Guiding and guarding device capable of achieving rapid alignment and rolling mill

Abstract

The utility model relates to the technical field of steel rolling, in particular to a fast alignment guide and guard device and a rolling mill, the guide and guard device comprises a cross beam base, a guide and guard box base and a plurality of guide and guard boxes, the top surface of the guide and guard box base is provided with a first key groove which is through left and right, the bottom surface of each guide and guard box is provided with a first key block, and the guide and guard boxes can horizontally and transversely move on the guide and guard box base. The guide and guard box base is further provided with a first fixing bolt used for fixing the position of the first key block, a guide and guard plate is arranged in the guide and guard box, and the guide and guard box base is detachably fixed to the cross beam base. By arranging the guide and guard box base and the guide and guard boxes which can horizontally and transversely move on the guide and guard box base and are parallel to each other, the number of the guide and guard boxes can be set according to the cutting requirement of rod and wire products in the using process, the distance between the guide and guard boxes is anchored through the fixing bolts so as to meet the rolling requirement, and when new rolling holes need to be replaced, the guide and guard boxes can be replaced. Due to the fact that the relative positions of the guide and guard box and the guide and guard box base are fixed, alignment of all the guide and guard boxes can be achieved only by aligning one guide and guard box.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling, in particular to a fast-aligning guide device and a rolling mill. Background Art

[0002] The short stress line mill is used for multi-stand continuous rolling of long profiles such as bars and wires. At present, most bar and wire products are produced by slitting and rolling processes, including two-slit, three-slit, four-slit, five-slit, six-slit, etc. (the following takes 16-slit as an example, and other multi-line slits are the same). The billet is rolled into qualified rolled pieces through rough rolling and intermediate rolling. Then it enters the flat roll-flat roll-box type-preset division-slit-flat ellipse-finished round hole type for rolling in sequence. The rolled piece entering the 16-slit slitting pass is a rolled piece, and three small rolled pieces divided from one rolled piece are rolled out simultaneously from the 16-slit slitting pass. The three rolled pieces rolled out at the same time enter the three rolling holes on the flat ellipse hole type roller at the same time through the exit guide of the slitting pass and the inlet guide of the flat ellipse hole type roller. The rolled piece rolled out from the flat ellipse pass passes through the exit guide of the flat ellipse hole type. The finished round hole type import guide guard enters the finished round hole type for rolling, and three 16-specification threaded steel products are rolled out of the finished round hole type. Since there is an installation spacing between adjacent rolling mills, in order to ensure that the rolled piece can accurately enter the rolling hole of the next rolling mill, and to provide good guidance and protection for the rolled piece during the process of being introduced into the rolling hole of the next rolling mill, guide guards are usually installed before and after the rolling hole of the rolling roller to help the rolled piece to accurately and stably guide out of the rolling hole of the previous rolling mill in the established direction and state during the rolling process, and at the same time be introduced into the rolling hole of the next rolling mill.

[0003] During the rolling process, due to the wear of the roll surface, it is often necessary to replace the rolling holes with new ones, and the position of the rolling center line needs to be kept unchanged during the replacement. The flat elliptical hole type and the finished round hole type roller inlet and outlet guides each require three to ensure that the three rolled pieces after cutting can accurately enter the three rolling holes of the rolling mill, and can provide good guidance and protection for the rolled pieces during the process of being introduced into the three rolling holes of the next rolling mill.

[0004] The three inlet and outlet guides of the commonly used flat oval hole type and finished round hole type rolling mill are arranged separately. When changing the rolling hole to use a new rolling hole, the three inlet and outlet guides need to be loosened and moved to align with the new rolling hole, and then fixed separately. As a result, the operation of changing the rolling hole to use a new rolling hole is cumbersome and time-consuming. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a guide device and a rolling mill for rapid alignment. By providing a base for placing the guide box, rapid alignment can be achieved by only moving the base horizontally when replacing the rolling hole.

