阅读说明：本技术 一种冷床承接棒材的方法 (Method for receiving bar material by cooling bed ) 是由 刘爱涛 陈凯鹏 赵磊 林永强 王才仁 张弘 肖方锦 查安鸿 车彦婷 孙鼎 于 2021-01-15 设计创作，主要内容包括：本申请提供一种冷床承接棒材的方法,属于棒材加工技术领域。棒材在制动裙板从中位向低位运动过程中被制动裙板承接,并在制动裙板从中位向高位运动过程中被抛至冷床制动板上。当预设长度的棒材运动到制动裙板后,制动裙板依次运动到低位、中位和高位,且制动裙板不在中位停留。当少于预设长度的棒材运动到制动裙板上后,制动裙板依次运动到低位和中位,并在中位停留,完成停留后的制动裙板运动到高位。少于预设长度的棒材在被制动裙板承接后,在中位停留一段时间,使其在制动裙板上有足够的滑行时间,当动齿运动到预设位置后,再完成抛钢动作,避免冷床制动板因其停留的尾钢或其他较短的棒材影响下一个钢坯轧制完成的棒材不能上冷床而造成的乱钢。(The application provides a method for receiving a bar by a cooling bed, belonging to the technical field of bar processing. The bar is received by the brake apron in the process that the brake apron moves from the middle position to the low position and is thrown onto the cold bed brake plate in the process that the brake apron moves from the middle position to the high position. When the bar with the preset length moves to the braking apron board, the braking apron board moves to a low position, a middle position and a high position in sequence, and the braking apron board does not stay at the middle position. When the bar material with the length less than the preset length moves onto the braking skirting board, the braking skirting board moves to a low position and a middle position in sequence and stays in the middle position, and the braking skirting board after staying moves to a high position. After being received by the braking apron board, the bar with the length less than the preset length stays in the middle position for a period of time, so that the bar has enough sliding time on the braking apron board, and after the movable teeth move to the preset position, the steel throwing action is completed, and the steel disorder caused by the fact that the bar rolled by the next steel billet cannot go to the cooling bed due to the influence of the tail steel or other short bars staying on the cooling bed braking plate is avoided.)

1. A method for receiving a bar material by a cooling bed, wherein the cooling bed has a first preset direction, the cooling bed comprises a brake apron plate, a cooling bed brake plate and a cooling bed straightening plate which are sequentially arranged along the first preset direction, the bar material of an output roller way is thrown to the cooling bed brake plate through the brake apron plate and enters the cooling bed straightening plate from the cooling bed brake plate, the brake apron plate can reciprocate up and down, and the brake apron plate has three states of a high position, a middle position and a low position in the process of reciprocating up and down, and the method for receiving the bar material by the cooling bed comprises the following steps:

the bar is received by the brake apron plate during the movement of the brake apron plate from the middle position to the low position and is thrown onto the cold bed brake plate during the movement of the brake apron plate from the middle position to the high position;

when a bar with a preset length moves to the braking apron board, the braking apron board moves to the low position, the middle position and the high position in sequence, and the braking apron board does not stay at the middle position;

when the bar material with the length less than the preset length moves to the braking skirting board, the braking skirting board moves to the low position and the middle position in sequence and stays at the middle position, and the braking skirting board after staying moves to the high position.

2. The method of claim 1, wherein the braking skirt plate stays at the center position for 0 to 2000ms after less than a predetermined length of the bar is moved onto the braking skirt plate.

3. The method of claim 2, wherein the braking skirt stays at the center position for 0 to 1400ms when the length of the rod is 80 to 100% of the preset length;

when the length of the bar is 50-80% of the preset length, the brake apron board stays at the middle position for 1400-1600 ms;

when the length of the bar is 20-50% of the preset length, the brake apron board stays in the middle position for 1600-2000 ms.

4. The method of claim 1, wherein when the braking skirt is in the high position or the medium position, a side of the braking skirt facing the run-out table is higher than a supporting surface of the run-out table, and when the braking skirt is in the low position, a side of the braking skirt facing the run-out table is lower than the supporting surface of the run-out table.

5. The method of any one of claims 1 to 4, wherein the support surface of the brake apron is inclined at least in the raised position, and at least in the raised position, the side of the brake apron facing the run-out table is higher than the side facing the cold bed brake plate, so that the brake apron pushes the bar upward and toward the cold bed brake plate.

