CN116140363A - Accurate control method for double-high-line coil collecting system - Google Patents

Abstract

The invention relates to the technical field of automatic control of wire rod coil collection, and particularly discloses an accurate control method of a double-high-line coil collection system, wherein a PLC control system controls acceleration and deceleration of an air cooling roller way according to the positions of coil coils, so that the heads and the tails of the two coil coils are separated; a flag switch is arranged at the barrel opening of the coil collector to judge whether the tail part of the coiled coil falls into the coil collector; the tray descends rapidly according to the flag switch signal, the front coil and the rear coil are distinguished by the separating claw, and the next coil falls onto the double core rods; the double core rods convert the coil of the previous coil from a vertical state to a horizontal state, and the coil transporting trolley transports the coil of the coil in the horizontal state to the C-shaped hook; the tray rises, the supporting claw of the tray is closed, the tray continues to rise from the waiting position to the stopping position, and the next coil winding is carried out; the coil collecting device is high in coil collecting stability, the coil collecting process is more intelligent, the labor intensity of operators is reduced due to the realization of full-automatic accurate collection, and unmanned operation is realized in a coil collecting area.

Description

Accurate control method for double-high-line coil collecting system

Technical Field

The invention belongs to the technical field of automatic control of wire rod coil collecting, and particularly relates to an accurate control method of a double-high-line coil collecting system.

Background

On the high-speed wire rod production line of automatic full continuous rolling production line in the metallurgical field, steel billets can form finished steel products of whole roots after being rolled by a rolling line, and the steel products are long due to the fact that the cross section area is small, so that the finished steel products are required to be changed into round coils by a wire laying machine, then air cooling is carried out on an air cooling roller way, the coil coils after cooling are required to be sequentially and horizontally arranged to be vertically arranged according to the sequence that the coils fall on the air cooling roller way, the problems of scraping, material reverse insertion, incapability of collecting due to the fact that two coils are not separated and the like are easily generated in the air cooling process and the air cooling process, the rolling rhythm is seriously affected, and the work output is reduced.

Meanwhile, once the reverse insertion or the coil winding disorder occurs, the rolling line cannot continue to be produced, the coil separation treatment is forced manually, and the personnel need to operate in the high-temperature and large-dust environment, so that the labor intensity is high. Therefore, a precise control method of the double-high-line coil collecting system is needed to be designed, and the problems that coil collecting rhythm is unstable, labor intensity is high, and yield cannot be effectively exerted are solved.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention aims to provide an accurate control method of a double-high-line coil collecting system.

The technical scheme adopted for solving the technical problems is as follows: a precise control method of a double-high-line coil collecting system comprises the following steps:

1) A PLC control system is installed, and the PLC control system utilizes a photoelectric switch installed at the tail part of the air cooling roller way to identify the position of the coil;

2) The PLC control system controls acceleration and deceleration of the air cooling roller way according to the positions of the coil coils, so that the heads and the tails of the two coil coils are separated;

3) A flag switch is arranged at the barrel opening of the coil collector to judge whether the tail part of the coiled coil falls into the coil collector;

4) The tray descends rapidly according to the flag switch signal, the front coil and the rear coil are distinguished by the separating claw, and the next coil falls onto the double core rods;

5) The double core rods convert the coil of the previous coil from a vertical state to a horizontal state, the coil transporting trolley transports the coil of the coil in the horizontal state to the C-shaped hook, the inner core shaft ascends, and the separating claw is opened;

6) And simultaneously, the tray ascends, the supporting claw of the tray is closed, the tray continues to ascend from the waiting position to the stopping position, and the next coil winding is carried out.

Specifically, a set of collection system is arranged at the tail part of the air-cooled roller way in the step 1), the collection system comprises a collection device, a cloth roller device, a plurality of groups of photoelectric switches, a nose cone, a separating claw, a tray, an inner mandrel, a double-mandrel motor and a lifting cylinder, the tray is arranged on the inner mandrel, the nose cone and the separating claw are arranged on the tray, the collection device is arranged on the separating claw, the plurality of groups of photoelectric switches are oppositely arranged outside the collection device, the cloth roller device is arranged on the upper part of the collection device, the inner mandrel is arranged inside the double-mandrel, the inner mandrel is lifted in the double-mandrel and used for controlling the lifting of the tray, and the double-mandrel motor and the lifting cylinder are arranged at the bottom of the double-mandrel and are used for controlling the rotation of the double-mandrel.