[0006] In order to achieve the above technical effects, the utility model adopts the following technical solutions:

[0007] A quick-alignment guide device comprises a crossbeam base, a guide box base and a plurality of guide boxes, wherein a first key slot extending leftward and rightward is provided on the top surface of the guide box base, a first key block matching the first key slot is provided on the bottom surface of the guide box, the guide box can move horizontally on the guide box base, a first fixing bolt is further provided on the guide box base, the first fixing bolt is used to fix the position of the first key block in the first key slot, a guide plate is provided in the guide box, and the guide box base is detachably fixed to the crossbeam base.

[0008] The guide device provided by the utility model, by providing a guide box base and guide boxes parallel to each other that can horizontally move on the guide box base, can set the number of guide boxes according to the cutting requirements of rod and wire products during use, and use fixing bolts to anchor the spacing between the guide boxes to match the rolling requirements. When a new rolling hole needs to be replaced, since the relative position of the guide box and the guide box base is fixed, it is only necessary to align one guide box to achieve the alignment operation of all the guide boxes.

[0009] Preferably, a second key block is provided on the bottom surface of the guide box base, a second key slot matching the second key block is opened on the top surface of the crossbeam base, and the guide box base and the crossbeam base are detachably connected via a second fixing bolt.

[0010] Further preferably, the guide device further comprises a fixed baffle, which is fixed to the crossbeam base by a second fixing bolt, and is used to press against the second key block. By providing the fixed baffle, the guide box base can be tightly fixed to the crossbeam base, and production accidents caused by the front and back shaking of the guide box base can be prevented during use.

[0011] Preferably, the first keyway is provided with a scale to facilitate the operator to determine the position of the guide box.

[0012] The utility model also provides a rolling mill using the above-mentioned fast-alignment guide device, the rolling mill comprises a slitting roller, a guide device and a crossbeam for placing the guide device.

[0013] The slitting roller is provided with a rolling groove;

[0014] The guide device includes a crossbeam base, a guide box base and a plurality of guide boxes, wherein a guide plate is arranged in the guide box, and the center line of the guide plate coincides with the center line of the rolling groove;

[0015] The guide device is detachably mounted on the cross beam through the cross beam base. The guide device can move horizontally on the cross beam. The cross beam base is provided with a third fixing bolt for fixing the position of the guide device.

[0016] Preferably, the rolling mill is provided with a screw for driving the guide device to move horizontally, and the end of the screw is connected to a driving device for driving the screw to rotate.

[0017] Further preferably, the driving device is a nut or a motor.

[0018] Beneficial effects of the utility model:

[0019] The guide device provided by the utility model is provided with a guide box base and a guide box thereon. When the guide and the guide box are adjusted, since the position of the guide box relative to the guide box base is fixed, when changing the slot, it is only necessary to align one of the guide boxes by adjusting the guide device, so that all the guide boxes can be aligned, and there is no need to remove, install and align multiple guides respectively, which greatly improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the cooperation between the guide box base and the guide box in Example 1;

[0021] Figure 2 is a schematic diagram of the positions of the guide device and the rollers in Example 2;

[0022] Figure 3 is a schematic structural diagram of a rolling mill provided in Example 2;

[0023] Among them, 1. rolling mill; 2. cutting roller; 21. upper roller; 22. lower roller; 3. rolling groove; 4. crossbeam; 5. guide box base; 6. guide box; 7. guide plate; 8. guide plate fixing bolt; 9. fixed baffle; 10. second fixing bolt; 11. crossbeam base; 12. nut; 13. third fixing bolt; 14. second keyway; 15. second key block. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Example 1

[0026] A quick alignment guide device, such as Figure 1 As shown, it includes a crossbeam base 11, a guide box base 5 and a plurality of guide boxes 6. The top surface of the guide box base 5 is provided with a first key slot that runs through the left and right sides. The bottom surface of the guide box 6 is provided with a first key block that matches the first key slot. The guide box 6 can move horizontally on the guide box base 5. The guide box base 5 is also provided with a first fixing bolt, which is used to fix the position of the first key block in the first key slot. The guide box 6 is provided with a guide plate 7. The guide box base 5 is detachably fixed to the crossbeam base 11. In this embodiment, three guide boxes are provided.

