CN115972745A - Digital winding and unwinding control method for multilayer compound machine - Google Patents
Digital winding and unwinding control method for multilayer compound machine Download PDFInfo
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Abstract
A digital winding and unwinding control method for a multilayer compound machine comprises the following steps: (S1) classifying and defining each section of path material belt on the multilayer compound machine; respectively defining a first base material roll and a path material belt, a second base material roll and a path material belt, a third base material roll and a path material belt, a winding material roll and a path material belt on a film running path and a material belt on a material roll of the compound machine according to a compound steel rolling point as a first end point and a starting point on a material roll paper core as a second end point; (S2) determining the length detection and calculation method of each section of material belt to obtain the length of each section of path material belt between a feeding roll of the compound machine and a compound unit at the detection time; and (S3) setting calculation or comparison conditions for digitally controlling winding and unwinding actions. The diameter of each material roll and the length data of each section of path material belt at any time are obtained through detection and calculation, and necessary information is provided for digital winding and unwinding control.
Description
Technical Field
The invention relates to a solvent-free compound machine, in particular to a digital winding and unwinding control method of a multi-layer compound machine.
Background
A solvent-free compound machine is a machine which adopts solvent-free adhesives to compound two or more base materials together. The main composition structure is as follows: the device comprises a first unreeling unit, a coating unit, a second unreeling unit, a composite unit and a reeling unit. The two substrates are compounded through unreeling, coating, compounding and reeling. For example, a three-in-one solvent-free compound machine with CN207657339U is provided with a first wall plate, a second wall plate and a third wall plate in sequence from left to right at the lower end of a machine top, the first wall plate is provided with a first unwinding device, a first coating device and a first unwinding tension device, the second wall plate is provided with a second unwinding device, a second coating device and a second unwinding tension device, the third wall plate is provided with a winding device, a compounding device, a third unwinding device and a third unwinding tension device, the first wall plate, the second wall plate, the third wall plate and the machine top are provided with a plurality of film-running guide rollers, and the three-in-one solvent-free compound machine can complete a solvent-free compound process of three layers of materials at one time. The traditional compound machine cannot measure and calculate the winding diameter and the material length of a winding and unwinding device and the length of a material belt in the path in real time, and cannot carry out various digital controls of the winding and unwinding device, such as automatic and accurate elimination operation of film-penetrating waste, estimation of reasonable winding diameter and the like; optimal control of the shortest remainders of the valuable material belt and digital recording of the joints in the winding material roll cannot be realized.
Disclosure of Invention
The invention aims to solve the technical problem of providing a digital winding and unwinding control method for a multi-layer compound machine, which obtains the diameter of each material roll and the length data of each section of path material belt at any time through detection and calculation and provides necessary information for digital winding and unwinding control.
In order to solve the technical problems, the technical scheme of the invention is as follows: a multi-layer compound machine digital winding and unwinding control method comprises a plurality of unwinding devices, a winding device, a compound device, a coating device and a floating roller device arranged on an unwinding path, and comprises the following steps:
(S1) classifying and defining each section of path material belt on the multilayer compound machine; respectively defining a first base material roll and a path material belt, a second base material roll and a path material belt, a third base material roll and a path material belt, a winding material roll and a path material belt on a film running path and a material roll of a compound machine according to a compound steel roll pressing point as a first end point and a starting point on a material roll paper core as a second end point;
(S2) determining the length detection and calculation method of each section of material belt to obtain the length of each section of path material belt between a material loading roll of the compound machine and a compound unit at the detection time, a first base material roll and the length L of the path material belt 1 Second roll of substrate material and path tape length L 2 Third base material roll and path material belt length L 3 The length LM of the winding material roll and the path material belt;
and (S3) setting calculation or comparison conditions for digitally controlling winding and unwinding actions.
As an improvement, the length detection and calculation method of each section of the material belt comprises the following steps:
L 1 ＝L R1 +L XR1 +L K11 +L T11 +L K12 +L T12 +L K13 (1)
L 2 ＝L R2 +L XR2 +L K21 +L T21 +L K22 +L T22 +L K23 (2)
L 3 ＝L R3 +L XR3 +L K31 +L T31 +L K32 (3)
L M ＝L RM +L XRM +L KM (4)
wherein: l is R1 、L R2 、L R3 、L RM Respectively unwinding a first base material, unwinding a second base material, unwinding a third base material and winding a composite film at the detection time;
L XR1 、L XR2 、L XR3 、L XRM respectively determining the lengths of the material belts of the guide paths of the first substrate unreeling, the second substrate unreeling, the third substrate unreeling and the composite film reeling at the detection moment;
L T11 、L T21 、L T31 the lengths of the material belts of the first section of tension floating roller section in the unwinding paths of the first substrate, the second substrate and the third substrate are respectively set;
L T12 、L T22 the lengths of the material belts of the second section of tension floating roller section in the paths for unwinding the first base material and the second base material respectively;
L K11 the length L of the path material belt is fixed between the first unreeling fixed guide roller and the first floating roller device of the first substrate path K12 A length L of the path material belt is fixed between the first floating roller device of the first base material and the first coating unit K13 The length of the path material belt is fixed between the second floating roll device of the first base material and the composite unit, and the length of the three sections of the material belt is constant and is measured out by a drawing method;
L K21 the length L of the path material belt is fixed from the second unreeling fixed guide roller of the second substrate to the first floating roller device of the path of the second substrate K22 The length of the path material belt is fixed between the first floating roller device of the second base material and the second coating unit K23 The length of the path material belt is fixed between the second floating roller device of the second base material and the composite unit, and the lengths of the three sections of the material belt are constant and are measured out by a drawing method;
L K31 the length L of the path material belt is fixed from a third unreeling fixing guide roller of a third substrate to a first floating roller device of a path of the third substrate K32 The length of the path material belt is fixed between the first floating roller device of the third base material and the composite unit, and the lengths of the two sections of the material belt are not changed and are measured by a drawing method.
