A quick positioning device for bar rolling roll changing and groove changing
The combination of the arc-shaped rotating plate and the bolt rod solves the problem of high positioning difficulty of the roll in the rolling mill, realizes the rapid positioning and fixing of the roll, and improves the efficiency of roll changing and slot changing.
Patent Information
- Application Number
- CN202521794759.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-22
AI Technical Summary
In the existing technology, the positioning of rolls in the rolling mill mostly adopts the traditional mechanical positioning structure, which makes it difficult to align the positioning pins in a narrow space, takes a long time, and reduces the efficiency of roll changing and slot changing.
The structure employs a combination of an arc-shaped rotating plate, an arc-shaped rotating plate II, a positioning arc-shaped plate, and a bolt rod to achieve rapid positioning and fixing of the roll neck. Positioning and fixing are completed by rotating the arc-shaped plate and rotating the bolt rod, simplifying the operation process and reducing the difficulty of alignment in confined spaces.
It enables rapid positioning and fixing of the rolls, simplifies the installation process, saves installation time, and improves the efficiency of roll and groove changing.
Smart Images
Figure CN224673463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bar rolling technology, and in particular to a quick positioning device for changing rolls and grooves in bar rolling. Background Technology
[0002] As a basic material widely used in many industries such as construction and machinery manufacturing, bar stock has a continuously growing market demand. In the bar stock rolling production process, the rolls are the core components, and their working condition directly affects the quality of the bars and production efficiency. As the rolling process progresses, the rolls need to be replaced regularly due to wear, thermal fatigue, and other reasons. At the same time, in order to meet the production needs of bars of different specifications, it is also necessary to change the grooves of different types, that is, to carry out roll changing and groove changing operations.
[0003] Currently, most common roll neck positioning methods employ traditional mechanical positioning structures, such as using positioning pins to position the roll within the mill. When installing the roll, the positioning pins need to be accurately inserted into the positioning holes on the roll neck and the corresponding positioning holes in the mill. In the confined space inside the mill, aligning the positioning pins becomes more difficult, resulting in longer processing times and reduced efficiency in roll and slot changes. Therefore, we propose a rapid positioning device for roll and slot changes in bar rolling. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a quick positioning device for changing rolls and grooves in bar rolling. This device can solve the problem that currently, most common roll neck positioning methods adopt traditional mechanical positioning structures, such as using positioning pins to position the roll in the rolling mill. When installing the roll, the positioning pin needs to be accurately inserted into the positioning hole on the roll neck and the corresponding positioning hole in the rolling mill. In the confined space inside the rolling mill, the difficulty of aligning the positioning pin increases, resulting in long time consumption and reduced efficiency of changing rolls and grooves.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid positioning device for changing rolls and grooves in bar rolling, comprising: A bar rolling base, with a roll mounting side plate fixedly connected to the top of the bar rolling base, and two mounting slots opened on the top of the roll mounting side plate; A roll positioning structure is located on the roll mounting side plate. The roll positioning structure includes two roll mounting seats, two roll necks, a roll body, and two rotating rods. The two roll mounting seats are slidably connected inside the corresponding mounting grooves and are fixedly installed inside the corresponding mounting grooves by bolts. The two roll necks are rotatably connected inside the corresponding roll mounting seats. The roll body is fixedly connected to the opposite surfaces of the two roll necks. Positioning grooves are provided on the outer surfaces of the two roll necks. The two rotating rods are fixedly connected to the side of the corresponding roll mounting seat away from the roll body. Threaded holes are provided on the opposite sides of the two roll mounting seats.
[0006] Preferably, the roll positioning structure further includes two arc-shaped rotating plates, two arc-shaped rotating plates, four positioning arc-shaped plates, and two bolt rods. The two arc-shaped rotating plates are rotatably connected to the outer surface of the corresponding rotating rods. The two bolt rods are threadedly connected to the inner threads of the corresponding threaded holes. The two arc-shaped rotating plates are fixedly installed to the corresponding arc-shaped rotating plates via bolt rods. The four positioning arc-shaped plates are respectively fixedly connected inside the two arc-shaped rotating plates and the two arc-shaped rotating plates. The four positioning arc-shaped plates are all located inside the corresponding positioning grooves.
[0007] Preferably, there are two roll positioning structures, and both roll positioning structures are set on the roll mounting side plate.
