Aluminum processing production line rapid coiling device based on seam detection and implementation method

Abstract

The invention relates to an aluminum processing production line rapid winding device based on seam detection and an implementation method. The aluminum processing production line rapid winding device comprises an outlet pinch roll set, outlet scissors and an outlet deflector roll set which are sequentially arranged from back to front in the strip conveying direction, and a first seam sensor is arranged above the rear side of the outlet pinch roll set. A second sewing opening sensor is arranged above the position between the outlet scissors and the outlet deflection guide roller set, a coiling machine with a pressing roller at an inlet is arranged below the front side of the outlet deflection guide roller set, and an outlet coil unloading trolley with a first carrier roller and a second carrier roller is arranged on the lower side of the coiling machine. Through the device and method, the position of the sewing opening can be accurately recognized in real time, the outlet section rubber roller is effectively prevented from being scratched, the production efficiency is improved, the product quality is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to a rapid coiling device for an aluminum processing production line based on seam opening detection and an implementation method thereof. Background Art

[0002] In the aluminum processing and production process, coiling is one of the key processes on the production line, and its quality directly affects the performance and appearance of the final product. Traditional coiling equipment usually relies on manual operation or simple mechanical control during the coiling process, and it is difficult to accurately detect and process the seam position of the strip. The seam is the seam area formed by welding or connecting different sections of the strip during the strip production process. Its physical properties are different from other parts of the strip, such as uneven thickness and strength changes. In the traditional coiling process, the presence of the seam is likely to cause the following problems: 1) Low production efficiency: Traditional equipment requires manual intervention to adjust the seam position or deal with the seam problem of the tail winding, which increases the complexity of operation and reduces production efficiency; 2) High equipment loss: Frequent tension fluctuations and manual intervention may cause unnecessary movement or damage to the equipment, increasing maintenance costs.

[0003] In order to solve the above problems, some improvement schemes have been proposed in the prior art, such as optimizing the winding process by adding a tension control device or improving the structure of the winding machine. However, these schemes often fail to fundamentally solve the problem of winding automation, and still rely on manual experience or simple mechanical control, which is difficult to meet the requirements of modern industrial production for high efficiency, high quality and high automation.

[0004] Therefore, developing a device that can automatically detect the position of the seam and achieve fast and accurate winding has become a technical problem that needs to be solved urgently in the aluminum processing industry. Summary of the invention

[0005] The purpose of the present invention is to provide a fast winding device and implementation method for an aluminum processing production line based on seam detection. The device and method can accurately identify the position of the seam in real time, effectively avoid scratches on the rubber roller at the exit section, improve production efficiency, improve product quality and reduce production costs.

[0006] The technical solution of the present invention is: a fast winding device for an aluminum processing production line based on seam mouth detection, comprising an exit pinch roller group, an exit scissors, and an exit deflection roller group arranged in sequence from back to front along the strip conveying direction, a first seam mouth sensor is arranged above the rear side of the exit pinch roller group, a second seam mouth sensor is arranged above between the exit scissors and the exit deflection roller group, a coiler with a pressure roller at the entrance is arranged below the front side of the exit deflection roller group, and an exit unloading trolley with a first roller and a second roller is arranged at the lower side of the coiler.

[0007] Furthermore, the coiling machine is provided with a coil diameter measuring sensor and a PLC controller.

