CN108227478B - Method and system for stacking small rubber sheets into tire tread - Google Patents
Method and system for stacking small rubber sheets into tire tread Download PDFInfo
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- CN108227478B CN108227478B CN201711385819.4A CN201711385819A CN108227478B CN 108227478 B CN108227478 B CN 108227478B CN 201711385819 A CN201711385819 A CN 201711385819A CN 108227478 B CN108227478 B CN 108227478B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D5/00—Control of dimensions of material
- G05D5/04—Control of dimensions of material of the size of items, e.g. of particles
- G05D5/06—Control of dimensions of material of the size of items, e.g. of particles characterised by the use of electric means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15039—Display of reference, set value, of measured, feedback value
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Abstract
The invention provides a method and a system for stacking small rubber sheets into a tire tread, wherein the method comprises the following steps: the computer decomposes the tread section outline of the tire to be stacked according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposed region information; the computer determines stacking track information of a current decomposition area of the laminating device and moving speed information of the current decomposition area according to decomposition area information of the current stacked film fed back by the laminating device; and the laminating device is used for carrying out film stacking on the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area. It also relates to a system comprising: computer, laminating device. The invention can accurately determine the decomposition area and stack according to the track, thereby greatly improving the stacking quality and simultaneously improving the quality of the tire.
Description
Technical Field
The invention belongs to the field of tire manufacturing, and particularly relates to a method and a system for stacking small rubber sheets into a tire tread.
Background
The tread is an important component of a tire and its stability directly affects the performance and life of the tire. Most of the existing tread stacking and forming technologies adopt an open-loop control mode, and the accuracy and stability of the open-loop control are completely determined by a control model and a control algorithm, so that most of the manufactured tire treads have large errors and low accuracy.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the tire tread manufactured in the prior art has larger error and low precision.
To solve the above technical problem, the present invention provides a method of stacking small rubber sheets into a tire tread, the method comprising:
s1, decomposing the tread section profile of the tire to be stacked by the computer according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposed region information;
s2, the computer determines the stacking track information of the current decomposition area of the laminating device and the moving speed information of the current decomposition area according to the decomposition area information of the current stacked film fed back by the laminating device;
and S3, the laminating device stacks the rubber sheets of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and repeats the steps S2-S3 until all the decomposition areas are stacked, and then the process is finished.
The invention has the beneficial effects that: the decomposition areas of the tires to be stacked are calculated firstly, then the stacking track information and the moving speed information of the attaching device can be determined according to the decomposition areas, and then the tires can be stacked on the determined stacking tracks.
Further, in S1, the computer decomposes the tread cross-sectional profile of the tire to be stacked according to the input shape parameters of the tire to be stacked, and obtains a plurality of decomposed region information, which specifically includes:
the computer records each height change point on the tread cross-sectional profile of the tire to be stacked as Y1, Y2.. Yn in a plane coordinate system according to the input shape parameters of the tire to be stacked, and the X axis corresponding to each height change point is X1, X2.. Xn, so that the tread cross-sectional profile can be decomposed into a decomposition area consisting of four points of (X (n-1),0), (X (n-1), Y (n-1)), (Xn, Yn), (Xn,0), wherein the Y axis represents the height of the tread cross-sectional profile.
Further, the computer in S2 determines, according to the information of the decomposition area where the current stacked film is fed back by the sticking apparatus, the stacking trajectory information of the current decomposition area of the sticking apparatus and the moving speed information of the current decomposition area, which specifically include:
s21, the computer determines the coordinate position information of the current stacked film on the X axis of the plane coordinate system according to the axial position information of the current stacked film fed back by the laminating device;
s22, the computer determines the decomposition area information of the current stacked film according to the coordinate position information of the current stacked film on the X axis of the plane coordinate system, and determines the number m information of the film layers to be stacked in the decomposition area of the current stacked film according to the decomposition area information of the current stacked film;
s23, the computer determines the film volume v information to be stacked according to the film layer number m information, wherein the formula for calculating the film volume v is:
v 2 x pi ((m-1) r +1 Th +2 Th + (m-1) Th) S, where m is the number of film layers, rr is the radius of the forming drum, Th is the thickness of the film, and S is the cross-sectional area of the film;
s24, the computer determines the stacking track information of the current decomposition area and the moving speed information of the current decomposition area of the laminating device according to the film volume v information, wherein the formula for calculating the moving speed S information is as follows:
s25, repeating steps S21-S24 until all the decomposition region information is calculated, and ending.
