A uniform spraying device for a triple rolling mill

Abstract

A uniform spraying device for a three-row rolling mill includes a spraying machine housing, wherein five spraying chambers are arranged in the spraying machine housing, and the bottom surface of each spraying chamber is provided with a spraying hole, and a spraying head is arranged in the spraying hole, and the spraying head includes a spraying pipe and a spraying cap, and an electric control valve is arranged on the spraying pipe, and the spraying pipe is connected to a pressure plate in the spraying chamber, and a pressure sensor is arranged below the pressure plate. The spraying device controls the amount of emulsion in each spraying chamber to be the same by real-time monitoring of the pressure value by the pressure plate and the pressure sensor, and controls the spraying cap under each spraying chamber to rotate in the same direction and at the same speed by driving a motor and a crawler belt. From the two perspectives of controlling the amount of emulsion in the spraying chamber and the spraying state of the spraying cap, the uniformity of the spraying of the spraying device is ensured, the cooling effect of the spraying device is improved, the production defects caused by the inconsistent temperature of the two sides of the aluminum foil after the cooling treatment are avoided, and the production quality of the aluminum foil is improved.

Description

Technical Field

[0001] The invention relates to a spraying device, in particular to a uniform spraying device for a triple rolling mill. Background Art

[0002] During the rolling process of the three-rolling mill, the aluminum foil will generate a lot of heat, which requires the use of a sprayer to spray emulsion to cool the aluminum foil. The common sprayer currently has five spray chambers, which are the left first chamber, the left second chamber, the middle chamber, the right second chamber and the right first chamber from left to right. In order to reduce the number of emulsion tubes, the sprayer adopts the method of intra-cavity conduction to distribute the emulsion flow. The specific conduction method is as follows: connect an emulsion tube to the left first chamber, the left second chamber and the middle chamber respectively, and conduct the left first chamber and the right first chamber, and the left second chamber and the right second chamber through the conduction tube. Although this conduction method reduces the number of emulsion tubes from five to three, it is difficult to ensure the uniformity of the spraying of the two chambers on the left and the two chambers on the right. Due to the uneven spraying on the left and right sides of the sprayer, the temperature on the left and right sides of the aluminum foil after cooling treatment is inconsistent, which further causes the right side of the aluminum foil to wave, seriously affecting the production quality of the aluminum foil. Summary of the invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a uniform spraying device for a triple rolling mill.

[0004] A uniform spraying device for a three-tandem rolling mill comprises a spray casing, wherein five spray chambers supplied with liquid by an emulsion tube are arranged in the spray casing, a spray hole is opened on the bottom surface of each spray chamber, a spray head is arranged in the spray hole, the spray head comprises a spray pipe and a spray cap, an electric control valve is arranged on the spray pipe, a liquid inlet end of the spray pipe is connected to a pressure measuring plate in the spray chamber, a pressure sensor is arranged below the pressure measuring plate, a liquid outlet end of the spray pipe is connected to the spray cap below the spray hole after passing through the spray hole, a bearing is arranged between the spray cap and the spray pipe, a spray port connected to the spray pipe is arranged at the bottom of the spray cap, a driving motor is arranged on the left side of the spray casing, a driving gear is arranged at the output end of the driving motor, a mounting plate is arranged on the right side of the spray casing, a control box is arranged on the mounting plate, and the control box is connected to the electric control valve and the pressure sensor at the same time, a support rod is arranged at the bottom of the mounting plate, a driven gear is arranged on the support rod, and the driving gear, the spray cap and the driven gear are connected through a crawler.

[0005] Preferably, the five spray chambers are respectively the left first chamber, the left second chamber, the middle chamber, the right second chamber and the right first chamber from left to right, and the five spray chambers are supplied with liquid by three emulsion tubes, which are respectively connected to the left first chamber, the left second chamber and the middle chamber, the left first chamber and the right first chamber are connected by a first conducting tube, the left second chamber and the right second chamber are connected by a second conducting tube, the first conducting tube and the second conducting tube are respectively provided with a first water pump and a second water pump, and the first water pump and the second water pump are simultaneously connected to the control box.

[0006] Preferably, a sealing rubber is provided between the spray hole and the spray head.

[0007] Preferably, a buffer cavity is provided in the spray cap, the buffer cavity is connected to the spray pipe, and a plurality of evenly distributed spray ports are provided at the bottom of the buffer cavity.

[0008] Preferably, the number of spray ports on the buffer chamber is not less than 3.