The cloth winder is characterized in that scattered wires conveyed by the air cooling roller way are uniformly distributed around the nose cone and used for limiting the coil winding to hang steel in the collector.

Specifically, the nose cone is formed by distributing the wiring winding nose cones of the cloth reeler and enabling the collected coiled coils to be smoothly sleeved on the double core rods.

Specifically, the separating claw is closed to hold the nose cone under the condition that the inner core shaft of the double core rod does not extend to hold the nose cone.

Specifically, the tray is used for uniformly conveying the coiled wire collected in the coil collector to the double core rods.

Specifically, the double-core rod is used for conveying the coiled coil collected by the tray from a vertical position to a horizontal position through rotation.

Specifically, the separating claw in the step 4) separates the front coil and the rear coil into a separating claw for closing, separates the two coils, opens the supporting claw on the tray, conveys the last coil to the coil conveying trolley through double-core rod rotation, and the coil collector starts to roll the next coil.

Specifically, the coil transporting trolley in the step 5) is used for transporting the coil on the horizontal double core rods to the C-shaped hooks, and then transporting the C-shaped hooks to a finished product storage area through the PF chain.

The invention has the following beneficial effects:

the accurate control method of the double-high-line coil collecting system designed by the invention has high coil collecting stability, can automatically judge the position of the coil and perform corresponding equipment actions; the coil collecting process is more intelligent, and can quickly react to prevent the coil from accumulating in the coil collector;

the device and the detecting element arranged on the coil collector can well shape the coil and descend at a uniform speed;

the double core rod realizes that the abrasion to the aged steel is minimized through a designed unique structure and a control algorithm;

the coil conveying trolley accurately hangs the coil on the C-shaped hook without deflection through accurate control;

the whole collection process can automatically run without manual intervention, and an operator only needs to set the operation mode to be an automatic control mode;

in addition, from the technical point of view, the realization of full-automatic accurate collection reduces the labor intensity of operators, and the unmanned operation of the coil collecting area is realized.

Drawings

Fig. 1 is a simplified overall construction of a coil collecting system.

FIG. 2 is an operational flow diagram of a method for precisely controlling a dual high-line roll-up system.

In the figure: 1-a coil collector; 2-a cloth winder; 3-photoelectric switch; 4-separating claws; 5-a tray; 6-an inner mandrel; 7-double core rods; 8-a double-core rod motor; 9-lifting oil cylinders; 10-nose cone; 11-a coil conveying trolley; 12-C type hooks; 13-a hydraulic pusher; 14-valve; 15-a speed reducer; 16-coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described in further detail below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1, the precise control method of the dual-altitude coil collecting system comprises the following steps:

1. the PLC control system is provided with Siemens, and the PLC control system utilizes a photoelectric switch arranged at the tail part of the air cooling roller way to identify the position of the coil and writes a control program in the PLC control system; the adjusting window displayed on the computer operation picture is used for realizing parameter adjustment.

2. The PLC control system controls acceleration and deceleration of the air cooling roller way according to the positions of the coil 16, so that the heads and the tails of the two coil 16 are separated.

3. A flag switch is arranged at the cylinder mouth of the coil collector 1 to judge whether the tail part of the coil 16 falls into the coil collector 1.

4. The tray 5 descends fast according to the flag switch signal, the separating claw 4 distinguishes the front coil 16 and the rear coil 16, the next coil 16 falls onto the double mandrel 7, the separating claw 4 distinguishes the front coil 16 and the rear coil 16 to be closed for the separating claw 4, the two coils 16 are separated, the supporting claw on the tray 5 is opened, the last coil 16 is transported to the coil transporting trolley 11 through the rotation of the double mandrel 7, and the coil collector 1 starts to roll up the next coil 16.

5. The double core rod 7 converts the upper coil 16 from the vertical state to the horizontal state, the coil transporting trolley 11 transports the coil 16 in the horizontal state onto the C-shaped hook 12, the inner core shaft 6 ascends, and the separating claw 4 opens.

6. Simultaneously, the tray 5 ascends, the supporting claw of the tray 5 is closed, the tray 5 continues to ascend from the waiting position to the stopping position, and the next coil 16 is wound.

