Replacing device for adjusting elevation base plate of cold rolling mill

Abstract

The utility model relates to a replacing device for a cold rolling mill elevation adjusting base plate, which comprises a connecting frame, supporting lug supporting seats, a bracket and supporting lugs, the supporting lug supporting seats are fixed at two ends of the connecting frame, the bracket is connected with the supporting lug supporting seats through a rotating shaft, and the supporting lugs are connected with the bracket; an electromagnet is fixed to the bottom of the lug supporting seat, the length and width of the electromagnet are consistent with those of the base plate, right-angle baffles are arranged at the two opposite angles of the electromagnet, and a proximity switch is installed on the bracket. Compared with the prior art, the replacing device for the elevation adjusting base plate of the cold rolling mill has the advantages that the replacing device is a technical improvement on the prior art, on the premise that two base plates can be replaced at the same time originally, the replacing speed of the base plates can be further increased, the labor intensity of workers is reduced, and the production efficiency is improved. The working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a cold rolling process, in particular to a replacement device for a cold rolling mill elevation adjustment pad. Background Art

[0002] Rolling mills all have fixed rolling line elevations. In the cold rolling production process, the rolls need to be ground repeatedly at a certain cycle. After the ground rolls are put on the machine, their diameters will change. In order to ensure that the rolling line elevation of the rolling mill remains unchanged, there is a way: steel pads of different thicknesses are placed between the bearing seat of the support rolls under the rolling mill and the base of the rolling mill to keep the rolling line elevation unchanged.

[0003] As the roller diameter changes, the elevation pad needs to be replaced and adjusted. In the past, the spiral frame was sent to the bottom of the rolling mill, and the operator rotated the screw to lift the pad for manual replacement. The operation process was unsafe, and only one pad could be taken out and installed at a time, resulting in low work efficiency and high work intensity.

[0004] The Chinese invention patent document with application number 202111653572.6 discloses a "cold rolling mill pad replacement device and method for adjusting the rolling line elevation by pads". This method connects and transports two pads at the same time through the main beam, and utilizes the existing slideway, hydraulic slide plate and hydraulic cylinder for replacing the rollers of the rolling mill equipment to achieve the simultaneous replacement of the two pads. However, it was found in actual use that during transportation, the pad of the device is connected to the fixed plate by four bolt holes. When transported to the location, the four bolts need to be unscrewed and the pad is installed in place. The installation and removal process of the bolts is also time-consuming and labor-intensive, which increases labor intensity and reduces work efficiency. In addition, during the installation of the pad, the four threaded holes need to be accurately positioned with the installation position. It is difficult to achieve accurate positioning with the hydraulic slide plate transmission, and manual adjustment is required at the workstation, which is also a factor that increases manual labor intensity and reduces work efficiency. Utility Model Content

[0005] The utility model aims to provide a replacement device for adjusting the elevation pad of a cold rolling mill, which is an improvement on the above-mentioned prior art and can increase the replacement speed of the pad, reduce manual labor intensity and improve work efficiency.

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

[0007] A device for replacing a cold rolling mill elevation adjustment pad comprises a connecting frame, a support ear support seat, a bracket, and a support ear, wherein the two ends of the connecting frame are fixed with the support ear support seats, the bracket is connected to the support ear support seat via a rotating shaft, and the support ear is connected to the bracket; an electromagnet is fixed to the bottom of the support ear support seat, the electromagnet has the same length and width as the pad, right-angle baffles are provided at two diagonals of the electromagnet, and a proximity switch is installed on the bracket.

[0008] When the bracket is rotated to a vertical state with the connecting frame, the bottom of the bracket ear is supported on a hydraulic slide, and the hydraulic slide moves on a slideway. A proximity switch sensing block is fixed on the slideway, and the setting position of the proximity switch sensing block is the pad installation position.

[0009] It also includes a hydraulic cylinder, which is arranged between the slideways.

[0010] A hook is fixed on the connecting frame.

