Tire building machine

Abstract

Provided in the present application is a tire building machine. The tire building machine comprises a winding machine head; a plurality of laminating templates, which are all obliquely arranged, wherein the at least two laminating templates are arranged at different heights; and a belt drum, which is movably arranged on output sides of the laminating templates and an output side of the winding machine head, wherein a movement trajectory of the belt drum is perpendicular to a conveying trajectory line of each laminating template, such that the laminating templates are always tangential to a surface of the belt drum when performing laminating. The present application solves the problem in the prior art of a passenger radial tire building machine having poor laminating precision and stability for laminating and winding different sizes of belt drums.

Description

Tire building machine

[0001] This application claims priority to a patent application filed with the State Intellectual Property Office of China on June 29, 2023, with application number 202321699103.2 and invention name “Tire Building Machine”, and a patent application filed with the State Intellectual Property Office of China on August 31, 2023, with application number 202322367798.0 and invention name “Tire Building Machine”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the technical field of tire processing, and in particular to a tire building machine. Background Art

[0003] Currently, the feeding devices for the various crown components in the two-stage building system of radial passenger tire building machines mostly employ a structure in which the belt and tread lamination templates swing, while the belt drum moves horizontally to switch positions. This structure presents a series of problems, including complex structure, cumbersome operation, low efficiency, and high failure rate. Furthermore, the large number of moving parts also places high demands on quality control during the tire production process.

[0004] Some two-stage designs employ a fixed belt and tread template, with the belt drum moving horizontally while also moving vertically to switch between different bonding positions. This approach, when used with belt drums of varying sizes, results in different contact points between the bonding template and the drum due to varying belt drum diameters. This results in poor bonding accuracy and stability between the belt, tread, and cap strip.

[0005] Utility Model Content

[0006] The main purpose of the present application is to provide a tire building machine to solve the problem of poor fitting accuracy and stability of the existing passenger radial tire building machine for belt drums of different sizes.

[0007] In order to achieve the above-mentioned purpose, according to an optional embodiment of the present application, a tire forming machine is provided, comprising: a winding head; a plurality of bonding templates, the bonding templates are all inclined, and at least two bonding templates are arranged at different heights; a belt layer drum, the belt layer drum is movably arranged on the output side of each bonding template and the winding head, and the moving trajectory of the belt layer drum is arranged perpendicular to the conveying trajectory line of the bonding template, so that the bonding template is always tangent to the surface of the belt layer drum during bonding.

[0008] In an optional embodiment, the bonding template is tilted downward along the conveying direction of the bonding template, and the conveying trajectory line of the bonding template forms an angle of 10°-20° with the horizontal plane, and the moving trajectory line of the belt layer drum forms an angle of 10°-20° with the vertical plane.

[0009] In an optional embodiment, all the laminating templates include a first laminating template for conveying the belt layer and a second laminating template for conveying the belt layer, and the first laminating template and the second laminating template are arranged in parallel and on the same surface.

[0010] In an optional embodiment, all the fitting templates further include a tread fitting template, and the tread fitting template is arranged above the first fitting template and the second fitting template.

[0011] In an optional embodiment, the tread fitting template is located directly above the first fitting template or the second fitting template.

[0012] In an optional embodiment, the winding head is located between the first bonding template and the tread bonding template along the vertical direction.

[0013] In an optional embodiment, the winding head is movably arranged, and the moving trajectory of the winding head is parallel to the conveying trajectory of the bonding template.

[0014] In an optional embodiment, the tire forming machine also includes a lifting mechanism, which includes: a bracket, the bracket is tilted, the belt drum is movably set on the bracket, and can be tilted along the bracket; an inclined movement driving member, the inclined movement driving member is connected to the belt drum driving and can drive the belt drum to tilt along the bracket.

[0015] In an optional embodiment, the bracket is horizontally movably arranged and can drive the belt layer drum to move in a direction perpendicular to the conveying trajectory line of the bonding template. The lifting mechanism also includes a horizontal moving drive component, which is connected to the bracket drive and can drive the bracket to move horizontally.

[0016] In an optional embodiment, the lifting mechanism further includes a balancing driving member, which is drivingly connected to the belt drum and jointly drives the belt drum to tilt and move with the tilting driving member.

