Cold rolling mill x-ray thickness gauge protection purging device

Abstract

The utility model relates to a kind of cold-rolling mill X-ray thickness gauge protection purging device, including the bottom plate being installed in the entrance end position of cold-rolling mill and the upper frame being fixedly installed in the top of bottom plate in parallel interval, the emission head of X-ray thickness gauge is installed in the top of the upper frame, the receiving head of X-ray thickness gauge is installed in the below of the bottom plate, the bottom plate is equipped with thickness gauge measurement window, the position of the upper frame opposite this thickness gauge measurement window is through, to make the space between the receiving head and the emission head of X-ray thickness gauge be unobstructed, the upper frame and bottom plate pass through the aluminium plate to be measured between, the middle lower surface of the upper frame is equipped with several air-blowing mechanisms on aluminium material inlet side and aluminium material outlet side, to blow off rolling oil on the upper surface of aluminium plate.The utility model can realize the accurate measurement of aluminium plate thickness, and the impact of X-ray thickness gauge by upper frame or bottom plate can be blocked by broken tape, to avoid the damage of X-ray thickness gauge.

Description

Technical Field

[0001] This utility model relates to a protective blowing device for an X-ray thickness gauge in a cold rolling mill. Background Technology

[0002] The 1850 cold rolling mill is used to cold roll aluminum sheets. Since the thickness of the aluminum sheet is a key data point during the cold rolling process, the 1850 cold rolling mill is currently only equipped with a thickness gauge at the discharge end, which cannot meet the requirement of measuring the thickness on the feed side. In addition, the aluminum sheet may break during the conveying process, and the broken strip is prone to impacting the thickness gauge, thus causing damage to the thickness gauge.

[0003] For example, Chinese patent CN118635283A, "Method for Adjusting the Depth of Tensioning Rollers Based on the Thickness of the Infeed Aluminum Coil," includes an aluminum coil tensioning mechanism located on the discharge side of the aluminum coil rolling equipment. The aluminum coil tensioning mechanism includes two spaced-apart lower tensioning rollers and an upper tensioning roller located between the two lower tensioning rollers. The aluminum coil passes through the upper tensioning roller and the two lower tensioning rollers. A thickness gauge is provided at the infeed end of the aluminum coil tensioning mechanism. The upper tensioning roller is driven to rise and fall by a lifting drive mechanism. The thickness gauge and the lifting drive mechanism are electrically connected to a controller. The thickness of the aluminum coil at the infeed end is measured by the thickness gauge, and the controller uses this thickness data to control and adjust the lifting value of the lifting drive mechanism. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to propose a protective blowing device for an X-ray thickness gauge in a cold rolling mill. The protective blowing device for an X-ray thickness gauge in a cold rolling mill is reasonably designed, which is conducive to the accurate measurement of the thickness of aluminum sheet at the feed end of the cold rolling mill and to avoid damage to the thickness gauge.

[0005] This utility model is implemented using the following solution.

[0006] This utility model relates to a protective blowing device for an X-ray thickness gauge on a cold rolling mill. The device comprises a base plate installed at the inlet end of the cold rolling mill and an upper frame fixedly installed parallel to and spaced above the base plate. The emitter of the X-ray thickness gauge is installed above the upper frame, and the receiver is installed below the base plate. The base plate has a thickness gauge measurement window, and the upper frame is through this window to ensure unobstructed space between the receiver and emitter. The aluminum sheet to be measured passes between the upper frame and the base plate. Several blowing mechanisms are located on the lower surface of the upper frame at the aluminum feed and discharge sides to blow away rolling oil from the surface of the aluminum sheet.

[0007] Preferably, the upper frame includes two parallel horizontal tubes spaced apart and multiple vertical tubes fixed between the two horizontal tubes. The thickness gauge measuring window faces the space between the two vertical tubes. The vertical tubes and horizontal tubes are interconnected, and high-pressure air is connected to the end of one of the horizontal tubes.

[0008] Preferably, the four corners of the base plate are provided with vertically arranged support columns, and the upper ends of the support columns are fixedly connected to the lower surface of the horizontal tube.

[0009] Preferably, the above-mentioned blower is a multi-head blower or a slit-type air knife.

[0010] Preferably, a set of multi-head blowing heads is provided on the lower surface of the middle part of the upper frame on the aluminum material feeding side.

[0011] Preferably, a set of multi-head blowing heads and slit-type air knives symmetrically arranged on both sides of the multi-head blowing heads are provided on the lower surface of the middle part of the upper frame on the aluminum material discharge side.

[0012] Preferably, the thickness gauge's measuring window is a circular opening.

[0013] The working principle of the protective blowing device for the X-ray thickness gauge of the cold rolling mill is as follows: During operation, the aluminum sheet passes through the space between the upper frame and the bottom plate. During this process, the blowing fan removes the rolling oil from the surface of the aluminum sheet. Simultaneously, the X-ray thickness gauge, positioned directly opposite the measuring window of the thickness gauge, measures the aluminum sheet with the rolling oil removed. This prevents the accumulation of rolling oil on the surface of the aluminum sheet from affecting the accuracy of the thickness measurement, thus achieving precise measurement of the aluminum sheet thickness. Furthermore, since the X-ray thickness gauge's emitting head is installed above the upper frame and the receiving head is installed below the bottom plate, in the event of an accidental breakage of the aluminum sheet, the upper frame or bottom plate can block the impact of the broken sheet on the X-ray thickness gauge, preventing damage to the X-ray thickness gauge. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 yes Figure 1 Top view;

