Tire building machine and application template positioning method therefor, and storage medium

Abstract

The present application relates to a tire building machine and an application template positioning method therefor, and a storage medium. The tire building machine comprises a feeding frame, an application template, a cylinder assembly, a drum assembly and an application template positioning device, wherein a base end of the application template is connected to the feeding frame and a top end of the application template is close to the drum assembly, and the application template applies a material for manufacturing a tire to an outer surface of the drum assembly; one end of the cylinder assembly is connected to the feeding frame, and the other end of the cylinder assembly is connected to the application template; when the cylinder assembly extends and retracts, the application template rises and falls; and the application template positioning device is configured to determine the relative position of the application template and the drum assembly on the basis of the extension and retraction of the cylinder assembly.

Description

Tire forming machine and its bonding template positioning method, storage medium

[0001] This application claims priority to an earlier application filed in China on January 20, 2025, with application number 202510088521.5, the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This application relates to control technology for tire forming machines, and in particular to tire forming machines and their bonding template positioning methods and storage media. Background Technology

[0003] Tire forming machines are key pieces of equipment in the tire manufacturing process. They are mainly used to bond semi-finished components such as cord fabric, inner liner, sidewall, and belt layer together in a certain order and shape, and then roll-form them into tire blanks. The tire manufacturing process using tire forming machines typically involves raw material preparation and pretreatment, semi-finished product preparation, material supply and adjustment, and material bonding.

[0004] In tire forming machines, drum assemblies include: carcass drums that carry and fix materials (such as cord fabric, composites, bead sheets, etc.) during material bonding and roll forming the tire casing; forming drums that carry and fix materials (such as belt layers, tread layers, etc.) during material bonding and roll forming the tire crown; and forming drums that shape and roll the tire casing and tire crown to form the embryo. Forming drums include mechanical drums and bladder drums, etc. The following drum assembly only involves carcass drums and belt layer drums. The main function of the drum assembly is to carry materials for bonding and roll forming the embryo, ensuring that the materials maintain the correct position and shape during the forming process. During the forming process, the shape of the carcass drum in the drum assembly is adjusted according to the tire design specifications so that the materials are bonded to the drum to form the tire casing. During the forming process, the drum assembly rotates, driving the materials to wrap and bond. Drum assemblies usually have an adjustable radius to accommodate the production of tires of different specifications. The surface of the drum assembly is smooth to ensure that the materials are not damaged during the bonding process.

[0005] In a tire forming machine, the bonding template is a component used to bond pre-prepared materials to the drum assembly during the material bonding process. The bonding template is positioned at the appropriate bonding position under servo control according to the tire's design requirements, and the materials are bonded. Technical issues

[0006] In existing technologies, experienced workers are required to manually position the bonding template according to the tire's material formula in order to obtain the appropriate bonding position.

[0007] In recent years, there has been a growing demand for tire forming machines to produce multiple tire specifications. As tire specifications are updated, the tire material formula also needs to be updated. This necessitates repeated trials to position the bonding template correctly based on the material formula, resulting in significant time and labor costs and low efficiency. Improper positioning during adjustment can cause the bonding template to collide, damaging the tire production equipment. Incorrect positioning can also lead to material not being properly bonded to the drum assembly, resulting in material waste. Furthermore, if the bonding template is too low, it can cause material compression and stretching, affecting equipment capacity and tire quality. Technical solutions

[0008] To address the aforementioned issues, this application provides a technology for automatically adjusting the position of the bonding template based on the tire's material formula. This standardizes the assembly process, ensuring that the precision of sub-assemblies and final assemblies remains within acceptable error ranges. Based on parameters such as the diameter of the drum assembly and the thickness of the material, the tangent point between the bonding template and the drum assembly is estimated, thereby obtaining the theoretical bonding position. Furthermore, by calculating the error between the theoretical and actual bonding positions using mechanical functions, the final bonding position is obtained by combining the theoretical and actual bonding positions. By automatically adjusting the height of the bonding template, manual intervention is minimized, reducing labor costs and experience requirements, thereby improving production efficiency and profitability.

[0009] This application relates to a tire forming machine, which includes a feeding rack, a bonding template, a cylinder assembly, a drum assembly, and a bonding template positioning device. The bonding template has its base connected to the feeding rack and its top end near the drum assembly. The bonding template bonds tire-making material to the outer surface of the drum assembly. The cylinder assembly has one end connected to the feeding rack and the other end connected to the bonding template. When the cylinder assembly extends or retracts, the bonding template rises and falls. The bonding template positioning device is configured to determine the relative position of the bonding template and the drum assembly based on the extension or retraction of the cylinder assembly.

