Width measuring type cold rolling mill segmented purging control device

Abstract

The utility model relates to the technical field of cold rolling mill floating oil purging, in particular to a width measurement type cold rolling mill segmented purging control device, and aims to solve the problems that when a coiled material with small width is purged, a nozzle exceeding a working area is still in an air injection state, and the surface of the coiled material is not purged due to the fact that an existing rolling oil purging device adopts a plurality of communicated air outlets to purge the surface of the coiled material. The device comprises fixing plates, rotating shafts, air guide cross rods, a blowing unit and an electromagnetic valve, the rotating shafts are arranged at the two ends of the air guide cross rods, the two air guide cross rods are rotatably installed between the two fixing plates through the rotating shafts, and the coiled material penetrates through the space between the two air guide cross rods; the two air guide cross rods are communicated with a plurality of purging units used for purging coiled materials through electromagnetic valves, and the electromagnetic valves are used for controlling connection and disconnection of the purging units and the air guide cross rods.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold rolling mill floating oil purging technical field especially relates to a kind of sectional purging control device of width measuring type cold rolling mill. BACKGROUND

[0002] Aluminum is a metal element, and it is the most abundant metal element in the earth's crust. The development of the three major industries of aviation, construction and automobile requires materials with unique properties of aluminum and its alloys. This greatly facilitates the production and application of this new metal aluminum, which is widely used. Cold rolling mill is needed in the process of aluminum material processing. Cold rolling mill is a new type of steel bar cold rolling processing equipment. Cold rolling mill is a device used for processing metal materials. Its working principle is to feed the metal material into the roller way of the rolling mill, and then the material is extruded and stretched by the rollers on the roller way, so as to change the shape and size of the material. In the process of producing aluminum coil, the rolling mill needs to spray rolling oil to cool the coil. After cooling, there will be rolling oil residue on the surface of the coil, which cannot be effectively removed, forming oil spots and seriously affecting the surface quality. Too much rolling oil will cause the thickness measurement value of the thickness gauge to fluctuate. Therefore, the control accuracy of the automatic thickness control system is affected, resulting in thickness error. It will also cause the measured speed of the speed measuring instrument to have a certain error, thereby affecting the second flow control in the rolling process and causing thickness fluctuation.

[0003] The existing method to solve the problem of rolling oil residue on the surface of the coil is to install a high-pressure purging device. The high-speed air blowing will blow off the rolling oil on the surface of the coil before winding, so as to reduce the formation of oil spots. However, the existing purging device uses multiple interconnected air outlets to purify the surface of the coil. When purifying the coil with small width, the nozzles outside the working area are still in the state of blowing air, which will cause waste of air volume. UTILITY MODEL CONTENTS

[0004] The utility model discloses a sectional purging control device of width measuring type cold rolling mill to solve the problem in the background art.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of measuring width type cold rolling mill subsection purging control device, including fixed plate, pivot, gas guide cross bar, purging unit and electromagnetic valve, the both ends of gas guide cross bar are provided with pivot, two gas guide cross bars are rotatably installed between two fixed plates by pivot, coiled material passes between two gas guide cross bars, multiple purging units for purging coiled material are communicated on two gas guide cross bars by electromagnetic valve, and electromagnetic valve is used to control the communication and disconnection of purging unit and gas guide cross bar;

[0007] Further, the purging unit includes: gas guide pipe, gas guide box and high pressure nozzle, the gas guide box is communicated with the gas guide cross bar by the gas guide pipe, the electromagnetic valve is arranged on the gas guide pipe, and the gas guide box is provided with a plurality of high pressure nozzles.

[0008] Further, the side of the gas guide box close to the coiled material is provided with a distance sensor for controlling the opening and closing of the electromagnetic valve.

[0009] Further, the high pressure nozzle is inclined to the advancing direction of the coiled material, and each high pressure nozzle is arranged on the same plane.

[0010] Further, the gas guide cross bar is provided with 7 purging units, and each gas guide box is provided with three high pressure nozzles.

[0011] Further, the outlet of the high pressure nozzle is flat.

[0012] Further, the gas guide cross bar is provided with an air inlet pipe, and the air inlet pipe is communicated with the high pressure air pump.

[0013] Further, the fixed plate is provided with two limiting rings, and the pivots on the two gas guide cross bars are rotatably connected in the corresponding limiting rings, and the limiting rings are provided with fastening bolts for fixing the pivots.