L KM The length of the material belt of the path between the composite film from the composite unit to the winding fixed guide roller is constant and is measured by a drawing method.
As an improvement, the method for calculating the length of the material belt contained in the material roll at the detection time of the first substrate unwinding, the second substrate unwinding, the third substrate unwinding and the composite film winding comprises the following steps:
L R1 ＝π(D R1 2 -d A 2 )/4δ F1 (5)
L R2 ＝π(D R2 2 -d B 2 )/4δ F2 (6)
L R3 ＝π(D R3 2 -d C 2 )/4δ F3 (7)
……
L RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G ) (8)
wherein D is R1 、D R2 、D R3 、D RM The diameters of the first substrate unwinding material roll, the second substrate unwinding material roll, the third substrate unwinding material roll and the winding material roll at the starting moment of detection are respectively.
As an improvement, the diameter calculation method of the first substrate unwinding material roll, the second substrate unwinding material roll, the third substrate unwinding material roll and the winding material roll at the detection starting time is as follows:
D R1 ＝(120-2n 12 *△te1)*δ F1 /[120-(n 11 +n 12 )*△te1] (9)
D R2 ＝(120-2n 22 *△te2)*δ F2 /[120-(n 21 +n 22 )*△te2] (10)
D R3 ＝(120-2n 32 *△te3)*δ F3 /[120-(n 31 +n 32 )*△te3] (11)
……
D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem](12)
wherein, the delta te1, the delta te2, the delta te3 and the delta tem are respectively the time of one circle of encoder detection time of the first unreeling motor shaft, the second unreeling motor shaft, the third unreeling motor shaft and the reeling motor shaft;
n 11 、n 12 motor rotating speed values of the first unwinding motor at the head moment and the tail moment of a delta te1 detection time period extracted for the system;
n 21 、n 22 motor rotating speed values of a second unreeling motor at the head and tail moments of a delta te2 detection time period are extracted for the system;
n 31 、n 32 motor rotating speed values of a third unreeling motor extracted for the system at the head and tail moments of a delta te3 detection time period;
n M1 、n M2 detecting motor rotating speed values of the winding motor extracted for the system at the first and last moments of a time period in delta teM;
δ F1 、δ F2 、δ F3 ……Σδ F the thicknesses of the first base material, the second base material, the third base material and the multilayer composite film are respectively;
δ glue 1 、δ Glue 2 ……Σδ G The total thickness of the first layer of glue, the second layer of glue and all the glue layers is respectively.
As an improvement, the method for calculating the length of the material belt of the guide path comprises the following steps:
L XR1 ＝[a 1 2 -0.25(D R1 -d G ) 2 ] 0.5 +π*d G *{90-θ 1 -arcsin[(D R1 -d G )/2*a 1 ]}/360 (13)
L XR2 ＝[a 2 2 -0.25(D R2 -d G ) 2 ] 0.5 +π*d G *{90-θ 2 -arcsin[(D R2 -d G )/2*a 2 ]}/360 (14)
L XR3 ＝[a 3 2 -0.25(D R3 -d G ) 2 ] 0.5 +π*d G *{90-θ 3 -arcsin[(D R3 -d G )/2*a 3 ]}/360 (15)
……
L XRM ＝[a M 2 -0.25(D RM -d G ) 2 ] 0.5 +π*d G *{90-θ M -arcsin[(D R1 -d G )/2*a M ]}/360 (16)
wherein d is G The diameter of the guide roller is fixed for winding and unwinding; a is a 1 、a 2 、a 3 、a M The center distance between the material roll and the guide roller; theta 1 、θ 2 、θ 3 、θ M The included angle between the central connecting line of the guide roller and the material roll and the horizontal line is fixed.
As an improvement, the method for calculating the lengths of the tape strips of the paths of the tension floating roller sections in the unwinding paths of the first base material, the second base material and the third base material comprises the following steps:
L T11 ＝L T110 +△ LT11 (17)
L T21 ＝L T210 +△ LT21 (18)
L T31 ＝L T310 +△ LT31 (19)
L T12 ＝L T120 +△ LT12 (20)
L T22 ＝L T220 +△ LT22 (21)
wherein L is T110 、L T210 、L T310 When swing arms of a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path first floating roller are in the middle positions, the lengths of the tension floating roller section paths are different;
L T120 、L T220 the lengths of the tension floating roller section path material belts are respectively set when swing arms of a second floating roller of the first unreeling path and a second unreeling path are at the middle positions;
△ LT11 、△ LT21 、△ LT31 respectively carrying out path length deflection deviation on a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path tension floating roller section;
△ LT12 、△ LT22 and the material belt path length deflection deviation of the tension floating roller sections of the first unwinding path second floating roller and the second unwinding path second floating roller respectively.