[0009] Preferably, the control box and the pressure sensor are connected via an RS232 or RS485 communication serial port.

[0010] Preferably, the thickness of the spray cap is 1.1 to 1.3 times the thickness of the track.

[0011] Beneficial effects: The present invention discloses a uniform spraying device for a three-row rolling mill. The spraying device monitors the pressure value in real time through a pressure measuring plate and a pressure sensor to control the amount of emulsion in each spray chamber to be the same. At the same time, the spray cap under each spray chamber is controlled to rotate in the same direction and at the same speed through a driving motor and a crawler. From the two perspectives of controlling the amount of emulsion in the spray chamber and the spraying state of the spray cap, the uniformity of the spraying of the spraying device is ensured, the cooling effect of the spraying device is improved, the production defects caused by the inconsistent temperature of the two sides of the aluminum foil after the cooling treatment are avoided, and the production quality of the aluminum foil is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the spray device;

[0013] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the middle A area;

[0014] In the figure: 1, spray housing 2, emulsion tube 3, spray chamber 31, left first chamber 32, left second chamber 33, middle chamber 34, right second chamber 35, right first chamber 36, first conducting pipe 37, second conducting pipe 38, first water pump 39, second water pump 4, spray hole 41, sealing rubber 5, spray head 51, spray pipe 52, spray cap 53, electric control valve 54, bearing 55, spray port 56, buffer chamber 6, pressure measuring plate 61, pressure sensor 7, drive motor 71, driving gear 8, mounting plate 81, control box 82, support rod 83, driven gear 9, crawler track. DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention is further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] like Figure 1 and Figure 2 As shown, a uniform spraying device for a three-row rolling mill includes a spray casing 1, wherein the spray casing 1 is provided with five spray chambers 3 supplied with liquid by emulsion tubes 2, each spray chamber 3 is provided with a spray hole 4 on the bottom surface, and a spray head 5 is provided in the spray hole 4, wherein the spray head 5 includes a spray pipe 51 and a spray cap 52, wherein the spray pipe 51 is provided with an electric control valve 53, wherein the liquid inlet end of the spray pipe 51 is connected to a pressure measuring plate 6 in the spray chamber 3, wherein a pressure sensor 61 is provided below the pressure measuring plate 6, wherein the liquid outlet end of the spray pipe 41 passes through the spray hole 4 and is connected to the spray cap 52 below the spray hole 4, wherein a bearing 54 is provided between the spray cap 52 and the spray pipe 51, and wherein a spray port 55 connected to the spray pipe 51 is provided at the bottom of the spray cap 52.

[0017] A driving motor 7 is provided on the left side of the spray housing 1, and a driving gear 71 is provided at the output end of the driving motor 7. A mounting plate 8 is provided on the right side of the spray housing 1, and a control box 81 is provided on the mounting plate 8. The control box 81 is connected to the electric control valve 53 and the pressure sensor 61 at the same time. A support rod 82 is provided at the bottom of the mounting plate 8, and a driven gear 83 is provided on the support rod 82. The driving gear 71, the spray cap 52 and the driven gear 83 are connected by a track 9.

[0018] In this embodiment, the five spray chambers 3 are respectively the left first chamber 31, the left second chamber 32, the middle chamber 33, the right second chamber 34 and the right first chamber 35 from left to right. The five spray chambers 3 are supplied with liquid by three emulsion tubes 2, and the three emulsion tubes 2 are respectively connected to the left first chamber 31, the left second chamber 32 and the middle chamber 33. The left first chamber 31 and the right first chamber 35 are connected by a first conducting pipe 36, and the left second chamber 32 and the right second chamber 34 are connected by a second conducting pipe 37. The first conducting pipe 36 and the second conducting pipe 37 are respectively provided with a first water pump 38 and a second water pump 39, and the first water pump 38 and the second water pump 39 are connected to the control box at the same time.

[0019] In this embodiment, a sealing rubber 41 is further provided between the spray hole 4 and the spray head 5 .

[0020] In this embodiment, a buffer chamber 56 is provided in the spray cap 52 . The buffer chamber 56 is communicated with the spray pipe 51 , and a plurality of evenly distributed spray ports 55 are provided at the bottom of the buffer chamber 56 .

[0021] In this embodiment, the number of the spray ports 55 on the buffer chamber 56 is not less than 3.

[0022] In this embodiment, the control box 81 and the pressure sensor 61 are connected via an RS232 or RS485 communication serial port.