[0010] This application relates to a bonding template positioning device for a tire forming machine. The tire forming machine includes a feeding rack, a bonding template, a cylinder assembly, and a drum assembly. The bonding template bonds the material used to manufacture the tire to the outer surface of the drum assembly. The bonding template positioning device includes: the cylinder assembly, one end of which is connected to the feeding rack and the other end of which is connected to the bonding template; the bonding template, the base end of which is connected to the feeding rack and the top end of which is close to the drum assembly; and the bonding template rising and falling when the cylinder assembly extends and retracts, thereby determining the relative position of the bonding template and the drum assembly.

[0011] This application relates to a method for positioning a bonding template in a tire forming machine. The tire forming machine includes a feeding frame, a bonding template, a cylinder assembly, a drum assembly, and a bonding template positioning device. The bonding template has its base connected to the feeding frame and its top end near the drum assembly. The bonding template bonds the material used to manufacture the tire to the outer surface of the drum assembly. The cylinder assembly has one end connected to the feeding frame and the other end connected to the bonding template. When the cylinder assembly extends or retracts, the bonding template rises and falls. The bonding template positioning method includes: a preprocessing step, storing the tire's specifications, the tire forming machine's design parameters, and the required calculation functions in a storage unit; a reading step, reading the required parameters and functions from the storage unit according to the specifications of the tire to be manufactured, and obtaining the length of the cylinder assembly during tire manufacturing, i.e., the cylinder assembly length L; and a driving step, setting the cylinder assembly to its length L, thereby determining the relative position of the bonding template and the drum assembly.

[0012] This application relates to a method for positioning a bonding template in a tire forming machine. The tire forming machine includes a feeding rack, a bonding template, a cylinder assembly, and a drum assembly. The bonding template bonds the material used to manufacture the tire to the outer surface of the drum assembly. The method for positioning the bonding template includes: a preprocessing step, storing the tire's specifications, the tire forming machine's design parameters, and the functions required for calculation in a storage unit; a reading step, reading the required parameters and functions from the storage unit according to the specifications of the tire to be manufactured, and obtaining the length of the cylinder assembly during tire manufacturing, i.e., the cylinder assembly length L; and a driving step, setting the cylinder assembly to the cylinder assembly length L, thereby determining the relative position of the bonding template and the drum assembly.

[0013] This application relates to a storage medium storing a computer program that, when executed by a processor, enables the positioning method of the bonding template in the tire forming machine. Beneficial effects

[0014] According to this application, the bonding template can be automatically positioned and bonded without the need for experienced workers to repeatedly make manual adjustments during actual production. This reduction in manual intervention lowers labor costs and experience requirements, improves production accuracy and product quality, increases production efficiency, and boosts production profits.

[0015] The description in this specification is exemplary and illustrative only, and does not limit the scope of protection of this application. For better understanding and implementation, this application is described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram illustrating the fitting template positioning device according to the first embodiment of this application.

[0018] Figure 2 is a schematic diagram illustrating the fitting template positioning device according to the second embodiment of this application.

[0019] Figure 3 is a schematic diagram illustrating the fitting template positioning device according to the third embodiment of this application.

[0020] Figure 4 is a schematic diagram illustrating the function derivation relationship of the template positioning method involved in this application.

[0021] Figure 5 is a flowchart illustrating the theoretical positioning method of the fitting template involved in this application.

[0022] Figure 6 is a flowchart illustrating the first positioning method involving error compensation according to this application.

[0023] Figure 7 is a flowchart illustrating the second positioning method involving error compensation according to this application.

[0024] Figure 8 is a flowchart illustrating the third positioning method involving error compensation according to this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 1: Positioning device; 11: Cylinder assembly; 111: Triangle frame; 12: Adhesive template; 121: Template body; 122: Top roller; 123: Base roller; 124: Conveyor belt; 2: Material; 3: Drum assembly; 4: Feeding rack. Embodiments of the present invention

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0028] [Positioning device for fitting the template]

[0029] It should be understood that the following embodiments are some, but not all, of the embodiments described in this application. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without inventive effort are within the scope of protection of this application.

[0030] <First Embodiment>

[0031] Figure 1 is a schematic diagram illustrating a bonding template positioning device for a tire forming machine according to a first embodiment of this application. The tire forming machine bonds material 2 to a drum assembly 3. Here, the drum assembly 3 is, for example, a tire carcass drum. The positioning device 1 includes a cylinder assembly 11 and a bonding template 12 for determining the relative position of the bonding template 12 and the drum assembly 3. The cylinder assembly 11 is disposed above the bonding template 12 and extends obliquely. The bonding template 12 is disposed above the drum assembly 3 and is close to the drum assembly 3 in a rotatable manner at its top.

