Production process of mirror roller

Abstract

The invention discloses a mirror roller production process which specifically comprises the following steps: S1, welding operation: processing a shaft head and an inner pipe fitting of a mirror roller to proper sizes, aligning and then welding, S2, heat treatment operation: carrying out annealing heat treatment operation on a roller, removing stress to enable the surface of the roller to meet the required hardness requirement, and carrying out heat treatment on the roller; the invention relates to the technical field of industrial rollers. According to the production process of the mirror roller, basic heat treatment operation is completed in operations of S1-S7 for producing the mirror roller, grinding operation of rough machining and finish machining is carried out, grinding operation is carried out after a certain allowance is reserved, after the requirement is met, electroplating and chromium plating are completed, the quality of the product is improved, and finally the product is polished into the needed size. And finally, superior products and inferior-quality products can be distinguished through detection, and products which exceed the size and can be subjected to secondary processing in the inferior-quality products can be treated, so that the success rate of product production is effectively improved, and waste of materials is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of industrial rollers, in particular to a production process of a mirror roller. Background Art

[0002] The reference patent file is named: A production process for a mirror roller (patent publication number: CN114178799A, patent publication date: 2022-03-15), and its following steps: Material selection: Select stainless steel for turning, drilling, and rough grinding of the surface to obtain a roller; Grinding: Electrolytically corrode the surface of the roller, and rotate the roller to grind the circumference of the roller, and move the roller repeatedly along the axial direction of the roller during the grinding process; Electroplating: Plate a chromium coating on the circumference of the roller; Fine grinding: Grind the chromium coating; Polishing: Polish the chromium coating multiple times. This application makes the surface of the roller loose by electrolysis, which facilitates the grinding of the roller. The grinding time is reduced and the grinding effect is improved. The roller is rotated for grinding, and the roller is repeatedly moved along the axial direction of the roller during the rotation process, thereby improving the grinding uniformity of the grinding material on various parts of the circumference of the mirror roller, thereby improving the smoothness of the roller surface.

[0003] Based on the description in the above-mentioned documents, after the existing mirror rollers are processed, their surface roughness and runout are tested and the products are classified into various situations. Products that fail to meet the requirements are often discarded, but in fact they are not damaged and can meet the requirements through secondary processing, thus resulting in waste of materials. For this reason, the present invention provides a production process for mirror rollers. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a production process for mirror rollers, which solves the problem that after the existing mirror rollers are processed, their surface roughness and runout are detected and the products are classified into various situations. Often, products that fail to meet the requirements are discarded, but in fact they are not damaged and can meet the requirements through secondary processing, thus causing material waste.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A production process of a mirror roller, specifically comprising the following steps:

[0006] S1. Welding operation: After the shaft head and inner tube accessories of the mirror roller are processed to the appropriate size, they are aligned and then welded;

[0007] S2. Heat treatment operation: perform annealing heat treatment on the roller to remove stress and make the roller surface reach the required hardness requirement;

[0008] S3, grinding treatment: through rough machining and fine machining operations on the product surface, leaving a small amount of margin according to the size requirements of the product;

[0009] S4. Grinding operation: Check whether the roller surface runout meets the grinding requirements, grind the roller surface size according to the drawing requirements, and make the product reach the required surface roughness;

[0010] S5. Chrome plating operation: The mirror roller is hard chrome plated before grinding to ensure that the roller surface roughness meets the grinding requirements;

[0011] S6. Polishing operation: Use polishing to remove the defects on the roller surface so that the smoothness and brightness of the roller surface meet the requirements;

[0012] S7, Product testing: Test the roughness and runout of the product surface and complete the product screening operation.

[0013] Preferably, the shaft head and the inner tube are hot-fitted into the roller in S1, and after the roller is cooled after hot-fitting, the assembly parts of the roller are welded, and after welding, the heat is kept to reduce the cooling speed of the product.

[0014] Preferably, the processing cooling or heating temperature difference of the mirror roller is ±1°C, the surface hardness is HRC55-58, the hardness after chrome plating and polishing is HRC62, and the thermal deformation is not more than 0.01mm.

[0015] Preferably, the rough processing operation in S3 is performed by subjecting the processed product to three passes of rough rolling, during which the rolling force is controlled to remain stable, the rolling force is 140-150 tons, the thickness of the mirror rough-rolled product is 1.5 mm, and the yield strength is not less than 180 MPa, wherein the speed of the first and second passes of the mirror rough rolling does not exceed 48 m / min, and the speed of the third pass does not exceed 65 m / min.

