Tire bead unseating device

Abstract

The utility model provides a kind of tire apex rubber forming drum device and bead forming system, wherein, tire apex rubber forming drum device includes: fixed disc, support component for supporting rubber material, driving disc and multiple first transmission rods, support component is along the circumferential setting of fixed disc, and support component is movably set along the radial direction of fixed disc;Driving disc and fixed disc coaxial setting, and driving disc is rotatably set relative to fixed disc;Each first transmission rod is arc-shaped, each first transmission rod is arranged along the circumferential of driving disc, and the both ends of each first transmission rod are movably connected with driving disc and support component respectively, when driving disc rotates, support component is moved along the radial direction of fixed disc by each first transmission rod.The utility model solves the problem that the drum diameter adjustment automation degree of apex rubber forming drum in prior art is lower.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing, and more specifically, to a tire triangular rubber forming drum device and a tire bead forming system. Background Technology

[0002] In the tire manufacturing industry, triangular rubber forming drum devices are used to wind triangular rubber strips into a predetermined shape to form part of the tire. Existing triangular rubber forming drum devices typically use manual adjustment of the drum diameter. This design is not only inefficient, but also has a limited adjustment range, usually only within three inches, which is difficult to meet the precision and flexibility requirements of modern tire production.

[0003] Furthermore, existing triangular rubber forming drum devices often only equip the material head clamp during operation, neglecting to secure the material tail. This unilateral fixing method may lead to instability in the rubber strip during winding, thus affecting the joint quality of the tire bead and the overall tire performance. Meanwhile, traditional drum flipping devices are usually quite complex, using a mandrel inside a hollow shaft connected to an external motor via gears and racks. This not only increases the complexity of the equipment but also raises production costs. Utility Model Content

[0004] The main objective of this invention is to provide a tire triangular rubber forming drum device and a tire bead forming system to solve the problem of low automation in the adjustment of the diameter of the triangular rubber forming drum in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tire triangular rubber forming drum device is provided, comprising: a fixed disk, a support assembly for supporting rubber material, a drive disk, and a plurality of first transmission rods. The support assembly is arranged circumferentially along the fixed disk and is movably arranged radially along the fixed disk. The drive disk and the fixed disk are coaxially arranged, and the drive disk is rotatable relative to the fixed disk. Each first transmission rod is arc-shaped and arranged circumferentially along the drive disk. The drive disk includes a plurality of sub-discs, each sub-disc arranged axially along the fixed disk. The two ends of each first transmission rod are movably connected to the drive disk and the support assembly, respectively. When the drive disk rotates, the support assembly is driven to move radially along the fixed disk through each first transmission rod.

[0006] Furthermore, each sub-disc rotates synchronously, and each first transmission rod connected to the same sub-disc is evenly distributed along the circumference of the sub-disc.

[0007] Furthermore, the support assembly includes multiple support members, and the fixed disk has multiple radially extending tracks. Each support member and each track is arranged circumferentially along the fixed disk. The first end of each support member is located in each track, and each support member is movably connected to each first transmission rod. When the fixed disk rotates, each first transmission rod drives each support member to move radially along the fixed disk.

[0008] Furthermore, the support includes a first connecting rod and a drum plate. The first connecting rod is used to connect with the fixed plate and the first transmission rod. The drum plate is rotatably connected to the first connecting rod and is used to support the rubber material.

[0009] Furthermore, the support assembly includes multiple support members, each including a first connecting rod and a drum plate for supporting the rubber material. The first connecting rod and the drum plate are rotatably connected, and the fixed disk and the first transmission rod are both connected to the first connecting rod. The tire triangular rubber forming drum device also includes a drum plate driving assembly, which is connected to the drum plate drive and is capable of driving the drum plate to rotate, thereby rotating the rubber material.

[0010] Furthermore, the drum drive assembly includes a movable disc and multiple second transmission rods. The movable disc is coaxially arranged with the fixed disc and is axially movable. Each second transmission rod is arranged circumferentially along the movable disc, connected to the movable disc, and movably connected to the drum. The connection point between the first connecting rod and the drum is the first connection point, and the connection point between the second transmission rod and the drum is the second connection point. The first and second connection points are arranged axially along the movable disc. When the movable disc moves axially, it drives the drum to rotate through each second transmission rod.