[0014] Further, the fixed plate is fixed with a driving box, the pivots on the two gas guide cross bars are rotatably connected in the driving box, the pivots of the two gas guide cross bars are fixed with worm gears, a bidirectional worm is rotatably connected in the driving box, the threads on the two sides of the bidirectional worm are respectively in transmission connection with the two worm gears, and a rotating device for driving the bidirectional worm to rotate is arranged on the driving box.

[0015] Further, the rotating device adopts a stepping motor, and the output shaft of the stepping motor is fixedly connected with the bidirectional worm.

[0016] The utility model has the following beneficial effects compared with prior art:

[0017] 1. A kind of measuring wide cold rolling mill subsection purging control device, multiple for blowing purging unit of roll material are provided on guide air cross bar, purging unit is provided with electromagnetic valve, electromagnetic valve is used to control the air jet of purging unit. Distance sensor for controlling corresponding electromagnetic valve is provided on each purging unit. When distance sensor detects that corresponding purging unit below has roll material passing, electromagnetic valve is opened, corresponding purging unit sprays high pressure gas to roll material, and the purging of roll material is completed;When distance sensor detects that corresponding purging unit below has no roll material passing, electromagnetic valve is closed, to avoid the waste of air volume. When purging roll material of different sizes, the purging unit of the same width with roll material is opened, the precision control of blowing width is realized, the whole surface of roll material is swept, and the waste of air volume is avoided.

[0018] 2, be provided with two groups of guide air cross bar and purging unit, can complete the purging of the upper and lower surfaces of roll material. Two groups of guide air cross bar are rotatably connected on fixed plate, the included angle between the air outlet direction and roll material and the distance between purging unit and roll material are realized, and the surface rolling oil residue of roll material with strong adhesion can be completed.

[0019] 3, the rotation shafts on two guide air cross bars are all engaged with bidirectional worm by worm wheel, and the bidirectional worm is rotated, so that two guide air cross bars can be rotated simultaneously, the blowing direction of two groups of purging units is adjusted simultaneously. The angle between purging unit and roll material is adjustable between 0 and 35 °. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 for the structure diagram of the whole of purging control device Figure I ;

[0021] Figure 2 for the structure diagram of the whole of purging control device Figure II ;

[0022] Figure 3 for the structure diagram of guide air cross bar and purging unit Figure I ;

[0023] Figure 4 for the structure diagram of guide air cross bar and purging unit Figure II ;

[0024] Figure 5 for the structure diagram of guide air cross bar and purging unit Figure III ;

[0025] Figure 6 for the structure diagram of purging unit Figure I ;

[0026] Figure 7 for the structure diagram of purging unit Figure II ;

[0027] Figure 8It is a structure diagram of the limiting ring;

[0028] Figure 9 It is a structure diagram of the driving box;

[0029] Figure 10 It is a structure diagram of the inside of the driving box.

[0030] In the figure: 1, fixed plate; 2, rotating shaft; 3, air guide crossbar; 4, blowing unit; 404, electromagnetic valve; 401, air guide pipe; 402, air guide box; 403, high-pressure nozzle; 405, distance sensor; 5, air inlet pipe; 601, limiting ring; 602, fastening bolt; 701, driving box; 702, worm gear; 703, bidirectional worm; 704, rotating device. DETAILED DESCRIPTION

[0031] Specific implementation one: refer to Figures 1-5 As shown in the figure, a width measuring type cold rolling mill section blowing control device, the embodiment includes fixed plate 1, rotating shaft 2, air guide crossbar 3, blowing unit 4 and electromagnetic valve 404, both ends of air guide crossbar 3 are provided with rotating shaft 2, two air guide crossbars 3 are rotatably installed between two fixed plates 1 through rotating shaft 2, coiled material passes between two air guide crossbars 3, a plurality of blowing units 4 for blowing coiled material are communicated with air guide crossbar 3 through electromagnetic valve 404 on both air guide crossbars 3, electromagnetic valve 404 is used for controlling the communication and disconnection of blowing unit 4 and air guide crossbar 3.

[0032] Further, the fixed plate 1 is provided with a bearing, and the rotating shaft 2 at both ends of the air guide crossbar 3 is rotatably connected with the rotating shaft 2 through the bearing. A plurality of blowing units 4 are installed on the air guide crossbar 3, and seven blowing units 4 are taken as an example in the device. The air guide crossbar 3 is communicated with a high-pressure gas pump, and the air guide crossbar 3 is used for distributing high-pressure gas. Seven gas outlets are arranged on the air guide crossbar 3, and the gas outlets on the air guide crossbar 3 are respectively communicated with the corresponding blowing units 4. The electromagnetic valve 404 is used for communicating the blowing unit 4 and the air guide crossbar 3, and when the electromagnetic valve 404 is opened, the corresponding blowing unit 4 sprays high-pressure gas.