[0032] In the first embodiment, an example is given where the cylinder assembly 11 is composed of a combination of an electric cylinder and a pneumatic cylinder. A control unit (not shown, e.g., a PLC) controls the electric cylinder to drive the cylinder assembly, thereby causing the cylinder assembly 11 to extend and retract, thus controlling the length of the cylinder assembly 11 (cylinder assembly length L). The cylinder assembly 11 extends at an angle, with one end connected to the feed rack 4 via a support member and the other end connected to the bonding template 12. When the cylinder assembly 11 extends and retracts, causing the cylinder assembly length L to change, the bonding template 12 rises and falls, thus changing its position. Here, the feed rack 4 is, for example, a main feed rack, used to supply various semi-finished materials required in the tire manufacturing process, such as inner liner rubber, steel wire bead rubber, sidewall rubber, and cord layers. Because it needs to accommodate various different types of materials, the main feed rack is designed flexibly, allowing its configuration to be adjusted according to different production needs.

[0033] The cylinder assembly 11 may include an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, or a combination thereof, and the specific structure is not particularly limited. Regarding the connection method, for example, one end (upper end) of the cylinder assembly 11 may be pivotally connected to the feed rack 4 via a support member (connected to it in a way that it rotates around the rotation axis), and the other end (lower end) may be pivotally connected to the fitting template 12. The length L of the cylinder assembly is the distance from the pivot axis center point of one end to the pivot axis center point of the other end.

[0034] Here, the length of cylinder assembly 11 in the non-extended state is recorded as the initial length L0, the length of cylinder assembly 11 that should be extended according to the tire specifications is recorded as the theoretical extension length ΔL, and the total length of cylinder assembly 11 in the extended state during bonding process is recorded as the bonding length L1, thus obtaining the following formula (1).

[0035] Equation (1): Fitting length L1 = Initial length L0 + Theoretical extension length ΔL.

[0036] Additionally, the bonding template 12 includes a template body 121, a top roller 122, a base roller 123, and a conveyor belt 124. In this embodiment, one end (base end) of the template body 121 is pivotally connected to the feeding frame 4 via a support member, and the other end (top end) is capable of rising and falling. A base roller 123 is provided at one end (base end) of the template body 121, and a top roller 122 is provided at the other end (top end) of the template body 121. The conveyor belt 124 is wound around the top roller 122 and the base roller 123 to transport materials from the feeding frame 4 to the outer surface of the drum assembly 3.

[0037] The cylinder assembly 11 is pivotally connected to the middle position in the extension direction of the template body 121. As long as the top roller 122 can rise and fall when the cylinder assembly 11 extends and retracts, the connection position between the cylinder assembly 11 and the template body 121 is not particularly limited, but is preferably near the approximate midpoint.

[0038] The conveyor belt 124 is an endless belt with its thickness (belt thickness t) fixed at a predetermined value. Regarding the driving method of the conveyor belt 124, an example is given here where the conveyor belt 124 is driven by a base roller 123 equipped with a motor. In this case, the base roller 123 acts as the drive roller, driven by the motor, and thus drives the conveyor belt 124.

[0039] In this embodiment, the radius (roller radius r) of the top roller 122 is a fixed value. The top roller 122 is a smooth roller that does not rotate, but it can also be a roller that can rotate. There is no particular limitation.

[0040] Material 2 is conveyed from the feed rack 4 to the outer surface of the drum assembly 3 by the conveyor belt 124. The composition and amount of material 2 can be determined according to the tire specifications to be manufactured, and there are no particular limitations. In this embodiment, material 2 is given as an example of cord fabric or composite material. The thickness (material thickness T) of material 2 to be wound on the outer surface of the drum assembly 3 can be determined in advance according to the tire specifications to be manufactured.

[0041] The radius of drum assembly 3 is adjustable; specifically, the radius (drum radius R) of drum assembly 3 can be selected according to the tire specifications to be manufactured.

[0042] Preferably, when the conveyor belt 124 conveys the material 2 to the outer surface of the drum assembly 3, the bonding template 12 is tangent to the material 2 bonded to the drum assembly 3. Specifically, the top roller 122 and the drum assembly 3 are close to each other, with the conveyor belt 124 and the material 2 in between. That is, as shown in FIG1, when viewed from the side, the axis of the top roller 122, the contact point between the conveyor belt 124 and the material 2, and the axis of the drum assembly 3 are on the same straight line. Therefore, when manufacturing tires using a tire forming machine, the drum radius R can be determined according to the tire specifications to be manufactured, and the distance (bonding distance S) from the axis of the top roller 122 to the axis of the drum assembly 3 can be determined based on the following formula (2).

[0043] Equation (2): Adhesion distance S = Drum radius R + Material thickness T + Belt thickness t + Roller radius r.