[0008] Furthermore, a method for realizing rapid coiling of an aluminum processing production line based on seam detection includes a rapid coiling device of an aluminum processing production line based on seam detection, and includes the following steps: Step 1: Real-time detection of the position of the seam opening and sending the seam opening position signal to the PLC controller and recording the moment as zero time T0, collecting the seam opening width X0, the speed V1 of the strip exit segment line and the distance L1 from the installation position of the first seam opening sensor to the exit pinch roller group; calculating the moment T1 when the seam opening arrives at the exit pinch roller group, at which time the exit pinch roller group is controlled to lift up and allow the seam opening and a strip with a length of X1 behind the seam opening to pass through the exit scissors, when the strip X1 passes through, calculating this moment as the shearing moment T2, the exit stops, the exit pinch roller is pressed down, and the exit scissors perform the shearing operation; Step 2: The second seam mouth sensor is used to perform secondary positioning of the seam mouth, and the time t1 required for the strip to complete shearing to complete speed increase is calculated. The distance required for speed increase is X3; the distance from the second seam mouth sensor to the exit guide roller group is L2, and the time when the seam mouth arrives at the exit guide roller group is recorded as T3. At this time, the upper roller of the exit guide roller group is lifted, and the time of lifting and falling is the time t2 when the seam mouth passes through the exit guide roller group; Step 3: According to the distance L3 from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the outlet guide roller group and the outlet speed V1, calculate the time t3 from the seam mouth from the outlet guide roller group to the coiler pressure roller, and record the time before the seam mouth reaches the coiler pressure roller as T4, at which time the coiler pressure roller is lifted; Step 4: Calculate the time when the exit unloading trolley descends and record it as T5. After the seam mouth passes through the pressure roller of the coiler, when the seam mouth arrives in front of the first roller, the exit unloading trolley descends a certain distance so that the first roller and the second roller will not be scratched by the seam mouth; Step 5: Calculate the rising moment T6 of the exit unloading trolley. When the seam mouth passes through the second roller smoothly, the exit unloading trolley rises again to support the coil that is about to be coiled, completing the entire exit rapid coiling process.

[0009] Furthermore, in step 1, T0=0 in: T0: the time when the exit fast coiling program starts, s; X0: width of the seam of the strip, m; V1: linear velocity of the exit section, m / s; L1: The distance from the installation position of the first sewing port sensor to the outlet pinch roller group, m; T1: the moment when the sewing mouth reaches the outlet pinch roller group, s; X1: The length of the strip reserved for coiling after the seam, m; T2: The moment when the export scissors cut the tail of the belt, s.

[0010] Furthermore, in step 2, in: a0: Exit start acceleration, m / s 2 ; t1: The time required for the strip to be sheared and speeded up, s; X3: The distance from the start of the exit to the completion of the speed increase of the strip, m; L2: The distance from the second seam outlet sensor to the exit guide roller group, m; T3: The moment when the seam mouth reaches the exit guide roller group, s.

[0011] Furthermore, in step three, T4=t3+T3 in: L3: The distance from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the outlet guide roller group, m; t3: The time from the exit guide roller group to the coiler pressure roller of the seam mouth, s; T4: The time before the seam mouth reaches the coiler roller, s.

[0012] Furthermore, the L3 calculation formula is derived as follows: Assume that the pressure roller of the coiler rotates around the center point P1, the length of the rotation axis of the pressure roller is set to r, the center point of the coiler is point P2, and the contact point of the upper and lower rollers of the outlet guide roller group is P3. By measuring P1P2=A, P2P3=B, P1P3=C; since the position of the contact point O between the pressure roller and the aluminum coil is variable, this outlet coiling model is abstracted as a △P1P2P3 and a corresponding rectangular coordinate system is established to obtain the distance L3 from a moving point O in the triangle to the contact point P3 of the upper and lower rollers of the outlet guide roller group; Set P1 at the origin (0, 0), P2 at (A, 0), and P3's coordinates to (x, y), satisfying: From the above equation, we can solve: Set the coordinates of point O to (x0, y0), satisfying: The above equation can be solved to get: Get the distance L3 from the exit guide roller group to the coiler roller: The simplified calculation formula of the distance L3 from the outlet guide roller group to the coiler roller is: Where, r: length of the roller rotation axis, m; A: The straight-line distance from the center point P1 of the roller axis to the center point P2 of the coiler, m; B: The straight-line distance from the center point P2 of the coiler to the contact point P3 of the upper and lower rollers of the outlet guide roller group, m; C: The straight-line distance from the center point P1 of the roller axis to the contact point P3 of the upper and lower rollers of the outlet guide roller group, m; R: The diameter of the roll off the machine, m.