[0033] Specific implementation two: refer to Figures 6-7 As shown in the figure, the blowing unit 4 of the embodiment includes: air guide pipe 401, air guide box 402 and high-pressure nozzle 403, air guide box 402 is communicated with air guide crossbar 3 through air guide pipe 401, electromagnetic valve 404 is arranged on air guide pipe 401, and a plurality of high-pressure nozzles 403 are arranged on air guide box 402.

[0034] Further, the air guide pipe 401 is used for connecting the air guide crossbar 3 and the air guide box 402, and the air guide box 402 is used for further distributing high-pressure gas, so that the three high-pressure nozzles 403 spray gas at the same time.

[0035] Specific implementation three: refer toFigure 7 As shown, the air guide box 402 of the embodiment is provided with a distance sensor 405 for controlling the opening and closing of the electromagnetic valve 404.

[0036] Further, the distance sensor 405 is used for controlling the opening and closing of the electromagnetic valve 404, and the distance sensor 405 can detect whether there is a roll passing below the blowing unit 4. When the distance sensor 405 detects that there is a roll passing below the corresponding blowing unit 4, the electromagnetic valve 404 is opened, the corresponding blowing unit 4 sprays high-pressure gas to the roll, and the blowing of the roll is completed; when the distance sensor 405 detects that there is no roll passing below the corresponding blowing unit 4, the electromagnetic valve 404 is closed to avoid waste of air volume. When blowing different sizes of rolls, the blowing unit 4 with the same width as the roll is opened to realize precise control of the blowing width, which not only completes the blowing of the whole surface of the roll, but also avoids waste of air volume.

[0037] Specific implementation method four: see Figures 4-5 As shown, the high-pressure nozzle 403 of the embodiment is inclined to the advancing direction of the roll, and each high-pressure nozzle 403 is arranged on the same plane.

[0038] Further, each high-pressure nozzle 403 is arranged on the same plane. The distance and angle between each high-pressure nozzle 403 and the roll are the same, so that the blowing effect of each part of the roll is the same.

[0039] Specific implementation method five: see Figures 4-5 As shown, the air guide cross rod 3 of the embodiment is provided with 7 blowing units 4, and each air guide box 402 is provided with three high-pressure nozzles 403.

[0040] Further, the 7 blowing units 4 divide the 21 high-pressure nozzles 403 into 7 groups, and each group of high-pressure nozzles 403 is controlled by a group of electromagnetic valves 404 and distance sensors 405, so that a group of electromagnetic valves 404 and distance sensors 405 control three high-pressure nozzles 403 to spray air at the same time.

[0041] Specific implementation method six: see Figures 6-7 As shown, the high-pressure nozzle 403 of the embodiment is provided with a flat shape at the air outlet.

[0042] Further, the flat high-pressure nozzle 403 blows flat wind flow. The high-pressure air flow blown by the plurality of high-pressure nozzles 403 forms a row of air surfaces, so that the wind speed of the air surface blown to the roll is higher and the air pressure is larger.

[0043] Specific implementation method seven: see Figures 4-5 As shown, the air guide cross rod 3 of the embodiment is provided with an air inlet pipe 5, and the air inlet pipe 5 is communicated with the high-pressure gas pump.

[0044] Specific implementation eight: see Figure 8 As shown in the figure, the fixed plate 1 of the embodiment is provided with two limiting rings 601, and the rotating shafts 2 on the two air guide cross bars 3 are respectively rotationally connected in the corresponding limiting rings 601. The limiting rings 601 are provided with fastening bolts 602 for fixing the rotating shafts 2.

[0045] Further, the fastening bolts 602 are used to fix the rotating shafts 2. When the fastening bolts 602 are tightened, the angle of the rotating shafts 2 is fixed. When the fastening bolts 602 are loosened, the rotating shafts 2 can rotate on the fixed plate 1, so as to facilitate the adjustment of the air outlet angle of the blowing units 4.

[0046] Specific implementation nine: see Figures 9-10 As shown in the figure, the fixed plate 1 of the embodiment is provided with a driving box 701, and the rotating shafts 2 on the two air guide cross bars 3 are both rotationally connected in the driving box 701. The rotating shafts 2 on the two air guide cross bars 3 are both fixed with worm gears 702, and a bidirectional worm 703 is rotationally connected in the driving box 701. The two sides of the bidirectional worm 703 are respectively in transmission connection with the two worm gears 702, and the driving box 701 is provided with a rotating device 704 for driving the bidirectional worm 703 to rotate.

