Auxiliary device for determining the optimal shearing line of strip steel and its usage method

Abstract

The present invention relates to the field of cutting machinery or devices, and specifically to an auxiliary device for determining the optimal shearing line of strip steel and its usage method. An auxiliary device for determining the optimal shearing line of strip steel, comprising a bracket (1), is characterized in that: it further includes a left blowing pipe (21), a right blowing pipe (22), a left hose (31), a right hose (32) and an air inlet main pipe (4), and the bracket (1) is trapezoidal; the left blowing pipe (21) is attached to and fixed on the left waist rod (13), the top of the left blowing pipe (21) is connected to the air inlet main pipe (4) through the left hose (31), the right blowing pipe (22) is attached to and fixed on the right waist rod (14), and the top of the right blowing pipe (22) is connected to the air inlet main pipe (4) through the right hose (32); two manual valves (41) and one solenoid valve (42) are connected in series on the air inlet main pipe (4). The present invention can completely remove fog and ensure accurate determination.

Description

Technical Field

[0001] The present invention relates to the field of cutting machinery or devices, and particularly to an auxiliary device for determining the optimal shearing line of strip steel and its using method. Background Art

[0002] Currently, the optimal shearing line of strip steel is mainly determined by HMD. However, HMD is sensitive to fog. In the case of strip steel such as silicon steel with particularly heavy fog on the surface during rolling, HMD can basically not determine, making the optimal shearing system ineffective and even affecting the normal production of the rolling line. Summary of the Invention

[0003] In order to overcome the defects of the prior art and provide an auxiliary device for shearing line determination with thorough fog removal and accurate determination, the present invention discloses an auxiliary device for determining the optimal shearing line of strip steel and its using method.

[0004] The present invention achieves the invention purpose through the following technical solutions:

[0005] An auxiliary device for determining the optimal shearing line of strip steel, including a bracket, characterized in that: it further includes a left blowing pipe, a right blowing pipe, a left hose, a right hose and an air inlet main pipe.

[0006] The bracket is trapezoidal, and the bracket includes a top rod, a bottom rod, a left waist rod, a right waist rod and a middle connecting rod. The length of the top rod is less than that of the bottom rod, the top rod and the bottom rod are arranged parallel to each other. The top end and the bottom end of the left waist rod are respectively connected to the left ends of the top rod and the bottom rod, the top end and the bottom end of the right waist rod are respectively connected to the right ends of the top rod and the bottom rod, the two ends of the middle connecting rod are respectively connected to the middle parts of the left waist rod and the middle waist rod. At least three ventilation holes are sequentially provided on both the left waist rod and the right waist rod.

[0007] The left blowing pipe is provided with left blowing holes equal in number to the ventilation holes of the left waist rod. The left blowing pipe is attached to and welded to the left waist rod, and each left blowing hole is respectively directly opposite to a ventilation hole of the left waist rod. The bottom of the left blowing pipe is blocked, and the top of the left blowing pipe is connected to the air inlet main pipe through a left hose.

[0008] The right blowing pipe is provided with right blowing holes equal in number to the ventilation holes of the right waist rod. The right blowing pipe is attached to and welded to the right waist rod, and each right blowing hole is respectively directly opposite to a ventilation hole of the right waist rod. The bottom of the right blowing pipe is blocked, and the top of the right blowing pipe is connected to the air inlet main pipe through a right hose.

[0009] Two manual valves and an electromagnetic valve are connected in series on the air inlet main pipe. The electromagnetic valve is arranged between the two manual valves. The two ends of a bypass pipe are respectively connected to the air inlet main pipe, and the manual valves and the electromagnetic valve are both arranged on the air inlet main pipe between the two connection points of the air inlet main pipe and the bypass pipe. A bypass valve is connected in series on the bypass pipe, and the air inlet end of the air inlet main pipe is connected to a gas source.