[0013] Furthermore, in step 4, since the radius R of the coiled material is variable, the distance L4 from the contact point O between the coiler roller and the aluminum coil to the contact point M between the first roller and the aluminum coil, and the distance L5 from the contact point O between the coiler roller and the aluminum coil to the contact point N between the second roller and the aluminum coil also vary with the coil radius R; by establishing a coordinate system to obtain the length L4 of the arc OM and the length L5 of the arc ON, the calculation formula is derived as follows: 1) Determine the equations of circle P2 and circle P1: The center of circle P2 is at the origin (0,0), and the equation is: x 2 +y 2 =R 2 ; The center of circle P1 is at point P1(a,b), and its equation is: (x) 2 +(yb) 2 =r 2 ; 2) Determine the coordinates of the intersection point O: The intersection point O is the intersection of circle P2 and circle P1. By combining the equations of the two circles in step 1), we can solve the coordinates of the intersection point O (x o ,y o ); 3) Determine the coordinates of point M and point N: Point M(X M , Y M ) and point N(-X M , Y M) on circle P2, 4) Calculate the lengths L4 and L5 of arc OM and arc ON: The lengths of arc OM and arc ON can be calculated by the central angle θ, which is the angle between point O and point M; First, we need to determine the vectors P2O and P2M respectively: Where (x o ,y o ) are the coordinates of point O; The angle θ can be calculated using the dot product formula: in: therefore: The formula for arc length is: Arc length = R·θ, the lengths L4 and L5 of arc OM and arc ON can be calculated as follows:

[0014] Furthermore, according to the outlet winding speed V1 and the arc length L4, the time t4 required for the sewing mouth to reach the first roller after passing through the pressure roller is calculated, and this time is recorded as the descending time of the outlet unloading trolley as T5; T5=t4+T4 in: V1: linear velocity of the exit section, m / s; L4: length of arc OM, m; t4: The time required for the seam mouth to reach the No. 1 roller of the outlet unloading trolley after passing through the roller of the coiler, s; T4: the time before the seam reaches the coiler roller, s; T5: The time when the coil unloading trolley descends, s.

[0015] Further, in step 5, according to the outlet winding speed V1, arc length L5 and seam width X0, the time t5 required for the seam to pass through the pressure roller and completely pass through the second roller is calculated, and this time is recorded as the rising time of the unloading trolley as T6; T6=t5+T5 in: V1: linear velocity of the exit section, m / s; X0: width of the seam of the strip, m; L5: arc ON length, m; t4: The time required for the seam mouth to pass through the coiler roller and completely pass through the exit unloading trolley 2# roller, s; T5: the time when the unloading trolley descends, s; T6: The rising moment of the unloading trolley, s.

[0016] Compared with the prior art, the present invention has the following advantages: 1. By integrating high-precision first seam mouth sensor, second seam mouth sensor, pinch roller encoder, roll diameter measurement sensor and PLC controller and other automated detection and control technologies, the shortcomings of traditional winding equipment in seam mouth detection and processing are effectively solved.

[0017] 2. The first and second seam sensors can accurately identify the seam position on the strip in real time and transmit the detection signal to the PLC controller. The PLC controller ensures that the protection of each rubber roller group is achieved during the high-speed winding process of the export production line according to the seam position signal and various export data. At the same time, only one cut is made during the winding process to ensure the high efficiency and stability of the rapid winding of the seam, thereby significantly improving production efficiency and product quality.

[0018] 3. Realize the fully automated operation of coiling, cutting and unloading, reduce manual intervention, and improve production efficiency. Improve product quality and reduce production costs. It is suitable for coil production lines in aluminum processing, steel, papermaking and other industries, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a structural schematic diagram of the fast coiling device of the present invention; Figure 2 It is the △P1P2P3 coiling abstract model diagram of the present invention; Figure 3 is the rectangular coordinate system where △P1P2P3 of the present invention is located; Figure 4 The arc length calculation mathematical model of the present invention; Figure 5 A rectangular coordinate system for calculating arc length of the present invention; In the figure: 1-export pinch roller group 2-export scissors 3-export guide roller group 4-first seam opening sensor 5-second seam opening sensor 6-pressure roller 7-coiler 8-first roller 9-second roller 10-export unloading trolley. DETAILED DESCRIPTION

[0020] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0021] refer to Figure 1 A fast coiling device for an aluminum processing production line based on seam detection comprises an outlet pinch roller group 1, an outlet scissors 2, and an outlet deflection roller group 3 arranged in sequence from back to front along the strip conveying direction, a first seam sensor 4 is arranged above the rear side of the outlet pinch roller group, a second seam sensor 5 is arranged above between the outlet scissors and the outlet deflection roller group, a coiler 7 with an inlet pressure roller 6 is arranged below the front side of the outlet deflection roller group, and an outlet unloading trolley 10 with a first roller 8 and a second roller 9 is arranged below the coiler. A coil diameter measuring sensor is arranged on the coiler; a transmission device and a PLC controller are also arranged.