[0011] Furthermore, the first connecting rod has a groove extending axially along the movable disc, at least a portion of the second transmission rod is located within the groove and is movable along the groove to drive the drum plate to rotate.

[0012] Furthermore, the tire triangular rubber forming drum device also includes a material head fixing assembly for fixing the rubber material head. The material head fixing assembly includes a second driving member and a pressing member. The second driving member is connected to the first connecting rod. The pressing member is rotatably connected to the first connecting rod. The second driving member is driven to rotate the pressing member to press and release the rubber material on the drum plate.

[0013] Furthermore, the tire triangular rubber forming drum device also includes a material tail fixing assembly for fixing the material tail. The material tail fixing assembly includes an adsorption element located on the surface of the drum plate and used to adsorb the material.

[0014] Furthermore, the tire triangular rubber forming drum device also includes a first driving member, which is located at the center of the driving disk. The first driving member is driven to connect with the driving disk and drives the driving disk to move the support assembly radially.

[0015] According to another aspect of the present invention, a tire bead forming system is provided, including the above-described tire triangular rubber forming drum device.

[0016] By applying the technical solution of this utility model, a drive disc can drive multiple first transmission rods to move, thereby driving the support assembly to move radially along the fixed disc, thus realizing the adjustment of the drum diameter of the tire triangular rubber forming drum device. Compared with traditional manual adjustment, it can improve the automation level of drum diameter adjustment, thereby greatly improving the efficiency of drum diameter adjustment. At the same time, the structure is simple and easy to operate, which helps to reduce costs and improve the automation level of the tire triangular rubber forming drum device. Moreover, the drive disc in this embodiment includes multiple sub-discs, which makes the connection range of the first transmission rods larger, which means that more [specific components] can be set in the narrow space between the drive disc and the support assembly. The presence of multiple first transmission rods makes the support surface of the support assembly for the rubber material closer to a circle, thereby improving the support effect on the rubber material. At the same time, it can avoid interference and constraints between the first transmission rod and other components. In addition, the first transmission rod in this embodiment is set as an arc shape, which can better adapt to the narrow space between the drive disk and the support assembly, thereby reducing interference and constraints between the first transmission rod and other components. Furthermore, the arc shape of the first transmission rod can distribute the stress point over a longer arc length, thereby making the stress distribution of the first transmission rod more uniform, reducing local stress concentration, and thus helping to improve the fatigue life and overall strength of the first transmission rod. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the tire triangular rubber forming drum device of this utility model is shown;

[0019] Figure 2 A schematic diagram of the tire triangular rubber forming drum device without the material head fixing assembly is shown.

[0020] Figure 3 A schematic diagram of the mechanism, consisting of a fixed disk, a first transmission rod, and a drive disk, is shown.

[0021] Figure 4 A side view of the tire triangle rubber forming drum assembly is shown when the support assembly is away from the drive disc;

[0022] Figure 5 A side view of the tire triangle rubber forming drum assembly is shown when the support assembly is close to the drive disc;

[0023] Figure 6This diagram shows the structure of the tire triangular rubber forming drum device when the drum plate is flipped up;

[0024] Figure 7 It shows Figure 1 Another structural diagram from a different angle;

[0025] Figure 8 A schematic diagram of the material tail fixing assembly is shown;

[0026] Figure 9 A top view of the drive disc and the first transmission rod is shown;

[0027] Figure 10 It shows Figure 9 Side view.

[0028] The above figures include the following reference numerals:

[0029] 10. Fixed plate; 11. Track; 20. Support assembly; 21. Support component; 211. First connecting rod; 212. Drum plate; 213. Slide groove; 30. Drive plate; 40. First transmission rod; 50. Drum plate drive assembly; 51. Movable plate; 52. Second transmission rod; 60. Material head fixing assembly; 61. Second drive component; 62. Pressing component; 70. Material tail fixing assembly; 71. Adsorption component; 80. First drive component; 90. Adhesive material. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] To address the issue of low automation in adjusting the diameter of the existing triangular rubber forming drum, this invention provides a tire triangular rubber forming drum device and a tire bead forming system, wherein the tire bead forming system includes the tire triangular rubber forming drum device described below.