[0044] The cylinder assembly 11 is extended and retracted by a control unit (not shown) to determine the cylinder assembly length L, thereby determining the aforementioned fitting distance S. Based on equations (1) and (2), the correspondence between the theoretical extension length ΔL of the cylinder assembly 11 and the fitting distance S can be obtained. In other words, by controlling the theoretical extension length ΔL of the cylinder assembly 11, the control unit can position the fitting template 12 at the required position relative to the drum assembly 3.

[0045] <Second Embodiment>

[0046] Figure 2 is a schematic diagram illustrating the positioning device for the bonding template according to the second embodiment of this application. The difference between this embodiment and other embodiments is that the cylinder assembly 11 is disposed below the bonding template 12 and extends obliquely upward toward the top roller 122 of the bonding template 12. Alternatively, the cylinder assembly 11 may extend vertically, as long as the top roller 122 can rise and fall during the extension and retraction of the cylinder assembly 11; there is no particular limitation.

[0047] In this embodiment, one end (lower end) of the cylinder assembly 11 is connected to the feed rack 4 via a support member, and the other end (upper end) is pivotally connected to the bonding template 12. When the cylinder assembly 11 extends, the bonding template 12 is lifted up; when the cylinder assembly 11 shortens, the bonding template 12 falls down. That is, when the cylinder assembly 11 extends or retracts, thus changing the length L of the cylinder assembly, the bonding template 12 rises and falls, thus changing its position. Here, the feed rack 4 is, for example, a belt layer feed rack, specifically designed to provide belt layer material. Considering the characteristics of the belt layer material (e.g., high hardness and specific laying angle), the belt layer feed rack has a unique structural design to ensure that the belt layer can be laid flat and wrinkle-free onto the drum assembly 3.

[0048] In this embodiment, the material being bonded can be, for example, a belt layer. Here, the initial length L0, theoretical extension length ΔL, and bonding length L1 of the cylinder assembly 11 also satisfy equation (1). The parameters of the conveyor belt 124, material 2, drum assembly 3, and top roller 122 also satisfy equation (2). Here, the drum assembly 3 is, for example, a belt layer drum, specifically used for laying the belt layer, which is located between the tire carcass and the tread, and serves to enhance tire strength and stability.

[0049] The cylinder assembly 11 is extended and retracted by the control unit to determine the cylinder assembly length L and the contact distance S. Based on equations (1) and (2) and related functional relationships, the correspondence between the theoretical extension length ΔL and the contact distance S can be obtained. That is, by controlling the theoretical extension length ΔL of the cylinder assembly 11, the control unit can position the contact template 12 at the required position relative to the drum assembly 3.

[0050] <Third Embodiment>

[0051] Figure 3 is a schematic diagram illustrating the positioning device for the bonding template according to the third embodiment of this application. Compared with other embodiments, the difference in this embodiment is that the cylinder assembly 11 is disposed below the bonding template 12 and extends and retracts in the horizontal direction, and also includes a tripod 111.

[0052] In this embodiment, one end of the telescopic rod of the cylinder assembly 11 is connected to the feeding rack 4 (here, for example, a belt layer feeding rack), and the other end is connected to the vertical side of the tripod 111. The structure of the tripod 111 is not particularly limited; for example, it can be a right triangle, with the horizontal side of the right angle capable of sliding freely in the horizontal direction, and the vertical side of the right angle facing the feeding rack 4. The tripod 111 is used to convert the horizontal extension and retraction of the cylinder assembly 11 into the upward and downward movement of the bonding template 12 in the inclined direction.

[0053] The vertical apex of the tripod 111 contacts the bonding template 12 via sliders at both ends; specifically, it abuts against the template body 121. When the cylinder assembly 11 extends, the tripod 111 moves horizontally toward the drum assembly 3 (e.g., a belt layer drum), thus lifting the bonding template 12. When the cylinder assembly 11 shortens, the tripod 111 moves horizontally toward the feed rack 4, thus lowering the bonding template 12. In other words, as the cylinder assembly 11 extends and retracts, causing the cylinder assembly length L to change, the bonding template 12 rises and falls, thus changing its position.

[0054] In this embodiment, the material being bonded can be, for example, a belt layer material. Here, the initial length L0, theoretical extension length ΔL, and bonding length L1 of the cylinder assembly 11 also satisfy equation (1). The parameters of the conveyor belt 124, the material 2, the drum assembly 3, and the top roller 122 also satisfy equation (2).

[0055] The cylinder assembly 11 is extended and retracted by the control unit to determine the cylinder assembly length L and the contact distance S. Based on equations (1) and (2), the correspondence between the theoretical extension length ΔL and the contact distance S can be obtained. That is, by controlling the theoretical extension length ΔL of the cylinder assembly 11, the control unit can position the contact template 12 at the required position relative to the drum assembly 3.