[0022] The first and second seam mouth detection sensors accurately locate and monitor the seam mouth position and provide it to the production line PLC, thereby automatically controlling the lifting and lowering of the exit pinch roller, coiler pressure roller and exit unloading trolley roller group, so as to protect the seam mouth from damaging the corresponding exit roller group rubber roller when it passes through; at the same time, based on this, using precise seam mouth positioning and integrated production line PLC control system, the actions of various components are coordinated to achieve high efficiency and stability of the high-speed coiling process.

[0023] When shearing the strip, the outlet pinch roller fixes the strip in the correct position through the clamping action of the upper and lower rollers, preventing the strip from deflecting or shaking during the shearing process, ensuring the shearing accuracy. The outlet guide roller group guides the strip from the outlet section of the production line to the coiler smoothly, ensuring that the strip maintains the correct angle and position when entering the coiler, avoiding uneven winding or equipment damage caused by path deviation. The coiler winds the strip into a roll and ensures the precise control of the seam position, ultimately forming a high-quality coil product. When a roll of strip is wound, the outlet unloading trolley moves to the bottom of the coiler to receive the wound strip roll. When a roll of strip is wound, the outlet scissors quickly and accurately cut the strip according to the instructions of the PLC controller to prepare for the next roll. The first and second seam detection sensors detect the seam characteristics (thickness changes) on the strip through optical recognition technology and determine its exact position. During the operation of the strip, the sensor monitors the surface of the strip in real time to ensure that the seam position can be detected in a timely and accurate manner.

[0024] As the central control unit, the PLC controller coordinates the operation of various sensors, tension roller groups, export pinch rollers, coilers, export scissors, unloading carts and other equipment to ensure that all components work together according to the predetermined program. Through the preset control logic, the PLC controller realizes fully automated operations from seam detection, tension adjustment, coiling control to shearing and unloading, reducing manual intervention.

[0025] The transmission device transmits power to the tension roller, pinch roller and coiler through the motor, reducer, coupling and other components to ensure that these devices can operate according to the instructions of the PLC controller. The transmission device cooperates with the encoder and PLC controller to accurately control the speed, direction and start and stop of the roller and coiler to meet the accuracy requirements of the coiling process. The exit coil diameter measurement sensor is used to measure the coil diameter of the coiled material under the machine.

[0026] refer to Figures 1 to 5 A method for realizing rapid coiling of an aluminum processing production line based on seam detection includes a rapid coiling device for an aluminum processing production line based on seam detection. The method measures the seam width and the distance between various devices in the exit section respectively, calculates the length from the exit guide roller group to the coiler pressure roller, and the length from the coiler pressure roller to the first roller and the second roller of the exit unloading trolley, which vary according to different coiling diameters; calculates the moment when each key action is detected by the first seam sensor by controlling the exit start acceleration and the exit speed, and controls the action of the exit section equipment during the entire high-speed coiling process at the exit.

[0027] Specifically, the steps include: Step 1: Use the first seam mouth sensor installed at the key position of the aluminum strip path to detect the seam mouth position in real time, send the seam mouth position signal to the PLC controller and record this moment as zero time T0; when the PLC recognizes the seam mouth signal moment, collect the seam mouth width X0, the speed V1 of the strip outlet segment line and the distance L1 from the installation position of the first seam mouth sensor to the outlet pinch roller group, calculate the moment T1 when the seam mouth arrives at the outlet pinch roller group, at this time, the PLC controls the outlet pinch roller group to lift and let the seam mouth and a strip with a length of X1 after the seam mouth (there is a strip after the seam mouth (referred to as the tail) to ensure that there will be no tail lift phenomenon during rapid winding, and this strip length is recorded as X1) pass through the outlet scissors; when the strip X1 passes, it is calculated that this time is the shearing moment T2, the outlet stops, the outlet pinch roller is pressed down, and the outlet scissors perform the shearing operation. The calculation formula is as follows: T0=0 in: T0: the time when the exit fast coiling program starts, s; X0: width of the seam of the strip, m; V1: linear velocity of the exit section, m / s; L1: distance from the installation position of the sewing mouth sensor to the pinch roller before shearing, m; T1: the moment when the seam mouth reaches the pinch roller before shearing, s; X1: Length of strip reserved for coiling after the seam, m; T2: The moment when the export scissors cut the tail of the belt, s.