6. The method for receiving the rod material by the cooling bed according to any one of claims 1 to 4, wherein a support surface of the cooling bed brake plate is arranged obliquely, the support surface of the cooling bed brake plate is higher on the side facing the brake apron than on the side facing the cooling bed straightening plate, and after the rod material is thrown to the cooling bed brake plate, the rod material moves to the side of the support surface of the cooling bed brake plate facing the cooling bed straightening plate.

7. A method for receiving a rod material by a cooling bed according to any one of claims 1 to 4, wherein the cooling bed has a second predetermined direction perpendicular to the first predetermined direction, the cooling bed braking plate is provided with a deceleration base plate, and the deceleration base plate is driven to rub the rod material when the velocity of the rod material on the cooling bed braking plate in the second predetermined direction is greater than or equal to 16.4 m/s.

8. The method for receiving the bar by the cooling bed according to any one of claims 1 to 4, wherein the cooling bed has a second preset direction perpendicular to the first preset direction, the cooling bed straightening plate comprises a plurality of slotted plates and a plurality of moving teeth which are arranged at intervals along the second preset direction, one side of the slotted plate close to the cooling bed braking plate is higher than the cooling bed braking plate, and the bar is blocked by the slotted plate after moving one side of the cooling bed braking plate close to the slotted plate, so that the speed of the bar in the first preset direction is reduced to zero.

9. The method of claim 8, wherein the moving teeth are capable of up and down eccentric motion, the moving teeth having a first position below the support surface of the spline plate and the support surface of the cooling plate and a second position above the support surface of the spline plate in up and down eccentric motion, the moving teeth moving up from the first position to the second position after the bar moves the cooling plate closer to one side of the spline plate and receiving the bar on the cooling plate during motion so that the bar reaches the upper side of the spline plate, the moving teeth continuing to move down from the second position to the first position, the bar on the moving teeth being received by the spline plate.

10. The method of claim 9, wherein the grooved plate has a plurality of fixed grooves, each bar being positioned in the plurality of fixed grooves along the second predetermined direction, a plurality of bars being positioned in the plurality of fixed grooves in sequence along the first predetermined direction and receiving at most one bar in each of the fixed grooves, the moving tooth receiving a bar on a fixed groove and reaching the top side of the next fixed groove during the movement from the first position to the second position, the moving tooth continuing to move downward from the second position and in a direction opposite to the first predetermined direction to the first position, the moving tooth being received by the next fixed groove.

Technical Field

The application relates to the technical field of bar processing, in particular to a method for receiving bars by a cooling bed.

Background

The cooling bed is an important device for cooling and conveying rolled pieces on a steel rolling production line, and the apron plate of the cooling bed is a key device for conveying rolled bars to the cooling bed from a rolling line delivery roller way. The braking apron board is a board which is positioned on one side of the run-out roller way and can move up and down in the vertical direction, the steel is braked by using the friction resistance between the board and the steel, and the steel is sent into the cooling bed straightening board by lifting movement.

The brake skirt is driven by a plurality of hydraulic cylinders. The hydraulic cylinder pushes the crank connecting rod to rotate the long shaft to drive the brake apron board to lift, and the lifting, the falling and the middle stopping position of the brake apron board can be accurately controlled through the hydraulic control loop. And the transmission long shaft is provided with a proximity switch for detecting the high position and the low position of the apron board.

The braking distance is different because the rolling speed of different specifications of products is different. The front brake section of the cooling bed is provided with a plurality of hydraulic clutches, and when the brake distance needs to be changed, the brake length of the brake apron board can be changed only by adjusting the clutch positions of the hydraulic clutches according to calculation.

In the bar rolling process, the braking apron board of the apron board is divided into three action processes of low position, middle position and high position, and the original action process is divided into two. The first is to complete a motion cycle process by directly returning to the high position of the initial position after the high position of the initial position is changed to the low position, and the motion is finishedAfter the finished steel in the process slides to the apron board at a high speed, braking the apron board to move from a high position to a low position, and then returning to a high position initial position from the low position, please refer to a timing chart 1 of the moving process; the second is that an action cycle process is completed from the high position to the low position of the initial position, then to the middle position, and finally to the high position of the initial position, in the action process, after the finished steel slides to the apron board at a high speed, the braking apron board stays for a certain time t from the high position to the low position, then to the middle position₀(within 1 s) and then returns from the middle position to the high initial position, please refer to the timing chart 2 of the operation process.