As shown in fig. 2, a set of coil collecting system is arranged at the tail part of the air-cooled roller way, the coil collecting system comprises a coil collector 1, a coil collector 2, a plurality of groups of photoelectric switches 3, a nose cone 10, a separating claw 4, a tray 5, an inner mandrel 6, a double-core rod 7, a double-core rod motor 8 and a lifting cylinder 9, wherein the tray 5 is arranged on the inner mandrel 6, the nose cone 10 and the separating claw 4 are arranged on the tray 5, the coil collector 1 is arranged on the separating claw 4, the plurality of groups of photoelectric switches 3 are oppositely arranged outside the coil collector 1, the coil collector 2 is arranged at the upper part of the coil collector 1, the inner mandrel 6 is arranged inside the double-core rod 7, the inner mandrel 6 is lifted in the double-core rod 7 and used for controlling the lifting of the tray 5, the double-core rod motor 8 and the lifting cylinder 9 are arranged at the bottom of the double-core rod 7 and used for controlling the rotation of the double-core rod 7.

The cloth winder 2 uniformly distributes scattered wires conveyed by the air cooling roller way around the nose cone 10 and is used for limiting the coil 16 to hang steel in the collector 1.

The nose cone 10 distributes the wiring winding nose cone 10 of the cloth rewinder 1 and enables the collected coiled coil 16 to be smoothly sleeved on the double-core rod 7.

The separating claw 4 is closed to hold the nose cone 10 in the case where the inner mandrel 6 of the double mandrel 7 is not extended to hold the nose cone 10.

The pallet 5 uniformly conveys the coil 16 collected in the collector 1 to the double mandrel 7.

The double mandrel 7 rotates the coil 16 collected by the pallet 5 from the vertical position to the horizontal position.

The coil transporting trolley 11 is used for transporting the coil 16 on the horizontal double-core rod 7 to the C-shaped hook 12, and then transporting the C-shaped hook 12 to a finished product storage area through a PF chain.

Embodiments of the invention

1. The inner mandrel 6, the nose cone 10 and the separating claw 4 control functions.

The inner spindle 6 has 2 detection points, one is that the inner spindle 6 is in the high position and one is that the inner spindle 6 is in the low position.

The inner mandrel 6 is in a manual state as long as the double mandrel 7 is not selected automatically, and can be extended at any time, but retraction must be performed with the separating pawl 4 closed.

If the collector reel is selected to be automatic, the dual core rod 7 is also selected to be automatic, and the inner core shaft 6 is in an automatic state. In the automatic state, the inner spindle 6 is extended whenever the switch of the separation claw 4 is operated to open; in addition, when the double mandrel bar 7 is operated 2, the inner mandrel bar 6 starts to extend after a delay of 1 second.

The separating claw 4 is a one-way valve which is opened when power is supplied and closed when power is lost, so that the nose cone 10 is designed to ensure safety, and the separating claw 4 is closed when power is lost, so that the nose cone 10 cannot fall down.

The separating claw 4 has 2 detection points, one in the open position of the separating claw 4 and one in the closed position of the separating claw 4.

In the case where no automatic or vertical twin-core reel is selected for the collection, the separating claw 4 is in a manual state. The separation claw 4 is opened whenever the double core rod 7 is in the flat stop position or the upright stop position and the inner core shaft 6 is in the extended position, otherwise the separation claw 4 is in the closed state.

The separating claw 4 is in an automatic state as long as the collector is selected to be automatic. In the automatic state, the double core rod 7 is in a flat stop position or a vertical stop position, the inner core shaft 6 is in an extending position, the vertical core rod is not rolled, the tray 5 is in a high position, at least one coil in the coil collector 1 alarms, the tray 5 is in a closed state, the manual closing switch of the separating claw 4 is not selected, the separating claw 4 is automatically opened, and otherwise the separating claw 4 is in a closed state. In the automatic state, the separation claw 4 can be manually closed at any time.

2. Tray control function.

2.1 detection signal and function of lifting tray 5.

The lifting tray 5 has 9 detection points. The device comprises a position encoder, a lower deceleration position, a lower stop position, an upper deceleration position, an upper stop position, a left tray opening position, a left tray closing position, a right tray opening position and a right tray closing position.

