

In a possible implementation manner of the first aspect, the isolation pocket and the scraping pocket, the outer pocket and the inner pocket are provided with isolation gaps therebetween.

Compared with the prior art, the printing roller for improving the printing smoothness, provided by the embodiment of the utility model, has the beneficial effects that: according to the utility model, through adjusting the shape and the arrangement structure of the mesh holes, the size of the openings of the mesh holes is kept uniform while the slurry storage capacity of the mesh holes is increased, the slurry can keep a stable transfer speed, and printed image layers are kept consistent, so that the smoothness of a printed film is improved, the product quality is improved, the size of the mesh holes is adjustable, the thickness of a nickel layer on the edge of a printed electrode can be adjusted, the printing appearance of the opening end and the tail end of the electrode mesh hole can be improved through scraping the mesh holes, and the electronic slurry is in an applicable viscosity range on the premise of realizing good printing appearance.

Drawings

Fig. 1 is a schematic structural diagram of a printing roller for improving printing smoothness according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an outer cell according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an inner cell according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The gravure printing technology commonly used at present has the following technical problems: because the size of the slurry is influenced by the size of the mesh opening and the mesh opening of the plate roller, different mesh openings can be formed by different mesh shapes, and if the openings or the sizes of the mesh openings are different, the transfer speed of the slurry can be imaged, so that the size of the printed nickel layer is not uniform, and the product precision is reduced.

In order to solve the above problem, a biological fluid sample collection system provided in the embodiments of the present application will be described and explained in detail with reference to the following specific embodiments.

Referring to fig. 1, a schematic structural diagram of a printing roll for improving printing smoothness according to an embodiment of the present invention is shown.

In one embodiment, two side edges of the plate roller for improving printing smoothness are provided with a plurality of outer holes 1 arranged side by side, and the center of the plate roller is provided with a plurality of inner holes 2 arranged in a stacked mode;

wherein, the outer mesh holes 1 are pentagonal, and the inner mesh holes 2 are hexagonal;

the outer net cave 1 and the inner net cave 2 are arranged on the same horizontal line in a staggered mode.

Referring to fig. 1, the arrow point direction is the printing direction, when using, improves the figure of the pocket of version roller for the pentagon, can increase the upper and lower base and the high length of pocket, enlarges the opening and the volume of pocket to make thick liquids or printing ink transfer volume and pocket volume become positive correlation, promote printing nickel layer thickness, reduce the difference in height at the inner electrode edge and the center of printing, make the electrode of printing more level and smooth, improve the finished product quality of electrode.

In an embodiment, in order to increase the storage amount of the slurry and reduce the prize scraping effect of the scraper on the beginning of the electrode, referring to fig. 1, a scraping mesh 3 for scraping the slurry is arranged on the blade facing surface or the slurry collecting surface of the plate roller, the scraping mesh 3 is in a strip shape, and the length of the scraping mesh 3 is the sum of the lengths of the plurality of outer mesh 1 and the plurality of inner mesh 2.

During operation, the screen scraping holes 3 on the face of the knife can effectively increase the storage amount of the slurry at the beginning of the printing electrode, weaken the slurry scraping effect of the scraper on the beginning of the electrode screen holes and improve the printing appearance (such as printing white spots).

And the scraping screen hole 3 of the pulp collecting surface can effectively reduce the overflow of the electronic pulp at the tail end of the screen hole, and improve the appearance problems of edge seepage, burrs and the like caused by the dragging of the pulp by the scraper.

In one embodiment, in order to print the electrode more completely, the printing roller is further provided with a plurality of isolation cells 4, and the isolation cells 4 are arranged between the scraping cell 3 and the outer cell 1 and the inner cell 2 so as to separate the scraping cell 3 from the outer cell 1 and the inner cell 2.

Optionally, isolation gaps 5 are arranged between the isolation mesh 4 and the scraping mesh 3, and between the outer mesh 1 and the inner mesh 2.

Referring to fig. 2 to 3, a schematic structure diagram of an outer cell according to an embodiment of the present invention and a schematic structure diagram of an inner cell according to an embodiment of the present invention are respectively shown, in order to increase filling slurry of the cells to increase smoothness of printing, in an embodiment, a width of the outer cell 1 is A3, and a width of the inner cell 2 is B5, where A3 is B5.

Optionally, the length of the outer mesh 1 is B4, the length of the inner mesh 2 is A4, and B4 is more than or equal to A4.

Optionally, the sum of the length of the upper bottom edge or the lower bottom plate and the length of the side top angle of the outer cell 1 is B6, B6 ≦ a4, wherein B6 ═ B2+ B3 or B6 ═ B2+ B1.

In this embodiment, the embodiment of the present invention provides a plate roller for improving printing smoothness, and its beneficial effects are: according to the utility model, through adjusting the shape and the arrangement structure of the mesh holes, the size of the openings of the mesh holes is kept uniform while the slurry storage capacity of the mesh holes is increased, the slurry can keep a stable transfer speed, and printed image layers are kept consistent, so that the smoothness of a printed film is improved, the product quality is improved, the size of the mesh holes is adjustable, the thickness of a nickel layer on the edge of a printed electrode can be adjusted, the printing appearance of the opening end and the tail end of the electrode mesh hole can be improved through scraping the mesh holes, and the electronic slurry is in an applicable viscosity range on the premise of realizing good printing appearance.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. The printing roller capable of improving printing smoothness is characterized in that a plurality of outer cavities arranged side by side are formed in two side edges of the printing roller, and a plurality of inner cavities which are stacked and arranged are formed in the center of the printing roller;

2. The printing roll for improving printing smoothness according to claim 1, wherein the width of the outer cell is A3 and the width of the inner cell is B5, wherein A3 is B5.

3. The printing roll for improving printing smoothness according to claim 1, wherein the length of the outer cell is B4, the length of the inner cell is A4, and B4 is equal to or greater than A4.

4. The printing roll for improving printing smoothness according to claim 3, characterized in that the sum of the length of the upper bottom edge or the lower bottom plate and the length of the side apex angle of the outer cell is B6, B6 ≦ A4.

5. The printing roll for improving printing smoothness according to claim 1, wherein a blade facing surface or a pulp receiving surface of the printing roll is provided with a scraping hole for scraping pulp, the scraping hole is in a strip shape, and the length of the scraping hole is the sum of the lengths of the outer holes and the inner holes.

6. The printing roll for improving smoothness of print according to claim 5, further being provided with a plurality of spacer cells disposed intermediate said doctor cell and said outer and inner cells for spacing said doctor cell from said outer and inner cells.

7. The printing roll for improving printing smoothness according to claim 6, wherein said spacer cavities and said doctor, outer and inner cavities are spaced apart from each other by spacer gaps.