Square steel roll with adjustable pass

Abstract

The utility model discloses a square steel roller of adjustable hole type, including hot roller, the quantity of hot roller is two, be provided with a plurality of V type groove on the hot roller, and the size of a plurality of V type groove gradually decreases from left to right, and the length of two sides of single V type groove is same. The utility model discloses two hot rollers with multiple size decreasing V type groove, can flexibly adjust distribution and form different size square hole, rectangular hole, and adapt to different size square, rectangular bar rolling, simple structure, low in cost.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, and in particular to a square steel rolling mill with adjustable die shape. Background Technology

[0002] Square bars, used as raw materials for semiconductor valve bodies or other mechanical equipment, come in various sizes and specifications, including squares and rectangles, and need to be hot-rolled or cold-rolled to the specified dimensions. Traditional hot rolling or cold drawing processes require multiple sets of dies or rolls, necessitating the changing of different dies or rolls during the rolling process, which is time-consuming, labor-intensive, inefficient, and costly. Therefore, there is an urgent need to develop a simple, low-cost square steel roll with adjustable bores, using two hot rolling rolls with multi-sized decreasing V-grooves, which can flexibly adjust the distribution to form square and rectangular bores of different sizes, adapting to the rolling of square and rectangular bars of different sizes, to overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0003] The purpose of this invention is to provide a square steel roll with adjustable die shape to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable square steel roll includes two hot rolling rolls, each hot rolling roll having multiple V-grooves. The size of the multiple V-grooves gradually decreases from left to right, and the two sides of each individual V-groove are the same length.

[0006] Preferably, the two hot rolling rolls are arranged completely opposite each other, and the space between the two hot rolling rolls is composed of multiple V-shaped grooves forming multiple square grooves of different sizes.

[0007] Preferably, the two hot rolling rolls are staggered left and right and up and down, and the space between the two hot rolling rolls is formed by multiple V-shaped grooves that make up multiple rectangular grooves of different sizes.

[0008] Preferably, the hot rolling roll is made of forged steel 55NiCrMoV.

[0009] Preferably, the outer surface of the hot rolling roll has a hard chrome plating layer.

[0010] The beneficial effects of this utility model are as follows: When rolling square bars, the adjustable-gauge square steel rolls are positioned so that two hot rolling rolls are perfectly aligned vertically, creating multiple square grooves of different sizes between them. Based on the deformation requirements, one of the groove types is chosen as the final groove type, while the others serve as initial and intermediate pass groove types, ultimately achieving the required dimensions and reducing the rolling force per pass. When rolling rectangular bars, the two hot rolling rolls are staggered horizontally, and the roll gap is adjusted to create multiple rectangular grooves between them. Similarly, one groove type can be chosen as the final size groove type, while the others serve as initial and intermediate pass groove types, ultimately achieving the desired dimensions. In summary, this utility model, using two hot rolling rolls with multi-sized decreasing V-grooves, can flexibly adjust the distribution to form square and rectangular grooves of different sizes, adapting to the rolling of square and rectangular bars of different sizes. It has a simple structure and low cost. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front structure of the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the front structure of the present invention. Figure 2 .

[0013] Legend:

[0014] 1. Hot rolling roll; 101. V-groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Specific implementation examples are given below.

[0017] Example 1

[0018] See Figure 1 In this embodiment of the present invention, a square steel roll with adjustable die shape includes two hot rolling rolls 1. Each hot rolling roll 1 is provided with a plurality of V-grooves 101. The size of the plurality of V-grooves 101 gradually decreases from left to right. The two sides of a single V-groove 101 are the same length. The two hot rolling rolls 1 are arranged completely opposite each other. Between the two hot rolling rolls 1, the plurality of V-grooves 101 form a plurality of square grooves of different sizes, so as to roll square raw materials of different sizes.

[0019] Example 2

[0020] See Figure 2 The two hot rolling rolls 1 are staggered left and right and up and down, so that multiple V-shaped grooves 101 are formed between the two hot rolling rolls 1 to form multiple rectangular grooves of different sizes, so as to roll rectangular raw materials of different sizes.

[0021] Example 3

[0022] See Figure 1 , 2 The hot rolling roll 1 is made of forged steel 55NiCrMoV, which gives it high tensile strength. This meets the requirements of the roll bearing high rolling load and resisting wear of the rolled parts. It also reduces the risk of impact fracture and crack propagation due to its excellent toughness and fatigue resistance. Furthermore, it has slow hardness decay and good thermal stability at high temperatures. The outer surface of the hot rolling roll 1 has a hard chrome plating layer, which further improves the wear resistance of the hot rolling roll 1.

[0023] Working principle: This adjustable square steel roll, when rolling square bars, sets two hot rolling rolls 1 vertically aligned so that multiple square grooves of different sizes are formed between the two hot rolling rolls 1. According to the deformation requirements, one of the grooves is used as the final groove, while the other grooves are used as the initial and intermediate pass grooves, ultimately achieving the required size and reducing the rolling force per pass. When rolling rectangular bars, the two hot rolling rolls 1 are staggered left and right, and then the roll gap is adjusted so that multiple rectangular grooves are formed between the two hot rolling rolls 1. Similarly, one groove can be used as the final size groove, while the other grooves are used as the initial and intermediate pass grooves, ultimately achieving the required size.

[0024] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A square steel roll with adjustable die profile, characterized in that, It includes a hot rolling roll (1), the number of which is two, and the hot rolling roll (1) is provided with a plurality of V-grooves (101). The size of the plurality of V-grooves (101) gradually decreases from left to right, and the two sides of a single V-groove (101) are the same.

2. The adjustable-gauge square steel roll according to claim 1, characterized in that, The two hot rolling rolls (1) are arranged completely opposite each other, and the two hot rolling rolls (1) are separated by multiple square grooves of different sizes formed by multiple V-shaped grooves (101).

3. The square steel roll with adjustable pass profile according to claim 1, characterized in that, The two hot rolling rolls (1) are staggered left and right and up and down, and the two hot rolling rolls (1) are separated by multiple rectangular grooves of different sizes formed by multiple V-shaped grooves (101).

4. The square steel roll with adjustable pass profile according to claim 1, characterized in that, The hot rolling roll (1) is made of forged steel 55NiCrMoV.

5. The square steel roll with adjustable pass profile according to claim 4, characterized in that, The outer surface of the hot rolling roll (1) has a hard chrome plating layer.

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