Further, in S3, the applying device performs film stacking on the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, including:
s31, when the laminating device stacks the films at the start position, the laminating device performs a first film stacking compensation for the tire to be stacked;
s32, after the first film stacking compensation is completed, the laminating device stacks the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area;
s33, when the laminating device is in the end position to stack the films, the laminating device end position performs a second film stack compensation to form a complete tire.
Further, when the laminating device stacks the films at the start position in the S31, the laminating device performs a first film stack compensation on the tire to be stacked, which includes:
s311, determining the thickness of the first film stacking compensation according to the coordinate position of the starting position on the X axis of the plane coordinate system;
s312, determining the length l of the film which is subjected to stacking compensation according to the thickness of the first film stacking compensation;
s313, determining compensation time according to the length of the stacked compensated films;
and S314, according to the compensation time, the attaching device performs first film stacking compensation on the tire to be stacked.
Further, the S22 further includes:
and when the current stacked film is positioned between two adjacent decomposition areas, determining the number m information of the film layers of the current stacked film which need to be stacked on the two adjacent decomposition areas respectively.
Further, the calculation formula of the stack-compensated film length l is:
l＝2*π*((m-1)*r+1*Th+2*Th+..+(m-1)*Th)；
the calculation formula of the compensation time is l-s 1 t;
where s1 is the film speed, t is the compensation time, Th is the film thickness, l is the compensated film length, and r is the building drum radius.
Further, the S32 includes: and when the tire to be stacked is an oblique tire, the laminating device stacks the film of the oblique tire along the axial direction of the oblique tire according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area.
Further, the S32 further includes:
when the tire to be stacked is a radial tire, the computer fits the contour of a forming drum of the radial tire into multi-section circular arc curve information;
the computer determines rotation speed information of the fitting device on the arc curve information, axial movement speed information of the building drum along the radial tire and radial movement speed information of the building drum along the radial tire according to the arc curve information of the fitting device and the movement speed information of the fitting device;
and the laminating device is used for carrying out film stacking on the radial tire according to the rotation speed information, the axial movement speed information of the forming drum along the radial tire and the radial movement speed information.
A system of the present invention for stacking strips of film into a tire tread, the system comprising: a computer, a laminating device;
the computer is used for decomposing the tread section profile of the tire to be stacked according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposition area information;
the film splicing device is used for determining the splicing track information of the current splicing area of the splicing device and the moving speed information of the current splicing area according to the splicing area information of the current splicing film fed back by the splicing device;
and the laminating device is used for stacking the films of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and feeding back the decomposition area information of the current stacked film.
The invention has the beneficial effects that: the decomposition areas of the tires to be stacked are calculated firstly, then the stacking track information and the moving speed information of the attaching device can be determined according to the decomposition areas, and then the tires can be stacked on the determined stacking tracks.
Drawings
FIG. 1 is a flow chart of a method of example 1 for stacking strips of film into a tire tread;
FIG. 2 is a schematic view of a plane exploded area of a tire according to example 1;
FIG. 3 is a schematic view of a plane exploded area of a tire according to example 2;
FIG. 4 is a schematic view of the stack compensation of a tire according to example 4;
FIG. 5 is a schematic view showing the stacking of bias tires in example 8;
FIG. 6 is a schematic view of a radial tire stacked in example 9;
FIG. 7 is a schematic view of a system for stacking strips of film into a tire tread according to example 10;
FIG. 8 is a schematic view of a system for stacking strips of film into a tire tread according to example 11.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, embodiment 1 of the present invention provides a method of stacking strips of rubber into a tire tread, the method comprising:
s1, decomposing the tread section profile of the tire to be stacked by the computer according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposed region information;
s2, the computer determines the stacking track information of the current decomposition area of the laminating device and the moving speed information of the current decomposition area according to the decomposition area information of the current stacked film fed back by the laminating device;
and S3, the laminating device stacks the rubber sheets of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and repeats the steps S2-S3 until all the decomposition areas are stacked, and then the process is finished.
