Corrosion-resistant washing roller

Abstract

The utility model discloses a corrosion-resistant washing roller, which belongs to the technical field of washing rollers and comprises a stainless steel base body and a taper sleeve, the stainless steel base body and the taper sleeve are connected through a stainless steel partition plate, the taper sleeve is of a double-taper-hole structure, a groove is formed in the outer side face of the stainless steel base body, and a titanium carbonitride-based metal ceramic layer is filled in the groove. The problems that in the prior art, a washing roller on a washing machine for producing fibers is poor in corrosion resistance and abrasion resistance, the service life of the washing roller is short, and the quality of finished fiber products is affected are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of washing rollers, and particularly relates to a corrosion-resistant washing roller. Background Art

[0002] The washing machine used in the production of aramid 1414 involves several washing rollers. Due to the structural characteristics of aramid 1414 products, it can only be dissolved in strong acid or amide solutions, such as sulfuric acid (SA), methanesulfonic acid (MSA), chlorosulfonic acid (CA), dimethylacetamide (DMAc), etc. Therefore, during the production process of aramid 1414, the fiber needs to be continuously cleaned in the washing machine to ensure that there is no residual acid on the aramid 1414 fiber, ensuring that it will not degrade during subsequent drying and storage.

[0003] However, during the cleaning process, the existing washing machine is subjected to long-term scouring by sulfuric acid or alkali solution, and the aramid fiber is worn during the drawing process, resulting in a short service life of the washing roller of the washing machine. The worn washing roller also affects the quality of the finished fiber product.

[0004] To this end, technical personnel in the industry are constantly optimizing existing washing rollers in order to find washing rollers that are more corrosion-resistant and wear-resistant. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the washing rollers on the washing machines for producing fibers have poor corrosion resistance and wear resistance, resulting in a short service life and affecting the quality of the finished fibers.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution of the present utility model is as follows:

[0007] A corrosion-resistant washing roller comprises a stainless steel base and a tapered sleeve, which are connected by a stainless steel partition. The tapered sleeve has a double-conical hole structure. A groove is provided on the outer surface of the stainless steel base for filling a titanium carbonitride-based metal ceramic layer.

[0008] Furthermore, the double-cone hole structure in the middle of the cone sleeve includes a first cone hole section, a first straight hole section and a second straight hole section which are connected in sequence.

[0009] Furthermore, the stainless steel base and the stainless steel partition, as well as the stainless steel partition and the cone sleeve are connected by welding.

[0010] Furthermore, a connecting portion is provided on the outside of the cone sleeve, and the stainless steel partition is installed with the cone sleeve through the connecting portion and then welded.

[0011] Furthermore, the depth of the groove is 0.1-0.5 mm.

[0012] Furthermore, a plurality of mounting holes are provided on the stainless steel partition.

[0013] Furthermore, a stepped mounting hole is provided at one end of the stainless steel base, and a tapered mounting hole is provided at the other end.

[0014] Beneficial effects of the utility model:

[0015] This utility model proposes a novel washing roller structure. The roller utilizes a stainless steel base and a tapered sleeve, preferably made of corrosion-resistant stainless steel. The stainless steel base and sleeve are connected by a stainless steel partition, creating a hollow center. This minimizes material usage and reduces weight while ensuring the roller meets its full operational strength. Grooves are formed in the stainless steel base of the roller, within which a titanium carbonitride-based cermet layer is sprayed. This composite material, composed of metals (Co and Ni) and ceramic (TiCN), combines the advantages of both metals and ceramics, including excellent toughness and bending resistance, high temperature resistance, high strength, and oxidation resistance. It exhibits high wear resistance, corrosion resistance, and erosion resistance. Furthermore, the TiO2 surface oxide of the roller exhibits unique self-lubrication and a low friction coefficient. It does not react with other metals even after prolonged friction, resulting in a non-sticky coating. This makes it particularly suitable for use in aramid fiber production.

[0016] 2. In the present invention, the double-cone hole structure in the middle of the cone sleeve includes a first cone hole section, a first straight hole section and a second straight hole section connected in sequence, so that after the washing roller is installed in conjunction with the transmission shaft and other structures, it is not easy to fall off, is not easy to wear, and the connection parts are not easy to shift.