[0034] like Figures 1 to 10The tire triangular rubber forming drum device shown includes: a fixed disk 10, a support assembly 20 for supporting rubber material 90, a drive disk 30, and a plurality of first transmission rods 40. The support assembly 20 is arranged circumferentially along the fixed disk 10 and is movably arranged radially along the fixed disk 10. The drive disk 30 is coaxially arranged with the fixed disk 10 and is rotatable relative to the fixed disk 10. Each of the first transmission rods 40 is arc-shaped and arranged circumferentially along the drive disk 30. The drive disk 30 includes a plurality of sub-discs, each of which is arranged axially along the fixed disk 10. The two ends of each first transmission rod 40 are movably connected to one of the sub-discs and the support assembly 20, respectively. When the drive disk 30 rotates, it drives the support assembly 20 to move radially along the fixed disk 10 through each of the first transmission rods 40.

[0035] In this embodiment, the drive disc 30 can drive multiple first transmission rods 40 to move, thereby driving the support assembly 20 to move radially along the fixed disc 10, thus realizing the adjustment of the drum diameter of the tire triangular rubber forming drum device. Compared with the traditional manual adjustment, it can improve the automation of drum diameter adjustment, thereby greatly improving the efficiency of drum diameter adjustment. At the same time, the structure is simple and easy to operate, which helps to reduce costs. Moreover, the drive disc 30 in this embodiment includes multiple sub-discs, which makes the connection range of the first transmission rods 40 larger. This means that more first transmission rods 40 can be set in the narrow space between the drive disc 30 and the support assembly 20, so that the support surface of the support assembly 20 on the rubber material is closer to a circle, thereby improving the support effect on the rubber material. At the same time, it can avoid interference and constraint between the first transmission rods 40 and other components. In addition, the first transmission rods 40 in this embodiment are set as arcs. The arc shape of the first transmission rods 40 can distribute the force points over a longer arc length, thereby making the stress distribution of the first transmission rods 40 more uniform, thereby reducing local stress concentration, which helps to improve the fatigue life and overall strength of the first transmission rods 40.

[0036] It should be noted that, as Figure 9 , Figure 10 As shown, this embodiment has two sub-disks, namely a first sub-disk and a second sub-disk, which are arranged along the axial direction of the fixed disk 10. Part of the first transmission rod 40 is connected to the first sub-disk, and part of the first transmission rod 40 is connected to the second sub-disk. The first transmission rods 40 connected to the first sub-disk and the first transmission rods 40 connected to the second sub-disk are staggered along the circumference of the drive disk 30, thereby avoiding mutual interference between the first transmission rods 40 and allowing more first transmission rods 40 to be arranged along the circumference of the drive disk 30, thus improving the support effect of the support assembly 20 on the adhesive material. Of course, a third or fourth sub-disk can also be provided according to actual needs, thereby providing a larger connection range for the first transmission rods 40.

[0037] In this embodiment, each sub-disc rotates synchronously, and each first transmission rod 40 connected to the same sub-disc is evenly distributed along the circumference of the sub-disc. This allows each first transmission rod 40 to drive the support assembly 20 to move synchronously along the radial direction of the fixed disk, ensuring that the end of the support assembly 20 away from the central axis of the fixed disk remains circular. Specifically, in this embodiment, the drive disk 30 is integrally formed, and each sub-disc is integrated. Each sub-disc has an annular groove on its outer circumference. The annular grooves of different sub-discs are parallel and coaxial to facilitate connection with the first transmission rods 40. When each sub-disc rotates synchronously, it can drive each first transmission rod 40 to move simultaneously, allowing the support assembly 20 to move synchronously radially at different circumferential positions. The even distribution of the first transmission rods 40 on each sub-disc provides a larger and more uniform movement space for each first transmission rod 40 in the circumferential direction of the sub-disc, avoiding mutual interference between the first transmission rods 40 connected to different sub-discs.

