A hot rolling mill with quick roll change mechanism

Abstract

The utility model discloses a hot rolling mill with quick roll changing mechanism, including frame, the top and bottom of both ends of frame inside are all fixedly installed with fixed rail, both ends of one side of fixed rail all are fixedly installed with fixed plate, the fixed plate fixed mounting is on the inner wall of frame, the side of fixed rail away from fixed plate is provided with the sliding slot, the inside slide of sliding slot is installed with slide rail, and the two slide rails of same horizontal height are provided with roll no.

Description

Technical Field

[0001] This utility model relates to the field of hot rolling mill technology, and in particular to a hot rolling mill with a quick roll changing mechanism. Background Technology

[0002] A hot rolling mill is a type of machinery used for metal processing. It rolls metal materials at high temperatures, thereby changing the shape and properties of the metal. However, in actual use, we have found that changing rolls on traditional hot rolling mills is very inconvenient. The traditional method involves using lifting tools to hoist the rolls and then sending them into the machine. After being sent in, the rolls must remain hoisted until they are installed and fixed on the machine. However, this process requires manual intervention. When the rolls are moved close to the machine, manual intervention is needed to push them into the machine and continuously adjust their position until they are positioned and fixed before the lifting tools are removed. The entire roll changing process is extremely time-consuming and inefficient, greatly affecting production efficiency. Moreover, excessive manual intervention reduces work safety.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This invention proposes a hot rolling mill with a rapid roll changing mechanism, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A hot rolling mill with a quick roll changing mechanism includes a frame. Fixed rails are fixedly installed at the top and bottom of both ends of the inner side of the frame. Fixed plates are fixedly installed at both ends of one side of the fixed rails. The fixed plates are fixedly installed on the inner wall of the frame. A sliding groove is opened on the side of the fixed rail away from the fixed plate. A slide rail is slidably installed inside the sliding groove. A roll is arranged between two slide rails at the same horizontal height. Bearing seats are detachably installed at both ends of the roll. The bearing seats are fixedly installed on the corresponding slide rails.

[0006] The present invention, as described above, is used for a hot rolling mill with a quick roll changing mechanism. Further, the bottom of both sides of the bearing seat is fixedly connected with a protrusion, and the bottom of the protrusion is engaged with the slide rail.

[0007] The present invention, as described above, is used for a hot rolling mill with a quick roll changing mechanism. Further, both ends of the inner side of the frame are fixedly installed with a fixed seat located between two rolls. Multiple rolls and rolls are rotatably installed between the two fixed seats, with the multiple rolls located between the multiple rolls.

[0008] The present invention, as described above, is used for a hot rolling mill with a quick roll changing mechanism. Further, a bracket is detachably installed on the top of the inner side of the frame, and an electric push rod is vertically installed on the inner side of the bracket. The output end of the electric push rod extends through to the top of the bracket and is fixedly installed with a top rod.

[0009] The present invention, as described above, is used for a hot rolling mill with a quick roll changing mechanism. Further, a connecting frame is embedded and fixedly installed on the top of the top rod, and the two sides of the connecting frame extend from the two sides of the support to the bottom of the support. A crossbar is fixedly installed on both sides of the bottom of the connecting frame.

[0010] The present invention further describes a hot rolling mill with a quick roll changing mechanism, wherein both sides of the bottom of the frame are fixedly installed with mounting base plates, and the mounting base plates are detachably and fixedly installed on the ground.

[0011] The present invention, as described above, is used for a hot rolling mill with a quick roll changing mechanism. Further, both ends of one side of the bearing seat are fixedly connected with fastening plates, and the fastening plates are detachably mounted on the frame.

[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model adopts a modular design that combines the bearing housing and the roll together. With the addition of a slide rail structure that can be opened and extended to the outside, the roll can be hoisted as a whole on the slide rail and guided into the machine for positioning and fixing by the slide rail. This allows for quick roll changing, reduces the time spent on roll changing operations, improves roll changing efficiency, increases production efficiency, reduces manual intervention, and improves work safety.

[0013] 2. This utility model features a protruding part integrally formed on the bearing housing. Therefore, when installing the bearing housing, the protruding part is locked in the slot and also on the slide rail. Specifically, part of the protruding part is inserted into the slot, while part is outside and overlaps the slide rail. With the cooperation of the slot, it can provide a limiting and guiding function for the installation of the bearing housing and the first roller, providing convenience for the user's assembly work.