[0028] Step 2: Install the second seam mouth sensor at the seam mouth stop position mentioned in step 1, and use the second seam mouth sensor to reposition the seam mouth to ensure that the seam mouth is truly stopped in place. After the shearing is completed, the exit section speeds up again to the exit section linear speed V1. The strip acceleration in this process is set to a0 (the exit start acceleration a0 is set by the exit transmission). Then, the time t1 required for the strip to complete shearing and speed up can be calculated, and the distance required for speed up is X3; the distance from the second seam mouth sensor to the exit guide roller group is L2, and the moment when the seam mouth arrives at the exit guide roller group is recorded as T3. At this time, the upper roller of the exit guide roller group is lifted, and the time of lifting and falling is the time t2 when the seam mouth passes through the exit guide roller group; the calculation formula is as follows: in: a0: Exit start acceleration, m / s 2 ; t1: The time required for the strip to be sheared and speeded up, s; X3: The distance the strip moves before the exit starts to speed up, m; L2: The distance from the 2# seam outlet sensor to the exit guide roller group, m; T3: the moment when the seam mouth reaches the exit guide roller group, s; t2: The time it takes for the seam mouth to pass through the exit guide roller group, s.

[0029] Step 3: According to the distance L3 from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the exit guide roller group and the exit speed V1, calculate the time t3 from the seam mouth from the exit guide roller group to the coiler pressure roller; the time before the seam mouth arrives at the coiler pressure roller is recorded as T4, at which time the coiler pressure roller is lifted to avoid being scratched by the seam mouth; wherein, T4=t3+T3 In the above formula, L3: the distance from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the exit guide roller group, m; t3: The time from the exit guide roller group to the coiler pressure roller of the seam mouth, s; T4: The time before the seam mouth reaches the coiler roller, s.

[0030] Specifically, see Figure 2, assume that the coiler roller rotates around the center point P1 (the roller diameter can be ignored compared to this export coiling model, and the roller rotation axis length is set to r), the coiler center point is point P2, and the contact point of the upper and lower rollers of the export guide roller group is P3, which can be measured by P1P2=A, P2P3=B, P1P3=C. Due to the different lengths of different strips (that is, the coil diameter R of the downstream coil is different, which can be sent to the production line PLC by the export coil diameter sensor), the position of the contact point O between the roller and the aluminum coil is variable, so it is necessary to derive a set of distance formulas P3O=L3 for calculation. Abstract this export coiling model as a △P1P2P3 and establish the corresponding rectangular coordinate system (such as Figure 3 As shown), calculate the distance L3 from a moving point O in the triangle to the contact point P3 of the upper and lower rollers of the outlet guide roller group.

[0031] in, A: The straight-line distance from the center point P1 of the coiler roller to the center point P2 of the coiler, m; B: The straight-line distance from the center point P2 of the coiler to the contact point P3 of the upper and lower rollers of the outlet guide roller, m; C: The straight-line distance from the center point P1 of the coiler roller to the contact point P3 of the upper and lower rollers of the outlet guide roller, m.

[0032] The L3 calculation formula is derived as follows: Set P1 at the origin (0, 0), P2 at (A, 0), and P3's coordinates to (x, y), satisfying: From the above equation, we can solve: Set the coordinates of point O to (x0, y0), satisfying: The above equation can be solved to get: Get the distance L3 from the exit guide roller group to the coiler roller: The simplified calculation formula of the distance L3 from the outlet guide roller group to the coiler roller is:

[0033] Step 4: Calculate the time when the exit unloading trolley descends and record T5. When the seam mouth passes through the roller of the coiler, in order to protect the first and second rollers of the exit unloading trolley, it is necessary to meet the requirement that when the seam mouth reaches the first roller, the trolley descends a certain distance so that the first and second rollers will not be scratched by the seam mouth. Since a sufficient length of the tail is reserved in step 1, the exit guide roller and the roller of the coiler press the tail of the belt, so even if the trolley leaves the coil, there will be no tail swinging.