It is understood that some tire shape parameters, such as height, size, diameter, material, etc. of the tire, are input into the computer. From these input shape parameters, the tread cross-sectional profile of the tire to be stacked is decomposed to obtain information on a plurality of decomposed regions, as shown in fig. 2, some shapes in the respective decomposed regions. From these pieces of decomposed region information, stacking trajectory information and moving speed information of the bonding apparatus can be determined, such as: in the decomposition area 1, the stacking trajectory of the bonding devices and the moving speed in the decomposition area, and then the bonding devices are stacked according to the stacking trajectory in the decomposition area 1, while the bonding devices are also moved according to the moving speed in the decomposition area 1. This is not done until all the decomposition areas have been stacked.
In addition, on the basis of this embodiment 1, a width measuring sensor may be further installed, and the width measuring sensor feeds back the width of the small film, for example: in current laminating device, this laminating device can feed back laminating information after having laminated current film and give and survey wide sensor, should survey wide sensor and know the width of current little film according to the feedback in time, then use the width of little film of modified PID algorithm control next time of carrying out extruder and calender, can in time guarantee like this that the sectional area of film is stable.
Optionally, in another embodiment 2, in the S1, the computer decomposes the tread cross-sectional profile of the tire to be stacked according to the input shape parameter of the tire to be stacked, so as to obtain a plurality of decomposed region information, which specifically includes:
the computer records each height change point on the tread cross-sectional profile of the tire to be stacked as Y1, Y2.. Yn in a plane coordinate system according to the input shape parameters of the tire to be stacked, and the X axis corresponding to each height change point is X1, X2.. Xn, so that the tread cross-sectional profile can be decomposed into a decomposition area consisting of four points of (X (n-1),0), (X (n-1), Y (n-1)), (Xn, Yn), (Xn,0), wherein the Y axis represents the height of the tread cross-sectional profile.
It is understood that, as shown in fig. 3, in this embodiment 2, the tread cross-sectional profile of the tire to be stacked is taken as a plane coordinate system, each height change point in each divided region is denoted as Y1, Y2.. Yn, and the X axis corresponding to each height change point is X1, X2.. Xn, and the tread cross-sectional profile can be divided into the plurality of divided regions composed of four points of (X (n-1),0), (X (n-1), Y (n-1)), (Xn, Yn), (Xn,0), where the Y axis represents the height of the tread cross-sectional profile. Therefore, the moving track points in each area can be clearly known, and the film can be accurately attached according to the track points in the subsequent process.
Optionally, in another embodiment 3, in the step S2, the computer determines, according to the decomposition area information of the current stacked film fed back by the sticking apparatus, stacking track information of the current decomposition area of the sticking apparatus and moving speed information of the current decomposition area, which specifically includes:
s21, the computer determines the coordinate position information of the current stacked film on the X axis of the plane coordinate system according to the axial position information of the current stacked film fed back by the laminating device;
s22, the computer determines the decomposition area information of the current stacked film according to the coordinate position information of the current stacked film on the X axis of the plane coordinate system, and determines the number m information of the film layers to be stacked in the decomposition area of the current stacked film according to the decomposition area information of the current stacked film;
s23, the computer determines the film volume v information to be stacked according to the film layer number m information, wherein the formula for calculating the film volume v is:
v 2 x pi ((m-1) r +1 Th +2 Th + (m-1) Th) S, where m is the number of film layers, rr is the radius of the forming drum, Th is the thickness of the film, and S is the cross-sectional area of the film;
s24, the computer determines the stacking track information of the current decomposition area and the moving speed information of the current decomposition area of the laminating device according to the film volume v information, wherein the formula for calculating the moving speed S information is as follows:
s25, repeating steps S21-S24 until all the decomposition region information is calculated, and ending.