[0010] The auxiliary device for determining the optimized shearing line of strip steel is characterized in that there are at least two middle connecting rods of the bracket, and the middle connecting rods are arranged parallel to each other. The ejector rod, bottom rod, left waist rod, right waist rod and middle connecting rod are all made of angle steel.

[0011] The using method of the auxiliary device for determining the optimized shearing line of strip steel is characterized in that the following steps are sequentially implemented:

[0012] The bracket is straddled outside the optimized shearing measurement device of the strip steel rolling line. The manual valve and solenoid valve are opened, and the bypass valve is closed. When the strip steel passes through the optimized shearing measurement device during the transportation of the strip steel rolling line, compressed air is input into the air inlet main pipe by the air source. The compressed air is blown into the ventilation holes of the left waist rod through the air inlet main pipe, left hose and left blow pipe in sequence, or is blown into the ventilation holes of the right waist rod through the air inlet main pipe, right hose and right blow pipe in sequence, so that the compressed air is blown into the bracket to blow off the fog within the detection range of the optimized shearing measurement device. When the solenoid valve stops working, the bypass valve is opened, and the solenoid valve is short-circuited through the bypass pipe.

[0013] The using method of the auxiliary device for determining the optimized shearing line of strip steel is characterized in that the solenoid valve is opened for blowing when the strip steel head reaches 5 seconds to 10 seconds before the optimized shearing measurement device, and the solenoid valve is closed to stop blowing when the strip steel head passes through the optimized shearing measurement device for 5 seconds to 10 seconds; the solenoid valve is opened for blowing when the strip steel tail reaches 5 seconds to 10 seconds before the optimized shearing measurement device, and the solenoid valve is immediately closed to stop blowing when the strip steel tail passes through the optimized shearing measurement device.

[0014] The present invention has the following beneficial effects:

[0015] It can effectively remove the fog within the detection range of the HMD, which is used as the optimized shearing measurement device. The detection range is approximately 3200 mm in length × 2500 mm in width × 100 mm in thickness, enabling the HMD to detect normally and ensuring the normal operation of the optimized shearing system. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the bracket in the present invention,

[0017] Figure 2 It is a schematic diagram of the air inlet main pipe connecting the left blow pipe and the right blow pipe in the present invention. Detailed Embodiments

[0018] The present invention is further described below through specific embodiments.

[0019] Embodiment 1

[0020] An auxiliary device for determining the optimal shearing line of strip steel, comprising a bracket 1, a left blowing pipe 21, a right blowing pipe 22, a left hose 31, a right hose 32 and an air inlet main pipe 4, as Figure 1 and Figure 2 shown. The specific structure is as follows:

[0021] The bracket 1 is trapezoidal. The bracket 1 includes a top rod 11, a bottom rod 12, a left waist rod 13, a right waist rod 14 and a middle connecting rod 15. The length of the top rod 11 is less than that of the bottom rod 12. The top rod 11 and the bottom rod 12 are arranged parallel to each other. The top and bottom ends of the left waist rod 13 are respectively connected to the left ends of the top rod 11 and the bottom rod 12. The top and bottom ends of the right waist rod 14 are respectively connected to the right ends of the top rod 11 and the bottom rod 12. The two ends of the middle connecting rod 15 are respectively connected to the middle parts of the left waist rod 13 and the middle waist rod 14. At least three ventilation holes are successively arranged on both the left waist rod 13 and the right waist rod 14;

[0022] The left blowing pipe 21 is provided with left blowing holes 211 equal in number to the ventilation holes of the left waist rod 13. The left blowing pipe 21 is attached to and welded to the left waist rod 13, and each left blowing hole 211 is respectively opposite to a ventilation hole of the left waist rod 13. The bottom of the left blowing pipe 21 is blocked, and the top of the left blowing pipe 21 is connected to the air inlet main pipe 4 through the left hose 31,