[0017] By applying the technical solution of the present application, the movement of the belt drum is optimized and improved, and the movement trajectory of the belt drum is set to be perpendicular to the conveying trajectory of the bonding template. In this way, when the belt drum moves up and down to cooperate with different bonding templates, the bonding template and the belt drum can always maintain a tangent relationship, thereby ensuring bonding accuracy and stability. At the same time, even if the tire specifications change and the belt drum diameter changes accordingly, it can still be ensured that the tangent point between the bonding template and the belt drum, that is, the bonding position of the rubber and the drum, will not change regardless of the change in the belt drum diameter. This can effectively avoid the adverse effects of bonding position changes caused by changes in specifications on bonding accuracy, ensuring that bonding accuracy and stability are always maintained at a high level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0019] FIG1 shows a front view of the tire building machine of the present application with the second laminating template hidden;

[0020] FIG2 shows a top view of the tire building machine in FIG1 ;

[0021] FIG3 shows a schematic structural diagram of the lifting mechanism in FIG1 ;

[0022] FIG4 shows an axonometric view of FIG3 ;

[0023] FIG5 shows a simplified structural diagram of the tire building machine in FIG1 ;

[0024] FIG6 shows a schematic structural diagram of the tire building machine in FIG5 when the belt drum cooperates with the first laminating template or the second laminating template;

[0025] FIG7 shows a schematic structural diagram of the tire building machine in FIG5 when the belt drum and the winding head cooperate;

[0026] FIG8 shows a schematic structural diagram of the tire building machine in FIG5 when the belt drum cooperates with the tread laminating template.

[0027] The above drawings include the following reference numerals:

[0028] 10. Winding machine head; 21. First bonding template; 22. Second bonding template; 23. Tread bonding template; 30. Belt drum; 40. Lifting mechanism; 41. Bracket; 42. Tilt motion drive member; 43. Horizontal motion drive member; 44. Balance drive member. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to solve the problem of poor lamination accuracy and stability of the existing passenger radial tire building machine for laminating and winding belt drums of different sizes, the present application provides a tire building machine.

[0031] A tire forming machine as shown in Figures 1 to 8 includes a winding head 10, multiple bonding templates and a belt layer drum 30, the bonding templates are all inclined, and at least two bonding templates are set at different heights; the belt layer drum 30 is movably set on the output side of each bonding template and the winding head 10, and the moving trajectory of the belt layer drum 30 is perpendicular to the conveying trajectory line of the bonding template, so that the bonding template is always tangent to the surface of the belt layer drum 30 during bonding.

[0032] This embodiment optimizes and improves the movement of the belt drum 30, setting the movement trajectory of the belt drum 30 perpendicular to the conveying trajectory of the bonding template. This allows the bonding template and the belt drum 30 to maintain a tangent relationship when the belt drum 30 tilts up and down to mate with different bonding templates, thereby ensuring bonding accuracy and stability. Furthermore, even if the tire specifications change and the belt drum 30 diameter changes accordingly, the tangent point between the bonding template and the belt drum 30, that is, the bonding position between the rubber and the drum, remains unchanged. This effectively prevents bonding position changes caused by specification changes, which could adversely affect bonding accuracy, ensuring that bonding accuracy and stability remain at a consistently high level.

[0033] In this embodiment, the bonding template is fixedly set, that is, the bonding template will not swing or move, and the cooperation between it and the belt layer drum 30 is achieved by the movement of the belt layer drum 30. In this way, the fixed-angle bonding template is simpler in structure and has better stability than the swinging bonding template. Moreover, since there is no swinging action during the production process, the bonding efficiency can be improved.

[0034] As shown in Figures 1 and 5, in this embodiment, the laminating template is tilted downward along its conveying direction. This means that the lower end of the laminating template is the delivery side, and this end also serves as the laminating position for cooperation with the belt drum 30. When the belt drum 30 is in this position, laminating operations and other operations can be performed. Optionally, the laminating template's conveying trajectory forms an angle of 10°-20° with the horizontal plane, and accordingly, the belt drum 30's moving trajectory forms an angle of 10°-20° with the vertical plane. This ensures laminating adaptability and meets laminating requirements in various situations.

[0035] Preferably, the conveying trajectory of the laminating template forms an angle of 12° with the horizontal plane, and correspondingly, the moving trajectory of the belt drum 30 forms an angle of 12° with the vertical plane.

[0036] In this embodiment, all laminating templates include a first laminating template 21 for conveying the belt layer and a second laminating template 22 for conveying the belt layer. That is, all laminating templates include two belt layer laminating templates, and the first laminating template 21 and the second laminating template 22 are arranged parallel to each other and on the same surface. The parallel arrangement mentioned here refers to the longitudinal direction of the two, that is, the parallel arrangement between the conveying trajectory lines. In this way, the first laminating template 21 and the second laminating template 22 are located at the same height and are tilted downward synchronously. Of course, the number of laminating templates can be increased as needed and is not limited to two.