[0016] Preferably, the finishing operation of S3 is to perform three passes of mirror finishing rolling on the cleaned mirror rough-rolled product, and the rolling force is controlled to remain stable during the rolling process, and the rolling force does not exceed 160 tons, wherein the difference in rolling force between each pass does not exceed 10 tons, and the speed of the first and second passes of mirror finishing rolling does not exceed 48m / min, and the rolling speed of other passes does not exceed 65m / min.

[0017] Preferably, in S5, the hard chrome plating operation of the mirror roller is completed by electroplating chrome, wherein two clamping plates are connected to the two sides of the mirror roller, and the electroplating machine is connected to direct current, and the current enters the plating solution to perform electroplating operation on the surface of the mirror roller.

[0018] Preferably, the polishing operation of S6 uses compressed air as a power source to form a high-speed jet beam to spray glass sand at high speed onto the surface of the mirror roller to be processed, thereby changing the roughness of the outer surface of the mirror roller.

[0019] Preferably, the result after the detection in S7 is as follows:

[0020] Result 1: If the processed product meets the required requirements, it is classified as a high-quality product;

[0021] Result 2: If the processed product does not meet the set requirements and is smaller than the required size, it will be directly classified as defective;

[0022] Result three: If the processed product does not meet the set requirements and is larger than the required size, it will be processed again through the operation of S6, and then tested again through the operation of S7 until it meets the requirements or is scrapped.

[0023] Beneficial Effects

[0024] The present invention provides a production process for a mirror roller. Compared with the prior art, it has the following beneficial effects:

[0025] The production process of the mirror roller completes the basic heat treatment operation and performs rough machining and fine machining grinding operations in the S1-S7 operation of the mirror roller production. After completion, a certain margin is left for grinding operation. After meeting the requirements, electroplating and chrome plating are completed to improve the quality of the product. Finally, the product is polished to the required size. Finally, the detection can not only distinguish between high-quality and defective products, but also process the products that exceed the size for secondary processing among the defective products, thereby effectively improving the success rate of product production and avoiding material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of the production process of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 , the present invention provides a technical solution:

[0029] A production process for a mirror roller comprises the following steps:

[0030] S1. Welding operation: After the shaft head and inner tube accessories of the mirror roller are processed to the appropriate size, they are aligned and then welded;

[0031] S2. Heat treatment operation: perform annealing heat treatment on the roller to remove stress and make the roller surface reach the required hardness requirement;

[0032] S3, grinding treatment: through rough machining and fine machining operations on the product surface, leaving a small amount of margin according to the size requirements of the product;

[0033] S4. Grinding operation: Check whether the roller surface runout meets the grinding requirements, grind the roller surface size according to the drawing requirements, and make the product reach the required surface roughness;

[0034] S5. Chrome plating operation: The mirror roller is hard chrome plated before grinding to ensure that the roller surface roughness meets the grinding requirements;

[0035] S6. Polishing operation: Use polishing to remove the defects on the roller surface so that the smoothness and brightness of the roller surface meet the requirements;

[0036] S7, Product testing: Test the roughness and runout of the product surface and complete the product screening operation.

[0037] Among them, through the operation of S1-S7 in the production of mirror rollers, basic heat treatment operations are completed, and rough machining and fine machining grinding operations are carried out. After completion, a certain margin is left for grinding operations. After meeting the requirements, electroplating and chrome plating are completed to improve the quality of the product. Finally, the product is polished to the required size. Finally, through testing, not only can high-quality and defective products be distinguished, but also products that exceed the size and can be processed for secondary processing among defective products can be processed, thereby effectively improving the success rate of product production and avoiding material waste.

[0038] In the embodiment of the present invention, the shaft head and the inner tube are hot-fitted into the roller in S1, and after the roller is cooled after hot-fitting, the assembly parts of the roller are welded, and after welding, the roller is kept warm to reduce the cooling speed of the product.

[0039] In the embodiment of the present invention, the processing cooling or heating temperature difference of the mirror roller is ±1°C, the surface hardness is HRC55-58, the hardness after chrome plating and polishing is HRC62, and the thermal deformation is not greater than 0.01mm.

[0040] In the embodiment of the present invention, the rough processing operation in S3 is performed by subjecting the processed product to three passes of rough rolling. During the rolling process, the rolling force is controlled to remain stable, the rolling force is 140-150 tons, the thickness of the mirror rough-rolled product is 1.5 mm, and the yield strength is not less than 180 MPa. Among them, the speed of the first and second passes of the mirror rough rolling does not exceed 48 m / min, and the speed of the third pass does not exceed 65 m / min.

[0041] In the embodiment of the present invention, the finishing operation of S3 is to perform three passes of mirror finishing rolling on the cleaned mirror rough-rolled product. During the rolling process, the rolling force is controlled to remain stable and the rolling force does not exceed 160 tons, wherein the difference in rolling force between each pass does not exceed 10 tons, and the speed of the first and second passes of the mirror finishing rolling does not exceed 48m / min, and the rolling speed of other passes does not exceed 65m / min.

