Roll collar type rolling mill for continuous micro-tension rolling of bars

Abstract

The utility model relates to the technical field of metal rolling, and discloses a bar continuous micro-tension rolling roll collar type rolling mill which comprises a base, supporting frames are fixedly connected to the left side and the right side of the upper portion of the base respectively, roll shafts are arranged on the upper side and the lower side of the corresponding sides of the supporting frames respectively, and short shafts are fixedly connected to the two ends of each roll shaft respectively. A bearing is arranged outside the short shaft, sealing covers are in threaded connection with the front portion and the rear portion of one side of the interior of the bearing correspondingly, sealing balls are arranged at the bottoms of the sealing covers, moving plates are fixedly connected to the bottoms of the sealing balls, springs are fixedly connected to the bottoms of the moving plates, and an oil injection groove is formed in one side of the interior of the bearing. And the sealing ball is connected into the oil injection groove in a sliding manner. According to the utility model, the leakage of lubricating oil is effectively prevented, the normal operation and production safety of the rolling mill are guaranteed, the rolling precision and stability are improved, the disassembly and replacement are convenient, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal rolling, in particular to a roller ring rolling mill for continuous micro-tension rolling of bars. Background Art

[0002] A continuous micro-tension rolling mill for bars is a device used to roll metal bars. It utilizes a roller-ring structure, with multiple sets of rollers continuously rolling the metal bars to achieve plastic deformation. Micro-tension rolling technology applies a slight tension during the rolling process, improving the smoothness and uniformity of the metal surface while also controlling the shape and dimensional accuracy of the bars.

[0003] After searching, the Chinese patent announcement number: CN2813131Y discloses a multi-roll mill for eliminating the rolling marks of plate and strip materials, including a frame and an upper tower roller system and a lower tower roller system. The frame is a frame composed of a panel, a back plate, a top plate and a bottom plate; the back plate surface is provided with a feed port; the panel surface is provided with a discharge port; the backing roller is connected to the upper roller seat and the lower roller seat in a stacked manner through a roller seat fixedly connected thereto; a pressing device is distributed between the inner wall of the top plate and the upper roller seat; an adjustment device is provided between the inner wall of the bottom plate and the lower roller seat; the backing roller is A segmented roller is composed of multiple roller rings arranged in an interval manner; multiple backing rollers are arranged in a staggered and parallel manner. Although this patented technology ensures the surface quality of the rolled piece by the staggered arrangement of the backing rollers, and the backing rollers can be automatically adjusted to improve accuracy without increasing excessive manufacturing costs through the decomposed arrangement of the upper and lower roller seats, the oil is prone to leakage, affecting the normal operation and production safety of the rolling mill. Therefore, those skilled in the art provide a continuous micro-tension rolling roller ring mill for bars to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a continuous micro-tension rolling roller ring mill for bars, aiming to improve the problem in the prior art that oil is easily leaked, affecting the normal operation and production safety of the rolling mill.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The roller ring rolling mill for continuous micro-tension rolling of bars includes a base, and support frames are fixedly connected to the left and right sides of the upper part of the base. Roll shafts are arranged above and below the corresponding sides of the support frames, and short shafts are fixedly connected to both ends of the roller shafts. A bearing is arranged on the outside of the short shaft, and a sealing cover is threadedly connected to the front and rear sides of the inner side of the bearing. A sealing ball is arranged at the bottom of the sealing cover, and a movable plate is fixedly connected to the bottom of the movable plate. A spring is fixedly connected to the bottom of the movable plate, and an oil filling groove is opened on the inner side of the bearing, and the sealing ball is slidably connected to the inside of the oil filling groove. One end of the spring is fixedly connected to the inner wall of the corresponding side of the oil filling groove, and a reflux component is arranged on the corresponding side of the oil filling groove.

[0007] Through the above technical solution, the sealing cover is opened and the sealing ball is pushed by an external object to separate it from the oil filling groove, and at the same time, the movable plate and the spring are squeezed to allow the lubricating oil to flow into the through hole through the gap between the sealing ball and the oil filling groove. The sealing ball is loosened to block the oil filling groove, and further protection is provided by the sealing cover.

[0008] Furthermore, the reflux component includes a flow hole, which is opened on the corresponding side of the oil filling groove. A flow groove is opened on the corresponding side of the flow hole. The flow grooves are evenly distributed and opened around the inside of the bearing. A through hole is opened on one side of the flow groove, and balls are arranged inside the flow groove.

