CN211897119U - Wear-resistant nano coating for supporting roller of burr pressing machine - Google Patents

Abstract

The utility model proposes a wear-resistant nano-coating for a support roller of a burr press. The nano-composite coating is coated on the outer surface of the roller. The nano-composite coating includes a nano-base layer and a nano-protective layer. The protective layer is coated on the nano-based layer. The wear-resistant nano-coating used for the support roller of the burr press of the utility model has the advantages of simple structure, wear resistance, corrosion resistance, and can effectively ensure the service life of the roller.

Description

A wear-resistant nano-coating for back-up rolls of press burrs

technical field

The utility model relates to relevant components on a burr press, in particular to a wear-resistant nano-coating used for a support roller of the burr press.

Background technique

The burr press is a necessary equipment for the color coating production line. Normally, the steel strip is only used for flattening seams and seams. The punching burrs on one side of the seams and seams are too large and damage the roller surface of other equipment. Or the transportation process brings damage along the edge direction, especially in the head and tail parts of each roll, the burrs are raised, and the burr pressing machine needs to flatten the raised burrs.

The support rollers play a role in assisting the transmission and flattening operations in the deburring machine. After more than one month of use, the surface of the support rollers will be worn, and the worn areas will scratch the surface of the steel strip, causing problems with the quality of the surface.

Utility model content

The purpose of the present invention is to provide a wear-resistant nano-coating for the support roller of a burr press, which solves one or more of the above-mentioned problems in the prior art.

The utility model proposes a wear-resistant nano-coating for a support roller of a burr press. The nano-composite coating is coated on the outer surface of the roller. The nano-composite coating includes a nano-base layer and a nano-protective layer. The protective layer is coated on the nano-based layer.

In certain embodiments, the thickness of the nanocomposite coating is greater than or equal to 100 μm and less than or equal to 150 μm, and the thickness of the nano-protective layer is greater than or equal to 30 μm and less than or equal to 45 μm.

In certain embodiments, the nano-based layer is a NiBCr-WC alloy coating.

In certain embodiments, the nano-protective layer adopts WC nano-ceramic material doped with nano-lanthanum oxide particles, wherein the content of nano-lanthanum oxide is 5.5%-8%.

In some embodiments, the roller includes an outer cylinder and an inner cylinder, the inner cylinder is sleeved on the central axis, and the outer cylinder is sleeved on the inner cylinder.

In some embodiments, both ends of the roller are respectively provided with a first fixing cover and a second fixing cover for fixing the outer cylinder and the inner cylinder, and both the first fixing cover and the second fixing cover are sleeved in the center on the axis.

In certain embodiments, the outer cylindrical body comprises a cylindrical body, and a wrapping layer wrapped around the outside of the cylindrical body, and the outer surface of the wrapping layer is coated with a nanocomposite coating.

In certain embodiments, the material density of the barrel is the same as the material density of the inner barrel.

In some embodiments, the outer surface of the cylindrical body is provided with a grid-shaped groove body, the cross-section of the groove body is triangular, and the cylindrical body and the wrapping layer are bonded by glue

The advantages of the wear-resistant nano-coating for the support roller of the burr press according to the utility model are as follows: the structure is simple, the function is practical, the wear-resistant and corrosion-resistant effects of the roller can be effectively enhanced, and the effect of effectively ensuring Service life of the rollers.

Description of drawings

1 is a schematic structural diagram of a wear-resistant nano-coating used for a backup roller of a burr press in an embodiment of the present invention;

Fig. 2 is A-A sectional structure schematic diagram in Fig. 1;

3 is a top view of a wear-resistant nano-coating used for a backup roll of a burr press in an embodiment of the present invention;

4 is a schematic structural diagram of an outer cylinder in an embodiment of the present invention;

FIG. 5 is an enlarged view of part A-a in FIG. 4 .

Detailed ways

As shown in Fig. 1 to Fig. 5, the utility model proposes a wear-resistant nano-coating for the support roller of the burr press, the nano-composite coating is coated on the outer surface of the roller, and the roller is sleeved on the On the central axis 1,

The roller includes an outer cylinder 3 and an inner cylinder 2, the inner cylinder 2 is sleeved on the central axis 1, the outer cylinder 3 is sleeved on the inner cylinder 2, and the cross-section of the inner cylinder 2 is a rounded triangle, so that It can not only ensure that the inner cylinder 2 drives the outer cylinder 3, but also avoid the phenomenon of being vulnerable to damage caused by too thin tips of the three corners of the triangle. layer 302 and the nanocomposite coating applied on the outer surface of the wrapping layer 302, the outer surface of the inner cylinder 2 is attached to the inner surface of the cylindrical body 301, wherein the wrapping layer 302 is a tin-plated plate,

The inner cylinder 2 and the cylinder 301 are made of the same material, both of which are nickel-based alloys, and the material density of the inner cylinder 2 is the same as that of the cylinder 301,

Both ends of the roller are respectively provided with a first fixed cover 4 and a second fixed cover 5, the first fixed cover 4 and the second fixed cover 5 are both sleeved on the central shaft 1, the first fixed cover 4 and the second fixed cover 5 Both are connected with the inner cylinder 2 through screws 6,

Among them, between the first fixed cover 4 and the inner cylinder 2 , between the second fixed cover 5 and the inner cylinder 2 , between the first fixed cover 4 and the outer cylinder 3 , and between the second fixed cover 5 and the outer cylinder 3 between the inner cylinder 2 and the outer cylinder 3 are detachable, and the inner cylinder 2 and the outer cylinder 3 are separately arranged, cracks occur on the outer cylinder 3, and the surface of the outer cylinder 3 wears too much. At the same time, the outer cylinder 3 can be directly replaced by the following method, and the entire roller does not need to be replaced.