[0011] The bracket is at the upper end of the ear support seat, the rotating shaft passes through the through hole on the bracket, and the lower part of the rotating shaft is connected with the ear support seat through a thread.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a replacement device for adjusting the elevation pad of a cold rolling mill, which is a technical improvement on the prior art. On the premise that two pads can be replaced at the same time, the replacement speed of the pads can be further improved, the labor intensity can be reduced, and the work efficiency can be improved.

[0014] The utility model utilizes an electromagnet to replace a bolt connection when transporting a pad, thereby shortening the time for disassembling and assembling the pad on a replacement device, simplifying the labor process, and further improving the efficiency.

[0015] The utility model has the electromagnet and the pad in consistent size and is limited by a right-angle baffle, and cooperates with a proximity switch to locate the pad installation position, so that the pad can be accurately transported to the installation position, and the pad can be directly installed without further manual adjustment, thereby simplifying the labor procedure and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model.

[0017] Figure 2 for Figure 1 Side view of.

[0018] Figure 3 It is a top view of the utility model.

[0019] Figure 4It is a schematic diagram of the structure of the electromagnet in the utility model.

[0020] Figure 5 This is the installation position diagram of the pad in the utility model.

[0021] In the figure: 1- slideway, 2- hydraulic slide plate, 3- support ear, 4- rotating shaft, 5- bracket, 6- support ear support seat, 7- pad, 8- electromagnet, 9- hydraulic cylinder, 10- right angle baffle, 11- hook, 12- proximity switch, 13- proximity switch sensing block, 14- connecting frame. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is further described below in conjunction with the embodiments.

[0023] See Figure 3 A device for replacing a cold rolling mill elevation adjustment pad includes a connecting frame 14, a support ear support seat 6, a bracket 5, and a support ear 3. The support ear support seats 6 are fixed at both ends of the connecting frame 14. The bracket 5 is connected to the support ear support seat 6 through a rotating shaft 4, and the support ear 3 is connected to the bracket 5; an electromagnet 8 is fixed to the bottom of the support ear support seat 6, and the length and width of the electromagnet 8 are consistent with those of the pad 7. Two diagonal plates 10 are provided with right-angle baffles, and a proximity switch 12 is installed on the bracket 5.

[0024] The distance between the electromagnets 8 at both ends of the connecting frame 14 is consistent with the distance between the driving side pad and the operating side pad of the rolling mill, so that the two pads 7 can be transported and replaced at the same time. There are two pairs of brackets 5 and ears 3, and each pair of brackets 5 and ears 3 is symmetrically arranged on both sides of the connecting frame 14.

[0025] When the bracket 5 rotates to a vertical position with the connecting frame 14, the bottom of the ear 3 is supported on the hydraulic slide 2, and the hydraulic slide 2 moves on the slide 1. A proximity switch sensing block 13 is fixed on the slide 1, and the proximity switch sensing block 13 is set to the installation position of the pad 7.

[0026] It also includes a hydraulic cylinder 9 which is arranged between the slideways 1 .

[0027] The hydraulic cylinder 9, the slideway 1 and the hydraulic slide plate 2 are original equipment of the rolling mill and are used for replacing the rollers.

[0028] A hook 11 is fixed on the connecting frame 14 for lifting the replacement device onto the hydraulic slide 2 .

[0029] The bracket 5 is at the upper end of the ear support seat 6, the rotating shaft 4 passes through the through hole on the bracket 5, and the lower part of the rotating shaft 4 is connected to the ear support seat 6 through a thread. The ear 3 is fixedly connected to the bracket 5 or connected through a thread, and the bottom of the ear 3 extends out of the bracket 5 for support on the hydraulic slide 2. The bracket 5 can rotate relative to the ear support seat 6 through the rotating shaft 4, and after rotating in place, it can be tightened and fixed to the ear support seat 6 through the bottom thread of the rotating shaft 4. When the bracket 5 and the connecting frame 14 are in a vertical state, they can just fall on the hydraulic slide 2. When the bracket 5 rotates to a state parallel to the connecting frame 14, it can be separated from the hydraulic slide 2 and the slideway 1, and the replacement device can be raised and lowered at will.