As an improvement, the requirement for fixed-length film material winding length L is known E The control method for carrying out digital fixed-length winding comprises the following steps:
1) According to D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem]Calculating the rolling diameter at the detection moment;
2) According toL RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G )
Calculating the length of the film material on the winding material roll at the detection moment;
3) According to Δ L RM ＝L E -L RM
Calculating the length of the material to be continuously received;
4) According to Δ TE ＝0.001△L RM /V E
Calculating the time required for reaching the winding length, wherein V is E The host running speed is set for the compound machine;
5) When delta is TE When the time is less than 0.5 min, the host starts to decelerate, and the delta N is calculated D ＝△L RM /(πD RM )
6) When Δ N D When the speed is less than 2, the speed of the main machine is reduced to 10 m/min, the absolute value of the encoder is used for controlling the material receiving length, and the formula is as follows:
△N R ＝△L RM *N E /(πD RM )
in the above formula, DELTA N R Number of encoder pulses, N, still required to complete winding to a fixed length E The encoder is rated for the number of pulses and is shut down when the number of pulses is reached.
As an improvement, the control method for automatically and accurately stopping the machine to remove the film-penetrating waste materials when the machine is started for the first time every day or is started for daily material changing comprises the following steps:
1) Leading the material penetrating from each material roll to a composite material roll paper core through respective coating units and a composite unit and fixing the material;
2) Manually controlling to moisten the roller;
3) Automatically starting up according to the waste removing length, drawing the material film which is correctly coated with the glue onto a winding material roll, and controlling a composite steel roller to rotate by the waste removing length and then automatically stopping;
waste removal length calculation:
3.1 Selecting the maximum strip length of the coating steel roller of each substrate to the coiling core path;
MAX{L W1 ,L W2 ,……}
L W1 ＝L T120 +L K13 +L XRM +L KM
L W2 ＝L T220 +L K23 +L XRM +L KM
……
3.2 Length L of reject Wi ＝100+MAX{L W1 ,L W2 ,……}。
4) Cutting off waste material belts on the winding paper core;
as an improvement, the method for recording the roll joint information comprises the following steps:
1) A joint position detecting instrument is arranged in front of the composite steel roller of each substrate path, and the length of each joint position from the material belt path of the composite steel roller is L C1 、L C2 、L C3 ……；
2) When receiving the material area and connecting information, connect the material area length apart from the rolling package core and be: (L) RM +L XRM +L KM +L Ci )；
3) If the length of the coiled material is L Σ The material head on the surface of the material roll is taken as a zero position, and the position L of the Nth material belt joint N Expressed as: l is N ＝L Σ -(L RM +L XRM +L KM +L Ci )。
Compared with the prior art, the invention has the following beneficial effects:
1. according to the path obtained by automatic detection and calculation and the length of a material belt in a material roll, various length values are further calculated, wherein the various length values are used for automatic and accurate shutdown elimination of film-penetrating waste materials, automatic determination of the shortest waste material cutting position during material roll replacement, and winding diameter during unwinding of the material roll during startup, so that a basis is provided for realizing the automatic control of the functions;
2. the position of a material belt joint in a path from a material roll can be detected by a photoelectric detection instrument, the positions of an intermediate joint and a roll changing joint of an unreeled material roll in a reeling material belt are calculated and recorded in the information of the reeling material roll, and necessary information is provided for next digital equipment.
Drawings
Fig. 1 is a schematic diagram of film running of a three-layer compound machine.
Fig. 2 is a schematic view of a dancer device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the embodiment, a three-layer compound machine is taken as an example for description, and as shown in fig. 1, the compound machine includes a first unwinding device, a second unwinding device, a third unwinding device, a winding device, a coating device, and a compound device. The first unwinding device is corresponding to the first substrate material roll 1 and unwinds, and the first unwinding device comprises a first unwinding shaft, a first unwinding driving motor and a first rotary encoder arranged at the shaft end of the first unwinding driving motor. The second unwinding device is corresponding to the second substrate material roll 2 and unwinds, and the second unwinding device comprises a second unwinding shaft, a second unwinding driving motor and a second rotary encoder arranged at the shaft end of the second unwinding driving motor. The third unwinding device is corresponding to the third substrate material roll 3 and unwinds, and the third unwinding device comprises a third unwinding shaft, a third unwinding driving motor and a third rotary encoder arranged at the shaft end of the third unwinding driving motor. The winding device corresponds the complex film material of complex film and rolls up 4, and the winding device includes rolling axle, rolling driving motor and establishes the rolling rotary encoder at rolling driving motor axle head. The coating device comprises a first coating unit 9 for coating a first band of base material and a second coating unit 10 for coating a second band of base material. The compounding device comprises a compounding unit 11 for compounding a first base material belt, a second base material belt and a third base material belt, wherein the compounding unit 11 comprises a compounding steel rod and a compounding rubber roller.