The position encoder is used for feeding back the real-time position of the tray 5 during the lifting process. The lower deceleration position is used for decelerating the tray 5 during the descent process, and the lower stop position is used for stopping the tray during the descent process. The upper deceleration position is used for decelerating during the lifting process of the tray 5, and the upper stop position is used for stopping during the lifting process of the tray 5. The tray 5 open position is used for stopping the tray opening motion, and the tray 5 closed position is used for stopping the tray 5 closing motion.

2.2 operating conditions for lifting and lowering the tray 5.

The lifting operation of the lifting tray 5 requires the following conditions: one is upper and lower limit, and the other is that the frequency converter has no fault. The tray 5 cannot rise when the upper limit detects, and the tray 5 cannot descend when the lower limit detects. The inverter failure tray 5 cannot rise. In addition, the tray 5 can only be raised to the intermediate position in the open state, and the tray 5 is closed if it is necessary to raise from the intermediate position to the receiving position.

Conditions for closing and opening the tray 5: whether the tray 5 is automatic or manual, the tray 5 can be closed only when the double core rod 7 is in a flat stop position or a vertical stop position and the double core rod 7 is in a stop state; the tray 5 cannot be opened during the lifting from the intermediate position to the receiving point. Under the automatic condition of the tray 5, the tray 5 can be closed only when the tray 5 moves 1, the vertical core rod is not rolled and the tray is in a stop state; only the tray 5 can be opened in the course of the low position (tray position less than 50) or the rise from the low position to the intermediate position;

2.3 control procedure of lifting tray 5.

The actions of the tray 5 are divided into manual and automatic cases;

2.3.1 Manual control of lifting tray 5

The tray 5 may be manually controlled as long as the tray 5 is not selected automatically. The tray 5 is lifted or lowered in a manual control manner, and a corresponding action can be performed after a delay of 2S.

2.3.2 automatic control of lifting tray 5

Only if both the collection and the tray 5 are selected to be automatic, the tray 5 is in an automatic state, and 4 actions (action 0, action 1, action 2 and action 3) are automatically performed on the tray 5.

When the tray 5 is in the lower stop position and both the left and right trays are in the rising edge of the open position, if the tray 5 is in the low position (the tray encoder reading is less than 100), then the set action 0. At action 0, the tray 5 starts to rise rapidly to the intermediate position (2750) (the rising speed is determined by the difference between the tray 5 position and the target position).

During action 0, when the tray 5 reaches the neutral position, action 1 is set, and at the same time, action 0 is reset. At action 1, the tray 5 is closed and raised to the receiving point (3530) (the raising speed is determined by the difference between the tray position and the target position).

During act 1, tray 5 reaches the high position (tray encoder reading greater than 3400 or tray reaching the upper stop position), then act 1 is reset.

When the separating claw 4 is in the open position and the tray 5 has a roll in the high position or on the vertical mandrel, both the operations 0 and 1 are not performed, the operation 2 is set. In the operation 2, the tray 5 is slowly lowered (the lowering speed can be set from the computer screen) until the coil 16 is completely dropped onto the tray 5.

In the process of the action 2, the tray 5 does not reach the low position, the flag switch on the coil collector 1 can not detect the rolled piece to delay for 100ms or the air-cooled roller way photoelectric switch 3 can detect the tail steel signal to delay the setting time of the computer picture (the delay time is set at the descending delay position of the tail steel tray 5 of the computer monitoring picture), the setting action 3 is carried out, and meanwhile, the action 2 is reset. At action 3, the tray 5 is quickly lowered to the lowered position (20) (the lowering speed is determined by the difference between the tray position and the target position).

When the automatic switching is performed to manual operation, all of the operations 0, 1, 2, and 3 are reset. These 4 actions of the tray 5 are switched manually during the completion of the actions, the tray 5 will be converted into a manual state, and the automatic actions can be continued when switched back to automatic again.

3. Double core rod 7 control function

3.1 detection Signal of double core rod 7

The double core rod 7 has 5 detection elements, which are a position encoder, a flat deceleration position proximity switch, a flat stop position proximity switch, a vertical deceleration position proximity switch, and a vertical stop position proximity switch, respectively. The position encoder is used for detecting the real-time position of the double core rod 7 in the 180-degree rotation process. The flat deceleration position is used for decelerating during the flat turning and vertical rotating process of the double core rods 7, and the flat stop position is used for stopping during the flat turning and vertical rotating process of the double core rods 7. The vertical deceleration position is used for decelerating the double core rods 7 in the vertical-to-horizontal rotation process, and the vertical stop position is used for stopping the double core rods 7 in the vertical-to-horizontal rotation process.