In this embodiment 3, coordinate position information of the current stacked film on the X axis of the plane coordinate system is calculated, and then according to the information of the decomposition area where the current stacked film is located, the information of the number m of film layers that need to be stacked on the decomposition area where the current stacked film is located is determined; such as: the current position of the film stack is in the decomposition area 1, and then the number m information of the number of stacked film layers on this area is calculated because there are places where the stacked films are thin and places where the stacked films are thick, and therefore, the number of stacked film layers per place needs to be determined. In this way, the stacking effect is better.
Alternatively, as shown in fig. 4, in another embodiment 4, in step S3, the applying device performs film stacking on the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, including:
s31, when the laminating device stacks the films at the start position, the laminating device performs a first film stacking compensation for the tire to be stacked;
s32, after the first film stacking compensation is completed, the laminating device stacks the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area;
s33, when the laminating device is in the end position to stack the films, the laminating device end position performs a second film stack compensation to form a complete tire.
It should be noted that, in embodiment 4, which is an embodiment scheme performed on the basis of embodiment 3, when stacking is started, certain stacking compensation needs to be performed, and as shown in fig. 4, stacking compensation needs to be performed at the initial positions of triangles on both sides, and because stacking is not completed according to stacking trajectory information in some places, stacking compensation needs to be performed at the starting and ending positions.
Alternatively, in the step S31 of another embodiment 5, when the laminating device performs film stacking at the start position, the laminating device performs first film stacking compensation on the tire to be stacked, and the method includes:
s311, determining the thickness of the first film stacking compensation according to the coordinate position of the starting position on the X axis of the plane coordinate system;
s312, determining the length l of the film which is subjected to stacking compensation according to the thickness of the first film stacking compensation;
s313, determining compensation time according to the length of the stacked compensated films;
and S314, according to the compensation time, the attaching device performs first film stacking compensation on the tire to be stacked.
It is to be understood that the present embodiment 5 is the stack compensation performed on the basis of the above embodiment 4.
Optionally, in another embodiment 6, the S22 further includes:
and when the current stacked film is positioned between two adjacent decomposition areas, determining the number m information of the film layers of the current stacked film which need to be stacked on the two adjacent decomposition areas respectively.
It should be noted that, this example 6 is an embodiment scheme performed on the basis of the above example 3,
alternatively, in another embodiment 7, the calculation formula of the length l of the film for stack compensation is:
l＝2*π*((m-1)*r+1*Th+2*Th+..+(m-1)*Th)；
the calculation formula of the compensation time is l-s 1 t;
where s1 is the film speed, t is the compensation time, Th is the film thickness, l is the compensated film length, and r is the building drum radius.
Alternatively, as shown in fig. 5, in another embodiment 8, the S32 includes: and when the tire to be stacked is an oblique tire, the laminating device stacks the film of the oblique tire along the axial direction of the oblique tire according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area.
Optionally, as shown in fig. 6, in another embodiment 9, the S32 further includes:
when the tire to be stacked is a radial tire, the computer fits the contour of a forming drum of the radial tire into multi-section circular arc curve information;
the computer determines rotation speed information of the fitting device on the arc curve information, axial movement speed information of the building drum along the radial tire and radial movement speed information of the building drum along the radial tire according to the arc curve information of the fitting device and the movement speed information of the fitting device;
and the laminating device is used for carrying out film stacking on the radial tire according to the rotation speed information, the axial movement speed information of the forming drum along the radial tire and the radial movement speed information.
As shown in fig. 7, the present embodiment 10 provides a system for stacking strips of rubber into a tire tread, the system comprising: a computer, a laminating device;
the computer is used for decomposing the tread section profile of the tire to be stacked according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposition area information;
the film splicing device is used for determining the splicing track information of the current splicing area of the splicing device and the moving speed information of the current splicing area according to the splicing area information of the current splicing film fed back by the splicing device;
and the laminating device is used for stacking the films of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and feeding back the decomposition area information of the current stacked film.