The first unreeling path sequentially comprises a first substrate material roll 1, a first unreeling fixing roller 5, a first unreeling path first floating roller device 12, a first coating unit 9, a first unreeling path second floating roller device 13 and a composite unit 11 from front to back, and further comprises a front guide roller 20 and a rear guide roller 21 of the first unreeling path first floating roller device 12 and a rear guide roller 22 of the first unreeling path second floating roller device 13; the second unreeling path sequentially comprises a second substrate material roll 2, a second unreeling fixing roll 6, a second unreeling path first floating roll device 14, a second coating unit 10, a second unreeling path second floating roll device 15 and a composite unit 11 from front to back, and further comprises a front guide roll 24 and a rear guide roll 23 of the second unreeling path first floating roll device 14 and a rear guide roll 25 of the second unreeling path second floating roll device 15; the third unwinding path sequentially comprises a third substrate material roll 3, a third unwinding fixing roller 7, a third unwinding path first floating roller device 16 and a composite unit 11 from front to back, and further comprises a front guide roller 26 and a rear guide roller 27 of the third unwinding path first floating roller device 16; the winding path sequentially comprises a composite unit 11, a winding fixed roller 8 and a composite film material roll 4 from front to back. Each floating roll device has the same structure and comprises a floating roll swing arm 29, a swing roll 28 arranged at the lower end of the floating roll swing arm 29, a tension floating roll shaft 30 arranged at the upper end of the floating roll swing arm 29 and a digital angular displacement sensor 31 for detecting the angular position of the floating roll shaft. The first unwinding path is provided with a first base material path material belt joint detection instrument 17, the second unwinding path is provided with a second base material path material belt joint detection instrument 18, and the third unwinding path is provided with a third base material path material belt joint detection instrument 19.
The digital winding and unwinding control method of the multilayer compound machine comprises the following steps:
(S1) classifying and defining each section of path material belt on the multilayer compound machine; respectively defining a first base material roll and a path material belt, a second base material roll and a path material belt, a third base material roll and a path material belt, a winding material roll and a path material belt on a film running path and a material belt on a material roll of the compound machine according to a compound steel rolling point as a first end point and a starting point on a material roll paper core as a second end point;
(S2) determining the length detection and calculation method of each section of material belt to obtain the length of each section of path material belt between a material loading roll of the compound machine and a compound unit at the detection time, a first base material roll and the length L of the path material belt 1 Second roll of substrate material and path tape length L 2 Third base material roll and path material strip length L 3 The length LM of the winding material roll and the path material belt;
and (S3) setting calculation or comparison conditions for digitally controlling winding and unwinding actions.
The length detection and calculation method of each section of the material belt comprises the following steps:
L 1 ＝L R1 +L XR1 +L K11 +L T11 +L K12 +L T12 +L K13 (1)
L 2 ＝L R2 +L XR2 +L K21 +L T21 +L K22 +L T22 +L K23 (2)
L 3 ＝L R3 +L XR3 +L K31 +L T31 +L K32 (3)
L M ＝L RM +L XRM +L KM (4)
wherein: l is a radical of an alcohol R1 、L R2 、L R3 、L RM The lengths of material belts contained in the material roll at the moment of detection are respectively the first base material unreeling, the second base material unreeling, the third base material unreeling and the composite film reeling;
L XR1 、L XR2 、L XR3 、L XRM the lengths of the material belts of the guide paths of the first substrate unwinding, the second substrate unwinding, the third substrate unwinding and the composite film winding at the detection moment are L XR1 The length L of the material belt between a first base material roll 1 and a first unreeling fixed roller 5 XR2 The length L of the material belt between the second base material roll 2 and the second unreeling fixing roller 6 XR3 The length L of the material belt between the second base material roll 3 and the third unreeling fixed roller 7 XRM The length of the material belt is from the composite film material roll 4 to the rolling fixed roller 8;
L T11 、L T21 、L T31 the material belt length of the first section of tension floating roll section in the unwinding path of the first substrate, the unwinding path of the second substrate and the unwinding path of the third substrate is L T11 The length L of the material belt between the front guide roller 20 and the rear guide roller 21 of the first floating roller device 12 is the first unreeling path T21 Second unreeling path the first floating roller device 14 is provided with a length L of the material belt between a front guide roller 24 and a rear guide roller 23 T31 Third unwinding path the length of the strip between the front guide roller 26 and the rear guide roller 27 of the first floating roller device 16;
L T12 、L T22 are respectively the firstThe material belt length of the second section of tension floating roller section in the path of substrate unwinding and second substrate unwinding, L T12 The length L of the material belt is between the first coating unit 9 and the rear guide roller 22 of the second floating roller device 13 of the first unreeling path T22 The length of the material belt is between the second coating unit 10 and the rear guide roller 25 of the second floating roller device 15 of the second unreeling path;
L K11 the length of the path material belt is fixed from the first unreeling fixed guide roller 5 to the front guide roller 20 of the first floating roller device 12 of the first substrate path, L K12 The length L of the material belt of the fixed path between the rear guide roller 21 of the first floating roller device of the first substrate and the first coating unit 9 K13 The length of the material belt of a path is fixed from the rear guide roller 22 of the second floating roller device 13 of the first base material to the composite unit 11, and the lengths of the three sections of the material belt are constant and are measured by a drawing method;
L K21 the length of the path material belt is fixed from the second unreeling fixed guide roller 6 of the second substrate to the front guide roller 24 of the first floating roller device 14 of the second substrate path, L K22 The length of the path material belt L is fixed between the rear guide roller 23 of the first floating roller device 14 of the second base material and the second coating unit 10 K23 The length of the material belt of a path is fixed between the rear guide roller 25 of the second floating roller device 15 of the second base material and the composite unit 11, and the lengths of the three sections of the material belt are constant and are measured by a drawing method;
L K31 the length of the path material belt is fixed from the third unreeling fixed guide roller 7 of the third substrate to the front guide roller 26 of the first floating roller device 16 of the third substrate path, L K32 The length of the path material belt is fixed between the rear guide roller 27 of the first floating roller device 16 of the third substrate and the composite unit 11, and the lengths of the two sections of the material belt are constant and are measured by a drawing method.