[0023] In this embodiment, the thickness of the spray cap 52 is 1.1 to 1.3 times the thickness of the track 9 .

[0024] Working conditions: Figure 1 and Figure 2 As shown, the three emulsion tubes 2 are respectively injected into the left first chamber 31, the left second chamber 32, and the middle chamber 33. During the injection process of the emulsion tubes 2, the pressure plate 6 in the spray chamber 3 feeds back the pressure value of the liquid inlet end of the spray pipe 51 to the control box 81 in real time through the pressure sensor 61. At this time, the control box 81 detects the pressure difference between the left first chamber 31 and the right first chamber 35, and between the left second chamber 32 and the right second chamber 34, and controls the first water pump 38 and the second water pump 39 to open, and the first guide tube 61 is used to inject the liquid into the spray chamber 3. The through pipe 36 and the second conducting pipe 37 transport the emulsion in the left first chamber 31 and the left second chamber 32 to the right first chamber 35 and the right second chamber 34 respectively. When the hydraulic pressure values ​​in the five spray chambers 3 are not much different, the control box 81 controls the electric control valve 53 on the spray pipe 51 to open, and the emulsion flows into the spray cap 52 along the spray pipe 51. Then, the driving motor 7 is turned on, and the driving gear 71 drives the five spray caps 52 to rotate in the same direction and at the same speed through the track 9, so that the emulsion is evenly sprayed on the surface of the aluminum foil.

[0025] The spray device monitors the pressure value in real time through the pressure measuring plate and the pressure sensor to control the emulsion amount in each spray chamber to be the same. At the same time, the spray cap under each spray chamber is controlled to rotate in the same direction and speed through the driving motor and the crawler. From the two perspectives of controlling the emulsion amount in the spray chamber and the spraying state of the spray cap, the spraying uniformity of the spray device is guaranteed, the cooling effect of the spray device is improved, the production defects caused by the inconsistent temperature of the two sides of the aluminum foil after the cooling treatment are avoided, and the production quality of the aluminum foil is improved.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A uniform spraying device for a triple rolling mill, characterized in that: The invention comprises a spray casing, wherein five spray chambers supplied with liquid by emulsion tubes are arranged in the spray casing, a spray hole is opened on the bottom surface of each spray chamber, a spray head is arranged in the spray hole, the spray head comprises a spray pipe and a spray cap, an electric control valve is arranged on the spray pipe, a liquid inlet end of the spray pipe is connected to a pressure measuring plate in the spray chamber, a pressure sensor is arranged below the pressure measuring plate, a liquid outlet end of the spray pipe is connected to a spray cap below the spray hole after passing through the spray hole, a bearing is arranged between the spray cap and the spray pipe, and a spray port connected to the spray pipe is arranged at the bottom of the spray cap; a driving motor is arranged on the left side of the spray casing, a driving gear is arranged at the output end of the driving motor, a mounting plate is arranged on the right side of the spray casing, a control box is arranged on the mounting plate, and the control box is connected to the electric control valve and the pressure sensor at the same time, a support rod is arranged at the bottom of the mounting plate, a driven gear is arranged on the support rod, and the driving gear, the spray cap and the driven gear are connected by tracks; The five spray chambers are respectively the first left chamber, the second left chamber, the middle chamber, the second right chamber and the first right chamber from left to right. The five spray chambers are supplied with liquid by three emulsion tubes, which are respectively connected to the first left chamber, the second left chamber and the middle chamber. The first left chamber and the first right chamber are connected by a first conducting tube, and the second left chamber and the second right chamber are connected by a second conducting tube. The first conducting tube and the second conducting tube are respectively provided with a first water pump and a second water pump, and the first water pump and the second water pump are simultaneously connected to the control box; A buffer cavity is arranged in the spray cap, the buffer cavity is communicated with the spray pipe, and a plurality of evenly distributed spray ports are opened at the bottom of the buffer cavity.

2. A uniform spraying device for a triple rolling mill according to claim 1, characterized in that: A sealing rubber is also arranged between the spray hole and the spray head.

3. A uniform spraying device for a triple rolling mill according to claim 1, characterized in that: The number of spray ports on the buffer chamber is no less than 3.

4. A uniform spraying device for a triple rolling mill according to claim 1, characterized in that: The control box and the pressure sensor are connected via an RS232 or RS485 communication serial port.

5. The uniform spraying device for a triple rolling mill according to claim 1, characterized in that: The thickness of the spray cap is 1.1 to 1.3 times the thickness of the track.

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