Edge covering mechanism for tire forming

Abstract

The utility model discloses an edge covering mechanism for tire forming, which comprises a base, a rolling drum, a clamping device, a lower rolling device and a side rolling device, and a support plate is arranged on the rear side of the base; the rolling drum is rotationally connected to the supporting plate; the clamping device is arranged on the front side of the rolling drum; the lower rolling device is arranged below the rolling drum and comprises a first rolling piece and a second rolling piece; a first roller is arranged on the first rolling piece, and a second roller is arranged on the second rolling piece; the side rolling device comprises a third rolling piece and a fourth rolling piece; a third rolling wheel is arranged on the third rolling piece, and a fourth rolling wheel is arranged on the fourth rolling piece; when the tire blank is rolled, the first roller and the second roller are respectively propped against the tire blank and move back to back; the third roller abuts against the tire blank and winds from the circumferential surface of the rolling drum to the front end surface; the fourth roller abuts against the tire blank and winds from the circumferential face of the rolling drum to the rear end face. Through the arrangement, the compaction effect of the edge covering mechanism on the tire blank is better, and the machining precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing, in particular to a side wrapping mechanism for tire forming. Background Art

[0002] The tire embryo is coated on the outside of the tire body to prevent the tire body from being mechanically damaged, and can transmit the traction force and braking force of the vehicle, and buffer the impact suffered by the tire during driving. Rolling the tire embryo onto the tire body is an important process in tire production, which mainly affects the forming quality of the tire.

[0003] In the prior art, generally, a plurality of roller devices with fixed positions are used to press the tire embryo onto the tire body, so that the continuity of tire processing is higher and the production efficiency of the tire is improved. However, in the above rolling method, the fitting degree of the tire embryo on the circumferential surface of the tire body is likely to be uneven, reducing the processing accuracy. At the same time, when the side roller presses the tire embryo, it cannot be closely attached to the tire embryo; it is easy to generate a rolling force in the axial direction of the tire body, resulting in a gap between the tire body and the tire embryo, so that the compaction effect of the tire embryo is poor, reducing the finished product quality of the tire. Summary of the Invention

[0004] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a side wrapping mechanism for tire forming with higher processing accuracy, which can press the tire embryo onto the tire body and reduce the possibility of generating a gap between the tire body and the tire embryo.

[0005] Based on the above purpose, the utility model adopts the following technical scheme:

[0006] A hemming mechanism for tire forming, comprising: a base, a rolling drum, a clamping device, a lower rolling device and a side rolling device. A support plate arranged vertically is provided at the rear side of the base; the rolling drum is arranged at the front side of the support plate and is rotatably connected to the support plate; the clamping device is at least partially arranged at the front side of the rolling drum and can move along the axial direction of the rolling drum for clamping the carcass and sleeving the carcass on the rolling drum; the lower rolling device is at least partially arranged below the rolling drum and is installed on the top surface of the base, and includes a first rolling member and a second rolling member that can move along the axial direction of the rolling drum; a first roller is provided on the first rolling member, and a second roller is provided on the second rolling member; the side rolling device is at least partially arranged on the left side or the right side of the rolling drum, and includes a third rolling member arranged at the front end of the rolling drum and a fourth rolling member arranged at the rear end of the rolling drum; a third roller is provided on the third rolling member, and a fourth roller is provided on the fourth rolling member; when rolling the tire embryo, the rolling drum rotates in a first rotation direction; the first roller and the second roller respectively abut against the tire embryo on the circumferential surface of the rolling drum. At the same time, the first roller and the second roller move away from each other along the axial direction of the rolling drum to roll the tire embryo; the third roller abuts against the tire embryo surrounding the front end surface of the rolling drum, rotates in a second rotation direction, and winds from the circumferential surface of the rolling drum to the front end surface to roll the tire embryo; the fourth roller abuts against the tire embryo surrounding the rear end surface of the rolling drum, rotates in a third rotation direction, and winds from the circumferential surface of the rolling drum to the rear end surface to roll the tire embryo.

[0007] Further, the lower rolling device includes a support seat and a screw; the screw is at least partially arranged on the support seat and extends along the axial direction of the rolling drum; the first rolling member and the second rolling member are arranged on the support seat in the front-rear direction and are respectively threadedly connected to the screw.

[0008] Further, the first rolling member includes a connecting portion, a lifting portion and a first roller. The connecting portion is threadedly connected to the screw, the lifting portion is arranged on the connecting portion, and the first roller is arranged at the top of the lifting portion.