L KM The length of the strip, which is the length of the path of the composite film from the compounding unit 11 to the take-up stationary guide roll 8, is constant and is measured by plotting.
The method for calculating the length of the material belt contained in the material roll at the detection time of the first substrate unwinding, the second substrate unwinding, the third substrate unwinding and the composite film winding comprises the following steps:
L R1 ＝π(D R1 2 -d A 2 )/4δ F1 (5)
L R2 ＝π(D R2 2 -d B 2 )/4δ F2 (6)
L R3 ＝π(D R3 2 -d C 2 )/4δ F3 (7)
L RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G ) (8)
wherein D is R1 、D R2 、D R3 、D RM The diameters of the first substrate unwinding material roll, the second substrate unwinding material roll, the third substrate unwinding material roll and the winding material roll at the starting moment of detection are respectively.
The diameter calculation method of the first substrate unwinding material roll, the second substrate unwinding material roll, the third substrate unwinding material roll and the winding material roll at the detection starting moment comprises the following steps:
D R1 ＝(120-2n 12 *△te1)*δ F1 /[120-(n 11 +n 12 )*△te1] (9)
D R2 ＝(120-2n 22 *△te2)*δ F2 /[120-(n 21 +n 22 )*△te2] (10)
D R3 ＝(120-2n 32 *△te3)*δ F3 /[120-(n 31 +n 32 )*△te3] (11)
……
D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem] (12)
the encoder detection time of each of the first unreeling motor shaft, the second unreeling motor shaft, the third unreeling motor shaft and the winding motor shaft is the time of rotating for one circle;
n 11 、n 12 the motor rotating speed number of the first unreeling motor extracted for the system at the head and tail moments of the delta te1 detection time periodA value;
n 21 、n 22 motor rotating speed values of the second unreeling motor at the head and tail moments of a delta te2 detection time period extracted for the system;
n 31 、n 32 motor rotating speed values of a third unreeling motor extracted for the system at the head and tail moments of a delta te3 detection time period;
n M1 、n M2 detecting motor rotating speed values of the winding motor extracted for the system at the first and last moments of a time period in delta teM;
δ F1 、δ F2 、δ F3 ……Σδ F the thicknesses of the first base material, the second base material, the third base material and the multilayer composite film are respectively;
δ glue 1 、δ Glue 2 ……Σδ G The total thickness of the first layer of glue, the second layer of glue and all glue layers is respectively.
The method for calculating the lengths of the material belts of the guide paths of the first base material unreeling, the second base material unreeling, the third base material unreeling and the composite film reeling comprises the following steps:
L XR1 ＝[a 1 2 -0.25(D R1 -d G ) 2 ] 0.5 +π*d G *{90-θ 1 -arcsin[(D R1 -d G )/2*a 1 ]}/360 (13)
L XR2 ＝[a 2 2 -0.25(D R2 -d G ) 2 ] 0.5 +π*d G *{90-θ 2 -arcsin[(D R2 -d G )/2*a 2 ]}/360 (14)
L XR3 ＝[a 3 2 -0.25(D R3 -d G ) 2 ] 0.5 +π*d G *{90-θ 3 -arcsin[(D R3 -d G )/2*a 3 ]}/360 (15)
……
L XRM ＝[a M 2 -0.25(D RM -d G ) 2 ] 0.5 +π*d G *{90-θ M -arcsin[(D R1 -d G )/2*a M ]}/360 (16)
wherein, d G The diameter of the guide roller is fixed for winding and unwinding; a is 1 、a 2 、a 3 、a M The center distance between the material roll and the guide roller; theta 1 、θ 2 、θ 3 、θ M The included angle between the center connecting line of the fixed guide roller and the material roll and the horizontal line.