[0034] The principle is the same as in step 3. The radius R of the coiled material is variable. Therefore, the distances L4 and L5 from the contact point O between the coiler roller and the aluminum coil to the contact points M and N between the first and second rollers of the exit unloading trolley and the aluminum coil also vary with the coil radius R. A new coordinate system needs to be established to construct a distance formula that can derive the distance from the contact point O between the coiler roller and the aluminum coil to the contact points M and N between the first and second rollers of the exit unloading trolley and the aluminum coil (i.e., the length of the arc OM and the arc ON) for calculation by the PLC module.

[0035] Specifically, the coiler roller, the coil and the first and second rollers of the exit unloading trolley are simplified into a mathematical model (such as Figure 4 shown); According to this model, the corresponding rectangular coordinate system shown in the following figure can be constructed with point P2 as the coordinate origin (such as Figure 5 The calculation formulas for the arc lengths L4 and L5 of arc OM and arc ON are as follows: 1) Determine the equations of circle P2 and circle P1: The center of circle P2 is at the origin (0,0), and the equation is: x 2 +y 2 =R 2 The center of circle P1 is at point P1(a,b), and its equation is: (x) 2 +(yb) 2 =r 2 2) Determine the coordinates of the intersection point O: The intersection point O is the intersection of circle P2 and circle P1. By combining the equations of the two circles in step 1), we can solve the coordinates of the intersection point O (x o ,y o ). Note: This is a straight line equation, which represents the straight line where the intersection of the two circles lies. By solving the intersection of this straight line and circle P2, the coordinates of point O can be obtained.

[0037] 3) Determine the coordinates of point M and point N: Point M(X M , YM ) and point N(-X M , Y M ) on circle P2; 4) Calculate the lengths L4 and L5 of arc OM and arc ON: The lengths of arc OM and arc ON can be calculated by the center angle θ, which is the angle between point O and point M (point N).

[0038] First, we need to determine the vectors P2O and P2M respectively: Where (x o ,y o ) are the coordinates of point O.

[0039] The angle θ can be calculated using the dot product formula: in: therefore: The formula for arc length is: Arc length = R·θ The lengths L4 and L5 of arc OM and arc ON can be calculated as follows:

[0040] Then, according to the outlet coiling speed V1 and the arc OM length L4, the time t4 required for the seam mouth to reach the first roller of the outlet unloading trolley after passing through the coiler roller can be calculated, and the time when the outlet unloading trolley descends is recorded as T5; T5=t4+T4 in: V1: linear velocity of the exit section, m / s; L4: length of arc OM, m; t4: The time required for the seam mouth to reach the No. 1 roller of the outlet unloading trolley after passing through the roller of the coiler, s; T4: the time before the seam reaches the coiler roller, s; T5: The time when the coil unloading trolley descends, s.

[0041] Step 5: Calculate the rising moment T6 of the exit unloading trolley. When the seam mouth passes through the second roller smoothly, the exit unloading trolley rises again to support the coil that is about to be coiled, completing the entire exit rapid coiling process.

[0042] Specifically, according to the outlet coiling speed V1, the arc ON length L5 and the seam width X0, the time t5 required for the seam to pass through the coiler roller and completely pass through the outlet unloading trolley 2# roller can be calculated, and the unloading trolley rising time is recorded as T6; T6=t5+T5 in: V1: linear velocity of the exit section, m / s; X0: width of the seam of the strip, m; L5: arc ON length, m; t4: The time required for the seam mouth to pass through the coiler roller and completely pass through the exit unloading trolley 2# roller, s; T5: the time when the unloading trolley descends, s; T6: The rising moment of the unloading trolley, s.

[0043] Through the implementation of the above steps, using high-precision seam sensor, export coil diameter measurement sensor, export control PLC, logic calculation PLC, export transmission control device and export scissors and other equipment, as well as the time axis, calculation formula and abstract model established in the above steps, the export fast winding function can be realized, and the rubber roller groups in the export section can be protected from being scratched by the strip with the seam during high-speed winding.

[0044] The above is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, designing different forms of aluminum processing production line fast winding devices and methods based on seam detection does not require creative labor. Without departing from the principles and spirit of the present invention, all equal changes, modifications, substitutions and variations made within the scope of the patent application of the present invention should be covered by the scope of the present invention.