[0009] Further, the side rolling device includes a transfer table, a transfer member, a first support table and a second support table; the transfer table is arranged on the left side or the right side of the base; the transfer member is arranged on the transfer table; the first support table and the second support table are arranged on the transfer member in the front-rear direction; the third rolling member is arranged on the first support table, and the fourth rolling member is arranged on the second support table; the transfer member can drive the first support table and the second support table to move in the left-right direction of the hemming mechanism.

[0010] Further, a slide rail along the axial direction of the rolling drum is provided at the top of the transfer member; sliders are respectively provided at the bottoms of the first support table and the second support table, and the first support table and the second support table are both slidably arranged on the slide rail through the sliders.

[0011] Furthermore, a driving member is provided on the first support platform, and a transmission member is provided at the bottom of the first support platform; the driving member is in transmission connection with the third rolling member through the transmission member to drive the third rolling member to rotate.

[0012] Furthermore, the third rolling member further includes a connecting plate, a buffer member, a support member, and a support rod; the connecting plate is connected to the transmission member; the support member is connected to the connecting plate through the buffer member; the support rod is arranged on the support member in the vertical direction; the third roller is arranged at the top of the support rod.

[0013] Furthermore, the third rolling member further includes a reset member, and the reset member is arranged between the connecting plate and the support member.

[0014] Furthermore, the buffer member includes an elastic member and two buffer pads; the elastic member extends basically in the vertical direction, and the two ends are respectively connected to the support member and the connecting plate; the two buffer pads are sleeved on the elastic member in the up-and-down direction to limit the bending angle of the elastic member.

[0015] Furthermore, an adjusting member is provided on the first support platform, and the adjusting member is rotatably connected to the transmission member.

[0016] The utility model provides a bead wrapping mechanism for tire forming. A first rolling member and a second rolling member that move along the axial direction of the rolling drum are provided on the lower side of the rolling drum to roll the tire embryo on the circumferential surface of the rolling drum, so that the rolling of the tire embryo is more comprehensive, the adhesion between the tire embryo and the carcass is improved, and the gap between the tire embryo and the carcass is avoided; at the same time, a third rolling member and a fourth rolling member are respectively provided at the front and rear ends of the rolling drum, and rotate around the front and rear end faces of the rolling drum respectively to roll the tire embryo around the front and rear end faces of the rolling drum, which can improve the adhesion between the two ends of the tire embryo and the carcass, thereby improving the processing accuracy of the tire bead wrapping device. Description of the Drawings

[0017] Figure 1 is the front view of the bead wrapping mechanism provided by the utility model;

[0018] Figure 2 is the left view of the bead wrapping mechanism provided by the utility model;

[0019] Figure 3 is the left view of the side rolling device provided by the utility model;

[0020] Figure 4 is the top view of the side rolling device provided by the utility model. Detailed Embodiments

[0021] Combined with the embodiments of the present utility model, the technical solutions in the embodiments will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figure 1 and Figure 2 shown, this embodiment provides a bead wrapping mechanism for tire forming. The bead wrapping mechanism includes a base 11, a rolling drum 12, a clamping device 13, a lower rolling device 14, and a side rolling device 15. Specifically, a support plate 111 arranged vertically is provided at the rear side of the base 11, and the plane where the support plate 111 is located is substantially perpendicular to the front-rear direction of the bead wrapping mechanism. The rolling drum 12 is arranged at the front side of the support plate 111, and a shaft rod 121 is provided at the rear side, and it is rotationally connected to the support plate 111 through the shaft rod 121. The clamping device 13 is at least partially arranged at the front side of the rolling drum 12 and can move along the axial direction of the rolling drum 12, and is used to clamp the carcass and sleuth the carcass on the rolling drum 12. The lower rolling device 14 is at least partially arranged below the rolling drum 12 and is arranged on the top surface of the base 11, and includes a first rolling member 141 and a second rolling member 142 that can move along the axial direction of the rolling drum 12, so that the lower rolling device 14 can roll the tire blank on the circumferential surface of the rolling drum 12 more comprehensively and avoid gaps between the tire blank and the carcass. More specifically, a first roller 1411 is provided on the first rolling member 141, and a second roller 1421 is provided on the second rolling member 142. The first roller 1411 and the second roller 1421 are used to fit the tire blank and roll the tire blank. The side rolling device 15 is at least partially arranged on the left or right side of the rolling drum 12, and includes a third rolling member 151 arranged at the front end of the rolling drum 12 and a fourth rolling member 152 arranged at the rear end of the rolling drum 12. A third roller 1511 is provided on the third rolling member 151, and the third roller 1511 is used to roll the tire blank around the front end face of the rolling drum 12. A fourth roller 1521 is provided on the fourth rolling member 152, and the fourth roller 1521 is used to roll the tire blank around the rear end face of the rolling drum 12. In order to clearly illustrate the technical solutions of this application, the left side, right side, upper side, and lower side as Figure 1 shown, and the front side and rear side as Figure 2 shown are also defined.