The method for calculating the lengths of the material belts of the paths of the tension floating roller sections in the unwinding paths of the first base material, the unwinding paths of the second base material and the unwinding paths of the third base material comprises the following steps:
L T11 ＝L T110 +△ LT11 (17)
L T21 ＝L T210 +△ LT21 (18)
L T31 ＝L T310 +△ LT31 (19)
L T12 ＝L T120 +△ LT12 (20)
L T22 ＝L T220 +△ LT22 (21)
wherein L is T110 、L T210 、L T310 When swing arms of a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path first floating roller are in the middle positions, the lengths of the tension floating roller section paths are different;
L T120 、L T220 when swing arms of a second floating roller of the first unreeling path and a second unreeling path are in a middle position, the lengths of the tension floating roller sections and the material belts are respectively equal;
△ LT11 、△ LT21 、△ LT31 respectively carrying out path length deflection deviation on a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path tension floating roller section;
△ LT12 、△ LT22 and the material belt path length deflection deviation of the tension floating roller sections of the first unwinding path second floating roller and the second unwinding path second floating roller respectively.
According to the length detection and calculation method of each section of material belt, the length L of the film material which is required to be coiled in fixed length is known E The control method for digital fixed-length winding comprises the following steps:
1) According to D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem]Calculating the rolling diameter at the detection moment;
2) According to L RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G )
Calculating the length of the membrane material on the rolling material roll at the detection moment;
3) According to Δ L RM ＝L E -L RM
Calculating the length of the material to be continuously received;
4) According to Δ TE ＝0.001△L RM /V E
Calculating the time required to reach the winding length, V in the formula E The host running speed is set for the compound machine;
5) When delta is TE When the time is less than 0.5 min, the main engine starts to decelerate, and the delta N is calculated D ＝△L RM /(πD RM )
6) When Δ N D When the speed is less than 2, the speed of the main machine is reduced to 10 m/min, the absolute value of the encoder is used for controlling the material receiving length, and the formula is as follows: delta N R ＝△L RM *N E /(πD RM )
In the above formula, Δ N R Number of encoder pulses still required to complete winding at a fixed length, N E The encoder is rated for the number of pulses and is shut down when the number of pulses is reached.
According to the length detection and calculation method of each section of the material belt, when the machine is started for the first time every day or is started for daily material changing, the control method for automatically and accurately stopping the machine to remove the film-penetrating waste materials comprises the following steps:
1) Leading the material penetrating from each material roll to a composite material roll paper core through respective coating units and a composite unit and fixing the material;
2) Manually controlling to moisten the roller;
3) Automatically starting up according to the waste removing length, drawing the material film which is correctly glued to a winding material roll, and controlling the composite steel roll to automatically stop after the waste removing length is passed;
4) Cutting off waste material belts on the winding paper core;
waste removal length calculation:
3.1 Selecting the maximum strip length of the coating steel roller of each substrate to the coiling core path; MAX { L } W1 ,L W2 ,……}
L W1 ＝L T120 +L K13 +L XRM +L KM
L W2 ＝L T220 +L K23 +L XRM +L KM
……
3.2 Length L of reject Wi ＝100+MAX{L W1 ,L W2 ,……}。
According to the length detection and calculation method of each section of the material belt, the method for recording the material roll joint information comprises the following steps:
1) A joint position detection instrument is arranged in front of the composite steel roller of each base material path, and the distance between each joint position and the material belt path of the composite steel roller is L C1 、L C2 、L C3 ……；
2) When receiving the material area and connecting information, connect the material area length apart from the rolling package core and be: (L) RM +L XRM +L KM +L Ci )；
3) If the length of the rolled material is L Σ The material head on the surface of the material roll is taken as a zero position, and the position L of the Nth material belt joint N Expressed as: l is N ＝L Σ -(L RM +L XRM +L KM +L Ci )。
Claims (9)
1. The utility model provides a digital receipts of multilayer compounding machine unreels control method, multilayer compounding machine includes a plurality of unwinding devices, coiling mechanism, set composite, coating unit and installs the floating roll device in unreeling the route, its characterized in that: the method comprises the following steps:
(S1) classifying and defining each section of path material belt on the multilayer compound machine; respectively defining a first base material roll and a path material belt, a second base material roll and a path material belt, a third base material roll and a path material belt, a winding material roll and a path material belt on a film running path and a material belt on a material roll of the compound machine according to a compound steel rolling point as a first end point and a starting point on a material roll paper core as a second end point;
(S2) determining the length detection and calculation method of each section of material belt to obtain the length of each section of path material belt between a material loading roll of the compound machine and a compound unit at the detection time, a first base material roll and the length L of the path material belt 1 Second base material roll and path tape length L 2 Third base material roll and path material belt length L 3 Length L of the roll and the path strip M ；
And (S3) setting calculation or comparison conditions for digitally controlling winding and unwinding actions.