[0014] 3. This utility model, through the arrangement of roll two and roll three, can achieve fine processing of workpieces by cooperating with roll two. Because roll two and roll three are matched in pairs, multi-mode hot rolling processing of workpieces can be realized, thereby improving the working efficiency of hot rolling mill, realizing multiple uses of one machine, and providing convenience for users' work.

[0015] 4. This utility model, through the arrangement of a bracket, electric push rod, top rod, connecting frame, and crossbar, allows the crossbar to move up and down to adjust its height under the push of the electric push rod. In use, the electric push rod is activated to pull down the top rod and connecting frame, causing the crossbar to move downwards as well. Thus, when installing the first roll and bearing housing, the upper part of the bearing housing overlaps between the two crossbars, providing lifting support for both the bearing housing and the roll. After the bearing housing and the first roll are fully installed in the frame, the bearing housing moves smoothly between the two crossbars. Then, the electric push rod is controlled to lift the connecting frame and top rod, causing the two crossbars to move upwards until they are blocked by the bearing housing. This allows the crossbars to provide lifting support for the upper bearing housing and the roll, ensuring the stability of the first roll during operation and providing convenience for the user.

[0016] 5. This utility model features a mounting base plate, which is located at the bottom of the frame to assist in assembly. This allows the machine to be installed on the ground or on corresponding equipment, providing convenience for the user's assembly work.

[0017] 6. This utility model features a fastening plate that is fixed to the bearing housing. Therefore, after the bearing housing and the first roll are installed, the fastening plate is then installed on the frame with bolts to further fix the bearing housing and the first roll, thereby improving the stability of the first roll and the bearing housing and providing convenience for the user's work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 A three-dimensional assembly diagram of the bearing housing; Figure 3 This is a partial three-dimensional exploded view of the present invention; Figure 4 A three-dimensional assembly diagram of the bearing housing and roll 1; Figure 5 A schematic diagram of the three-dimensional assembly of rolls two and three; Figure 6 This is a partial three-dimensional structural diagram of the present invention.

[0020] In the diagram: 1. Frame, 2. Fixed rail, 3. Fixed plate, 4. Slide groove, 5. Slide rail, 6. Slot, 7. Bearing seat, 8. Roll 1, 9. Protrusion, 10. Fixed seat, 11. Roll 2, 12. Roll 3, 13. Bracket, 14. Electric push rod, 15. Top rod, 16. Connecting frame, 17. Crossbar, 18. Mounting base plate, 19. Fastening plate. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0022] A hot rolling mill with a quick roll changing mechanism includes a frame 1. Fixed rails 2 are fixedly installed at the top and bottom of both ends of the inner side of the frame 1. Fixed plates 3 are fixedly installed at both ends of one side of the fixed rails 2. The fixed plates 3 are fixedly installed on the inner wall of the frame 1. A sliding groove 4 is provided on the side of the fixed rails 2 away from the fixed plates 3. A slide rail 5 is slidably installed inside the sliding groove 4. A roll 8 is arranged between two slide rails 5 at the same horizontal height. Bearing seats 7 are detachably installed at both ends of the roll 8. The bearing seats 7 are fixedly installed on the corresponding slide rails 5.

[0023] This utility model adopts a modular design that combines the bearing housing and the roll, and with the slide rail structure that can be opened and extended to the outside, the roll can be hoisted on the slide rail as a whole, and the slide rail will guide the roll into the machine for positioning and fixing, so as to quickly complete the roll changing work, reduce the time spent on roll changing operation, improve roll changing efficiency, improve production efficiency, reduce manual intervention, and improve work safety.