The difference between the above two motion cycles is that the first motion cycle has no median dwell time, and the second motion cycle needs to stay in the median dwell time t₀。

At present, many bar production lines in China continuously upgrade and reform rolling line equipment, but because the capacity expansion engineering quantity of a cooling bed is huge, capacity expansion and reformation are rarely carried out on the cooling bed synchronously, and under the condition, the defects of the two apron board control methods are highlighted. The second action cycle process needs to stay in the middle position for a period of time, which greatly restricts the speed increasing requirement of the rolling line, so the first action process is selected.

Because of the deviation of the weight of the steel billet, the actual length of the rolled finished bar has great deviation under the fixed process condition, and the last bar (hereinafter referred to as tail steel) is often short and commonly referred to as short tail after the bar is sheared according to the fixed length. When the tail steel is shorter (15m to 36m), the tail steel is conveyed faster on a roll line output roller way and can reach the position of the brake apron board more quickly. After the photoelectric detection tube detects that the tail steel passes through the binding output roller way, a signal is sent to the controller, the controller controls the braking apron board to lift in advance, the movement of the braking apron board is matched with the arrival time of the tail steel, and the braking apron board is enabled to bear the tail steel. However, the bar is thrown out when the sliding time of the braking apron board is short, the moving teeth on the cooling bed still keep the moving period of the bar with a fixed length, namely the bar stays on the inlet of the cooling bed and does not go to the cooling bed or the teeth are collided to cause steel disorder of the cooling bed, when the bar which is rolled by the next billet arrives, the apron board cannot throw out the bar which just arrives due to the blocking of the bar which stays in the front, the steel disorder of the cooling bed is aggravated, the rolling time is reduced, and the operation rate and the yield are reduced.

Disclosure of Invention

The application provides a method for receiving bars on a cooling bed, which can give enough sliding time to tail steel or other shorter bars on a braking apron board, so that the tail steel or other shorter bars can finish steel throwing at a specified position in a specified time, and steel disorder is avoided.

The embodiment of the application is realized as follows:

in a first aspect, the present application provides a method for receiving a bar material by a cooling bed, the cooling bed has a first preset direction, the cooling bed includes a braking skirt board, a cooling bed braking plate and a cooling bed straightening plate, which are sequentially arranged along the first preset direction, the bar material of a run-out table is thrown to the cooling bed braking plate through the braking skirt board and enters the cooling bed straightening plate from the cooling bed braking plate, the braking skirt board can reciprocate up and down, the braking skirt board has three states of a high position, a middle position and a low position during the reciprocating motion, and the method for receiving the bar material by the cooling bed includes:

the bar is received by the brake apron in the process that the brake apron moves from the middle position to the low position and is thrown onto the cold bed brake plate in the process that the brake apron moves from the middle position to the high position.

When the bar with the preset length moves to the braking skirting board, the braking skirting board moves to a low position, a middle position and a high position in sequence, and the braking skirting board does not stay in the middle position.

When the bar material with the length less than the preset length moves onto the braking skirting board, the braking skirting board moves to a low position and a middle position in sequence and stays in the middle position, and the braking skirting board after staying moves to a high position.

In the technical scheme, the method for receiving the bars by the cooling bed enables the bars with the length less than the preset length, including tail steel and other short bars, to stay in the middle position for a period of time after being received by the braking apron plate, so that the bars with the length less than the preset length have enough sliding time on the braking apron plate, and when the movable teeth move to the preset position, the steel throwing action is completed, and the steel disorder caused by the fact that the bars rolled by the next steel billet cannot go to the cooling bed due to the influence of the tail steel or other short bars staying on the braking plate of the cooling bed is avoided.

In a first possible example of the first aspect of the present application, in combination with the first aspect, the braking skirt stays in the neutral position for 0 to 2000ms after less than a predetermined length of the bar moves onto the braking skirt.

In a second possible example of the first aspect of the present application in combination with the first aspect, the braking skirt stays in the neutral position for 0 to 1400ms when the length of the rod is 80 to 100% of the preset length.

When the length of the bar is 50-80% of the preset length, the brake apron board stays at the middle position for 1400-1600 ms.

When the length of the bar is 20-50% of the preset length, the brake apron board stays in the middle position for 1600-2000 ms.

With reference to the first aspect, in a third possible example of the first aspect of the present application, when the braking apron is in the high or intermediate position, the side of the braking apron facing the run-out table is higher than the support surface of the run-out table, and when the braking apron is in the low position, the side of the braking apron facing the run-out table is lower than the support surface of the run-out table.