[0037] In addition to the two belt laminating templates described above, all laminating templates in this embodiment also include a tread laminating template 23, which is arranged above the first laminating template 21 and the second laminating template 22. The tread laminating template 23 and the first laminating template 21 and the second laminating template 22 are all arranged at an angle and are parallel to each other. In this way, no matter which laminating template the belt drum 30 is mated with, the mating template can achieve the effect of being tangent to the surface of the belt drum 30.

[0038] Preferably, in this embodiment, the tread bonding template 23 is arranged directly above the first bonding template 21 or the second bonding template 22. This arrangement can reduce the path length of the belt drum 30 moving between the bonding templates during bonding, thereby improving processing efficiency.

[0039] In this embodiment, the winding head 10 is located between the first bonding template 21 and the tread bonding template 23 in the vertical direction. In addition, the winding head 10 of this embodiment adopts a movable setting mode, which is different from the fixed setting mode of the aforementioned bonding template. The winding head 10 of this embodiment can move forward and backward, that is, it moves in the direction close to or away from the belt drum 30. In this way, the moving trajectory line of the winding head 10 is parallel to the conveying trajectory line of the bonding template. When the crown strip needs to be wound, the belt drum 30 moves until its center is located on the extension line of the winding head 10, and then the winding head 10 moves in the direction close to the belt drum 30, so that it can contact the belt drum 30. The belt drum 30 is provided with a plurality of belt layers, and the winding head 10 is radially aligned with the belt drum 30. No matter how the size of the belt drum 30 changes, it is always radially aligned when cooperating with the winding head 10, thereby ensuring the matching accuracy and stability during winding. In combination with the aforementioned arrangement between the belt drum 30 and the bonding template, the belt drums 30 of different sizes can achieve unified docking positions with various bonding templates, the winding head 10 and other components during the entire processing process, avoiding changes in the docking position due to changes in specifications, and ensuring the accuracy and stability of the entire process.

[0040] As shown in Figures 3 and 4, in this embodiment, the tire building machine further includes a lifting mechanism 40, which includes a bracket 41 and a tilting drive 42. The bracket 41 is the main body of the lifting mechanism 40, and the belt drum 30 is movably mounted on the bracket 41. The bracket 41 is tilted to match the movement of the belt drum 30. The tilt direction and angle of the bracket 41 are the same as those of the aforementioned belt drum 30. In this way, the belt drum 30 can tilt along the bracket 41 to achieve tangential fit with components such as the laminating template. The tilting drive 42 can be connected to the belt drum 30 via a transmission component such as a gear rack. The tilting drive 42 can be a motor or other component, and is used to drive the belt drum 30 to tilt along the bracket 41, achieving tilted up and down movement of the belt drum 30.

[0041] In this embodiment, in addition to the movement of the belt drum 30 along the bracket 41, the bracket 41 itself is also arranged to be horizontally movable. The direction of movement of the bracket 41 is perpendicular to the conveying trajectory of the bonding template, that is, it moves along the arrangement direction of the first bonding template 21 and the second bonding template 22, so that the bracket 41 can drive the belt drum 30 to switch positions between the first bonding template 21 and the second bonding template 22, thereby achieving the bonding of multiple layers of belt rubber on the belt drum 30. Correspondingly, the lifting mechanism 40 also includes a horizontally movable driving member 43, which can also be a motor or other component. The horizontally movable driving member 43 can be connected to the bracket 41 through transmission components such as gears and racks, thereby driving the bracket 41 to move horizontally.

[0042] In this embodiment, the lifting mechanism 40 further includes a balancing drive member 44, which can be a balancing cylinder. The balancing drive member 44 is connected to the belt drum 30 and, together with the tilting drive member 42, drives the belt drum 30 to tilt. In this way, the balancing cylinder can provide an auxiliary function of balancing gravity and reducing the load on the motor.

[0043] The specific working process of the tire building machine of this embodiment is as follows:

[0044] 1. As shown in Figure 6, the horizontal motion drive 43 first drives the bracket 41 and the belt drum 30 to move horizontally, so that the belt drum 30 moves above the first lamination template 21. The tilting motion drive 42 then drives the belt drum 30 to move at a 12° angle to the vertical to the lamination position of the first lamination template 21. During the tilting motion, the balancing drive 44 provides an auxiliary function to balance gravity and reduce motor load. At this point, the belt drum 30 moves into position, becoming tangential to the first lamination template 21.

[0045] 2. The first laminating template 21 cooperates with the belt drum 30 to laminate a layer of belt rubber;

[0046] 3. The horizontal movement driving member 43 drives the belt drum 30 to move horizontally to above the second laminating template 22. At this time, the belt drum 30 and the second laminating template 22 are in a tangential relationship.