[0009] Through the above technical solution, the lubricating oil flows into the flow groove through the flow hole. When the bearing rotates, it drives the ball to rotate, so that the lubricating oil flows through the through hole to the short shaft for lubrication. At the same time, the lubricating oil flows to the inside of other flow grooves through the rotation of the bearing.

[0010] Furthermore, a mounting block is provided on the outside of the bearing, a fixed block is fixedly connected to the rear part of one side of the mounting block, a connecting tube is fixedly connected to the inside of the fixed block, a bolt is threadedly connected to the inner side of the connecting tube, and one end of the bolt is externally threadedly connected to the moving block, the upper and lower sides of the moving block are fixedly connected to the first rotating seat, the inside of the first rotating seat is rotatably connected to a telescopic piece, one end of the telescopic piece is rotatably connected to the second rotating seat, and a clamping block is fixedly connected to one side of the second rotating seat.

[0011] Through the above technical solution, the movable block slides in the connecting tube to the inside of the card slot by rotating the bolt, so that the card block can be inserted into the card slot. While the movable block moves, the telescopic member rotates in the first rotating seat and the second rotating seat, so that the card block is completely inserted into the inside of the card slot through the rebound force of the telescopic member, and the fixed block is fixed to the support frame to ensure the stability of the roller shaft.

[0012] Furthermore, a plurality of slots are provided on one side of the interior of the support frame, and the card blocks are slidably connected inside the slots.

[0013] Through the above technical solution, the fixed block is fixedly connected to the support frame to ensure the stability of the roller shaft.

[0014] Furthermore, the inner thread of the support frame is connected to a screw rod, the outer thread of the screw rod is connected to an upper mounting block, and the upper end of the screw rod is fixedly connected to a turntable.

[0015] Through the above technical solution, the distance between the two rollers can be adjusted.

[0016] Furthermore, a mounting groove is provided inside the support frame, and the mounting block is slidably connected inside the mounting groove.

[0017] Through the above technical solution, the distance between the two rollers can be adjusted according to the required rolling size.

[0018] Furthermore, the clamping block is slidably connected to the interior of the connecting cylinder.

[0019] Through the above technical solution, the fixing block is separated from the supporting frame and is no longer fixed.

[0020] Furthermore, docking rods are fixedly connected to the upper, lower, front and back sides of the corresponding side of the support frame.

[0021] Through the above technical solution, the bar is supported and the rolling shape is adjusted.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the coordinated use of sealing balls, movable plates, springs, oil filling grooves, flow holes, flow grooves, bearings, balls, short shafts, sealing covers and other structures, it is possible to effectively prevent lubricating oil leakage and ensure the normal operation of the rolling mill and production safety.

[0024] 2. In the utility model, the precision and stability of rolling are improved through the coordinated use of structures such as bolts, moving blocks, telescopic parts, first rotating seat, second rotating seat, slots, connecting cylinders, turntables, screws, mounting blocks, and rollers. It is also easy to disassemble and replace, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a roller ring mill for continuous micro-tension rolling of bars proposed in the present invention;

[0026] Figure 2 This is a vertical cross-sectional view of a bearing of a roller ring mill for continuous micro-tension rolling of bars proposed in the present invention;

[0027] Figure 3This is a cross-sectional view of a bearing of a roller ring mill for continuous micro-tension rolling of bars proposed in the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the fixed block of the roller ring mill for continuous micro-tension rolling of bars proposed in the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A.

[0030] Legend:

[0031] 1. Base; 2. Support frame; 3. Fixed block; 4. Connecting tube; 5. Short shaft; 6. Bearing; 7. Mounting block; 8. Sealing cover; 9. Mounting groove; 10. Screw; 11. Turntable; 12. Roller; 13. Docking rod; 14. Flow groove; 15. Ball; 16. Through hole; 17. Flow hole; 18. Sealing ball; 19. Moving plate; 20. Spring; 21. Oil filling groove; 22. Moving block; 23. Clamping slot; 24. Clamping block; 25. First rotating seat; 26. Telescopic member; 27. Second rotating seat; 28. Bolt. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment of a continuous micro-tension rolling roller ring mill for bars, comprising a base 1, wherein the left and right sides of the upper part of the base 1 are fixedly connected to support frames 2, and roller shafts 12 are arranged on the upper and lower sides of the corresponding sides of the support frames 2, and short shafts 5 are fixedly connected at both ends of the roller shaft 12. A bearing 6 is arranged on the outside of the short shaft 5, and a sealing cover 8 is threadedly connected to the front and rear sides of the inner side of the bearing 6. A sealing ball 18 is arranged on the bottom of the sealing cover 8, and a movable plate 19 is fixedly connected to the bottom of the movable plate 19. A spring 20 is fixedly connected to the bottom of the movable plate 19, and an oil filling groove 21 is opened on the inner side of the bearing 6, and the sealing ball 18 is slidably connected to the inside of the oil filling groove 21. One end of the spring 20 is fixedly connected to the inner wall of the corresponding side of the oil filling groove 21, and a reflux component is arranged on the corresponding side of the oil filling groove 21.