[0056] The positioning device for the bonding template described above achieves the following effects: it automatically positions the bonding template and performs the bonding process without requiring experienced workers to repeatedly make manual adjustments during actual production. This reduction in manual intervention lowers labor costs and experience requirements, improves production accuracy and product quality, increases production efficiency, and boosts production profits.

[0057] [Template positioning method]

[0058] The following explains the specific details of the template positioning method. First, the calculation method and function derivation process are explained with reference to Figure 4.

[0059] When manufacturing tires using a tire forming machine, the specifications of the tire to be manufactured are input into the control unit, thereby determining the material thickness T and the drum radius R. Here, the thickness of the conveyor belt 124 and the radius of the top roller 122 are fixed, so the belt thickness t and the roller radius r are fixed values ​​(constants). Therefore, based on equation (2), the distance (fitting distance S) from the axis of the top roller 122 to the axis of the drum assembly 3 can be calculated.

[0060] With the bonding length L1 of cylinder assembly 11 set as X and the bonding distance S set as Y, the theoretical function Y=F(X) can be obtained from the design structure of the tire forming machine. In this embodiment, for example, the theoretical function Y=F(X) can be derived based on the functional relationship shown in Figure 4.

[0061] Figure 4 is a schematic diagram illustrating the function derivation relationship. Specifically, point A is the pivot point between cylinder assembly 11 and feed rack 4, point B is the pivot point between cylinder assembly 11 and template body 121, point C is the axis of top roller 122, point D is the axis of drum assembly 3, and point E is the axis of base roller 123. It should be noted that the pivot point between cylinder assembly 11 and template body 121 (point B) is approximately near the midpoint in the extension direction of template body 121, but may be located off-center from template body 121 in the vertical direction (the direction intersecting the extension direction of template body 121). For example, for ease of understanding, point B is shown above template body 121 in the function derivation relationship, but it could also be below template body 121.

[0062] Referring to Figure 4, when the distance between point A and point E is set to L... AELet the distance between point B and point E be L. BE At that time, there is a function X=g(L) AE ,L BE Similarly, when the distance between point C and point E is set as L, ∠AEB). CE Let the distance between point D and point E be L. DE At that time, there is a function Y=h(L) CE ,L DE ,∠CED). When the distance between point B and point C is set as L BC When, there is a function L BC =p(L BE ,L CE ,∠BEC); when the distance between point A and point D is set as L AD When, there is a function L AD =q(L) AE ,L DE ,∠AED).

[0063] Based on the design parameters of the tire forming machine, the parameter L in the above function can be obtained. AE L BE L CE L DE L BC L AD Given ∠AEB, ∠CED, ∠BEC, and ∠AED, we can derive the theoretical function Y=F(X), where X is the distance between point A and point B (the contact length L1 of cylinder assembly 11), and Y is the distance between point C and point D (the contact distance S).

[0064] Figure 5 is a flowchart illustrating the theoretical positioning method of the bonding template involved in this application. With the theoretical extension length ΔL of the cylinder assembly 11 set as x and the bonding distance S set as y, the theoretical function y=f(x) can be derived based on the theoretical function y=f(x), equation (1), and equation (2). That is, the functional relationship between the theoretical extension length ΔL of the cylinder assembly 11 and the bonding distance S during the bonding process can be obtained.

[0065] Therefore, once the tire specifications to be manufactured are known, the drum radius R of the drum assembly 3 can be determined based on the tire specifications, and the control unit can extend the cylinder assembly 11 by the required theoretical extension length ΔL (corresponding to x) based on the theoretical function y=f(x), thereby controlling the contact distance S (corresponding to y) that is attached to the drum assembly 3.

[0066] In summary, as shown in Figure 5, the theoretical positioning method of the bonding template involved in this application includes: a preprocessing step S001, storing the design parameters of the tire forming machine, the specifications of the tire to be manufactured, and functions including formulas (1) and (2) in the storage unit; a reading step S002, where the control unit reads the required parameters and functions from the storage unit according to the specifications of the tire to be manufactured, and calculates the length (theoretical extension length ΔL) that the cylinder assembly 11 should extend; and a driving step S003, where the control unit controls the cylinder assembly 11 to extend the predetermined theoretical extension length ΔL, thereby determining the relative position of the bonding template 12 and the drum assembly 3.

[0067] Based on the theoretical positioning method of the bonding template described above, the following effects can be achieved: Experienced workers are no longer required to perform repeated manual adjustments during actual production; the positioning device of the bonding template can be automatically adjusted, and the bonding process can be performed automatically. Because the bonding template position is automatically adjusted, the tire forming machine is not limited by tire specifications. That is, after setting the above manufacturing parameters and functions in a single tire forming machine, it can automatically calculate parameters such as the theoretical extension length ΔL (corresponding to x) based on the theoretical function y=f(x) for each tire specification and control the bonding distance S (corresponding to y) to the drum assembly 3. By reducing manual intervention, labor costs and experience requirements can be lowered, production accuracy and product quality can be improved, production efficiency can be increased, and production profits can be increased.