[0008] Preferably, the positioning arc plate has multiple rotating grooves inside, and rotating rollers are rotatably connected inside each of the multiple rotating grooves. The multiple rotating rollers are in rolling contact with the inner wall of the positioning groove.
[0009] Preferably, a plurality of grooves are formed on the outer surface of the roll body.
[0010] Preferably, the top of the roll mounting side plate is bolted with two mounting covers.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This rapid positioning device for changing rolls and slots in bar rolling achieves rapid positioning and fixing of the roll neck through the cooperation of arc-shaped rotating plate one, arc-shaped rotating plate two, positioning arc plate and bolt rod. When installing the roll, simply rotate arc-shaped rotating plate one and arc-shaped rotating plate two to make the positioning arc plate snap into the positioning slot, and then rotate the bolt rod to complete the positioning and fixing. The whole process is simple to operate and does not require complicated debugging and calibration. At the same time, it also eliminates the need to painstakingly align the positioning pins and positioning holes in the confined space of the rolling mill, thereby saving installation time and further improving the efficiency of changing rolls and slots. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the roll of this utility model; Figure 3 This is a schematic diagram of the roll mounting base structure of this utility model; Figure 4 This is a schematic diagram of the arc-shaped rotating plate of this utility model.
[0013] Reference numerals in the attached drawings: 1. Bar rolling base; 2. Roll body; 3. Mounting groove; 4. Mounting cover; 5. Roll mounting side plate; 6. Roll groove; 7. Roll neck; 8. Positioning groove; 9. Arc-shaped rotating plate one; 10. Arc-shaped rotating plate two; 11. Roll mounting seat; 12. Rotating rod; 13. Threaded hole; 14. Bolt rod; 15. Positioning arc plate; 16. Rotating roll; 17. Rotating groove. Detailed Implementation
[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0018] Please see Figure 1-4 This utility model provides a technical solution: a rapid positioning device for changing rolls and grooves in bar rolling, comprising: A bar rolling base 1 is provided, and a roll mounting side plate 5 is fixedly connected to the top of the bar rolling base 1. Two mounting grooves 3 are provided on the top of the roll mounting side plate 5. A roll positioning structure is located on the roll mounting side plate 5. The roll positioning structure includes two roll mounting seats 11, two roll necks 7, a roll body 2, and two rotating rods 12. The two roll mounting seats 11 are slidably connected inside the corresponding mounting grooves 3. The two roll mounting seats 11 are fixedly installed inside the corresponding mounting grooves 3 by bolts. The two roll necks 7 are rotatably connected inside the corresponding roll mounting seats 11. The roll body 2 is fixedly connected to the opposite surfaces of the two roll necks 7. The outer surfaces of the two roll necks 7 are provided with positioning grooves 8. The two rotating rods 12 are fixedly connected to the side of the corresponding roll mounting seat 11 away from the roll body 2. The opposite sides of the two roll mounting seats 11 are provided with threaded holes 13.
[0019] The roll positioning structure also includes two arc-shaped rotating plates 9, two arc-shaped rotating plates 10, four positioning arc-shaped plates 15, and two bolt rods 14. The two arc-shaped rotating plates 9 and two arc-shaped rotating plates 10 are rotatably connected to the outer surface of the corresponding rotating rods 12. The two bolt rods 14 are threadedly connected to the inner threads of the corresponding threaded holes 13. The two arc-shaped rotating plates 9 and the corresponding arc-shaped rotating plates 10 are fixedly installed by the bolt rods 14. The four positioning arc-shaped plates 15 are respectively fixedly connected to the inside of the two arc-shaped rotating plates 9 and the two arc-shaped rotating plates 10. The four positioning arc-shaped plates 15 are all located inside the corresponding positioning grooves 8.
[0020] There are two roll positioning structures, both of which are set on the roll mounting side plate 5. The interior of the positioning arc plate 15 has multiple rotating grooves 17, and rotating rollers 16 are rotatably connected inside the multiple rotating grooves 17. The multiple rotating rollers 16 are in rolling contact with the inner wall of the positioning groove 8. Multiple rolling grooves 6 are opened on the outer surface of the roll body 2. Two mounting covers 4 are bolted to the top of the roll mounting side plate 5.