[0042] In the embodiment of the present invention, the hard chrome plating operation of the mirror roller is completed by electroplating chrome in S5, wherein two clamping plates are connected to the two sides of the mirror roller, and the electroplating machine is connected to direct current, and the current enters the plating solution to perform electroplating operation on the surface of the mirror roller.

[0043] In the embodiment of the present invention, the polishing operation of S6 uses compressed air as a power to form a high-speed jet beam to spray glass sand at high speed onto the surface of the mirror roller to be processed, so that the roughness of the outer surface of the mirror roller is changed.

[0044] In the embodiment of the present invention, the result after the detection in S7 is as follows:

[0045] Result 1: If the processed product meets the required requirements, it is classified as a high-quality product;

[0046] Result 2: If the processed product does not meet the set requirements and is smaller than the required size, it will be directly classified as defective;

[0047] Result three: If the processed product does not meet the set requirements and is larger than the required size, it will be processed again through the operation of S6, and then tested again through the operation of S7 until it meets the requirements or is scrapped.

[0048] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for a mirror roller, characterized in that: The specific steps include: S1. Welding operation: After the shaft head and inner tube accessories of the mirror roller are processed to the appropriate size, they are aligned and then welded; S2. Heat treatment operation: perform annealing heat treatment on the roller to remove stress and make the roller surface reach the required hardness requirement; S3, grinding treatment: through rough machining and fine machining operations on the product surface, leaving a small amount of margin according to the size requirements of the product; S4. Grinding operation: Check whether the roller surface runout meets the grinding requirements, grind the roller surface size according to the drawing requirements, and make the product reach the required surface roughness; S5. Chrome plating operation: The mirror roller is hard chrome plated before grinding to ensure that the roller surface roughness meets the grinding requirements; S6. Polishing operation: Use polishing to remove the defects on the roller surface so that the smoothness and brightness of the roller surface meet the requirements; S7, Product testing: Test the roughness and runout of the product surface and complete the product screening operation.

2. The production process of a mirror roller according to claim 1, characterized in that: In the step S1, the shaft head and the inner tube are hot-fitted into the roller, and after the roller is cooled after hot-fitting, the assembly parts of the roller are welded, and after welding, the roller is kept warm to reduce the cooling speed of the product.

3. The production process of a mirror roller according to claim 1, characterized in that: The processing cooling or heating temperature difference of the mirror roller is ±1°C, the surface hardness is HRC55-58, the hardness after chrome plating and polishing is HRC62, and the thermal deformation is not more than 0.01mm.

4. The production process of a mirror roller according to claim 1, characterized in that: The rough processing operation in S3 is to perform three passes of rough rolling on the processed product. During the rolling process, the rolling force is controlled to remain stable, the rolling force is 140-150 tons, the thickness of the mirror rough rolling product is 1.5mm, and the yield strength is not less than 180Mpa. Among them, the speed of the first and second passes of the mirror rough rolling does not exceed 48m / min, and the speed of the third pass does not exceed 65m / min.

5. The production process of a mirror roller according to claim 1, characterized in that: The finishing operation of S3 is to perform three passes of mirror finishing rolling on the cleaned mirror rough-rolled product. During the rolling process, the rolling force is controlled to remain stable and the rolling force does not exceed 160 tons, wherein the difference in rolling force between each pass does not exceed 10 tons, the speed of the first and second passes of mirror finishing rolling does not exceed 48m / min, and the rolling speed of other passes does not exceed 65m / min.

6. The production process of a mirror roller according to claim 1, characterized in that: In the S5, the hard chrome plating operation of the mirror roller is completed by electroplating chrome, wherein two clamping plates are connected to the two sides of the mirror roller, and the electroplating machine is connected to direct current, and the current enters the electroplating solution to perform electroplating operation on the surface of the mirror roller.

7. The production process of a mirror roller according to claim 1, characterized in that: The polishing operation of S6 uses compressed air as a power source to form a high-speed jet beam to spray glass sand at high speed onto the surface of the mirror roller to be processed, thereby changing the roughness of the outer surface of the mirror roller.

8. The production process of a mirror roller according to claim 1, characterized in that: The results of the detection in S7 are as follows: Result 1: If the processed product meets the required requirements, it is classified as a high-quality product; Result 2: If the processed product does not meet the set requirements and is smaller than the required size, it will be directly classified as defective; Result three: If the processed product does not meet the set requirements and is larger than the required size, it will be processed again through the operation of S6, and then tested again through the operation of S7 until it meets the requirements or is scrapped.

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