2. The digital winding and unwinding control method of the multi-layer compound machine as claimed in claim 1, wherein:
L 1 ＝L R1 +L XR1 +L K11 +L T11 +L K12 +L T12 +L K13 (1)
L 2 ＝L R2 +L XR2 +L K21 +L T21 +L K22 +L T22 +L K23 (2)
L 3 ＝L R3 +L XR3 +L K31 +L T31 +L K32 (3)
L M ＝L RM +L XRM +L KM (4)
wherein: l is R1 、L R2 、L R3 、L RM The lengths of material belts contained in the material roll at the moment of detection are respectively the first base material unreeling, the second base material unreeling, the third base material unreeling and the composite film reeling;
L XR1 、L XR2 、L XR3 、L XRM respectively determining the lengths of the material belts of the guide paths of the first base material unreeling, the second base material unreeling, the third base material unreeling and the composite film reeling at the detection moment;
L T11 、L T21 、L T31 the lengths of the material belts of the first section of tension floating roller section in the unwinding paths of the first substrate, the second substrate and the third substrate are respectively set;
L T12 、L T22 the lengths of the material belts of the second section of tension floating roller section in the paths for unwinding the first base material and the second base material respectively;
L K11 the length L of the path material belt is fixed between the first unreeling fixed guide roller and the first floating roller device of the first substrate path K12 The length L of the material belt is fixed between the first floating roller device of the first substrate and the first coating unit K13 The length of the path material belt is fixed between the second floating roller device of the first base material and the composite unit, and the lengths of the three sections of the material belt are not changed and are measured out by a drawing method;
L K21 the length of the path material belt is fixed from a second unreeling fixed guide roller of a second base material to a first floating roller device of a path of the second base material, L K22 The length of the material belt is fixed between the first floating roller device of the second substrate and the second coating unit K23 The length of the path material belt is fixed between the second floating roller device of the second base material and the composite unit, and the lengths of the three sections of the material belt are constant and are measured out by a drawing method;
L K31 the length of the path material belt is fixed from a third unreeling fixed guide roller of a third base material to a first floating roller device of a path of the third base material, L K32 The length of the path material belt is fixed between the first floating roller device of the third base material and the composite unit, and the lengths of the two sections of the material belt are not changed and are measured by a drawing method.
L KM The length of the material belt of the path between the composite film from the composite unit to the winding fixed guide roller is constant and is measured by a drawing method.
3. The digital winding and unwinding control method for the multi-layer compound machine as claimed in claim 2, characterized in that:
L R1 ＝π(D R1 2 -d A 2 )/4δ F1 (5)
L R2 ＝π(D R2 2 -d B 2 )/4δ F2 (6)
L R3 ＝π(D R3 2 -d C 2 )/4δ F3 (7)
……
L RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G ) (8)
wherein D is R1 、D R2 、D R3 、D RM The diameters of the first substrate unwinding material roll, the second substrate unwinding material roll, the third substrate unwinding material roll and the winding material roll at the starting moment of detection are respectively.
4. The digital winding and unwinding control method of the multi-layer compound machine according to claim 3, characterized in that:
D R1 ＝(120-2n 12 *△te1)*δ F1 /[120-(n 11 +n 12 )*△te1] (9)
D R2 ＝(120-2n 22 *△te2)*δ F2 /[120-(n 21 +n 22 )*△te2] (10)
D R3 ＝(120-2n 32 *△te3)*δ F3 /[120-(n 31 +n 32 )*△te3] (11)
……
D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem] (12)
wherein, the delta te1, the delta te2, the delta te3 and the delta tem are respectively the time of one circle of encoder detection time of the first unreeling motor shaft, the second unreeling motor shaft, the third unreeling motor shaft and the reeling motor shaft;
n 11 、n 12 motor rotating speed values of the first unwinding motor at the head moment and the tail moment of a delta te1 detection time period extracted for the system;
n 21 、n 22 motor rotating speed values of a second unreeling motor at the head and tail moments of a delta te2 detection time period are extracted for the system;
n 31 、n 32 motor rotating speed values of a third unreeling motor extracted for the system at the head and tail moments of a delta te3 detection time period;
n M1 、n M2 rolling for system extractionDetecting the motor rotating speed values of the head and tail moments of a time period by the motor in a delta teM;
δ F1 、δ F2 、δ F3 ……Σδ F the thicknesses of the first base material, the second base material, the third base material and the multilayer composite film are respectively;
δ glue 1 、δ Glue 2 ……Σδ G The total thickness of the first layer of glue, the second layer of glue and all the glue layers is respectively.