3.2 operating conditions of double mandrel 7

The double core rod 7 has two actions, one is rotated horizontally and is rotated vertically and horizontally, and the two actions rotate back and forth by 180 degrees. The horizontal rotation and vertical rotation are that the core rod rotates clockwise, the reading of the encoder is changed from small to large, and the proximity switch of the deceleration position and the stop position is arranged below the core rod rotating disc; the vertical rotating flat core rod rotates anticlockwise, the reading of the encoder is reduced from large to small, and the speed reducing position and stopping position proximity switch is arranged above the core rod rotating disc.

The most main preconditions for the mandrel action are that 4 mandrel rods are respectively arranged, the inner mandrel rods 6 are in the retracted position, the separating claws 4 are in the closed position, the left lifting tray 5 and the right lifting tray 5 are in the open position, and the coil conveying trolley is not arranged on the mandrel rod side. The above 4 conditions are not satisfied, and the automatic and manual double core rod 7 cannot be rotated.

Two visual judging methods are provided for judging whether the inner mandrel 6 is at the retracted position, one is to see that the inner mandrel 6 on the operation table extends out of the retraction indicator lamp; one is to look at the status display interface on the computer screen, and the display of the extension and retraction of the inner mandrel 6 is also arranged on the status display interface.

Whether the coil transporting trolley 11 is on the core rod side or not, we can see three displays of the position of the coil transporting trolley 11 on a computer picture, one is that the coil transporting trolley 11 is on the core rod side, one is that the coil transporting trolley 11 is on the waiting position, one is that the coil transporting trolley 11 is on the C-shaped hook side, the coil transporting trolley 11 can rotate at the waiting position and the C-shaped hook side double core rods 7, but the double core rods 7 can not rotate regardless of manual and automatic operation when the coil transporting trolley 11 is on the core rod side.

3.3 control procedure of double core rod 7

The actions of the double core rod 7 are classified into two cases of hand and automatic:

3.3.1 Manual control of double core rod 7

The mandrel bar may be manually operated as long as the mandrel bar is not selected for automation (even if the mandrel bar is selected for automation). Only when the vertical stop position is not available, the horizontal turning and vertical movement can be performed, and only when the horizontal stop position is not available, the vertical turning and horizontal movement can be performed. The mandrel can execute the corresponding action after delaying for 2S when executing the horizontal turning vertical or vertical turning horizontal operation in a manual control mode. When the encoder reads less than 1780 in the horizontal rotation, the encoder rotates rapidly at 42% speed, rotates at 12% speed when the encoder reads more than 1780, and rotates at 7% speed when the encoder reads at the deceleration position; when the encoder readings are greater than 50, the encoder rotates rapidly at 42% speed, when less than 50, rotates at 12% speed, and when in the retard position, rotates at 7% speed. When the mandrel bar rotates from the stop position to a point (when the mandrel bar is between the stop position and the deceleration position), the mandrel bar is rotated in the stop position direction, and the mandrel bar is rotated at a speed of 12%. After the stop bit is detected, the mandrel is stopped.

3.3.2 automatic control of double core rods 7

Only if both the collecting roll and the core rod are selected to be automatic, the core rod can be in an automatic state, and the core rod has three actions (action 0, action 1 and action 2) in the automatic state.

The vertical mandrel has a roll and the lifting tray reaches a rising edge of the lower stop position as a trigger action signal, if the mandrel is at a low position (encoder reading is less than 250) then action 0 is set, if the mandrel is at a high position (encoder reading is less than 1780) then action 1 is set, that is, action 0 is to automatically control the mandrel to complete the panning and the action 1 is to automatically control the mandrel to complete the panning.

In the process of the operation 0, the mandrel is at a high position, and when the mandrel reaches a target position, the operation 2 is set, and meanwhile, the horizontal mandrel is set to have a roll, the operation 0 is reset, and the vertical mandrel is reset to have a roll.

In the process of the operation 1, the core rod is at a low position, and when the core rod reaches a target position, the setting operation 2 is performed, and meanwhile, the setting horizontal core rod is provided with a roll, the resetting operation 1 is performed, and the resetting vertical core rod is provided with a roll.