Claims

1. A fast coiling device for an aluminum processing production line based on seam detection, comprising an outlet pinch roller group, an outlet scissors, and an outlet deflection roller group arranged in sequence from back to front along the strip conveying direction, characterized in that: A first seaming mouth sensor is arranged above the rear side of the exit pinch roller group, a second seaming mouth sensor is arranged above between the exit scissors and the exit guide roller group, an inlet winder with a pressure roller is arranged below the front side of the exit guide roller group, and an exit unloading trolley with a first roller and a second roller is arranged at the lower side of the winder.

2. The rapid coiling device for aluminum processing production line based on seam detection according to claim 1 is characterized in that: The coiling machine is provided with a coil diameter measuring sensor and a PLC controller.

3. A method for realizing rapid coiling of an aluminum processing production line based on seam detection, comprising the rapid coiling device of an aluminum processing production line based on seam detection according to claim 1 or 2, characterized in that: The following steps are involved: Step 1: Real-time detection of the position of the seam opening and sending the seam opening position signal to the PLC controller and recording the moment as zero time T0, collecting the seam opening width X0, the speed V1 of the strip exit segment line and the distance L1 from the installation position of the first seam opening sensor to the exit pinch roller group; calculating the moment T1 when the seam opening arrives at the exit pinch roller group, at which time the exit pinch roller group is controlled to lift up and allow the seam opening and a strip with a length of X1 behind the seam opening to pass through the exit scissors, when the strip X1 passes through, calculating this moment as the shearing moment T2, the exit stops, the exit pinch roller is pressed down, and the exit scissors perform the shearing operation; Step 2: The second seam mouth sensor is used to perform secondary positioning of the seam mouth, and the time t1 required for the strip to complete shearing to complete speed increase is calculated. The distance required for speed increase is X3; the distance from the second seam mouth sensor to the exit guide roller group is L2, and the time when the seam mouth arrives at the exit guide roller group is recorded as T3. At this time, the upper roller of the exit guide roller group is lifted, and the time of lifting and falling is the time t2 when the seam mouth passes through the exit guide roller group; Step 3: According to the distance L3 from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the outlet guide roller group and the outlet speed V1, calculate the time t3 from the seam mouth from the outlet guide roller group to the coiler pressure roller, and record the time before the seam mouth reaches the coiler pressure roller as T4, at which time the coiler pressure roller is lifted; Step 4: Calculate the time when the exit unloading trolley descends and record it as T5. After the seam mouth passes through the pressure roller of the coiler, when the seam mouth arrives in front of the first roller, the exit unloading trolley descends a certain distance so that the first roller and the second roller will not be scratched by the seam mouth; Step 5: Calculate the rising moment T6 of the exit unloading trolley. When the seam mouth passes through the second roller smoothly, the exit unloading trolley rises again to support the coil that is about to be coiled, completing the entire exit rapid coiling process.

4. The rapid coiling device for aluminum processing production line based on seam detection according to claim 3 is characterized in that: In step one, T0＝0 in: T0: the time when the exit fast coiling program starts, s; X0: width of the seam of the strip, m; V1: linear velocity of the exit section, m / s; L1: The distance from the installation position of the first sewing port sensor to the outlet pinch roller group, m; T1: the moment when the sewing mouth reaches the outlet pinch roller group, s; X1: The length of the strip reserved for coiling after the seam, m; T2: The moment when the export scissors cut the tail of the belt, s.

5. The rapid coiling device for aluminum processing production line based on seam detection according to claim 3 or 4, characterized in that: In step 2, in: a0: Exit start acceleration, m / s 2 ; t1: The time required for the strip to be sheared and speeded up, s; X3: The distance from the start of the exit to the completion of the speed increase of the strip, m; L2: The distance from the second seam outlet sensor to the exit guide roller group, m; T3: The moment when the seam mouth reaches the exit guide roller group, s.

6. The rapid coiling device for aluminum processing production line based on seam detection according to claim 3 is characterized in that, in step 3, T4=t3+T3 in: L3: The distance from the contact point between the pressure roller and the aluminum coil to the contact point between the upper and lower rollers of the outlet guide roller group, m; t3: The time from the exit guide roller group to the coiler pressure roller of the seam mouth, s; T4: The time before the seam mouth reaches the coiler roller, s.