5. The digital winding and unwinding control method of the multi-layer compound machine as claimed in claim 4, wherein the method comprises the following steps:
L XR1 ＝[a 1 2 -0.25(D R1 -d G ) 2 ] 0.5 +π*d G *{90-θ 1 -arcsin[(D R1 -d G )/2*a 1 ]}/360
(13)
L XR2 ＝[a 2 2 -0.25(D R2 -d G ) 2 ] 0.5 +π*d G *{90-θ 2 -arcsin[(D R2 -d G )/2*a 2 ]}/360
(14)
L XR3 ＝[a 3 2 -0.25(D R3 -d G ) 2 ] 0.5 +π*d G *{90-θ 3 -arcsin[(D R3 -d G )/2*a 3 ]}/360
(15)
……
L XRM ＝[a M 2 -0.25(D RM -d G ) 2 ] 0.5 +π*d G *{90-θ M -arcsin[(D R1 -d G )/2*a M ]}/360
(16)
wherein d is G The diameter of the guide roller is fixed for winding and unwinding; a is 1 、a 2 、a 3 、a M The center distance between the material roll and the guide roller; theta 1 、θ 2 、θ 3 、θ M For fixing the included angle between the central connecting line of the guide roller and the material roll and the horizontal line。
6. The digital winding and unwinding control method of the multi-layer compound machine as claimed in claim 5, wherein:
L T11 ＝L T110 +△ LT11 (17)
L T21 ＝L T210 +△ LT21 (18)
L T31 ＝L T310 +△ LT31 (19)
L T12 ＝L T120 +△ LT12 (20)
L T22 ＝L T220 +△ LT22 (21)
wherein L is T110 、L T210 、L T310 When swing arms of a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path first floating roller are positioned at the middle position, the lengths of the tension floating roller section material belts are respectively equal to the lengths of the tension floating roller sections material belts;
L T120 、L T220 the lengths of the tension floating roller section path material belts are respectively set when swing arms of a second floating roller of the first unreeling path and a second unreeling path are at the middle positions;
△ LT11 、△ LT21 、△ LT31 respectively carrying out path length deflection deviation on a first unwinding path first floating roller, a second unwinding path first floating roller and a third unwinding path tension floating roller section;
△ LT12 、△ LT22 and the material belt path length deflection deviation of the tension floating roller sections of the first unwinding path second floating roller and the second unwinding path second floating roller respectively.
7. The digital winding and unwinding control method for the multi-layer compound machine as claimed in claim 6, wherein the method comprises the following steps: the length L of the film material which is required to be rolled in a fixed length is known E The control method for carrying out digital fixed-length winding comprises the following steps:
(S71) according to D RM ＝(120-2n M2 *△tem)*(Σδ F +Σδ G )/[120-(n M1 +n M2 )*△tem]Calculate the rolling at the detection momentRolling diameter;
(S72) according to L RM ＝π(D RM 2 -d M 2 )/4(Σδ F +Σδ G ) Calculating the length of the film material on the winding material roll at the detection moment;
(S73) according to Δ L RM ＝L E -L RM Calculating the length of the material to be continuously received;
(S74) according to Δ TE ＝0.001△L RM /V E Calculating the time required to reach the winding length, V in the formula E The host running speed is set for the compound machine;
(S75) when Δ TE When the time is less than 0.5 min, the host starts to decelerate, and the delta N is calculated D ＝△L RM /(πD RM )
(S76) when Δ N D When the speed is less than 2, the speed of the main machine is reduced to 10 m/min, the absolute value of the encoder is used for controlling the material receiving length, and the formula is as follows:
△N R ＝△L RM *N E /(πD RM )
in the above formula, DELTA N R Number of encoder pulses, N, still required to complete winding to a fixed length E The encoder is rated for the number of pulses and is shut down when the number of pulses is reached.
8. The digital winding and unwinding control method of the multi-layer compound machine according to claim 6, characterized in that: the control method for automatically and accurately stopping the machine to remove the film-penetrating waste materials when the machine is started for the first time every day or is started for daily material changing comprises the following steps:
(S81) leading the material penetrating of each material roll to a composite material roll paper core through a respective coating unit and a composite unit for fixing;
(S82) manually controlling to perform roll moistening;
(S83) automatically starting up according to the waste removing length, drawing the material film which is correctly glued to a winding material roll, and controlling the composite steel roll to automatically stop after the waste removing length is passed;
waste removal length calculation:
(S831) selecting the maximum strip length of the coating steel roller of each base material to the winding core path;
MAX{L W1 ,L W2 ,……}
L W1 ＝L T120 +L K13 +L XRM +L KM
L W2 ＝L T220 +L K23 +L XRM +L KM
……
(S832) rejecting length L Wi ＝100+MAX{L W1 ,L W2 ,……}。
(S84) cutting off the waste material belt on the winding paper core.
9. The digital winding and unwinding control method for the multi-layer compound machine as claimed in claim 6, wherein the method comprises the following steps: the method for recording the roll joint information comprises the following steps:
(S91) arranging a joint position detection instrument at the front position of the composite steel roller of each base material path, wherein the distance between each joint position and the material belt path of the composite steel roller is L C1 、L C2 、L C3 ……；
(S92) when receiving the material belt joint information, the length of the material belt which is connected to the winding roll core is as follows: (L) RM +L XRM +L KM +L Ci )；
(S93) if the length of the wound material is L Σ The material head on the surface of the material roll is taken as a zero position, and the position L of the Nth material belt joint N Expressed as: l is N ＝L Σ -(L RM +L XRM +L KM +L Ci )。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211466545.2A CN115972745A (en) | 2022-11-22 | 2022-11-22 | Digital winding and unwinding control method for multilayer compound machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211466545.2A CN115972745A (en) | 2022-11-22 | 2022-11-22 | Digital winding and unwinding control method for multilayer compound machine |
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| CN115972745A true CN115972745A (en) | 2023-04-18 |
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