When action 2 comes, the core rod is rotated in place under the automatic state, the inner core shaft starts to rise, the nose cone is jacked up, and when the inner core shaft is in an upper position, action 2 is reset.

So far, the core rod automatically completes one cycle action. The rotational speed of the core rod is calculated from the difference between its current position and the target position (the maximum water exceeds 90% of the maximum speed, and the minimum water is not less than 9%) before reaching the deceleration position, the speed drops to 7% after reaching the deceleration position, and the core rod is stopped after the stop position is detected. Automatic switching to manual operation, all of action 0, action 1, and action 2 are reset. The three actions of the double core rod are switched manually in the process of completing the actions, and the actions cannot be continued when the actions are switched back to automatic again.

4. And the coil transporting trolley 11 controls the function.

5.1 detection Signal of the coil handling Trolley 11

The coil-carrying trolley 11 has 14 (15) monitoring points. The position encoders of the coil conveying trolley 11 are respectively used for position feedback in the coil conveying process of the coil conveying trolley 11. The trolley core rod side speed reducing position is used for reducing speed when the trolley moves towards the core rod side; and a stop position at the side of the trolley mandrel for stopping the movement of the trolley when the trolley moves to the mandrel spring side. A deceleration position on the C-shaped hook 12 side of the trolley is used for decelerating when the trolley moves to the C-shaped hook 12 side; the stop position of the C-shaped hook 12 of the trolley is used for stopping the action when the trolley moves to the C-shaped hook 12. The upper limit of the trolley is used for stopping the lifting action of the trolley; the trolley lower limit is used for stopping the trolley descending action. The left fixed arm opening position and the right fixed arm opening position are used for stopping the opening action of the fixed arms. The left fixed arm closing position and the right fixed arm closing position are used for stopping the closing action of the fixed arms. The left moving arm opening position and the right moving arm opening position are used for stopping the opening action of the moving arm. The moving arm position encoder is used for position feedback when the moving arm acts. The cold metal detector is used to detect whether there is a coil on the C-hook 12.

4.2 control Process of the coil handling Cart 11

The equipment actions of the coil handling trolley 11 are divided into two cases of manual and automatic:

4.2.1 Manual control of the roll-handling Cart 11

The roll-up carriage 11 can be manually controlled to move, lift and arm-protecting actions only without selecting an automatic roll-up carriage. When the coil carriage 11 moves toward the mandrel bar side, the carriage can move without limitation as long as it is not in the low region (less than 3800), and when it reaches the low region, the carriage must be in the low position and the double mandrel bar 7 is in the flat stop position or the upright stop position, and the carriage can move. When the trolley moves to the side of the C-shaped hook 12, the trolley can move to the side of the hook only when the cold metal detector detects that the C-shaped hook 12 is not coiled and the clamping device is in a clamping state, and the trolley can move without limitation as long as the stop position of the side of the C-shaped hook 12 is not reached. When the cold metal detector detects that the C-shaped hook 12 is coiled, or the clamping device is not in a clamping state, the coil conveying trolley waits at a waiting position. (if the C-shaped hook 12 has the false detection of the coil signal, the check can be carried out on the computer monitoring picture to check the coil signal, and the check signal is cancelled in time after the restoration), the trolley can rise at any time as long as the upper limit is not used; the trolley can descend in the high area (more than 4300) without lower limit, if the trolley does not exist in the high area, the fixed arm cannot descend in the closed position, and the trolley cannot descend in the core rod side deceleration position or the core rod side stop position. A step of

4.2.2 automatic control of the roll-handling carriage 11

In the automatic case: only if both the collection roll and the trolley are selected to be automatic, the trolley can be in an automatic state. In the automatic state, the cart has 5 actions (action 0, action 1, action 2, action 3, action 4).

The horizontal core rod is provided with a coil, the trolley is not coiled, the core rod is set in a horizontal stop position or a vertical stop position, the action 0 is set, and the actions 3 and 4 are reset. When the operation 0 is started, if the carriage is not at the low position and there is no coil on the carriage, the carriage is lowered, if the carriage is at the low position, the carriage is moved from the waiting position to the mandrel bar side, the target position is 45 (the speed is calculated from the difference between the current position and the target position), the deceleration is started when the deceleration position on the mandrel bar side is detected, and the carriage is stopped when the stop position on the mandrel bar side is detected. At action 0, the fixed arm is opened if the fixed arm is not in the open position, and the movable arm is retracted if the movable arm is not in the rear position.