[0023] The right blowing pipe 22 is provided with right blowing holes 221 equal in number to the ventilation holes of the right waist rod 14. The right blowing pipe 22 is attached to and welded to the right waist rod 14, and each right blowing hole 221 is respectively opposite to a ventilation hole of the right waist rod 14. The bottom of the right blowing pipe 22 is blocked, and the top of the right blowing pipe 22 is connected to the air inlet main pipe 4 through the right hose 32;

[0024] Two manual valves 41 and one solenoid valve 42 are connected in series on the air inlet main pipe 4. The solenoid valve 42 is arranged between the two manual valves 41. The two ends of the bypass pipe 5 are respectively connected to the air inlet main pipe 4, and both the manual valve 41 and the solenoid valve 42 are arranged on the air inlet main pipe 4 between the two connection points of the air inlet main pipe 4 and the bypass pipe 5. A bypass valve 51 is connected in series on the bypass pipe 5. The air inlet end of the air inlet main pipe 4 is connected to an air source.

[0025] In this embodiment: There are two middle connecting rods 15 of the bracket 1, and the middle connecting rods 15 are arranged parallel to each other. The top rod 11, the bottom rod 12, the left waist rod 13, the right waist rod 14 and the middle connecting rods 15 are all made of angle steel.

[0026] In this embodiment: The bracket 1 is made of stainless steel. The size of the ejector rod 11 is: outer diameter 100 mm × length 500 mm, and the size of the bottom rod 12 is: outer diameter 100 mm × length 2200 mm. The left waist rod 13, the right waist rod 14 and the middle connecting rod 15 are all made of equal-angle steel with side length 40 mm × thickness 4 mm. The height of the bracket 1 is 2800 mm. The left blowpipe 21 and the right blowpipe 22 are both made of stainless steel and are internally passed with compressed air of 0.4 Mpa to 0.7 MPa.

[0027] When this embodiment is in use, it is implemented in sequence according to the following steps:

[0028] The bracket 1 is straddled outside the optimization shear measurement device of the strip rolling line. The manual valve 41 and the solenoid valve 42 are opened, and the bypass valve 51 is closed. When the strip passes through the optimization shear measurement device during the conveying of the strip rolling line, the air source inputs compressed air into the air inlet main pipe 4. The compressed air is blown into the ventilation holes of the left waist rod 13 through the air inlet main pipe 4, the left hose 31 and the left blowpipe 21 in sequence, or is blown into the ventilation holes of the right waist rod 14 through the air inlet main pipe 4, the right hose 32 and the right blowpipe 22 in sequence, so as to blow the compressed air into the bracket 1 to blow away the mist within the detection range of the optimization shear measurement device. When the solenoid valve 42 stops working, the bypass valve 51 is opened, and the solenoid valve 42 is short-circuited through the bypass pipe 5.

[0029] To save electricity, this embodiment is controlled by the controller of the strip rolling line (such as a programmable controller). When the head of the strip reaches 5 seconds to 10 seconds before the optimization shear measurement device, the solenoid valve 42 is opened for blowing. When the head of the strip passes through the optimization shear measurement device, the solenoid valve 42 is closed after 5 seconds to 10 seconds to stop blowing. When the tail of the strip reaches 5 seconds to 10 seconds before the optimization shear measurement device, the solenoid valve 42 is opened for blowing. When the tail of the strip passes through the optimization shear measurement device, the solenoid valve 42 is immediately closed to stop blowing.