[0068] The above describes the theoretical method for obtaining the theoretical function y=f(x) based on the design parameters of the tire forming machine. However, in actual production, due to factors such as mechanical errors, processing errors, and assembly errors, the theoretical extension length ΔL and the contact distance S may not conform to the theoretical function y=f(x). In this case, error compensation processing should be considered. Specifically, the following three positioning methods that include error compensation should be considered.

[0069] <First Positioning Method Including Error Compensation>

[0070] Figure 6 is a flowchart illustrating the first positioning method including error compensation according to this application. In the preprocessing step S101 performed before actually manufacturing a tire using a tire forming machine, theoretical parameters such as drum radius R, material thickness T, and theoretical extension length ΔL are calculated based on the above function derivation process and stored in a storage unit (not shown) in association with tire specification parameters. Then, the tire forming machine performs a simulated bonding operation based on the theoretical extension length ΔL, and it is determined whether the actual bonding distance deviates from the theoretical value of the bonding distance. If a deviation is determined, the bonding distance S is adjusted to the theoretical value of the bonding distance, and the actual value of the extension length at this time (actual extension length ΔL`) is obtained. The actual extension length ΔL`, tire specification parameters, and theoretical parameters are stored in the storage unit in association.

[0071] When multiple tire specifications need to be manufactured using the same tire forming machine, the above pre-processing operation is repeated for each tire specification. The tire specification parameters, theoretical parameters, and actual extension length ΔL` are listed and stored in the storage unit. The above pre-processing operation can be a simulated bonding operation repeated for each tire specification, or it can be an actual bonding operation performed during the previous manufacturing process. As long as the required parameters can be obtained, there are no particular limitations.

[0072] When the tire forming machine is to be used to actually manufacture tires, the actual manufacturing parameters such as drum radius R, material thickness T, and actual extension length ΔL` are obtained by querying the list according to the tire specifications to be manufactured. The control unit then uses the actual manufacturing parameters to enable the tire forming machine to manufacture tires.

[0073] In summary, as shown in Figure 6, the first positioning method involving error compensation in this application includes: a preprocessing step S101, in which the design parameters of the tire forming machine, the specifications of the tire to be manufactured, the theoretical functions including formulas (1) and (2), and the actual manufacturing parameters including the actual extension length ΔL` are stored in the storage unit as a list; a reading step S102, in which the control unit reads the required theoretical parameters and actual manufacturing parameters from the list in the storage unit according to the specifications of the tire to be manufactured, thereby obtaining the actual extension length ΔL` that the cylinder assembly 11 should extend; and a driving step S103, in which the control unit performs driving control so that the cylinder assembly 11 extends the predetermined actual extension length ΔL`, thereby determining the relative position of the bonding template 12 and the drum assembly 3.

[0074] Based on this positioning method, the actual manufacturing parameters can be obtained by looking up tables, which can reduce the amount of calculation in the control department and enable rapid manufacturing.

[0075] <Second positioning method including error compensation>

[0076] Figure 7 is a flowchart illustrating the second positioning method including error compensation according to this application. The difference between this second positioning method and other positioning methods including error compensation is that, during the pre-processing operation performed before actually manufacturing the tire using a tire forming machine, an error compensation value c is acquired and stored in a storage unit.

[0077] Specifically, during the preprocessing operation, the tire forming machine performs a simulated bonding operation based on the theoretical extension length ΔL, and determines whether the actual bonding distance deviates from the theoretical value. If a deviation is detected, the bonding distance S is adjusted to the theoretical value, and the difference between the actual extension length ΔL` and the theoretical extension length ΔL (error compensation value c) is obtained. The error compensation value c is stored in the storage unit.

[0078] The inventors of this application discovered that the error compensation value c of the same tire forming machine is usually a fixed value. Therefore, when the error compensation value c is determined, even if the same tire forming machine is used to manufacture tires of various specifications, it is not necessary to repeat the above pre-processing operation for each tire specification. Based on the tire specification parameters, theoretical parameters, and error compensation value c, the actual manufacturing parameters such as drum radius R, material thickness T, and actual extension length ΔL` can be obtained. Thus, the control unit uses the actual manufacturing parameters to enable the tire forming machine to manufacture tires.

[0079] Here, the above preprocessing operation can also be repeated for two or more tire specifications to obtain multiple error compensation values ​​c and calculate the average value, which is then stored in the storage unit as the actual error compensation value c' in the manufacturing process.