[0017] Figure 3 This is a front view structural diagram of the utility model in use. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] This utility model relates to a protective blowing device for an X-ray thickness gauge on a cold rolling mill. It includes a base plate 1 installed at the inlet of the cold rolling mill and an upper frame 2 fixedly installed parallel to and spaced above the base plate 1. The emitter 31 of the X-ray thickness gauge 3 is installed above the upper frame, and the receiver 32 of the X-ray thickness gauge is installed below the base plate 1. The base plate 1 has a thickness gauge measuring window 4 (the thickness gauge measuring window can be a circular or rectangular opening, etc.). The upper frame 2 is open to the thickness gauge measuring window, ensuring unobstructed space between the receiver and emitter of the X-ray thickness gauge. The aluminum sheet 5 to be measured passes between the upper frame and the base plate. Several blowing mechanisms 6 are provided on the lower surface of the middle part of the upper frame, on the aluminum feed side and the aluminum discharge side, to blow away the rolling oil on the surface of the aluminum sheet being measured.

[0020] In order to provide high-pressure air to the blower mechanism 6 and to ensure that the position directly opposite the thickness gauge measuring window is open, the upper frame 2 includes two parallel horizontal pipes 21 and multiple vertical pipes 22 fixed between the two horizontal pipes. The thickness gauge measuring window is directly opposite the two vertical pipes so that the position of the upper frame 2 directly opposite the thickness gauge measuring window is open. The vertical pipes and horizontal pipes are interconnected (the vertical pipes and horizontal pipes form a ladder shape as shown in the figure, and the connection between the vertical pipes and horizontal pipes is closed to avoid air leakage). High-pressure air is introduced into the end of one horizontal pipe. During operation, high-pressure air is input from the end of one horizontal pipe (the other ends of the horizontal pipe are closed) and blown out from the blower mechanism 6 to remove the rolling oil on the surface of the aluminum plate.

[0021] To ensure a stable and reliable connection, vertical support columns 7 are provided at the four corners of the base plate. The upper ends of the support columns are fixedly connected to the lower surface of the horizontal tube, and the upper ends of the support columns can be fixedly connected to the lower surface of the horizontal tube by welding.

[0022] The blower mechanism can be a multi-head blower or a slit-type air knife. A set of multi-head blowers is provided on the lower surface of the middle part of the upper frame on the aluminum material feeding side. A set of multi-head blowers and slit-type air knives symmetrically arranged on both sides of the multi-head blowers are provided on the lower surface of the middle part of the upper frame on the aluminum material discharging side.

[0023] The working principle of the protective blowing device for the X-ray thickness gauge of the cold rolling mill is as follows: During operation, the aluminum sheet passes through the space between the upper frame and the bottom plate. During this process, the blowing fan removes the rolling oil from the surface of the aluminum sheet. Simultaneously, the X-ray thickness gauge, positioned directly opposite the measuring window of the thickness gauge, measures the aluminum sheet with the rolling oil removed. This prevents the accumulation of rolling oil on the surface of the aluminum sheet from affecting the accuracy of the thickness measurement, thus achieving precise measurement of the aluminum sheet thickness. Furthermore, since the X-ray thickness gauge's emitting head is installed above the upper frame and the receiving head is installed below the bottom plate, in the event of an accidental breakage of the aluminum sheet, the upper frame or bottom plate can block the impact of the broken sheet on the X-ray thickness gauge, preventing damage to the X-ray thickness gauge.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A protective purging device for an X-ray thickness gauge in a cold rolling mill, characterized in that: The system includes a base plate installed at the inlet of the cold rolling mill and an upper frame fixedly installed above the base plate at parallel intervals. The emitter of the X-ray thickness gauge is installed above the upper frame, and the receiver of the X-ray thickness gauge is installed below the base plate. The base plate has a thickness gauge measuring window, and the upper frame is through the measuring window to ensure unobstructed space between the receiver and emitter of the X-ray thickness gauge. The aluminum sheet to be measured passes through the upper frame and the base plate. Several blower mechanisms are provided on the lower surface of the middle part of the upper frame on the aluminum feed side and the aluminum discharge side to blow away the rolling oil on the surface of the aluminum sheet to be measured.

2. The protective purging device for the X-ray thickness gauge of a cold rolling mill according to claim 1, characterized in that: The upper frame includes two parallel horizontal tubes spaced apart and multiple vertical tubes fixed between the two horizontal tubes. The thickness gauge measuring window faces the space between the two vertical tubes. The vertical tubes and horizontal tubes are interconnected, and high-pressure air is connected to the end of one of the horizontal tubes.

3. The protective purging device for the X-ray thickness gauge of a cold rolling mill according to claim 2, characterized in that: The base plate has vertically arranged support columns at its four corners, and the upper ends of the support columns are fixedly connected to the lower surface of the horizontal tube.

4. The protective purging device for the X-ray thickness gauge of a cold rolling mill according to claim 1, characterized in that: The blower mechanism is a multi-head blower or a slit-type air knife.

5. The protective blowing device for the X-ray thickness gauge of the cold rolling mill according to claim 4, wherein a set of multi-head blowing heads is provided on the lower surface of the middle part of the upper frame on the aluminum material feeding side.

6. The protective blowing device for the X-ray thickness gauge of the cold rolling mill according to claim 4, wherein a set of multi-head blowing heads and slit-type air knives symmetrically arranged on both sides of the multi-head blowing heads are provided on the lower surface of the middle part of the upper frame on the aluminum material discharge side.

7. The protective purging device for the X-ray thickness gauge of the cold rolling mill according to claim 1, wherein the measuring window of the thickness gauge is a circular opening.

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