7. The rapid coiling device for aluminum processing production line based on seam detection according to claim 6 is characterized in that the L3 calculation formula is derived as follows: Assume that the pressure roller of the coiler rotates around the center point P1, the length of the rotation axis of the pressure roller is set to r, the center point of the coiler is point P2, and the contact point of the upper and lower rollers of the outlet guide roller group is P3. By measuring P1P2=A, P2P3=B, P1P3=C; since the position of the contact point O between the pressure roller and the aluminum coil is variable, this outlet coiling model is abstracted as a △P1P2P3 and a corresponding rectangular coordinate system is established to obtain the distance L3 from a moving point O in the triangle to the contact point P3 of the upper and lower rollers of the outlet guide roller group; Set P1 at the origin (0, 0), P2 at (A, 0), and P3's coordinates to (x, y), satisfying: From the above equation, we can solve: Set the coordinates of point O to (x0, y0), satisfying: The above equation can be solved to get: Get the distance L3 from the exit guide roller group to the coiler roller: The simplified calculation formula of the distance L3 from the outlet guide roller group to the coiler roller is: in, r: roller rotation axis length, m; A: The straight-line distance from the center point P1 of the roller axis to the center point P2 of the coiler, m; B: The straight-line distance from the center point P2 of the coiler to the contact point P3 of the upper and lower rollers of the outlet guide roller group, m; C: The straight-line distance from the center point P1 of the roller axis to the contact point P3 of the upper and lower rollers of the outlet guide roller group, m; R: The diameter of the roll off the machine, m.

8. The rapid coiling device of the aluminum processing production line based on seam detection according to claim 7 is characterized in that, in step 4, since the radius R of the coiled material is variable, the distance L4 from the contact point O between the coiler pressure roller and the aluminum coil to the contact point M between the first roller and the aluminum coil, and the distance L5 from the contact point O between the coiler pressure roller and the aluminum coil to the contact point N between the second roller and the aluminum coil also change with the coil radius R; by establishing a coordinate system to obtain the length L4 of the arc OM and the length L5 of the arc ON, the calculation formula is derived as follows: 1) Determine the equations of circle P2 and circle P1: The center of circle P2 is at the origin (0,0), and the equation is: x 2 +y 2 =R 2 ; The center of circle P1 is at point P1(a,b), and its equation is: (x-a) 2 +(y-b) 2 =r 2 ; 2) Determine the coordinates of the intersection point O: The intersection point O is the intersection of circle P2 and circle P1. By combining the equations of the two circles in step 1), we can solve the coordinates of the intersection point O (x o ,y o ). 3) Determine the coordinates of point M and point N: Point M(X M , Y M ) and point N(-X M , Y M ) on circle P2, 4) Calculate the lengths L4 and L5 of arc OM and arc ON: The lengths of arc OM and arc ON can be calculated by the central angle θ, which is the angle between point O and point M; First, we need to determine the vectors P2O and P2M respectively: Where (x o ,y o ) are the coordinates of point O; The angle θ can be calculated using the dot product formula: in: therefore: The formula for arc length is: Arc length = R·θ, The lengths L4 and L5 of arc OM and arc ON can be calculated as follows:

9. The fast coiling device for aluminum processing production line based on seam detection according to claim 8 is characterized in that, according to the outlet coiling speed V1 and the arc length L4, the time t4 required for the seam to reach the first roller after passing through the pressure roller is calculated, and this time is recorded as the descending time of the outlet unloading trolley as T5; T5=t4+T4where: V1: linear velocity of the exit section, m / s; L4: length of arc OM, m; t4: The time required for the seam mouth to reach the No. 1 roller of the outlet unloading trolley after passing through the roller of the coiler, s; T4: the time before the seam reaches the coiler roller, s; T5: The time when the coil unloading trolley descends, s.

10. The fast coiling device for aluminum processing production line based on seam detection according to claim 8 or 9 is characterized in that, in step 5, according to the outlet coiling speed V1, arc length L5 and seam width X0, the time t5 required for the seam to pass through the pressure roller and completely pass through the second roller is calculated, and this time is recorded as the rising time of the unloading trolley as T6; T6=t5+T5 in: V1: linear velocity of the exit section, m / s; X0: width of the seam of the strip, m; L5: arc ON length, m; t4: The time required for the seam mouth to pass through the coiler roller and completely pass through the exit unloading trolley 2# roller, s; T5: the time when the unloading trolley descends, s; T6: The rising moment of the unloading trolley, s.

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