It should be noted that, it should be understood that, some parameters related to the shape of the tire, such as the height, size, diameter, material, etc., of the tire, are input into the computer. From these input shape parameters, the tread cross-sectional profile of the tire to be stacked is decomposed to obtain information on a plurality of decomposed regions, as shown in fig. 2, some shapes in the respective decomposed regions. From these pieces of decomposed region information, stacking trajectory information and moving speed information of the bonding apparatus can be determined, such as: in the decomposition area 1, the stacking trajectory of the bonding devices and the moving speed in the decomposition area, and then the bonding devices are stacked according to the stacking trajectory in the decomposition area 1, while the bonding devices are also moved according to the moving speed in the decomposition area 1. This is not done until all the decomposition areas have been stacked. All the technical features of the above embodiments 1 to 9 can be applied to the system of the present embodiment 10.
In addition, as shown in fig. 8, in example 11 based on this example 10, a PLC controller and a width measuring sensor may be installed, and the width measuring sensor feeds back the width of the small film, for example: in current laminating device, this laminating device can feed back laminating information for surveying wide sensor after having laminated current film, should survey wide sensor and know the width of current little film according to the feedback in time, then the PLC controller can use the width of the little film of modified PID algorithm control film extrusion device extrusion next time according to computer calculation information, can in time guarantee the sectional area of film stable like this.
In all the above embodiments, for detecting a small film width, a double-loop closed-loop modified PID (proportional-integral-derivative) control is performed by detecting the extrusion pressure of the film extruder and the film width; for the way of extruding small films, by detecting the width of the film, an improved PID control is performed.
In addition, three states of starting, stopping and speed change in the stacking process are smoothly accelerated and decelerated through slope generators with different slopes, and small films are prevented from being pulled apart or stacked.
The quality of the tread produced by using the equipment provided by the invention is greatly improved compared with the original process requirement.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A method of stacking strips of rubber into a tire tread, the method comprising:
s1, decomposing the tread section profile of the tire to be stacked by the computer according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposed region information;
s2, the computer determines the stacking track information of the current decomposition area of the laminating device and the moving speed information of the current decomposition area according to the decomposition area information of the current stacked film fed back by the laminating device;
s3, the laminating device stacks the rubber sheets of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and the steps S2-S3 are repeated until all the decomposition areas are stacked, and then the process is finished;
wherein, S2 specifically includes:
s21, the computer determines the coordinate position information of the current stacked film on the X axis of the plane coordinate system according to the axial position information of the current stacked film fed back by the laminating device;
s22, the computer determines the decomposition area information of the current stacked film according to the coordinate position information of the current stacked film on the X axis of the plane coordinate system, and determines the number m information of the film layers to be stacked in the decomposition area of the current stacked film according to the decomposition area information of the current stacked film;
s23, the computer determines the film volume v information to be stacked according to the film layer number m information, wherein the formula for calculating the film volume v is:
v 2 x pi ((m-1) r +1 Th +2 Th + (m-1) Th) S, where m is the number of film layers, r is the radius of the forming drum, Th is the thickness of the film, and S is the cross-sectional area of the film;
s24, the computer determines the stacking track information of the current decomposition area and the moving speed information of the current decomposition area of the laminating device according to the film volume v information, wherein the formula for calculating the moving speed S information is as follows:
s25, repeating steps S21-S24 until all the decomposition region information is calculated, and ending.
2. The method according to claim 1, wherein the computer in S1 decomposes the tread cross-sectional profile of the tire to be stacked according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposed region information, which specifically comprises:
the computer records each height change point on the tread cross-sectional profile of the tire to be stacked as Y1, Y2.. Yn in a plane coordinate system according to the input shape parameters of the tire to be stacked, and the X axis corresponding to each height change point is X1, X2.. Xn, so that the tread cross-sectional profile can be decomposed into a decomposition area consisting of four points of (X (n-1),0), (X (n-1), Y (n-1)), (Xn, Yn), (Xn,0), wherein the Y axis represents the height of the tread cross-sectional profile.