[0038] like Figure 1 As shown, in this embodiment, the support component 20 includes a plurality of support members 21, such as... Figure 2 , Figure 3 , Figure 4 As shown, the fixed disk 10 has multiple radially extending tracks 11. Each support member 21 and each track 11 are arranged circumferentially along the fixed disk 10. The first end of each support member 21 is located in each track 11, and each support member 21 is movably connected to each first transmission rod 40. When the fixed disk 10 rotates, each first transmission rod 40 drives each support member 21 to move radially along the fixed disk 10, thereby realizing the expansion and contraction of the support member 21 assembly. Specifically, in this embodiment, the fixed disk 10 is disc-shaped, and each track 11 is radially arranged on the disk. The end of the first transmission rod 40 away from the drive disk 30 is connected to the support member 21. The bending direction of each first transmission rod 40 is consistent along the circumference of the drive disk 30, so that when the drive disk 30 rotates, it drives the end of the first transmission rod 40 close to the drive disk 30 to rotate. The end of the first transmission rod 40 connected to the support member 21 drives the support member 21 to move along the track 11, so that the support member 21 moves radially along the drive disk 30. The synchronous movement of each support member 21 realizes the expansion and contraction of the support assembly 20, thereby realizing the adjustment of the drum diameter of the tire triangular rubber forming drum device.

[0039] Preferably, the fixed disk 10 can be set to be much larger than the drive disk 30, so that the track 11 has a sufficient length along the radial direction of the fixed disk 10. In this way, when the drive disk 30 drives the first transmission rod 40 and then drives the support member 21 to move, the support member 21 can have a larger stroke, thereby making the adjustment range of the support assembly 20 larger, and thus making the drum diameter adjustment range of the tire triangular rubber forming drum device larger. This allows the tire triangular rubber forming drum device to be applicable to the production of more specifications of rubber 90, thereby improving the adaptability of the tire triangular rubber forming drum device.

[0040] like Figure 2 As shown, in this embodiment, the support member 21 includes a first connecting rod 211 and a drum plate 212. The first connecting rod 211 is used to connect to the fixed disk 10 and the first transmission rod 40; the drum plate 212 is rotatably connected to the first connecting rod 211 and is used to support the adhesive material 90. Specifically, in this embodiment, the end of the first transmission rod 40 away from the drive disk 30 has a support block, which is connected to the first connecting rod 211. The end of the first connecting rod 211 away from the fixed disk 10 is connected to the drum plate 212. The end of the first connecting rod 211 away from the drum plate 212 is movably disposed in the track 11. The connection point between the first connecting rod 211 and the first transmission rod 40 is located between the two ends of the first connecting rod 211. The surface of the drum plate 212 away from the rotation axis of the drive disk 30 is set as a plane to facilitate the placement of the adhesive material 90.

[0041] In this embodiment, the first connecting rod 211 includes a first segment and a second segment extending along the rotation axis of the drive disk 30, and a transition segment between the first and second segments. The first segment, the transition segment, and the second segment are bent and connected in sequence. A connecting recess is provided on the side of the first segment facing the rotation axis of the drive disk 30. A protrusion is provided between the two ends of the first transmission rod 40, and the protrusion is embedded in the connecting recess, thereby realizing the connection between the first transmission rod 40 and the first connecting rod 211, so that when the first transmission rod 40 moves, it can drive the first connecting rod 211 to move along the track 11. The end of the transition segment near the first segment is farther away from the rotation axis of the drive disk 30 than the end of the transition segment near the second segment. That is, with the point on the central axis of the drive disk 30 as the center, the diameter of the circle containing the second segment is smaller than the diameter of the circle containing the first segment. In this way, even if the length of the track 11 is set to be relatively long in order to ensure sufficient stroke, it can still ensure that the support member 21 can support smaller-sized rubber material 90, thereby further improving the applicability of the tire triangular rubber forming drum device. The second section of the first connecting rod 211, at the end furthest from the first section, is also provided with a bent section. The bent section is connected to the second section and extends along the movement direction of the first connecting rod 211 for rotational connection with the drum plate 212.