In the process of action 0, the trolley reaches the target position, the trolley is in a low area, the horizontal core rod is provided with a coil, the trolley is not provided with a coil, the action 1 is set, and meanwhile, the action 0 is reset and the coil-placing and transporting trolley is provided with a coil. After the action 1, the trolley starts to ascend until the trolley reaches the upper limit, and the trolley moves the guard arm to start to advance.

In the process of the action 1, the coil transporting trolley has coils in a low area or the coil transporting trolley, the coil transporting trolley rises to a high position, the action 2 is set, and meanwhile, the action 1 is reset, the coil transporting trolley has coils and the horizontal core rod has coils. In the operation 2, the fixed arm is closed, and the trolley starts to move toward the C-shaped hook 12 after the fixed arm is closed until the closing position is detected. If the C-hook 12 is not occupied or the cold metal detector detects a coil on the C-hook 12, the trolley target position is 4000 (i.e., the waiting position on the C-hook 12 side); otherwise, the target position of the trolley is 9650 minus half the roll length and the compensation value set on the computer screen (the roll length is calculated from the moving distance of the moving arm).

In the process of action 2, when the trolley is in the upper position, the C-shaped hook 12 occupies a position, the trolley reaches a high position (more than 7000 or a stop position at the side of the core rod), and the hook position is not stopped, the action 3 is set, and meanwhile, the action 2 is reset, and the trolley is reset to have a coil. At action 3, if the trolley is in the high position, the trolley starts to descend until the trolley is detected in the low position.

In the process of the action 3, when the trolley reaches the target position, the trolley is at a high position and the trolley descends to a low position, the action 4 is set, and the action 3 is reset. When the action 4 is finished, if the trolley is at a low position, the movable guard arm retreats and the fixed guard arm is opened; after the arm is moved to the rear position and the fixed arm is opened, the carriage starts to move to the double-core rod side, if the action 0 is not performed, the target position is waiting for 4000, and if the action 0 is performed, the target position is the winding position 45.

In the process of action 4, the trolley reaches the target position, the trolley is in the middle position (more than 3800 and less than 4300), the fixed arm is in the open position, the movable arm is in the rear position, the action 4 is reset, and meanwhile the unreeling signal is set (in addition, the method for setting the unreeling signal is that when the trolley is retreated and reaches the range of 4100 to 4700 in the condition of action 4 or a horizontal mandrel, the C-shaped hook 12 starts unreeling, after the C-shaped hook 12 clamp is opened, the hook is proved to be unreeled, the unreeling signal is reset, and if the clamp proximity switch is broken, the unreeling signal can be reset through a reset button added on a computer picture by me.

When the automatic switching is performed to manual operation, all of the operations 0, 1, 2, 3, and 4 are reset. In the automatic action process of the coil conveying trolley, the manual operation is switched, the trolley is converted into a manual state, and when the automatic operation is switched back to the automatic operation again, the automatic operation of the trolley can be continued. In the automatic control mode of the coil-carrying trolley, the trolley advances from the C-shaped hook to the core rod side in the execution process of the action 4, and after the trolley reaches a waiting position and stops, all actions 0, 1, 2, 3 and 4 are reset, and the next action cycle is executed again.

5. The rolled piece is integrated with roll tracking.

When the coil collection selection is automatic, in the process of lifting the tray 5 to act 2 (the tray 5 is lifted to the coil receiving position after the middle position is closed), one opening signal of the separating claw 4 sets the vertical core rod to have a coil.

When the coil collecting is automatic, the core rod is in the process of the action 0 (the core rod is horizontally rotated and vertically erected), the core rod is in the high position, and when the core rod reaches the target position, the horizontal core rod is set to have the coil, and meanwhile, the vertical core rod is reset to have the coil. In the process of operation 1 (vertical turning of the mandrel), the mandrel is in the low position, and the mandrel reaches the target position, the horizontal mandrel is set to have a roll, and the vertical mandrel is reset to have a roll.

When the coil collecting device is automatic and the trolley is automatic, the trolley is in the process of action 1 (the trolley reaches the coil receiving position at the side of the core rod and starts to ascend to receive coils, the movable arm and the fixed arm start to clamp coils), the coil transporting trolley is in a low area, the coil transporting trolley ascends to a high position, and the coil transporting trolley is set to have coils, and meanwhile the horizontal core rod is reset to have coils.