In the above example, after the bar material with less than the preset length moves onto the braking apron board, the braking apron board stays in the neutral position for a period of time, if the bar material rolled by the next billet has moved from the run-out table to one side of the braking apron board at this time, because the side of the supporting surface of the braking apron board in the neutral position facing the run-out table is still higher than the supporting surface of the run-out table, the braking apron board can also block the bar material rolled by the next billet, and prevent the bar material from moving onto the braking apron board to cause steel disorder.

In a fourth possible example of the first aspect of the present application in combination with the first aspect, the support surface of the brake apron is inclined at least in the raised position, and at least in the raised position the side of the brake apron facing the run-out table is higher than the side facing the cold bed brake plate, so that the brake apron pushes the bars upwards and towards the cold bed brake plate.

In the above example, the support surface of the brake skirt plate is arranged obliquely in the high position so that the brake skirt plate can give the bar a lateral pushing force, and the bar can be thrown to the cold bed brake plate.

In a fifth possible example of the first aspect of the present application in combination with the first aspect, the support surface of the cooling bed damper is disposed obliquely, the side of the cooling bed damper facing the damper apron is higher than the side of the cooling bed straightening plate, and after the rod is thrown to the cooling bed damper, the rod moves to the side of the cooling bed damper facing the cooling bed straightening plate.

In the above example, after the bar reaches the cooling bed braking plate, the bar can move to the side of the cooling bed braking plate facing to the cooling bed straightening plate due to gravity, so that the bar can be more easily lifted to the cooling bed straightening plate.

In a sixth possible example of the first aspect of the present application in combination with the first aspect, the cooling bed has a second predetermined direction perpendicular to the first predetermined direction, the cooling bed braking plate is provided with a decelerating base plate, and the decelerating base plate is driven to rub the rod material when the velocity of the rod material on the cooling bed braking plate in the second predetermined direction is greater than or equal to 16.4 m/s.

With reference to the first aspect, in a seventh possible example of the first aspect of the present application, the cooling bed has a second preset direction perpendicular to the first preset direction, the cooling bed straightening plate includes a plurality of toothed groove plates and a plurality of moving teeth arranged at intervals along the second preset direction, one side of the toothed groove plate close to the cooling bed braking plate is higher than the cooling bed braking plate, and the bar motion cooling bed braking plate is blocked by the toothed groove plate after being close to one side of the toothed groove plate, so that the speed of the bar in the first preset direction is reduced to zero.

In an eighth possible example of the first aspect of the present application in combination with the first aspect, the moving tooth is capable of up-and-down eccentric motion, the moving tooth has a first position lower than the support surface of the spline plate and the support surface of the cooling bed brake plate in the up-and-down eccentric motion, and a second position higher than the support surface of the spline plate, and after the bar moves the cooling bed brake plate to a side close to the spline plate, the moving tooth moves up to the second position, and receives the bar on the cooling bed brake plate during the motion so that the bar reaches the upper side of the spline plate, and the moving tooth continues to move down to the first position from the second position, and the bar on the moving tooth is received by the spline plate.

With reference to the first aspect, in a ninth possible example of the first aspect of the present application, the toothed rack plate has a plurality of fixing grooves, each bar is disposed in the plurality of fixing grooves along the second preset direction, the plurality of bars are sequentially disposed in the plurality of fixing grooves along the first preset direction, and each fixing groove receives at most one bar, the movable tooth receives the bar on the fixing groove and makes the bar reach an upper side of a next fixing groove in the process of moving from the first position to the second position, the movable tooth continues to move downward from the second position and in a direction opposite to the first preset direction to the first position, and the bar on the movable tooth is received by the next fixing groove.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a timing chart illustrating an operation process of a first braking skirt according to the prior art;

FIG. 2 is a timing chart illustrating an operation process of a second braking skirt according to the prior art;

FIG. 3 is a top view of a cooling bed according to an embodiment of the present application;

FIG. 4 is a side view of the cooling bed with the braking skirt in the lowered position according to the embodiment of the present application;

FIG. 5 is a side view of the cooling bed with the braking skirt in a neutral position according to an embodiment of the present disclosure;

FIG. 6 is a side view of the cooling bed with the braking skirt in the upper position according to the embodiment of the present application;

fig. 7 is a timing chart of the operation process of the braking skirt according to the embodiment of the present application.