[0024] The specific usage process is as follows: First, a guide rail consisting of fixed rail 2 and slide rail 5 is installed on the inner side of the frame 1. This guide rail structure can be opened and extended outwards. During installation, it also guides and supports the rolls as they are fed into the machine, reducing manual adjustment and intervention, thereby improving roll changing efficiency and safety. It should be noted that this structural equipment is suitable for production lines or equipment where roll specifications are frequently changed. Two sets of slide rail structures are provided, each for installing one of the corresponding two rolls. During installation, the rolls are first lifted and moved to one side of the equipment using hoisting equipment. Before this, the fixed plate 3, fixed rail 2, and slide rail 5 must be installed. Remove the bolts connecting to frame 1, then pull slide rail 5 outwards, and slowly lower the roll so that the bearing seat 7 on roll 8 is positioned between the corresponding two slide rails 5. Continue lowering the roll until the protruding parts 9 on both sides of the bearing seat 7 engage with the corresponding slots 6 on the slide rail 5. The hoisting equipment can then be removed. The user then directly pushes roll 8 into the machine, which means pushing slide rail 5 into the fixed rail 2 for reset. It should be noted that the fixed rail 2 and slide rail 5 work together to guide and position the installation of roll 8. Therefore, when roll 8 is moved into the machine, slide rail 5 will also fully enter the fixed rail 2. The roller 8 will be positioned in the appropriate working position. Finally, the corresponding bolts are connected and tightened onto the frame 1, fixed plate 3, fixed rail 2, and bearing seat 7, thus completing the quick installation of roller 8. For disassembly, all corresponding bolts are removed, and roller 8 is pulled outwards. Roller 8 will then move outwards via bearing seat 7, driving slide rail 5. Slide rail 5 slides within the groove 4 on fixed rail 2 until roller 8 is removed from the machine. Roller 8 is then lifted using hoisting equipment. After replacing with a suitable roller 8, roller 8 is installed again following the above assembly process. This allows for quick replacement of roller 8, enabling the hot roller to be put into operation in a short time, improving production efficiency, and reducing manual intervention during operation. To improve work safety, it should be noted that the two rollers 8 are arranged vertically, and multiple rollers 11 and 12 are installed between them. These rollers 11 and 12 work in conjunction with the two rollers 8 to achieve hot rolling of the workpiece. After the rollers 8 are positioned, the fastening plate 19 on the bearing housing 7 is bolted to the frame 1 for further fixation, ensuring the stability of the rollers 8. It should be noted that the fixing plate 3 is fixed to the frame 1 with separate bolts, which are not the same bolts used for the fixed rail 2, slide rail 5, bearing housing 7, and frame 1. Therefore, when unlocking and moving the slide rail 5, the fixing plate 3 remains fixed to the frame 1.Meanwhile, the slide rail 5 is also fixed to the fixing plate 3. It should be noted that the protrusion 9 is clipped onto the slide rail 5 and also installed within the slot 6. Therefore, this modular design, which combines the bearing seat and the roll, along with the slide rail structure that can be opened and extended to the outside, allows the entire roll to be hoisted onto the slide rail. The slide rail then guides the roll into the machine for positioning and fixing, quickly completing the roll change operation, reducing roll change time, improving roll change efficiency, increasing production efficiency, reducing manual intervention, and improving work safety.

[0025] The bottom of both sides of the bearing seat 7 is fixedly connected with a protrusion 9, and the bottom of the protrusion 9 is stuck on the slide rail 5.

[0026] Specifically, the protrusion 9 is integrally formed on the bearing housing 7. Therefore, when installing the bearing housing 7, the protrusion 9 is locked in the slot 6 and also locked on the slide rail 5. Specifically, part of the protrusion 9 is inserted into the slot 6, and part is located outside and overlaps the slide rail 5. In this way, with the cooperation of the slot 6, it can provide a limiting and guiding function for the installation of the bearing housing 7 and the roll 8, and provide convenience for the user's assembly work.

[0027] Both ends of the inner side of the frame 1 are fixedly installed with a fixed seat 10 located between two rolls 8. Multiple rolls 11 and rolls 12 are rotatably installed between the two fixed seats 10, with multiple rolls 11 located between multiple rolls 12.

[0028] Specifically, the arrangement of roll 21 and roll 312, with roll 312 working in conjunction with roll 211, enables fine processing of workpieces. Because roll 211 and roll 312 are paired together, they can achieve multi-mode hot rolling processing of workpieces, thereby improving the working efficiency of the hot rolling mill, realizing multiple uses of one machine, and providing convenience for users' work.

[0029] A bracket 13 is detachably installed on the top of the inner side of the frame 1. An electric push rod 14 is vertically installed on the inner side of the bracket 13. The output end of the electric push rod 14 extends through to the top of the bracket 13 and is fixedly installed with a top rod 15. A connecting frame 16 is embedded and fixedly installed on the top of the top rod 15. The two sides of the connecting frame 16 extend from the two sides of the bracket 13 to the bottom of the bracket 13. A crossbar 17 is fixedly installed on both sides of the bottom of the connecting frame 16.