[0047] Specific implementation ten: see Figures 9-10 As shown in the figure, the rotating device 704 of the embodiment adopts a stepping motor, and the output shaft of the stepping motor is fixedly connected with the bidirectional worm 703.

[0048] Further, the rotating shafts 2 pass through the driving box 701, and one end of the rotating shaft 2 in the driving box 701 is fixed with the worm gear 702. The bidirectional worm 703 is used to drive the two rotating shafts 2 to rotate in opposite directions through the worm gear 702. When the rotating device 704 drives the bidirectional worm 703 to rotate clockwise, the bidirectional worm 703 drives the upper and lower blowing units 4 to swing towards the center through the worm gear 702, so as to increase the included angle between the blowing units 4 and the coiled material. When the rotating device 704 drives the bidirectional worm 703 to rotate counterclockwise, the bidirectional worm 703 drives the upper and lower blowing units 4 to swing away from the center through the worm gear 702, so as to decrease the included angle between the blowing units 4 and the coiled material.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gauge length cold rolling mill segment blow control apparatus characterized by: The utility model provides a kind of roll material blowing device, including fixed plate (1), pivot (2), air guide crossbar (3), blowing unit (4) and electromagnetic valve (404), the both ends of air guide crossbar (3) are provided with pivot (2), two air guide crossbars (3) are rotatably installed between two fixed plates (1) by pivot (2), roll material passes between two air guide crossbars (3), and a plurality of blowing units (4) for blowing roll material are communicated with two air guide crossbars (3) by electromagnetic valve (404) on two air guide crossbars (3), and electromagnetic valve (404) is used to control the communication and disconnection of blowing unit (4) and air guide crossbar (3).

2. The gauge length cold rolling mill segment purging control apparatus of claim 1, wherein: The blowing unit (4) comprises: an air guide pipe (401), an air guide box (402), and a high-pressure nozzle (403), the air guide box (402) is communicated with the air guide crossbar (3) through the air guide pipe (401), the electromagnetic valve (404) is arranged on the air guide pipe (401), and a plurality of high-pressure nozzles (403) are arranged on the air guide box (402).

3. The gauge length cold rolling mill segment purging control apparatus of claim 2, wherein: The air guide box (402) is provided with a distance sensor (405) near one side of the roll material, which controls the opening and closing of the electromagnetic valve (404).

4. The gauge length cold rolling mill segment purging control apparatus of claim 3, wherein: The high-pressure nozzle (403) is inclined to the advancing direction of the roll material, and each high-pressure nozzle (403) is arranged on the same plane.

5. The gauge length cold rolling mill segment purging control apparatus of claim 3, wherein: Seven blowing units (4) are arranged on the air guide crossbar (3), and three high-pressure nozzles (403) are arranged on each air guide box (402).

6. The gauge length cold rolling mill segment purging control apparatus of claim 3, wherein: The air outlet of the high-pressure nozzle (403) is flat.

7. The gauge length controlled segmented blow-off device for a cold rolling mill of claim 3 wherein: An air inlet pipe (5) is arranged on the air guide crossbar (3), and the air inlet pipe (5) is communicated with a high-pressure air pump.

8. A gauge length controlled strip section blow-off arrangement for a cold rolling mill as claimed in any one of claims 1 to 7, wherein: Two limiting rings (601) are arranged on the fixed plate (1), the pivots (2) on the two air guide crossbars (3) are rotatably connected in the corresponding limiting rings (601), and the limiting rings (601) are provided with fastening bolts (602) for fixing the pivots (2).

9. A gauge length controlled strip section blow-off arrangement for a cold rolling mill as claimed in any one of claims 1 to 7, wherein: A driving box (701) is fixed on the fixed plate (1), the pivots (2) on the two air guide crossbars (3) are rotatably connected in the driving box (701), the pivots (2) on the two air guide crossbars (3) are fixed with worm gears (702), a bidirectional worm (703) is rotatably connected in the driving box (701), the two sides of the bidirectional worm (703) are threadedly connected with the two worm gears (702), and a rotating device (704) is arranged on the driving box (701) for driving the bidirectional worm (703) to rotate.

10. The gauge length cold rolling mill segment purging control apparatus of claim 9, wherein: The rotating device (704) is a stepping motor, and the output shaft of the stepping motor is fixedly connected with the bidirectional worm (703).

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