[0021] Furthermore, when using this device, the bar rolling base 1 serves as the basic support for the entire device, the roll mounting side plate 5 is fixed on its top to provide a platform for the installation of the roll, the roll positioning structure is the core part to realize the rapid positioning and fixing of the roll, and the mounting cover 4 plays a certain role in protection and auxiliary positioning.
[0022] Place the roll body 2 between two roll mounting seats 11, so that the two roll necks 7 are rotatably connected to the corresponding roll mounting seats 11, ensuring that the roll body 2 can rotate freely. Rotate the arc-shaped rotating plate 1 9 and the arc-shaped rotating plate 2 10 so that they rotate around the rotating rod 12. Since the arc-shaped rotating plate 1 9 and the arc-shaped rotating plate 2 10 have a positioning arc plate 15 fixed inside, during the rotation, align the positioning arc plate 15 with the positioning groove 8 on the roll neck 7.
[0023] When the positioning arc plate 15 is located in the positioning groove 8, and the arc rotating plate 19 and the arc rotating plate 2 10 are in contact with each other, rotate the bolt rod 14 so that the bolt rod 14 is screwed into the threaded hole 13, thereby facilitating the fixing of the closed arc rotating plate 19 and the arc rotating plate 2 10. At the same time, the positioning arc plate 15 is also accurately inserted into the positioning groove 8, realizing the precise positioning and fixing of the roller neck 7.
[0024] Rotating rollers 16 are rotatably connected to multiple rotating grooves 17 inside the positioning arc plate 15. During the rotation of the roll body 2, the rotating rollers 16 roll in contact with the inner wall of the positioning groove 8. Compared with sliding friction, this rolling friction greatly reduces friction, reduces the resistance when the roll body 2 rotates, reduces energy loss, and also reduces wear on the positioning arc plate 15 and the inner wall of the positioning groove 8, thus extending the service life of the device.
[0025] Subsequently, the two roll mounting seats 11 are slid into the corresponding mounting grooves 3 at the top of the roll mounting side plate 5, and the roll mounting seats 11 are initially fixed in the mounting grooves 3 by bolts, so as to facilitate the fixed installation of the two roll bodies 2.
[0026] The quick positioning and fixing of the roll neck 7 is achieved through the cooperation of the first arc rotating plate 9, the second arc rotating plate 10, the positioning arc plate 15, and the bolt rod 14. When installing the roll, simply rotate the first arc rotating plate 9 and the second arc rotating plate 10 to make the positioning arc plate 15 snap into the positioning groove 8, and then rotate the bolt rod 14 to complete the positioning and fixing. The whole process is simple to operate and does not require complicated debugging and calibration. At the same time, it also eliminates the need to painstakingly align the positioning pins and positioning holes in the confined space of the rolling mill, thereby saving installation time and further improving the efficiency of roll changing and groove changing.
[0027] Structural Description: Bar rolling base 1: As the basic support component of the entire device, the top is fixedly connected to the roll mounting side plate 5, providing an installation reference for the roll positioning structure; Roll mounting side plate 5: It is fixedly connected to the top of the bar rolling base 1, and the top is provided with a mounting groove 3 to provide a platform for the installation and positioning of the roll mounting base 11; Mounting groove 3: It is opened on the top of the roll mounting side plate 5 to accommodate and slide the roll mounting seat 11, so as to realize the position adjustment and initial positioning of the roll mounting seat 11; Roll mounting base 11: It is slidably connected inside the corresponding mounting groove 3 and fixed by bolts. It is internally rotatably connected to the roll neck 7 to provide mounting support for the roll body 2. Roll neck 7: Rotatably connected inside the corresponding roll mounting base 11, with a positioning groove 8 on its outer surface, and fixedly connected to the roll body 2, serving as the support for the roll rotation; Roll body 2: It is fixedly connected to the opposite face of two roll necks 7, and has multiple rolling grooves 6 on its outer surface. It is the core working component for realizing bar rolling. Rotating rod 12: It is fixedly connected to the side of the corresponding roll mounting base 11 away from the roll body 2, and provides a rotating shaft for the arc-shaped rotating plate 9 and the arc-shaped rotating plate 10. Threaded hole 13: It is opened on the opposite side of the two roll mounting seats 11 and is threaded to the bolt rod 14 for fixing the arc rotating plate 9 and the arc rotating plate 10. Arc-shaped rotating plate 19: Rotatably connected to the outer surface of the corresponding rotating rod 12, and internally fixedly connected to the