[0042] In this embodiment, the tire triangular rubber forming drum device further includes a drum plate driving assembly 50. The drum plate driving assembly 50 is drivenly connected to the drum plate 212 and can drive the drum plate 212 to rotate, thereby rotating the rubber material 90. This allows the rubber material 90 on the drum plate 212 to be rotated onto the steel ring on other devices, realizing the combination of the rubber material 90 and the steel ring. Specifically, in this embodiment, the drum plate 212 is plate-shaped and extends along the rotation axis of the drive disk 30. When the rubber material 90 is wound on the drum plate 212, the width direction of the rubber material 90 is consistent with the extension direction of the drum plate 212. This allows the width direction of the rubber material 90 to be rotated from a horizontal direction parallel to the rotation axis of the drive disk 30 to a direction inclined to the rotation axis of the drive disk 30 when all drum plates 212 are rotated simultaneously, thereby realizing the rotation of the rubber material 90.

[0043] In this embodiment, the drum plate driving assembly 50 includes a movable disk 51 and a plurality of second transmission rods 52. The movable disk 51 is coaxially arranged with the fixed disk 10 and is axially movable. Each second transmission rod 52 is arranged circumferentially along the movable disk 51, connected to the movable disk 51, and movably connected to the drum plate 212. The connection point between the first connecting rod 211 and the drum plate 212 is the first connection point, and the connection point between the second transmission rod 52 and the drum plate 212 is the second connection point. The first and second connection points are arranged axially along the movable disk 51. When the movable disk 51 moves axially, it drives the drum plate 212 to rotate via each second transmission rod 52. Thus, when the movable disk 51 moves axially, it can drive the second transmission rods 52 to move along the axis of the movable disk 51, thereby driving the drum plate 212 to rotate. To avoid interference, in this embodiment, the movable disk 51 is located on the side of the fixed disk 10 away from the drum plate 212, thereby providing sufficient space for axial movement of the movable disk 51. Specifically, as... Figure 6As shown, the second transmission rod 52 in this embodiment includes a first segment, a second segment, and a third segment connected in sequence. The structure of the first segment corresponds to the structure of the first segment and the transition segment of the first connecting rod 211, and is configured as a bent rod. The diameter of the circle containing the circumferential side of the first segment of each second transmission rod 52 near the second segment is larger than the diameter of the circle containing the circumferential side of the first segment of each second transmission rod 52 away from the second segment. The second segment is arranged parallel to the second segment of the first connecting rod 211 and extends axially. The second segment is parallel to the second segment of the first connecting rod 211 along the drive disc 30. The rotating axis is movably connected. The third segment is located on the second transmission rod 52 near the drum plate 212, and the end of the third segment away from the second segment is connected to the drum plate 212. The connection point between the third segment and the drum plate 212 is the second connection point. The end of the drum plate 212 away from the drive disk 30 is connected to the bent section of the first connecting rod 211. The connection point between the drum plate 212 and the bent section is the first connection point. Along the length direction of the drum plate 212, the second connection point is closer to the drive disk 30 than the first connection point. This allows the end of the drum plate 212 away from the bent section to flip away from the movable disk 51 when the second transmission rod 52 drives the drum plate 212 to rotate. It should be noted that the axial direction mentioned in this embodiment refers to the direction of the rotation axis of the drive disk 30, which is also the direction of the central axis of the movable disk 51 and the fixed disk 10. Figure 6 The image shows both the state of the drum plate 212 when it is placed along the axial direction and the state after it is flipped. It should be noted that in actual use, the two states will not occur at the same time. The drum plate 212 will only exist in one of the states, or in a state between the two states.