[0047] 4. The second laminating template 22 cooperates with the belt drum 30 to achieve lamination of the two belt layers;

[0048] 5. As shown in FIG7 , the belt drum 30 moves upward along a 12° inclination and moves horizontally to the fitting winding position of the winding head 10;

[0049] 6. The winding head 10 extends along the center direction of the belt drum 30 and approaches the belt drum 30 to wind and laminate the cap strip;

[0050] 7. As shown in FIG8 , the belt drum 30 continues to move upward along a 12° incline to the bonding position of the tread bonding template 23 for tread bonding. At this time, the belt drum 30 and the tread bonding template 23 are in a tangential relationship, thus completing the bonding of the two-stage crown assembly.

[0051] 8. The belt drum 30 moves to the tire crown removal position and waits.

[0052] It should be noted that, in the above embodiments, a plurality refers to at least two.

[0053] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0054] 1. Solve the problem of poor lamination accuracy and stability of the existing passenger radial tire building machine for laminating and winding belt drums of different sizes;

[0055] 2. It can effectively avoid the change of bonding position caused by the change of specifications, which may cause adverse effects on the bonding accuracy, and ensure that the bonding accuracy and stability are always maintained at a high level;

[0056] 3. Compared with the swing-type laminating template, the fixed-angle laminating template has a simpler structure and better stability. In addition, since there is no swinging action during the production process, the laminating efficiency can be improved.

[0057] 4. Belt drums of different sizes can achieve uniform docking positions with various laminating templates, winding machine heads and other components during the entire processing process, avoiding docking position changes caused by changes in specifications and ensuring the accuracy and stability of the entire process;

[0058] 5. When the specifications change, no additional mechanical adjustments are required. The specifications can be switched by changing the parameters, which saves the time of changing specifications and reduces the difficulty of operation.

[0059] Obviously, the embodiments described above are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0060] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A tire building machine, characterized in that: include: Winding machine head (10); A plurality of laminating templates, each of which is arranged at an angle, and at least two of which are arranged at different heights; The belt layer drum (30) is movably arranged on the output side of each of the laminating templates and the winding head (10), and the moving trajectory of the belt layer drum (30) is vertically arranged between the conveying trajectory line of the laminating template, so that the laminating template is always tangent to the surface of the belt layer drum (30) during laminating.

2. The tire building machine according to claim 1, characterized in that: Along the conveying direction of the laminating template, the laminating template is inclined downward, and the conveying trajectory of the laminating template forms an angle of 10°-20° with the horizontal plane, and the moving trajectory of the belt layer drum (30) forms an angle of 10°-20° with the vertical plane.

3. The tire building machine according to claim 1, characterized in that: All the laminating templates include a first laminating template (21) for conveying the belt layer and a second laminating template (22) for conveying the belt layer. The first laminating template (21) and the second laminating template (22) are arranged in parallel and on the same surface.

4. The tire building machine according to claim 3, characterized in that: All of the bonding templates further include a tread bonding template (23), and the tread bonding template (23) is arranged above the first bonding template (21) and the second bonding template (22).

5. The tire building machine according to claim 4, characterized in that: The tread bonding template (23) is located directly above the first bonding template (21) or the second bonding template (22).

6. The tire building machine according to claim 4, characterized in that: Along the vertical direction, the winding machine head (10) is located between the first bonding template (21) and the tread bonding template (23).

7. The tire building machine according to claim 1, characterized in that: The winding machine head (10) is movably arranged, and the moving track line of the winding machine head (10) is parallel to the conveying track line of the bonding template.

8. The tire building machine according to any one of claims 1 to 7, characterized in that: The tire building machine further comprises a lifting mechanism (40), wherein the lifting mechanism (40) comprises: A support (41), wherein the support (41) is arranged obliquely, and the belt layer drum (30) is movably arranged on the support (41) and can be inclined and moved along the support (41); An inclined movement driving member (42) is drivingly connected to the belt layer drum (30) and is capable of driving the belt layer drum (30) to move obliquely along the bracket (41).

9. The tire building machine according to claim 8, characterized in that: The support (41) is arranged to be horizontally movable and can drive the belt layer drum (30) to move in a direction perpendicular to the conveying trajectory line of the bonding template. The lifting mechanism (40) also includes a horizontal moving drive member (43). The horizontal moving drive member (43) is connected to the support (41) by driving and can drive the support (41) to move horizontally.

10. The tire building machine according to claim 8, characterized in that: The lifting mechanism (40) further comprises a balancing driving member (44), which is drivingly connected to the belt layer drum (30) and, together with the tilting movement driving member (42), drives the belt layer drum (30) to tilt and move.

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