[0034] The reflux component includes a flow hole 17, which is opened on the corresponding side of the oil filling groove 21. A flow groove 14 is opened on the corresponding side of the flow hole 17. The flow grooves 14 are evenly distributed and opened around the inside of the bearing 6. A through hole 16 is opened on one side of the flow groove 14, and a ball 15 is arranged inside the flow groove 14.

[0035] By opening the sealing cover 8 and squeezing the sealing ball 18 through an external object, the spring 20 is squeezed and moved through the movable plate 19, and the lubricating oil is injected into the oil filling groove 21, enters the flow groove 14 through the flow hole 17, and rotates through the bearing 6 to drive the ball 15 to rotate, so that the lubricating oil flows in the flow groove 14 to the short shaft 5 for lubrication, and rotates through the bearing 6 to make the lubricating oil flow through the through hole 16 to other flow grooves 14, thereby avoiding the overflow of the lubricating oil. The sealing ball 18 is loosened to block the oil filling groove 21, and further protection is performed through the sealing cover 8.

[0036] Reference Figure 1 、 Figure 4 and Figure 5 , a mounting block 7 is provided on the outside of the bearing 6, and a fixed block 3 is fixedly connected to the rear part of one side of the mounting block 7. The interior of the fixed block 3 is fixedly connected to the connecting tube 4, and a bolt 28 is threadedly connected to the inner side of the connecting tube 4. One end of the bolt 28 is externally threadedly connected to the moving block 22. The upper and lower sides of the moving block 22 are fixedly connected to the first rotating seat 25, and the internal rotation of the first rotating seat 25 is connected to the telescopic member 26. One end of the telescopic member 26 is rotatably connected to the second rotating seat 27. One side of the second rotating seat 27 is fixedly connected to a clamping block 24. A plurality of clamping slots 23 are opened on the upper and lower sides of the inner side of the support frame 2. The clamping block 24 is slidably connected to the inside of the clamping slot 23, and the clamping block 24 is slidably connected to the inside of the connecting tube 4.

[0037] By rotating the bolt 28, the movable block 22 moves inside the connecting tube 4, and the clamping block 24 moves to the inside of the clamping slot 23. At the same time, the telescopic member 26 rotates inside the first rotating seat 25 and the second rotating seat 27, so that the clamping block 24 is completely inserted into the clamping slot 23 due to the rebound force of the telescopic member 26, thereby ensuring the stability of the roller shaft 12.

[0038] Reference Figure 1 The internal thread of the support frame 2 is connected to a screw rod 10, the external thread of the screw rod 10 is connected to the upper mounting block 7, the upper end of the screw rod 10 is fixedly connected to a turntable 11, a mounting groove 9 is opened inside the support frame 2, and the mounting block 7 is slidably connected to the inside of the mounting groove 9; the corresponding side of the support frame 2 is fixedly connected to a docking rod 13 on both the upper and lower front and back sides.

[0039] By rotating the turntable 11 to drive the screw 10 to rotate, the upper mounting block 7 moves inside the mounting groove 9, and the distance between the two rollers 12 is fine-tuned; the docking rod 13 is used to support the bar to adjust the rolling shape.

[0040] Working principle: When the device needs to be used, the sealing ball 18 is squeezed by an external object, so that the movable plate 19 squeezes the spring 20, so that the lubricating oil passes through the oil filling groove 21 and the flow hole 17 into the flow groove 14. When the bearing 6 rotates, it also drives the ball 15 to rotate, so that the lubricating oil flows in the flow groove 14 to the short shaft 5 for lubrication, and the excess lubricating oil flows into other flow grooves 14 through the through hole 16 due to the rotation of the bearing 6, thereby avoiding lubricating oil leakage. After the sealing ball 18 is loosened, it moves due to the rebound force of the spring 20, blocks the inlet of the oil filling groove 21, and screws in the sealing cover 8 for further protection, thereby effectively preventing lubricating oil leakage and ensuring the normal operation of the rolling mill and production safety.