3. The method according to claim 2, wherein the applying device performs film stacking on the tire to be stacked according to the stacking trajectory information of the current decomposition area and the moving speed information of the current decomposition area in S3, including:
s31, when the laminating device stacks the films at the start position, the laminating device performs a first film stacking compensation for the tire to be stacked;
s32, after the first film stacking compensation is completed, the laminating device stacks the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area;
s33, when the laminating device is in the end position to stack the films, the laminating device end position performs a second film stack compensation to form a complete tire.
4. The method according to claim 3, wherein the applying device performs a first film stack compensation on the tire to be stacked while the applying device performs the film stack at the start position in S31, which includes:
s311, determining the thickness of the first film stacking compensation according to the coordinate position of the starting position on the X axis of the plane coordinate system;
s312, determining the length l of the film which is subjected to stacking compensation according to the thickness of the first film stacking compensation;
s313, determining compensation time according to the length of the stacked compensated films;
and S314, according to the compensation time, the attaching device performs first film stacking compensation on the tire to be stacked.
5. The method according to claim 2, wherein the step of S22 further comprises:
and when the current stacked film is positioned between two adjacent decomposition areas, determining the number m information of the film layers of the current stacked film which need to be stacked on the two adjacent decomposition areas respectively.
6. The method according to claim 4, wherein the calculation formula of the stack-compensated film length/is:
l＝2*π*((m-1)*r+1*Th+2*Th+..+(m-1)*Th)；
the calculation formula of the compensation time is l-s 1 t;
where s1 is the film speed, t is the compensation time, Th is the film thickness, l is the compensated film length, and r is the building drum radius.
7. The method according to any one of claims 4-6, wherein said S32 comprises: and when the tire to be stacked is an oblique tire, the laminating device stacks the film of the oblique tire along the axial direction of the oblique tire according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area.
8. The method according to any one of claims 4-6, wherein said S32 further comprises:
when the tire to be stacked is a radial tire, the computer fits the contour of a forming drum of the radial tire into multi-section circular arc curve information;
the computer determines rotation speed information of the fitting device on the arc curve information, axial movement speed information of the building drum along the radial tire and radial movement speed information of the building drum along the radial tire according to the arc curve information of the fitting device and the movement speed information of the fitting device;
and the laminating device is used for carrying out film stacking on the radial tire according to the rotation speed information, the axial movement speed information of the forming drum along the radial tire and the radial movement speed information.
9. A system for stacking strips of film into a tire tread, the system comprising: a computer, a laminating device;
the computer is used for decomposing the tread section profile of the tire to be stacked according to the input shape parameters of the tire to be stacked to obtain a plurality of decomposition area information;
the film splicing device is used for determining the splicing track information of the current splicing area of the splicing device and the moving speed information of the current splicing area according to the splicing area information of the current splicing film fed back by the splicing device;
the laminating device is used for stacking the films of the tire to be stacked according to the stacking track information of the current decomposition area and the moving speed information of the current decomposition area, and feeding back the decomposition area information of the current stacked films;
wherein the computer is specifically configured to:
s21, the computer determines the coordinate position information of the current stacked film on the X axis of the plane coordinate system according to the axial position information of the current stacked film fed back by the laminating device;
s22, the computer determines the decomposition area information of the current stacked film according to the coordinate position information of the current stacked film on the X axis of the plane coordinate system, and determines the number m information of the film layers to be stacked in the decomposition area of the current stacked film according to the decomposition area information of the current stacked film;
s23, the computer determines the film volume v information to be stacked according to the film layer number m information, wherein the formula for calculating the film volume v is:
v 2 x pi ((m-1) r +1 Th +2 Th + (m-1) Th) S, where m is the number of film layers, r is the radius of the forming drum, Th is the thickness of the film, and S is the cross-sectional area of the film;
s24, the computer determines the stacking track information of the current decomposition area and the moving speed information of the current decomposition area of the laminating device according to the film volume v information, wherein the formula for calculating the moving speed S information is as follows:
s25, repeating steps S21-S24 until all the decomposition region information is calculated, and ending.
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