[0030] The method of using the utility model is as follows:

[0031] 1) The old pad is removed from the frame: the replacement device is transported to the pad position by the hydraulic slide 2, the proximity switch 12 senses the proximity switch sensing block 13, and the power supply of the hydraulic slide 2 is cut off. The electromagnet 8 is placed directly above the old pad 7, and the connecting frame 14 is lifted up by the hydraulic cylinder 9, and then the ear 3 and the bracket 5 are rotated to 90° and parallel to the slide 1, and then the connecting frame 14 is dropped by the hydraulic cylinder 9, and the electromagnet 8 falls on the old pad 7, and the old pad 7 is embedded in the right-angle baffle 10. The electromagnet 8 is energized to absorb the old pad 7 (the bolts between the old pad 7 and the frame are removed in advance), the hydraulic cylinder 9 is lifted up, and the bracket 5 is rotated so that the ear 3 is above the hydraulic slide 2, and the hydraulic cylinder 9 is dropped, and the replacement device is transported out by the hydraulic slide 2.

[0032] 2) Installation of new pad: electromagnet 8 is powered off, the replacement device is separated from the old pad 7, and the new pad 7 is placed in the positioning groove formed by the right-angle baffle 1 at the bottom of electromagnet 8. Electromagnet 8 is powered on to suck the new pad 7, and the replacement device is transported to the pad 7 installation position through the hydraulic slide 2. The proximity switch 12 senses the proximity switch sensing block 13, and the power supply of the hydraulic slide 2 is cut off. The electromagnet 8 is placed directly above the pad 7 installation position, and the hydraulic cylinder 9 lifts the connecting frame 14, and then the ear 3 and the bracket 5 are rotated to 90° and parallel to the slide 1, and then the connecting frame 14 is dropped by the hydraulic cylinder 9. The new pad 7 at the bottom of the electromagnet 8 falls on the pad 7 replacement position, the electromagnet 8 is powered off, the hydraulic cylinder 9 is lifted, and the bracket 5 is rotated so that the ear 3 is above the hydraulic slide 2, the hydraulic cylinder 9 is dropped, and the replacement device is transported out through the hydraulic slide 2, and the fixing thread of the new pad 7 is installed, and the installation is completed.

Claims

1. A replacement device for adjusting the elevation pad of a cold rolling mill, comprising a connecting frame, a support ear support seat, a bracket, and a support ear, wherein the two ends of the connecting frame are fixed with the support ear support seat, the bracket is connected to the support ear support seat through a rotating shaft, and the support ear is connected to the bracket; It is characterized in that An electromagnet is fixed at the bottom of the bracket support seat. The length and width of the electromagnet are consistent with those of the backing plate. Two diagonal plates of the electromagnet are provided. A proximity switch is installed on the bracket.

2. A device for replacing a cold rolling mill height adjustment pad according to claim 1, It is characterized in that When the bracket is rotated to a vertical state with the connecting frame, the bottom of the bracket ear is supported on a hydraulic slide, and the hydraulic slide moves on a slideway. A proximity switch sensing block is fixed on the slideway, and the setting position of the proximity switch sensing block is the pad installation position.

3. A device for replacing a cold rolling mill height adjustment pad according to claim 1, It is characterized in that It also includes a hydraulic cylinder, which is arranged between the slideways.

4. A device for replacing a cold rolling mill height adjustment pad according to claim 1, It is characterized in that A hook is fixed on the connecting frame.

5. A device for replacing a cold rolling mill height adjustment pad according to claim 1, It is characterized in that The bracket is at the upper end of the ear support seat, the rotating shaft passes through the through hole on the bracket, and the lower part of the rotating shaft is connected with the ear support seat through a thread.

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