[0017] Third, in this utility model, the stainless steel base and the stainless steel partition, as well as the stainless steel partition and the cone sleeve, are connected by welding, making the processing relatively simple. In addition, a connecting portion is provided on the outside of the cone sleeve, and the stainless steel partition is installed with the cone sleeve through the connecting portion and then welded to the cone sleeve, thus making the connection between the structural components more stable.

[0018] Fourth, in the present invention, the depth of the groove is set to 0.1-0.5mm, preferably 0.3mm. According to tests, the 0.3mm titanium carbonitride-based metal ceramic layer has excellent acid and alkali corrosion resistance, and the processing difficulty is relatively lower, the cost is lower, and the structure is more stable.

[0019] 5. In the utility model, a plurality of mounting holes are provided on the stainless steel partition, a step mounting hole is provided at one end of the stainless steel base, and a tapered mounting hole is provided at the other end, which facilitates the assembly of the washing roller with components such as the drive shaft. After assembly, the washing roller runs more stably and is not easily damaged, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the structure of the washing roller (without filling the titanium carbonitride-based metal ceramic layer).

[0021] Figure 2 It is the left side view of the washing roller.

[0022] Figure 3 yes Figure 2 AA cross-sectional view.

[0023] Figure 4 It is a partial cross-sectional view of the washing roller.

[0024] Figure 5 yes Figure 1 Another side view of the middle washing roller.

[0025] Among them, 1. Stainless steel substrate; 2. Conical sleeve; 3. Stainless steel partition; 4. Groove; 5. Titanium carbonitride-based metal ceramic layer; 6. First conical hole section; 7. First straight hole section; 8. Second straight hole section; 9. Connecting part; 10. Mounting hole; 11. Step mounting hole; 12. Conical mounting hole. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0027] Example 1

[0028] This embodiment is the most basic embodiment, a corrosion-resistant washing roller, including a stainless steel base 1 and a cone sleeve 2, Figure 1-4 The stainless steel substrate 1 and the cone sleeve 2 are connected by a stainless steel partition 3. The cone sleeve 2 has a double-cone hole structure. A groove 4 is provided on the outer surface of the stainless steel substrate 1. The groove 4 is used to fill the titanium carbonitride-based metal ceramic layer 5.

[0029] Example 2

[0030] This embodiment is a further optimization of the embodiment 1. The difference is that the double-cone hole structure in the middle of the cone sleeve 2 includes a first cone hole section 6, a first straight hole section 7 and a second straight hole section 8 connected in sequence. Figure 3 The double-cone hole structure of the washing roller is not easy to fall off and wear after being installed with the transmission shaft and other structures, and the connection parts are not easy to shift.

[0031] Example 3

[0032] The difference between this embodiment and embodiment 1-2 is that the stainless steel base 1 and the stainless steel partition 3, and the stainless steel partition 3 and the cone sleeve 2 are all connected by welding. In this way, the processing difficulty of this structure is relatively lower and the cost is lower.

[0033] Example 4

[0034] The difference between this embodiment and embodiment 1-3 is that a connecting portion 9 is provided on the outside of the cone sleeve 2, and the stainless steel partition 3 is installed with the cone sleeve 2 through the connecting portion 9 and then welded. Figure 4 , making the connection between structural parts more stable.

[0035] Example 5

[0036] The difference between this embodiment and embodiment 1-4 is that: Figure 1 The depth of the groove 4 is preferably set to 0.1~0.5mm.

[0037] Example 6

[0038] The difference between this embodiment and embodiments 1-5 is that: the stainless steel partition 3 is provided with a plurality of mounting holes 10, Figure 1 、 3 .

[0039] Example 7

[0040] Compared with Examples 1-6, the present embodiment differs in that: a stepped mounting hole 11 is provided at one end of the stainless steel base 1; and a conical mounting hole 12 is provided at the other end, both of which facilitate assembly of the washing roller with components such as a drive shaft. After assembly, the washing roller runs more stably and is less prone to damage, thereby extending its service life.

[0041] Example 8

[0042] To facilitate public understanding of the present solution, this embodiment takes a corrosion-resistant washing roller with a better structure as an example to further illustrate the present solution.