Icon: 10-cooling bed; 11-a first preset direction; 12-a second preset direction; 100-braking skirtboard; 200-cold bed brake plate; 210-a deceleration substrate; 300-cooling bed straightening plate; 310-a fluted plate; 311-fixed slots; 320-moving teeth; 400-run out table.

Detailed Description

Embodiments of the present application will be described in detail below with reference to examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present application and should not be construed as limiting the scope of the present application. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The braking skirtboard has controller control elevating movement, and after photoelectric detection pipe detected that every rod passes through the rollgang, can signal to the controller, and then the controller makes corresponding elevating movement according to the signal control braking skirtboard that photoelectric detection pipe sent to make the smooth receipts rod of braking skirtboard. The moving teeth on the cooling bed do periodic movement. Most of bars are bars with preset lengths obtained by shearing after rolling of billets, but a plurality of bars are obtained by shearing each billet according to a fixed length after rolling, but because the weight of the billet has deviation, the actual length of the rolled finished bar has great deviation under the fixed process condition, and the last bar is often short after shearing according to the fixed length. The sliding time of tail steel or other shorter bars on the output roller way is shorter, the controller controls the brake apron board to accept the tail steel or other shorter bars in advance compared with the time of accepting bars with normal length, but the movable teeth do not reach the designated position at the moment, and if the brake apron board directly throws the tail steel or other shorter bars to the cooling bed brake plate, the movable teeth cannot timely convey the bars to the cooling bed straightening plate, so that steel disorder is caused.

The following is a detailed description of a method for receiving a bar by a cooling bed according to an embodiment of the present application:

referring to fig. 3, the cooling bed 10 has a first predetermined direction 11 and a second predetermined direction 12 perpendicular to the first predetermined direction 11. The cooling bed 10 includes a braking skirt 100, a cooling bed braking plate 200, and a cooling bed straightening plate 300, which are sequentially arranged in a first preset direction 11. The run-out table 400 is located at the left side of the brake skirt board 100, and the bar of the run-out table 400 is thrown to the cooling bed brake plate 200 through the brake skirt board 100 and enters the cooling bed straightening plate 300 from the cooling bed brake plate 200.

The braking skirt board 100 can reciprocate up and down, and the braking skirt board 100 has three states of a high position, a middle position and a low position in the process of reciprocating up and down.

Referring to fig. 4 to 6, when the bar material of the run-out table 400 moves to the left side of the braking skirt board 100, the braking skirt board 100 is in a high position state, at this time, the braking skirt board 100 moves to the middle position and the low position in sequence and receives the bar material in the moving process from the middle position to the low position, the braking skirt board 100 continues to move to the middle position and the high position in sequence from the low position and throws out the bar material in the moving process from the middle position to the high position, so that the bar material can be thrown to the cooling bed braking plate 200.

After the bar having the preset length moves to the braking skirt panel 100, the braking skirt panel 100 moves to a low position, a middle position and a high position in sequence, and the braking skirt panel 100 does not stay in the middle position.

When the bar material with the length less than the preset length moves onto the brake apron board 100, the brake apron board 100 moves to a low position and a middle position in sequence, the bar material stays in the middle position for 0-2000 ms, and the brake apron board 100 after the stay moves to the high position.

For example, after each billet is rolled and cut according to a fixed length to obtain a plurality of bars with preset lengths, the last bar is short, after the photoelectric detection tube detects tail steel, a signal is sent to the controller, the controller controls the braking apron board 100 to accept the tail steel in advance, and controls the braking apron board 100 to stay at the middle position for 0-2000 ms after accepting the tail steel, and then the tail steel is thrown out, please refer to the action process timing diagram 7.

Optionally, when the length of the bar is 80-100% of the preset length, the brake skirt board stays in the middle position for 0-1400 ms.

When the length of the bar is 50-80% of the preset length, the brake apron board stays at the middle position for 1400-1600 ms.

When the length of the bar is 20-50% of the preset length, the brake apron board stays in the middle position for 1600-2000 ms.

It should be noted that, when the length of the bar is less than 20% of the preset length, the multiple-length shear automatically optimizes the bar at the penultimate section, and automatically reduces one multiple length, so that the length of the bar at the last section is always more than 20% of the preset length. Only when the length of the bar is infinitely close to the preset length, the time for the brake skirt to stay in the neutral position is 0 ms.