The replacement method of the outer cylinder 3 is as follows: loosen the screw 6 on the first fixing cover 4, contact the connection between the screw 6 and the inner cylinder 2, then remove the first fixing cover 4, and then directly remove the outer cylinder 3. Take it off directly, replace it with a new outer cylinder 3, and then put on the first fixing cover 4 again, so that the first fixing cover 4 fits the inner cylinder 2 and the outer cylinder 3, and then tighten the screws 6 so that the first fixing cover 4 It is enough to form a fixed connection between the fixed cover 4 and the inner cylinder,

The outer surface of the cylinder body 301 is provided with a grid-shaped groove body, and the cross-section of the groove body is an isosceles triangle, wherein the side length of the first side 3011 is equal to the side length of the second side 3012, and the third side of the isosceles triangle is on the third side. The height is greater than or equal to 20 μm, less than or equal to 50 μm, the angle between the first side 3011 and the second side 3012 is greater than 15°, less than or equal to 65°, the cylinder 301 and the wrapping layer 302 are bonded by glue, and the grid is arranged. The groove body can effectively increase the contact surface between the glue and the outer surface of the cylinder body 301, and enhance the connection strength between the cylinder body 301 and the wrapping layer 302.

The nano-base layer 303 is coated on the outer surface of the wrapping layer 302, and the nano-base layer 303 is coated with a nano-protective layer 304 to form a nano-composite coating,

The thickness of the nanocomposite coating is greater than or equal to 100 μm and less than or equal to 150 μm. The nanocomposite coating includes a nano-based layer 303 and a nano-protective layer 304, wherein the nano-based layer 303 is a laser clad NiBCr-WC alloy coating, and the nano-protective layer 304 passes through The formation of WC nano-ceramic materials doped with nano-lanthanum oxide particles by plasma spraying, wherein the WC nano-ceramic materials doped with nano-lanthanum oxide particles can be nano-structured ceramics (n-WC-12Co) doped with nano-lanthanum oxide particles In the coating material, the content of nanometer lanthanum oxide is 5.5%-8%, and the thickness of the nanometer protective layer is greater than or equal to 30 μm and less than or equal to 45 μm.

The roll surface hardness of the wear-resistant nano-coating for the backup roll of the burr press described in this embodiment is HRC80-85, the roll surface roughness Ra0.8-1, and its service life can reach 300 days.

The above is only the preferred mode of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several similar deformations and improvements can also be made. It is regarded as being within the protection scope of the present invention.

Claims (6)

1. an abrasion-resistant nano-coating for the support roller of a burr press, characterized in that the nano-composite coating is coated on the outer surface of the roller, and the nano-composite coating comprises nano-base (303) and Nano protective layer (304), the nano protective layer (304) is coated on the nano base layer (303); the thickness of the nano composite coating is greater than or equal to 100 μm and less than or equal to 150 μm, and the thickness of the nano protective layer (304) is greater than or equal to 100 μm Equal to 30μm, less than or equal to 45μm. 2. The wear-resistant nano-coating for a support roller of a burr press according to claim 1, wherein the roller comprises an outer cylinder (3) and an inner cylinder (2), The inner cylinder body (2) is sleeved on the central shaft (1), and the outer cylinder body (3) is sleeved on the inner cylinder body (2). 3. The wear-resistant nano-coating for a backup roller of a burr press according to claim 2, characterized in that, both ends of the roller are respectively provided with a first fixed cover (4) and a second fixed cover (4) The fixing cover (5) is used for fixing the outer cylinder (3) and the inner cylinder (2), and both the first fixing cover (4) and the second fixing cover (5) are sleeved on the central shaft (1). 4. The wear-resistant nano-coating for a backup roll of a burr press according to claim 2, wherein the outer cylinder (3) comprises a cylinder (301), and is wrapped in the cylinder The wrapping layer (302) on the outer side of the body (301) is coated with a nanocomposite coating on the outer surface of the wrapping layer (302). 5 . The wear-resistant nano-coating for a backup roll of a burr press according to claim 4 , wherein the material density of the cylinder (301) is the same as the material of the inner cylinder (2). 6 . the same density. 6 . The wear-resistant nano-coating for a support roller of a burr press according to claim 4 , wherein the outer surface of the cylindrical body (301) is provided with a grid-shaped groove body, The cross section of the tank body is triangular, and glue is used to bond the cylinder body (301) and the wrapping layer (302).

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