[0043] like Figure 1-5 The washing roller includes a stainless steel base 1 and a conical sleeve 2. The stainless steel base 1 and the conical sleeve 2 are connected by a stainless steel partition 3. The conical sleeve 2 has a double-conical hole structure. A groove 4 is provided on the outer surface of the stainless steel base 1. The depth of the groove 4 is 0.3 mm. The groove 4 is used to fill a titanium carbonitride-based metal ceramic layer 5.

[0044] In this embodiment, the double-cone hole structure in the middle of the cone sleeve 2 includes a first cone hole section 6, a first straight hole section 7 and a second straight hole section 8 connected in sequence.

[0045] In this embodiment, the stainless steel base 1 and the stainless steel partition 3, and the stainless steel partition 3 and the cone sleeve 2 are all connected by welding. A connecting portion 9 is provided on the outside of the cone sleeve 2, and the stainless steel partition 3 is installed with the cone sleeve 2 through the connecting portion 9 and then welded.

[0046] In this embodiment, four mounting holes 10 are formed on the two stainless steel partitions 3 arranged on opposite sides, and the four mounting holes 10 are evenly distributed on the stainless steel partitions 3 .

[0047] In this embodiment, the stainless steel base 1 is provided with a stepped mounting hole 11 at one end and a tapered mounting hole 12 at the other end.

[0048] The washing roller in this embodiment utilizes a stainless steel base 1 and a tapered sleeve 2, also made of corrosion-resistant stainless steel. The stainless steel base 1 and sleeve 2 are connected by a stainless steel partition 3, resulting in a hollow center. This minimizes material usage and reduces weight while ensuring the roller meets its operational strength. A groove 4 is formed on the surface of the stainless steel base 1, and a titanium carbonitride-based cermet layer 5 is spray-coated within the groove. This material, a composite material composed of metals (Co and Ni) and ceramic (TiCN), combines the advantages of both metals and ceramics, including excellent toughness and bending resistance, high temperature resistance, high strength, and oxidation resistance. It also exhibits high wear resistance, corrosion resistance, and erosion resistance. This washing roller eliminates the aging issues associated with the internal support and drive shaft mating ends of conventional fiberglass reinforced plastic (FRP) washing rollers. Furthermore, the external structure of the stainless steel base 1 is also less susceptible to damage, improving the problem of fiber quality degradation caused by the roller and significantly extending its service life.

[0049] In addition, the surface oxide TiO2 of the washing roller has the characteristics of self-lubrication and low friction coefficient. It does not react with other metals during long-term friction and has the characteristics of non-stickiness. It is particularly suitable for aramid fiber production systems.

Claims

1. A corrosion-resistant washing roller, characterized in that: The invention comprises a stainless steel base (1) and a conical sleeve (2), wherein the stainless steel base (1) and the conical sleeve (2) are connected via a stainless steel partition (3), the conical sleeve (2) is a double-conical hole structure, and a groove (4) is provided on the outer surface of the stainless steel base (1), and the groove (4) is used to fill a titanium carbonitride-based metal ceramic layer (5).

2. A corrosion-resistant washing roller according to claim 1, characterized in that: The double-cone hole structure in the middle of the cone sleeve (2) comprises a first cone hole section (6), a first straight hole section (7) and a second straight hole section (8) which are connected in sequence.

3. The corrosion-resistant washing roller according to claim 1, characterized in that: The stainless steel base (1) and the stainless steel partition (3), as well as the stainless steel partition (3) and the cone sleeve (2) are all connected by welding.

4. A corrosion-resistant washing roller according to claim 3, characterized in that: A connecting portion (9) is provided on the outside of the cone sleeve (2), and the stainless steel partition plate (3) is installed with the cone sleeve (2) through the connecting portion (9) and then welded to the cone sleeve (2).

5. The corrosion-resistant washing roller according to claim 1, characterized in that: The depth of the groove (4) is 0.1-0.5 mm.

6. The corrosion-resistant washing roller according to claim 1, characterized in that: The stainless steel partition (3) is provided with a plurality of mounting holes (10).

7. The corrosion-resistant washing roller according to claim 1, characterized in that: The stainless steel base (1) has a stepped mounting hole (11) at one end and a tapered mounting hole (12) at the other end.

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