When the braking skirt panel 100 is located at a high position or a middle position, the side of the braking skirt panel 100 facing the run-out table 400 is higher than the support surface of the run-out table 400, and when the braking skirt panel 100 is located at a low position, the side of the braking skirt panel 100 facing the run-out table 400 is lower than the support surface of the run-out table 400.

The bar material has an initial velocity in the first preset direction 11 and the second preset direction 12 after being accelerated on the run-out table 400. When the braking skirt panel 100 is in the middle position, one side of the supporting surface of the braking skirt panel 100, which faces the run-out table 400, is higher than the supporting surface of the run-out table 400, and when the braking skirt panel 100 is in the low position, one side of the supporting surface of the braking skirt panel 100, which faces the run-out table 400, is lower than the supporting surface of the run-out table 400, and when the braking skirt panel 100 moves from the middle position to the low position, a position is provided to enable the height of the supporting surface of the braking skirt panel 100, which faces the run-out table 400, to be equal to the height of the supporting surface of the run-out table 400, and at the moment, the bar can move. And after tail steel or other bars with a length less than a preset length reach the braking skirting board 100, the braking skirting board 100 needs to stay in the middle position for 0-2000 ms, and in the stay process, if the bar rolled by the next billet has moved from the run-out roller table 400 to one side of the braking skirting board 100, because the side of the braking skirting board 100 facing the run-out roller table 400 in the middle position is still higher than the support surface of the run-out roller table 400, the braking skirting board 100 can also block the bar rolled by the next billet, and prevent the bar from moving onto the braking skirting board 100 to cause steel disorder.

The support surface of the braking skirt 100 is arranged obliquely, at least in the high position, the side of the braking skirt 100 facing the run-out table 400 is higher than the side facing the cold bed braking plate 200, so that the braking skirt 100 pushes the bars upwards and towards the cold bed braking plate 200, so that the bars can be thrown to the cold bed braking plate 200.

In the embodiment shown in fig. 4 to 6, the support surface of the brake skirt 100 is inclined toward the cold bed brake plate 200 in each of the high position, the middle position and the low position. In other embodiments of the present application, the support surface of the braking skirt 100 may also be inclined towards the cold bed braking plate 200 only in the high position, as long as the bar is allowed to be pushed upwards and towards the cold bed braking plate 200 when being thrown.

The support surface of the cooling bed brake plate 200 is obliquely arranged, one side, facing the brake skirt plate 100, of the support surface of the cooling bed brake plate 200 is higher than one side, facing the cooling bed straightening plate 300, of the support surface of the cooling bed brake plate 200, and after the bar is thrown to the cooling bed brake plate 200, the bar moves to one side, facing the cooling bed straightening plate 300, of the support surface of the cooling bed brake plate 200 under the action of gravity, so that the cooling bed straightening plate 300 on the bar is facilitated.

The cooling bed brake plate 200 is further provided with a deceleration base plate 210, and when the speed of the rod material on the cooling bed brake plate 200 in the second preset direction 12 is larger than or equal to 16.4m/s, the deceleration base plate 210 is driven to rub the rod material, so that the speed of the rod material in the second preset direction 12 is reduced, and the rod material is prevented from flying out of the cooling bed 10 due to the fact that the speed of the rod material is too fast.

The cooling bed straightening plate 300 includes a plurality of cogging plates 310 and a plurality of moving teeth 320 arranged at intervals in the second preset direction 12. The side of the gullet plate 310 close to the cooling bed brake plate 200 is higher than the cooling bed brake plate 200, and the bar motion cooling bed brake plate 200 is blocked by the gullet plate 310 after being close to the side of the gullet plate 310, so that the speed of the bar in the first preset direction 11 is reduced to zero.

The movable tooth 320 can do up and down eccentric motion, the movable tooth 320 has a first position lower than the supporting surface of the slotted plate 310 and the supporting surface of the cold bed brake plate 200 and a second position higher than the supporting surface of the slotted plate 310 in the up and down eccentric motion, when the bar motion cold bed brake plate 200 is close to one side of the slotted plate 310, the movable tooth 320 moves upwards from the first position to the second position at the same time, firstly moves leftwards and then rightwards, and receives the bar on the cold bed brake plate 200 to enable the bar to reach the upper side of the slotted plate 310 in the motion process, the movable tooth 320 continues to move downwards from the second position to the first position at the same time, firstly moves rightwards and leftwards, and the bar on the movable tooth 320 is received by the slotted plate 310 in the motion process.