[0027] A second key block 14 is provided on the bottom surface of the guide box base 5 , and a second key slot 15 matching the second key block 14 is opened on the top surface of the beam base 11 . The guide box base 5 and the beam base 11 are detachably connected via a second fixing bolt 10 .

[0028] The guide device also includes a fixed baffle 9, which is fixed to the crossbeam base 11 by a second fixing bolt 10, and is used to press against the second key block 14. By providing the fixed baffle 9, the guide box base 5 can be tightly fixed to the crossbeam base 11, and production accidents caused by the front and back shaking of the guide box base 5 can be prevented during use.

[0029] The first keyway is provided with a scale to facilitate the operator to determine the position of the guide box, and the scale is not shown in the figure.

[0030] Example 2

[0031] A rolling mill using the fast-alignment guide device provided in Example 1, wherein the rolling mill 1 comprises a slitting roller 2, a guide device and a crossbeam 4 for placing the guide device.

[0032] The slitting roller 2 is provided with a rolling groove 3. In this embodiment, the slitting roller 2 includes an upper roller 21 and a lower roller 22;

[0033] The guide device includes a crossbeam base 11, a guide box base 5 and three guide boxes 6. A guide plate 7 is provided in the guide box 6. The center line of the guide plate 7 coincides with the center line of the rolling groove 3.

[0034] The guide device is detachably mounted on the cross beam 4 via a cross beam base 11 . The guide device can move horizontally on the cross beam 4 . A third fixing bolt 13 for fixing the position of the guide device is disposed on the cross beam base 11 .

[0035] The rolling mill is provided with a screw for driving the guide device to move horizontally, and the end of the screw is connected to a driving device for driving the screw to rotate. The driving device is a nut or a motor. In this embodiment, the driving device is a nut 12.

Claims

1. A quick alignment guide device, characterized in that: It includes a crossbeam base, a guide box base and multiple guide boxes. The top surface of the guide box base is provided with a first key slot that runs through the left and right sides. The bottom surface of the guide box is provided with a first key block that matches the first key slot. The guide box can move horizontally on the guide box base. The guide box base is also provided with a first fixing bolt, which is used to fix the position of the first key block in the first key slot. A guide plate is provided in the guide box, and the guide box base is detachably fixed to the crossbeam base.

2. The fast alignment guide device according to claim 1, characterized in that: A second key block is provided on the bottom surface of the guide box base, a second key slot matching the second key block is opened on the top surface of the crossbeam base, and the guide box base and the crossbeam base are detachably connected via a second fixing bolt.

3. The fast alignment guide device according to claim 2, characterized in that: The guide device also includes a fixed baffle, which is fixed on the beam base by a second fixing bolt, and is used to press against the second key block.

4. The fast alignment guide device according to claim 1, characterized in that: The first keyway is provided with a scale.

5. A rolling mill using the fast alignment guide device according to any one of claims 1 to 4, characterized in that: The rolling mill comprises a slitting roller, a guide device and a crossbeam for placing the guide device. The slitting roller is provided with a rolling groove; The guide device includes a crossbeam base, a guide box base and a plurality of guide boxes, wherein a guide plate is arranged in the guide box, and the center line of the guide plate coincides with the center line of the rolling groove; The guide device is detachably mounted on the cross beam through the cross beam base. The guide device can move horizontally on the cross beam. The cross beam base is provided with a third fixing bolt for fixing the position of the guide device.

6. The rolling mill according to claim 5, characterized in that The rolling mill is provided with a lead screw for driving the guide device to move horizontally, and the end of the lead screw is connected with a driving device for driving the lead screw to rotate.

7. The rolling mill according to claim 6, characterized in that The driving device is a nut or a motor.

Images