[0080] In summary, as shown in Figure 7, the second positioning method involving error compensation in this application includes: a preprocessing step S201, storing the design parameters of the tire forming machine, the specifications of the tire to be manufactured, the theoretical functions including formulas (1) and (2), and the actual manufacturing parameters including the error compensation value c in the storage unit; a reading step S202, where the control unit reads the required theoretical parameters, theoretical functions, and actual manufacturing parameters from the storage unit according to the specifications of the tire to be manufactured, and thereby calculates the actual extension length ΔL` that the cylinder assembly 11 should extend according to the error compensation value c; and a driving step S203, where the control unit performs driving control so that the cylinder assembly 11 extends the predetermined actual extension length ΔL`, thereby determining the relative position of the bonding template 12 and the drum assembly 3.

[0081] Based on this error compensation method, there is no need to repeat the above pretreatment operation for each tire size, which can reduce the number of pretreatment operations.

[0082] <Third positioning method including error compensation>

[0083] Figure 8 is a flowchart illustrating the third positioning method including error compensation involved in this application. The difference between this third positioning method and other error-compensated third positioning methods lies in that, during the preprocessing operation performed before actually manufacturing the tire using a tire forming machine, the actual function y=f'(x) considering error compensation is obtained and stored in the storage unit.

[0084] Specifically, in the preprocessing operation, the tire forming machine performs a simulated bonding operation based on the theoretical extension length ΔL, and it is determined whether the actual bonding distance deviates from the theoretical value. If a deviation is found, the bonding distance S is adjusted to the theoretical value, and the actual extension length ΔL` is obtained at this time. Based on the functional relationship shown in Figure 4, the theoretical function y=f(x), equation (1), and equation (2) are derived. Based on the actual extension length ΔL` and the theoretical function y=f(x), the actual function y=f'(x) considering error compensation is derived, and the actual function y=f'(x) is stored in the storage unit.

[0085] The inventors of this application discovered that using a fixed error compensation value c to manufacture tires in a tire forming machine can sometimes result in insufficient precision. Therefore, they used an actual function y=f'(x) that takes error compensation into account. In this case, even if multiple tire specifications need to be manufactured using the same tire forming machine, it is not necessary to repeat the above-mentioned preprocessing operation for each tire specification. Based on tire specification parameters, theoretical parameters, and the actual function y=f'(x), actual manufacturing parameters such as drum radius R, material thickness T, and actual extension length ΔL` can be obtained with high precision. Thus, the control unit uses the actual manufacturing parameters to enable the tire forming machine to manufacture tires with high precision.

[0086] In summary, as shown in Figure 8, the third positioning method involving error compensation in this application includes: a preprocessing step S301, storing the design parameters of the tire forming machine, the specifications of the tire to be manufactured, the theoretical functions including equations (1) and (2), and the actual function y=f'(x) considering error compensation in the storage unit; a reading step S302, where the control unit reads the required theoretical parameters, theoretical functions, and the actual function y=f'(x) considering error compensation from the storage unit according to the specifications of the tire to be manufactured, and thereby calculates the actual extension length ΔL` that the cylinder assembly 11 should extend based on the actual function y=f'(x); and a driving step S303, where the control unit performs driving control so that the cylinder assembly 11 extends the predetermined actual extension length ΔL`, thereby determining the relative position of the bonding template 12 and the drum assembly 3.

[0087] This error compensation method can reduce the number of pre-processing steps and improve the precision of tire manufacturing.

[0088] The above-described error compensation methods are merely illustrative and not particularly limited. Moreover, the first to third error compensation methods described above can be applied to the various embodiments described above.

[0089] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0090] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program instructions.

[0091] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions selected in one or more flowcharts and / or one or more block diagrams. Industrial applicability

[0092] This application automatically adjusts the position of the bonding template based on the tire's material formula, standardizing the assembly process and ensuring that the precision of sub-assemblies and final assemblies is within acceptable tolerances. By automatically adjusting the height of the bonding template, manual intervention is minimized, reducing labor costs and experience requirements, thereby improving production efficiency and profitability.

Claims

1. A tire building machine characterized by, The tire forming machine includes a feeding rack, a bonding template, a cylinder assembly, a drum assembly, and a bonding template positioning device, wherein: The bonding template has its base end connected to the feeding rack and its top end close to the drum assembly. The bonding template will bond the material used to manufacture the tire to the outer surface of the drum assembly. The cylinder assembly is connected at one end to the feeding rack and at the other end to the bonding template. When the cylinder assembly extends or retracts, the bonding template will rise and fall. The fitting template positioning device is configured to determine the relative position of the fitting template and the drum assembly based on the extension and retraction of the cylinder assembly.