The rack plate 310 has a plurality of fixing grooves 311, each bar is disposed in the plurality of fixing grooves 311 along the second preset direction 12, the plurality of bars are sequentially disposed in the plurality of fixing grooves 311 along the first preset direction 11, and at most one bar is received in each fixing groove 311. That is, a plurality of bars are arranged on the rack plate 310 at intervals along the first preset direction 11, so that each bar can be individually arranged and separated from the adjacent bars.

The moving teeth 320 receive the bar on the fixed groove 311 and make the bar reach the upper side of the next fixed groove 311 in the process of moving from the first position to the second position, the moving teeth 320 continue to move downwards from the second position to the first position along the direction opposite to the first preset direction 11, the bar on the moving teeth 320 is received by the next fixed groove 311, so that the bar on the cold bed braking plate 200 reaches the first row of fixed grooves 311 of the tooth socket plate 310 through one period of movement of the moving teeth 320, and the other bar or bars on the tooth socket plate 310 are moved to the right in sequence.

The method for receiving the bar by the cooling bed comprises the following steps:

and S1, cutting the rolled steel billet to obtain a plurality of bars with preset length and tail steel with the length less than the preset length.

S2, the bars with preset length sequentially move on the output roller table 400 and are blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the bars in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and the high position and throws the bars to the cooling bed braking plate 200 in the process of moving from the middle position to the high position;

the tail steel with the length less than the preset length moves on the output roller table 400 and is blocked by the brake apron board 100, the brake apron board 100 sequentially moves from a high position to a middle position and a low position and receives the rod materials in the process of moving from the middle position to the low position, the brake apron board 100 sequentially moves from the low position to the middle position and stays in the middle position for 0-2000 ms, the rod materials move to the high position after the stay is completed, and the rod materials are thrown to the cooling bed brake plate 200 in the process of moving from the middle position to the high position.

S3, the bar thrown to the cold bed braking plate 200 moves to the side toward the cold bed straightening plate 300 by gravity and is stopped by the spline plate 310.

S4, when the speed of the bar on the cooling bed braking plate 200 in the second preset direction 12 is larger than or equal to 16.4m/S, the speed reduction base plate 210 is driven to rub the bar.

S5, moving the movable tooth 320 upwards from the first position and moving to the second position first leftwards and then rightwards, and receiving the bar on the cold bed brake plate 200 in the moving process to enable the bar to reach the upper side of the gullet plate 310, moving the movable tooth 320 continuously downwards from the second position and moving to the first position first rightwards and then leftwards, and receiving the bar on the movable tooth 320 by the gullet plate 310 in the moving process;

meanwhile, the other bars on the cogging plate 310 are integrally shifted to the right by one row by one cycle of the movement of the moving teeth 320.

The method for receiving a rod in a cooling bed according to the present application is described in further detail with reference to the following examples.

Example 1

The embodiment of the application provides a method for receiving a bar by a cooling bed, which comprises the following steps:

s1, rolling a billet with the length of 10.60m, and shearing to obtain 13 bars with the length of 72m, wherein the length of the last bar is 22 m.

S2, bars with the length of 72m sequentially move on the output roller table 400 and are blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the bars in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and the high position, and the bars are thrown to the cooling bed braking plate 200 in the process of moving from the middle position to the high position;

the tail steel with the length of 22m moves on the output roller table 400 and is blocked by the braking skirting board 100, the braking skirting board 100 sequentially moves from a high position to a middle position and a low position and receives the rod materials in the process of moving from the middle position to the low position, the braking skirting board 100 sequentially moves from the low position to the middle position and stays in the middle position for 1840ms, the rod materials move to the high position after the stay is completed, and the rod materials are thrown to the cooling bed braking plate 200 in the process of moving from the middle position to the high position.

S3, the bar thrown to the cold bed braking plate 200 moves to the side toward the cold bed straightening plate 300 by gravity and is stopped by the spline plate 310.

S4, when the speed of the bar on the cooling bed braking plate 200 in the second preset direction 12 is larger than or equal to 16.4m/S, the speed reduction base plate 210 is driven to rub the bar.