[0030] Specifically, the bracket 13, electric push rod 14, top rod 15, connecting frame 16, and crossbar 17 are arranged such that the crossbar 17 can move up and down to adjust its height under the push of the electric push rod 14. In use, activating the electric push rod 14 pulls down the top rod 15 and connecting frame 16, causing the crossbar 17 to move downwards as well. Thus, when installing the first roll 8 and the bearing housing 7, the upper part of the bearing housing 7 overlaps between the two crossbars 17, allowing the two crossbars 17 to provide lifting support for the bearing housing 7 and the first roll 8. The bearing seat 7 and the roll 8 are fully installed in the frame 1. The bearing seat 7 will then move between the two crossbars 17. Then, the electric push rod 14 will lift the connecting frame 16 and the top rod 15. At that time, the two crossbars 17 will also move upward until they are blocked by the bearing seat 7. In this way, the crossbars 17 can lift and support the bearing seat 7 and the roll 8 located above, thereby ensuring the stability of the roll 8 during operation and providing convenience for the user.

[0031] Mounting base plates 18 are fixedly installed on both sides of the bottom of the frame 1. The mounting base plates 18 can be detached and fixedly installed on the ground.

[0032] Specifically, the mounting base 18 is set at the bottom of the frame 1 to assist the frame 1 in assembly. In this way, the machine can be installed on the ground or on corresponding equipment, providing convenience for the user's work assembly.

[0033] Both ends of one side of the bearing housing 7 are fixedly connected to fastening plates 19, and the fastening plates 19 are detachably installed on the frame 1.

[0034] Specifically, the fastening plate 19 is fixed to the bearing housing 7. Therefore, after the bearing housing 7 and the roll 8 are installed, the fastening plate 19 is then installed on the frame 1 with bolts to further fix the bearing housing 7 and the roll 8, thereby improving the working stability of the roll 8 and the bearing housing 7 and providing convenience for the user's work.

[0035] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot rolling mill with a quick roll changing mechanism, comprising a frame (1), characterized in that: Fixed rails (2) are fixedly installed at the top and bottom of both ends of the inner side of the frame (1). Fixed plates (3) are fixedly installed at both ends of one side of the fixed rails (2). The fixed plates (3) are fixedly installed on the inner wall of the frame (1). A sliding groove (4) is opened on the side of the fixed rails (2) away from the fixed plates (3). A sliding rail (5) is slidably installed inside the sliding groove (4). A roller (8) is set between two sliding rails (5) at the same horizontal height. Bearing seats (7) can be detachably installed at both ends of the roller (8). The bearing seats (7) are fixedly installed on the corresponding sliding rails (5).

2. A hot rolling mill with a rapid roll changing mechanism according to claim 1, characterized in that: The bottom of both sides of the bearing seat (7) is fixedly connected with a protrusion (9), and the bottom of the protrusion (9) is stuck on the slide rail (5).

3. A hot rolling mill with a rapid roll changing mechanism according to claim 2, characterized in that: Both ends of the inner side of the frame (1) are fixedly installed with a fixed seat (10) between two rolls (8). Multiple rolls (11) and rolls (12) are rotatably installed between the two fixed seats (10). Multiple rolls (11) are located between multiple rolls (12).

4. A hot rolling mill with a quick roll changing mechanism according to claim 3, characterized in that: A bracket (13) is detachably installed on the top of the inner side of the frame (1). An electric push rod (14) is vertically installed on the inner side of the bracket (13). The output end of the electric push rod (14) extends through to the top of the bracket (13) and is fixedly installed with a top rod (15).

5. A hot rolling mill with a quick roll changing mechanism according to claim 4, characterized in that: A connecting frame (16) is embedded and fixedly installed on the top of the top rod (15). The two sides of the connecting frame (16) extend from the two sides of the bracket (13) to the bottom of the bracket (13). A crossbar (17) is fixedly installed on both sides of the bottom of the connecting frame (16).

6. A hot rolling mill with a quick roll changing mechanism according to claim 5, characterized in that: The bottom of the frame (1) is fixedly installed on both sides of the mounting base plate (18), which can be detached and fixedly installed on the ground.

7. A hot rolling mill with a quick roll changing mechanism according to claim 6, characterized in that: Both ends of one side of the bearing seat (7) are fixedly connected to fastening plates (19), and the fastening plates (19) can be detachably installed on the frame (1).

Images