[0044] The drum plate driving assembly 50 in this embodiment also includes a drum plate 212 driving member. The drum plate 212 driving member is disposed on the side of the movable disk 51 away from the second transmission rod 52 and is drivenly connected to the movable disk 51. The drum plate 212 driving member can drive the movable disk 51 to move axially and drive the second transmission rod 52 to flip the drum plate 212. When the drum plate 212 driving member drives the movable disk 51 to move closer to the drum plate 212, the second transmission rod 52 can flip the drum plate 212, thereby flipping the adhesive 90 onto the steel ring of other devices; when the drum plate 212 driving member drives the movable disk 51 to move away from the drum plate 212, the second transmission rod 52 can restore the drum plate 212 to its axially extended state, thereby facilitating the wrapping of the adhesive 90 around the surface of the drum plate 212. Optionally, the drum plate 212 driving member can be configured as a cylinder, electric cylinder, etc.

[0045] In this embodiment, the first connecting rod 211 has a groove 213 extending axially along the movable disk 51. At least a portion of the second transmission rod 52 is located within the groove 213 and is movable along the groove 213 to drive the drum plate 212 to flip, thereby realizing the flipping of the adhesive material 90. Specifically, one end of the first segment connected to the second segment is provided with a groove opening toward the rotation axis of the drive disk 30. The end of the second segment near the first segment is detachably located within the groove to facilitate embedding the second segment into the groove 213. The second segment of the first connecting rod 211 has a groove 213 extending axially along the movable disk 51. The length directions of the second segment and the groove 213 are both along the axial direction of the movable disk 51, and the length of the second segment is less than the length of the groove 213, so that the second segment can slide along the length direction of the groove 213, thereby driving the drum plate 212 to rotate away from the rotation axis of the drive disk 30 with the first connection point as the center, thereby realizing the flipping of the adhesive material 90. The movable disk 51 can be provided with multiple radially movable slide rails, and the second transmission rod 52 can move radially along the slide rails, thereby avoiding interference between the support member 21 and the second transmission rod 52 when the support member 21 moves radially along the fixed disk 10. Alternatively, the movable disk 51 can be hinged to the second transmission rod 52.

[0046] like Figure 1 , Figure 7As shown, in this embodiment, the tire triangular rubber forming drum device further includes a material head fixing component 60 for fixing the material head of the rubber material 90. The material head fixing component 60 includes a second driving member 61 and a pressing member 62. The second driving member 61 is connected to the first connecting rod 211; the pressing member 62 is rotatably connected to the first connecting rod 211. The second driving member 61 is driven to rotate the pressing member 62 to press and release the rubber material 90 on the drum plate 212, thereby ensuring the stability of the rubber material 90 during winding, so as to facilitate the stitching of the material head and tail of the rubber material 90 and improve the joint quality of the rubber material 90. Specifically, the pressing component 62 is rotatably mounted on the first connecting rod 211. In this embodiment, the end of the pressing component 62 near the fixed disk 10 is rotatably connected to the second section of the first connecting rod 211. The rotation axis of the pressing component 62 is perpendicular to the axial direction of the fixed disk 10. The pressing component 62 is configured as a long strip-shaped plate, and its length direction is consistent with the length direction of the drum plate 212. When the adhesive 90 is wound on the drum plate 212, the pressing component 62 presses the head of the adhesive 90 along the width direction of the adhesive 90, thereby preventing the adhesive 90 from falling off during the winding process and facilitating the sewing of the head and tail of the adhesive 90. Preferably, the side of the pressing component 62 that presses the adhesive 90 can be made of a material with flexibility and / or high friction, thereby improving the fixing effect of the pressing component 62 on the adhesive 90 and preventing damage to the adhesive 90 by the pressing component 62. Optionally, the second driving component 61 can be a cylinder, electric cylinder, etc. Of course, depending on the actual situation, the material head fixing component 60 in this embodiment can also be used to press the material tail or other positions of the adhesive 90.