S5, moving the movable tooth 320 upwards from the first position and moving to the second position first leftwards and then rightwards, and receiving the bar on the cold bed brake plate 200 in the moving process to enable the bar to reach the upper side of the gullet plate 310, moving the movable tooth 320 continuously downwards from the second position and moving to the first position first rightwards and then leftwards, and receiving the bar on the movable tooth 320 by the gullet plate 310 in the moving process;

meanwhile, the other bars on the cogging plate 310 are integrally shifted to the right by one row by one cycle of the movement of the moving teeth 320.

Example 2

The embodiment of the application provides a method for receiving a bar by a cooling bed, which comprises the following steps:

s1, rolling the billet with the length of 10.62m, and shearing to obtain 13 bars with the length of 72m, wherein the length of the last bar is 43 m.

S2, bars with the length of 72m sequentially move on the output roller table 400 and are blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the bars in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and the high position, and the bars are thrown to the cooling bed braking plate 200 in the process of moving from the middle position to the high position;

the tail steel with the length of 43m moves on the run-out table 400 and is blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the rod materials in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and stays in the middle position for 1510ms, the rod materials move to the high position after the stay is completed, and the rod materials are thrown to the cold bed braking plate 200 in the process of moving from the middle position to the high position.

S3, the bar thrown to the cold bed braking plate 200 moves to the side toward the cold bed straightening plate 300 by gravity and is stopped by the spline plate 310.

S4, when the speed of the bar on the cooling bed braking plate 200 in the second preset direction 12 is larger than or equal to 16.4m/S, the speed reduction base plate 210 is driven to rub the bar.

S5, moving the movable tooth 320 upwards from the first position and moving to the second position first leftwards and then rightwards, and receiving the bar on the cold bed brake plate 200 in the moving process to enable the bar to reach the upper side of the gullet plate 310, moving the movable tooth 320 continuously downwards from the second position and moving to the first position first rightwards and then leftwards, and receiving the bar on the movable tooth 320 by the gullet plate 310 in the moving process;

meanwhile, the other bars on the cogging plate 310 are integrally shifted to the right by one row by one cycle of the movement of the moving teeth 320.

Example 3

The embodiment of the application provides a method for receiving a bar by a cooling bed, which comprises the following steps:

s1, rolling the billet with the length of 10.65m, and shearing to obtain 13 bars with the length of 72m, wherein the length of the last bar is 60 m.

S2, bars with the length of 72m sequentially move on the output roller table 400 and are blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the bars in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and the high position, and the bars are thrown to the cooling bed braking plate 200 in the process of moving from the middle position to the high position;

the tail steel with the length of 60m moves on the output roller table 400 and is blocked by the braking apron board 100, the braking apron board 100 sequentially moves from a high position to a middle position and a low position and receives the rod materials in the process of moving from the middle position to the low position, the braking apron board 100 sequentially moves from the low position to the middle position and stays at the middle position for 800ms, the rod materials move to the high position after the stay is completed, and the rod materials are thrown to the cold bed braking plate 200 in the process of moving from the middle position to the high position.

S3, the bar thrown to the cold bed braking plate 200 moves to the side toward the cold bed straightening plate 300 by gravity and is stopped by the spline plate 310.

S4, when the speed of the bar on the cooling bed braking plate 200 in the second preset direction 12 is larger than or equal to 16.4m/S, the speed reduction base plate 210 is driven to rub the bar.

S5, moving the movable tooth 320 upwards from the first position and moving to the second position first leftwards and then rightwards, and receiving the bar on the cold bed brake plate 200 in the moving process to enable the bar to reach the upper side of the gullet plate 310, moving the movable tooth 320 continuously downwards from the second position and moving to the first position first rightwards and then leftwards, and receiving the bar on the movable tooth 320 by the gullet plate 310 in the moving process;

meanwhile, the other bars on the cogging plate 310 are integrally shifted to the right by one row by one cycle of the movement of the moving teeth 320.

In summary, the method for receiving the rod material by the cooling bed of the present application enables the rod material with a length less than the preset length, including the tail steel and other shorter rod materials, to stay in the neutral position for a period of time after being received by the braking skirt board 100, so that the rod material with the length less than the preset length has enough sliding time on the braking skirt board 100, and when the moving teeth 320 move to the preset position, the steel throwing action is completed, thereby avoiding the steel disorder caused by the fact that the rod material rolled by the next steel billet cannot go to the cooling bed 10 due to the influence of the tail steel or other shorter rod materials staying on the braking plate 200 of the cooling bed.

The foregoing is illustrative of the present application and is not to be construed as limiting thereof, as numerous modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.