Claims

1. An auxiliary device for determining the optimal shearing line of strip steel, comprising a bracket (1), characterized in that: It also includes a left blowing pipe (21), a right blowing pipe (22), a left hose (31), a right hose (32) and an air inlet main pipe (4). The bracket (1) is trapezoidal. The bracket (1) includes a top rod (11), a bottom rod (12), a left waist rod (13), a right waist rod (14) and a middle connecting rod (15). The length of the top rod (11) is less than that of the bottom rod (12). The top rod (11) and the bottom rod (12) are arranged parallel to each other. The top end and the bottom end of the left waist rod (13) are respectively connected to the left ends of the top rod (11) and the bottom rod (12). The top end and the bottom end of the right waist rod (14) are respectively connected to the right ends of the top rod (11) and the bottom rod (12). The two ends of the middle connecting rod (15) are respectively connected to the middle parts of the left waist rod (13) and the middle waist rod (14). At least three ventilation holes are successively arranged on both the left waist rod (13) and the right waist rod (14). The left blowing pipe (21) is provided with left blowing holes (211) equal in number to the ventilation holes of the left waist rod (13). The left blowing pipe (21) is attached to and fixed on the left waist rod (13), and each left blowing hole (211) is respectively directly opposite to a ventilation hole of the left waist rod (13). The bottom of the left blowing pipe (21) is blocked, and the top of the left blowing pipe (21) is connected to the air inlet main pipe (4) through the left hose (31). The right blowing pipe (22) is provided with right blowing holes (221) equal in number to the ventilation holes of the right waist rod (14). The right blowing pipe (22) is attached to and fixed on the right waist rod (14), and each right blowing hole (221) is respectively directly opposite to a ventilation hole of the right waist rod (14). The bottom of the right blowing pipe (22) is blocked, and the top of the right blowing pipe (22) is connected to the air inlet main pipe (4) through the right hose (32). Two manual valves (41) and an electromagnetic valve (42) are connected in series on the air inlet main pipe (4). The electromagnetic valve (42) is arranged between the two manual valves (41). The two ends of the bypass pipe (5) are respectively connected to the air inlet main pipe (4), and both the manual valve (41) and the electromagnetic valve (42) are arranged on the air inlet main pipe (4) between the two connection points of the air inlet main pipe (4) and the bypass pipe (5). A bypass valve (51) is connected in series on the bypass pipe (5). The air inlet end of the air inlet main pipe (4) is connected to an air source.

2. The auxiliary device for determining the optimal shearing line of strip steel according to claim 1, characterized in that: There are at least two middle connecting rods (15) of the bracket (1), and the middle connecting rods (15) are arranged parallel to each other. The top rod (11), the bottom rod (12), the left waist rod (13), the right waist rod (14) and the middle connecting rod (15) are all made of angle steel.

3. The method for using the auxiliary device for determining the optimal shearing line of strip steel as claimed in claim 1 or 2, characterized in that: It is implemented successively according to the following steps: Place the bracket (1) across the outside of the optimization shearing measurement device of the strip rolling line. Open the manual valve (41) and the solenoid valve (42), and close the bypass valve (51). When the strip passes through the optimization shearing measurement device during the conveyance on the strip rolling line, the air source inputs compressed air into the air inlet main pipe (4). The compressed air is blown into the ventilation holes of the left waist rod (13) through the air inlet main pipe (4), the left hose (31) and the left blow pipe (21) in sequence, or is blown into the ventilation holes of the right waist rod (14) through the air inlet main pipe (4), the right hose (32) and the right blow pipe (22) in sequence, so as to blow the compressed air into the bracket (1) to blow off the mist within the detection range of the optimization shearing measurement device. When the solenoid valve (42) stops working, open the bypass valve (51) to short-circuit the solenoid valve (42) through the bypass pipe (5).

4. The usage method of the auxiliary device for determining the optimal shearing line of strip steel according to claim 3, characterized in that: Open the solenoid valve (42) to blow air when the strip head reaches 5 seconds to 10 seconds before the optimization shearing measurement device, and close the solenoid valve (42) to stop blowing air when the strip head passes through the optimization shearing measurement device for 5 seconds to 10 seconds; open the solenoid valve (42) to blow air when the strip tail reaches 5 seconds to 10 seconds before the optimization shearing measurement device, and immediately close the solenoid valve (42) to stop blowing air when the strip tail passes through the optimization shearing measurement device.

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