[0047] In this embodiment, the tire triangular rubber forming drum device further includes a material tail fixing component 70 for fixing the material tail of the rubber material 90. The material tail fixing component 70 includes an adsorption member 71, which is located on the surface of the drum plate 212 and is used to adsorb the rubber material 90, thereby improving the stability of the rubber material 90 and facilitating the sewing of the material head and tail of the rubber material 90. Specifically, as Figure 8 As shown, in this embodiment, the adsorption element 71 is located on the side of the drum plate 212 away from the rotation axis of the drive disk 30. Multiple adsorption elements 71 can be provided, arranged along the length of the drum plate 212 to ensure reliable fixation of the tail of the adhesive material 90. Thus, through the head fixing assembly 60 and the tail fixing assembly 70, both the head and tail of the adhesive material 90 are reliably fixed, facilitating the stitching of the adhesive material 90 joint and improving the joint quality. Of course, the adsorption element 71 can also be used to fix the head of the adhesive material 90, and can be adjusted according to actual needs.

[0048] In this embodiment, the tire triangular rubber forming drum device further includes a first driving member 80, which is located at the center of the driving disk 30. The first driving member 80 is drivenly connected to the driving disk 30 and drives the driving disk 30 to move the support assembly 20 radially. This built-in design of the first driving member 80 facilitates the driving connection between the first driving member 80 and the driving disk 30, while also saving space, simplifying the structure of the tire triangular rubber forming drum device, and reducing manufacturing costs.

[0049] The operation process of the tire triangular rubber forming drum device in this embodiment is as follows: A fixed-length cut rubber material 90, i.e., a triangular rubber strip, is wound around the outer ring of the drum plate 212. The drum plate 212 is connected to the movable disk 51 via the second transmission rod 52. The movable disk 51 is connected to the second driving component 61. The driving component of the drum plate 212 is a cylinder. The cylinder rod extends and pushes the movable disk 51 to move axially. The second transmission rod 52 flips the rubber material 90 wound on the drum plate 212 at an angle greater than 90°, onto the steel rim for subsequent processes. Different lengths of fixed-length rubber material 90 can be wound by adjusting the drum diameter using the driving disk 30 and the first transmission rod 40. To ensure that the rubber material 90 can be smoothly wound on the drum plate 212, the material head fixing component 60 first fixes the material head on the drum plate 212, and then the material tail is attracted and fixed on the drum plate 212 by the adsorption component 71, so that the joint sewing device can sew the material head and material tail together.

[0050] It should be noted that "multiple" in the above embodiments refers to at least two.

[0051] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0052] 1. To solve the problem of low automation in the adjustment of the diameter of the triangular rubber molding drum in the existing technology;

[0053] 2. By setting a drive disc, multiple first transmission rods can be driven to move, which in turn drives the support assembly to move radially along the fixed disc, thereby realizing the adjustment of the drum diameter of the tire triangular rubber forming drum device. Compared with the traditional manual adjustment, it can improve the automation level of drum diameter adjustment, thereby greatly improving the efficiency of drum diameter adjustment. At the same time, the structure is simple and easy to operate, which is conducive to reducing costs and improving the automation level of the tire triangular rubber forming drum device.

[0054] 3. In this embodiment, the drive disc includes multiple sub-discs, thereby increasing the connection range of the first transmission rod. This means that more first transmission rods can be installed in the narrow space between the drive disc and the support assembly, making the support surface of the support assembly for the rubber material closer to a circle, thus improving the support effect on the rubber material. At the same time, it can avoid interference and constraints between the first transmission rod and other components. Furthermore, the first transmission rod in this embodiment is set in an arc shape, which can better adapt to the narrow space between the drive disc and the support assembly, thereby reducing interference and constraints between the first transmission rod and other components. At the same time, the arc-shaped first transmission rod can distribute the stress point over a longer arc length, thereby making the stress distribution of the first transmission rod more uniform, reducing local stress concentration, and thus helping to improve the fatigue life and overall strength of the first transmission rod.

[0055] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tire triangular rubber forming drum device, characterized in that, include: Fixed disk (10); A support assembly (20) for supporting the rubber material (90) is provided circumferentially along the fixed disk (10) and is radially movable along the fixed disk (10); A drive disk (30) is coaxially arranged with the fixed disk (10), and the drive disk (30) is rotatably arranged relative to the fixed disk (10). Multiple first transmission rods (40) are provided, each of which is arc-shaped and arranged circumferentially along the drive disk (30). The drive disk (30) includes multiple sub-discs, each of which is arranged axially along the fixed disk (10). The two ends of each first transmission rod (40) are movably connected to one of the sub-discs and the support assembly (20). When the drive disk (30) rotates, the support assembly (20) is driven to move radially along the fixed disk (10) through each of the first transmission rods (40).