2. The tire forming machine according to claim 1, characterized in that, The bonding template includes: The template body has its base connected to the feeding rack, and its top can rise and fall. A base end roller, which is disposed at the base end of the template body, is rotatable; The top roller, which is located at the top of the template body, does not rotate; A conveyor belt, which is wound around the top roller and the base roller and can be driven by the base roller, is used to transport the material from the feed rack to the outer surface of the drum assembly. With the relative position of the bonding template and the drum assembly determined, the bonding template applies the material to the outer surface of the drum assembly.

3. The tire forming machine according to claim 2, characterized in that, The bonding template is positioned above the drum assembly. The cylinder assembly is disposed above the bonding template and extends at an angle. One end of the cylinder assembly is pivotally connected to the feeding rack, and the other end is pivotally connected to the bonding template.

4. The tire forming machine according to claim 2, characterized in that, The cylinder assembly is disposed below the bonding template and extends obliquely upward toward the top roller of the bonding template. The lower end of the cylinder assembly is pivotally connected to the feeding rack, and the upper end is pivotally connected to the bonding template.

5. The tire forming machine according to claim 2, characterized in that, The cylinder assembly is positioned below the bonding template and extends and retracts horizontally. It also includes a right-angled triangular frame, the horizontal side of which is capable of sliding freely horizontally, while the vertical side faces the feeding frame. One end of the telescopic rod of the cylinder assembly is connected to the feeding frame, and the other end is connected to the lower part of the vertical edge. The tripod is used to convert the horizontal extension and retraction of the cylinder assembly into the upward and downward movement of the bonding template in the inclined direction.

6. A method of positioning a building form of a tire building machine, characterized by, The tire forming machine includes a feeding frame, a bonding template, a cylinder assembly, a drum assembly, and a bonding template positioning device. The bonding template has its base connected to the feeding frame and its top end near the drum assembly. The bonding template bonds the material used to manufacture the tire to the outer surface of the drum assembly. The cylinder assembly has one end connected to the feeding frame and the other end connected to the bonding template. When the cylinder assembly extends or retracts, the bonding template rises and falls. The method for positioning the fitting template includes: The preprocessing step involves storing the tire specifications, the tire forming machine design parameters, and the functions required for calculation in the storage unit. The reading step involves retrieving the required parameters and functions from the storage unit based on the specifications of the tire to be manufactured, and obtaining the length of the cylinder assembly during tire manufacturing, i.e., the cylinder assembly length L; and The driving step involves making the cylinder assembly the length L of the cylinder assembly, thereby determining the relative position of the bonding template and the drum assembly.

7. The method for positioning the bonding template of the tire forming machine according to claim 6, characterized in that, In the preprocessing step, for each tire specification, based on the parameters and the function, the actual extension length of the cylinder assembly, i.e., the actual extension length ΔL`, is calculated, and the specification parameters and the actual extension length ΔL` are listed and stored in the storage unit in association. In the reading step, the actual extension length ΔL` is read from the list in the storage unit according to the specification parameters of the tire to be manufactured. In the driving step, the cylinder assembly is extended by the actual extension length ΔL`, thereby determining the relative position of the fitting template and the drum assembly.

8. The method for positioning the bonding template of the tire forming machine according to claim 6, characterized in that, In the preprocessing step, based on the parameters and the function, the theoretical extension length ΔL of the cylinder assembly is calculated, and the actual extension length ΔL` of the cylinder assembly is obtained. The difference between the theoretical extension length ΔL and the actual extension length ΔL` of the cylinder assembly is calculated, i.e., the error compensation value c. The specification parameters, the theoretical extension length ΔL, and the error compensation value c are stored in the storage unit. In the reading step, the actual extension length ΔL` of the cylinder assembly is calculated based on the specification parameters of the tire to be manufactured, the theoretical extension length ΔL, and the error compensation value c. In the driving step, the cylinder assembly is extended by the actual extension length ΔL`, thereby determining the relative position of the fitting template and the drum assembly.

9. The method for positioning the bonding template in a tire forming machine according to claim 6, characterized in that, In the preprocessing step, based on the parameters and the function, the actual function y=f'(x) considering error compensation is obtained by calculating the theoretical extension length ΔL of the cylinder assembly and obtaining the actual extension length ΔL' of the cylinder assembly. The specification parameters and the actual function y=f'(x) are then stored in the storage unit. In the reading step, the actual extension length ΔL` of the cylinder assembly is calculated based on the specification parameters of the tire to be manufactured and the actual function y=f'(x); In the driving step, the cylinder assembly is extended by the actual extension length ΔL`, thereby determining the relative position of the fitting template and the drum assembly.

10. A storage medium storing a computer program, characterized in that When the computer program is executed by the processor, it can implement the bonding template positioning method of the tire forming machine according to any one of claims 6 to 9.

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