[0041] By rotating the bolt 28, it drives the moving block 22, and at the same time, the telescopic member 26 is rotated on the first rotating seat 25 and the second rotating seat 27 to move, so that it is separated from the slot 23 and moved to the inside of the connecting tube 4, and the turntable 11 is rotated to rotate the screw 10, so that it drives the upper mounting block 7 to move, and fine-tune the distance between the two rollers 12 to ensure the rolling accuracy. When the roller 12 needs to be disassembled, the turntable 11 is rotated to separate the screw 10 from the upper mounting block 7 and turn it out, and the block 24 is separated from the slot 23 and is no longer fixed to the support frame 2, so that the mounting block 7 can be pulled to disassemble the roller 12, thereby improving the rolling accuracy and stability, facilitating disassembly and replacement, and improving maintenance efficiency.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A continuous micro-tension rolling mill for bars, comprising a base (1), characterized in that: The left and right sides of the upper part of the base (1) are fixedly connected to support frames (2), and roller shafts (12) are arranged on the upper and lower sides of the corresponding sides of the support frame (2). Both ends of the roller shaft (12) are fixedly connected to short shafts (5), and the outside of the short shaft (5) is provided with a bearing (6). The inner side of the bearing (6) is threadedly connected to a sealing cover (8) at the front and rear sides, and a sealing ball (18) is provided at the bottom of the sealing cover (8). The bottom of the sealing ball (18) is fixedly connected to a movable plate (19), and the bottom of the movable plate (19) is fixedly connected to a spring (20). An oil filling groove (21) is provided on one side of the inner side of the bearing (6), and the sealing ball (18) is slidably connected to the inside of the oil filling groove (21). One end of the spring (20) is fixedly connected to the inner wall of the corresponding side of the oil filling groove (21), and a reflux component is provided on the corresponding side of the oil filling groove (21).

2. The continuous micro-tension rolling roller ring mill for bars according to claim 1, characterized in that: The reflux component includes a flow hole (17), the flow hole (17) is opened on a side corresponding to the oil filling groove (21), a flow groove (14) is opened on a side corresponding to the flow hole (17), the flow grooves (14) are evenly distributed and opened around the inside of the bearing (6), a through hole (16) is opened on one side of the flow groove (14), and a ball (15) is arranged inside the flow groove (14).

3. The continuous micro-tension rolling roller ring mill for bars according to claim 1, characterized in that: The bearing (6) is provided with a mounting block (7) on the outside, a fixed block (3) is fixedly connected to the rear of one side of the mounting block (7), a connecting tube (4) is fixedly connected to the inside of the fixing block (3), a bolt (28) is threadedly connected to the inner side of the connecting tube (4), one end of the bolt (28) is externally threadedly connected to the moving block (22), the upper and lower sides of the moving block (22) are fixedly connected to the first rotating seat (25), the inside of the first rotating seat (25) is rotatably connected to the telescopic member (26), one end of the telescopic member (26) is rotatably connected to the second rotating seat (27), and one side of the second rotating seat (27) is fixedly connected to the clamping block (24).

4. The continuous micro-tension rolling roller ring mill for bars according to claim 3, characterized in that: A plurality of card slots (23) are provided on one side of the interior of the support frame (2) in the upper and lower parts, and the card blocks (24) are slidably connected inside the card slots (23).

5. The continuous micro-tension rolling roller ring mill for bars according to claim 3, characterized in that: The internal thread of the support frame (2) is connected to a screw rod (10), the external thread of the screw rod (10) is connected to the upper mounting block (7), and the upper end of the screw rod (10) is fixedly connected to a turntable (11).

6. The continuous micro-tension rolling roller ring mill for bars according to claim 3, characterized in that: A mounting groove (9) is provided inside the support frame (2), and the mounting block (7) is slidably connected inside the mounting groove (9).

7. The continuous micro-tension rolling roller ring mill for bars according to claim 3, characterized in that: The clamping block (24) is slidably connected to the interior of the connecting cylinder (4).

8. The continuous micro-tension rolling roller ring mill for bars according to claim 1, characterized in that: The upper, lower, front, and rear sides of the corresponding side of the support frame (2) are fixedly connected with docking rods (13).

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