2. The tire triangular rubber forming drum device according to claim 1, characterized in that, Each of the sub-discs rotates synchronously, and each of the first transmission rods (40) connected to the same sub-disc is evenly distributed along the circumference of the sub-disc.

3. The tire triangular rubber forming drum device according to claim 1, characterized in that, The support assembly (20) includes a plurality of support members (21), and the fixed disk (10) has a plurality of radially extending tracks (11). Each support member (21) and each track (11) is arranged circumferentially along the fixed disk (10). The first end of each support member (21) is located in each track (11), and each support member (21) is movably connected to each of the first transmission rods (40). When the fixed disk (10) rotates, each of the first transmission rods (40) drives each support member (21) to move radially along the fixed disk (10).

4. The tire triangular rubber forming drum device according to claim 3, characterized in that, The support member (21) includes: The first connecting rod (211) is used to connect with the fixed plate (10) and the first transmission rod (40); Drum plate (212), which is rotatably connected to the first connecting rod (211), is used to support the adhesive material (90).

5. The tire triangular rubber forming drum device according to claim 1, characterized in that, The support assembly (20) includes a plurality of support members (21), each support member (21) including a first connecting rod (211) and a drum plate (212) for supporting the rubber material (90). The first connecting rod (211) and the drum plate (212) are rotatably connected, and the fixed plate (10) and the first transmission rod (40) are both connected to the first connecting rod (211). The tire triangular rubber forming drum device also includes a drum plate driving assembly (50), which is drivenly connected to the drum plate (212) and can drive the drum plate (212) to rotate, thereby rotating the rubber material (90).

6. The tire triangular rubber forming drum device according to claim 5, characterized in that, The drum drive assembly (50) includes: The movable disk (51) is coaxially arranged with the fixed disk (10), and the movable disk (51) is movably arranged along the axial direction; Multiple second transmission rods (52) are arranged around the circumference of the movable disk (51). The second transmission rods (52) are connected to the movable disk (51) and are movably connected to the drum plate (212). The connection between the first connecting rod (211) and the drum plate (212) is the first connection point, and the connection between the second transmission rod (52) and the drum plate (212) is the second connection point. The first connection point and the second connection point are arranged along the axial direction of the movable disk (51). When the movable disk (51) moves along the axial direction, the drum plate (212) is rotated by each of the second transmission rods (52).

7. The tire triangular rubber forming drum device according to claim 6, characterized in that, The first connecting rod (211) has a groove (213) extending axially along the movable disc (51), at least a portion of the second transmission rod (52) is located in the groove (213) and is movable along the groove (213) to drive the drum plate (212) to flip.

8. The tire triangular rubber forming drum device according to claim 4, characterized in that, The tire triangular rubber forming drum device further includes a material head fixing assembly (60) for fixing the material head of the rubber material (90), the material head fixing assembly (60) including: The second driving member (61) is connected to the first connecting rod (211); A pressing component (62) is rotatably connected to the first connecting rod (211). A second driving component (61) is driven to the pressing component (62) and drives the pressing component (62) to rotate to press and release the adhesive material (90) on the drum plate (212).

9. The tire triangular rubber forming drum device according to claim 4, characterized in that, The tire triangular rubber forming drum device further includes a material tail fixing component (70) for fixing the material tail of the rubber material (90). The material tail fixing component (70) includes an adsorption element (71), which is located on the surface of the drum plate (212) and is used to adsorb the rubber material (90).

10. The tire triangular rubber forming drum apparatus according to any one of claims 1 to 9, characterized in that, The tire triangular rubber forming drum device further includes a first driving member (80), which is located at the center of the driving disk (30). The first driving member (80) is drivingly connected to the driving disk (30) and drives the driving disk (30) to drive the support assembly (20) to move radially.

11. A bead forming system, characterized in that, The tire triangular rubber forming drum device includes any one of claims 1 to 10.

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