positioning arc-shaped plate 15, which cooperates with arc-shaped rotating plate 210 to achieve positioning of the roller neck 7; Arc-shaped rotating plate 2 10: Rotatably connected to the outer surface of the corresponding rotating rod 12, and internally fixedly connected to the positioning arc-shaped plate 15, which cooperates with arc-shaped rotating plate 1 9 to achieve positioning of the roller neck 7; Positioning arc plate 15: It is fixedly connected inside the arc rotating plate 1 9 and the arc rotating plate 2 10, and is located in the corresponding positioning groove 8. It achieves precise positioning of the roller neck 7 by cooperating with the positioning groove 8. Bolt rod 14: threaded connection with the corresponding threaded hole 13, used to fix the arc-shaped rotating plate 9 and the arc-shaped rotating plate 10 after they are attached; Rotating groove 17: It is formed inside the positioning arc plate 15 to provide rotation space for the rotating roller 16; Rotating roller 16: Rotarily connected inside the rotating groove 17, it rolls in contact with the inner wall of the positioning groove 8, reducing the friction between the positioning arc plate 15 and the positioning groove 8; Rolling groove 6: It is formed on the outer surface of the roll body 2 and is used to roll bars of different specifications; Mounting cover 4: Bolts are installed on the top of the roll mounting side plate 5, which protects and assists in positioning the roll positioning structure; Positioning groove 8: It is formed on the outer surface of the roller neck 7 to accommodate the positioning arc plate 15 and cooperate to achieve the positioning of the roller neck 7.
[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A rapid positioning device for changing rolls and grooves in bar rolling, characterized in that, include: A bar rolling base (1) is fixedly connected to the top of the bar rolling base (1) with a roll mounting side plate (5). Two mounting slots (3) are opened on the top of the roll mounting side plate (5). The roll positioning structure is located on the roll mounting side plate (5); The roll positioning structure includes two roll mounting seats (11), two roll necks (7), a roll body (2) and two rotating rods (12). The two roll mounting seats (11) are slidably connected to the inside of the corresponding mounting groove (3). The two roll mounting seats (11) are fixedly installed inside the corresponding mounting groove (3) by bolts. The two roll necks (7) are rotatably connected to the inside of the corresponding roll mounting seat (11). The main body of the roll (2) is fixedly connected to the opposite surface of the two roll necks (7). The outer surface of the two roll necks (7) is provided with positioning grooves (8). The two rotating rods (12) are fixedly connected to the side of the corresponding roll mounting seat (11) away from the main body of the roll (2). The opposite sides of the two roll mounting seats (11) are provided with threaded holes (13).
2. The rapid positioning device for changing rolls and grooves in bar rolling according to claim 1, characterized in that: The roll positioning structure also includes two arc-shaped rotating plates (9), two arc-shaped rotating plates (10), four positioning arc-shaped plates (15) and two bolt rods (14). The two arc-shaped rotating plates (9) and the two arc-shaped rotating plates (10) are rotatably connected to the outer surface of the corresponding rotating rod (12), and the two bolt rods (14) are connected to the internal threads of the corresponding threaded holes (13). Among them, the two arc-shaped rotating plates one (9) are fixedly installed with the corresponding arc-shaped rotating plates two (10) by bolt rods (14), and the four positioning arc plates (15) are fixedly connected to the inside of the two arc-shaped rotating plates one (9) and the two arc-shaped rotating plates two (10) respectively. The four positioning arc plates (15) are all located inside the corresponding positioning grooves (8).
3. The rapid positioning device for changing rolls and grooves in bar rolling according to claim 1, characterized in that: The number of the roll positioning structures is two, and both roll positioning structures are set on the roll mounting side plate (5).
4. The rapid positioning device for changing rolls and grooves in bar rolling according to claim 2, characterized in that: The positioning arc plate (15) has multiple rotating grooves (17) inside, and rotating rollers (16) are rotatably connected inside each of the multiple rotating grooves (17). The multiple rotating rollers (16) are in rolling contact with the inner wall of the positioning groove (8).
5. The rapid positioning device for changing rolls and grooves in bar rolling according to claim 1, characterized in that: Multiple grooves (6) are formed on the outer surface of the roll body (2).
6. The rapid positioning device for changing rolls and grooves in bar rolling according to claim 1, characterized in that: Two mounting covers (4) are bolted to the top of the roll mounting side plate (5).