When the coil collecting is automatic and the cart is automatic, during the operation 2 of the cart (the cart reaches the coil discharging position on the side of the C-shaped hook 12, the coil discharging starts to descend, the moving arm and the fixed arm start to unwind the coil), the cart is in the upper position, the C-shaped hook 12 occupies a space, the cart reaches the high position (more than 7000 or the stop position on the side of the mandrel), and the cart reaches the target position, and the cart is reset and the C-shaped hook 12 is set to have a coil.

The C-hook 12 clamp opens and the clamp proximity switch resets the C-hook 12 to a coil after no signal is detected for 4 seconds.

The present invention is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present invention can fall within the scope of the present invention if the present invention has the same or similar technical solutions.

The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.

Claims (9)

1. The accurate control method of the double-high-line coil collecting system is characterized by comprising the following steps of:

1) A PLC control system is installed, and the PLC control system utilizes a photoelectric switch installed at the tail part of the air cooling roller way to identify the position of the coil;

2) The PLC control system controls acceleration and deceleration of the air cooling roller way according to the positions of the coil coils, so that the heads and the tails of the two coil coils are separated;

3) A flag switch is arranged at the barrel opening of the coil collector to judge whether the tail part of the coiled coil falls into the coil collector;

4) The tray descends rapidly according to the flag switch signal, the front coil and the rear coil are distinguished by the separating claw, and the next coil falls onto the double core rods;

5) The double core rods convert the coil of the previous coil from a vertical state to a horizontal state, the coil transporting trolley transports the coil of the coil in the horizontal state to the C-shaped hook, the inner core shaft ascends, and the separating claw is opened;

6) And simultaneously, the tray ascends, the supporting claw of the tray is closed, the tray continues to ascend from the waiting position to the stopping position, and the next coil winding is carried out.

2. The precise control method of the dual-high-speed wire coil collecting system according to claim 1, wherein a coil collecting system is arranged at the tail part of the air-cooled roller way in the step 1), the coil collecting system comprises a coil collecting device, a coil distributor, a plurality of groups of photoelectric switches, a nose cone, a separating claw, a tray, an inner mandrel, a dual-mandrel motor and a lifting cylinder, the tray is arranged on the inner mandrel, the nose cone and the separating claw are arranged on the tray, the coil collector is arranged on the separating claw, a plurality of groups of photoelectric switches are oppositely arranged outside the coil collector, the coil distributor is arranged at the upper part of the coil collector, the inner mandrel is arranged inside the dual-mandrel, the inner mandrel ascends and descends in the dual-mandrel for controlling the ascending and descending of the tray, and the dual-mandrel motor and the lifting cylinder are arranged at the bottom of the dual-mandrel for controlling the rotation of the dual-mandrel.

3. The precise control method of the dual-high-line coil collecting system according to claim 2, wherein the cloth winder uniformly distributes scattered line coils conveyed by the air cooling roller way around nose cones and is used for limiting coil coils to hang steel in the coil collecting device.

4. The method of claim 2, wherein the nose cone is used to distribute the wire wound nose cone of the cloth winder and to allow the collected coil to be smoothly sleeved on the double mandrel.

5. The method of claim 2, wherein the separating pawl is closed to hold the nose cone without the inner mandrel of the dual mandrel extending to hold the nose cone.

6. The method of claim 2, wherein the pallet is used to uniformly transport the coil collected in the collector onto the dual mandrel.

7. The method of claim 2, wherein the dual core rod is rotated to transport the coil collected from the pallet from a vertical position to a horizontal position.

8. The precise control method of the dual-high-speed coil collecting system according to claim 1, wherein the separating claw in the step 4) distinguishes the front coil and the rear coil into a separating claw to be closed, separates the two coils, opens the supporting claw on the tray, conveys the last coil to the coil transporting trolley through the rotation of the dual-core rod, and the coil collecting device starts to collect the next coil.

9. The precise control method of the dual-high-speed wire coil collecting system according to claim 1, wherein the coil transporting trolley in the step 5) transports coil coils on the dual-core rod in a horizontal position to the C-shaped hook, and then the C-shaped hook transports the coil coils to a finished product storage area through the PF chain.

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