[0023] As Figures 1 to 3As shown in the figure, when rolling the embryo, the rolling drum 12 rotates along the first rotation direction T1. The first roller 1411 and the second roller 1421 are respectively in contact with the embryo on the circumferential surface of the rolling drum 12. At the same time, the first roller 1411 and the second roller 1421 move away from each other along the axial direction of the rolling drum 12 to roll the embryo; the third roller 1511 is in contact with the embryo around the front end surface of the rolling drum 12, rotates along the second rotation direction T2, and winds from the circumferential surface of the rolling drum 12 to the front end surface to roll the embryo; the fourth roller 1521 is in contact with the embryo around the rear end surface of the rolling drum 12, rotates along the third rotation direction T3, and winds from the circumferential surface of the rolling drum 12 to the rear end surface to roll the embryo.

[0024] Through the above settings, the edge wrapping mechanism rolls the embryo more comprehensively, which can avoid the embryo and the carcass being rolled incompletely due to the gap between the rollers. At the same time, the third roller 1511 and the fourth roller 1521 roll from the circumferential surface to the end surface, which can avoid generating a rolling force along the axial direction of the rolling drum 12, making the two ends of the embryo fit more tightly with the carcass and improving the processing accuracy of the edge wrapping mechanism.

[0025] As Figure 1 shown, the lower rolling device 14 includes a support base 143 and a screw 144. The screw 144 is at least partially arranged on the support base 143 and extends along the axial direction of the rolling drum 12. The first rolling member 141 and the second rolling member 142 are arranged on the support base 143 in the front-rear direction and are respectively threadedly connected to the screw 144. Specifically, the first rolling member 141 is connected to the screw 144 with a right-handed thread, and the second rolling member 142 is connected to the screw 144 with a left-handed thread. Thus, when the screw 144 rotates along the first rotation direction T1, the first rolling member 141 moves towards the front end of the screw 144, and the second rolling member 142 moves towards the rear end of the screw 144. Further, the first rolling member 141 and the second rolling member 142 are initially in contact with each other. When rolling the embryo, the screw 144 rotates along the first rotation direction T1, causing the first rolling member 141 and the second rolling member 142 to move away from each other along the extension direction of the screw 144. During this process, the first roller 1411 and the second roller 1421 are respectively in contact with the embryo to compact the embryo onto the carcass. After the embryo rolling is completed, the screw 144 rotates back to make the first rolling member 141 and the second rolling member 142 return to their original positions. Through the above settings, when the first rolling member 141 and the second rolling member 142 roll the embryo, the possibility of a gap appearing between the carcass and the embryo can be reduced, improving the processing accuracy of the tire. It can be understood that in other embodiments, as long as the first rolling member 141 and the second rolling member 142 can move away from each other to roll the embryo, the screw 144 can also be redesigned as a slide rail structure, a telescopic robotic arm or other structures.

[0026] More specifically, the first rolling member 141 includes a connecting portion 1412, a lifting portion 1413, and a first roller 1411. The connecting portion 1412 is threadedly connected to the screw 144. The lifting portion 1413 is provided on the connecting portion 1412, and the first roller 1411 is provided at the top of the lifting portion 1413. Among them, the lifting portion 1413 is provided on the left or right side of the connecting portion 1412, and the lifting portion 1413 is used to adjust the distance between the first roller 1411 and the tire embryo. The lifting portion 1413 includes a first part for lifting and a second part fixedly provided on the connecting portion 1412. When rolling the tire embryo, the first part of the lifting portion 1413 lifts until the first roller 1411 is in close contact with the tire embryo to compact the tire embryo onto the carcass. It can be understood that the structure of the second rolling member 142 is basically the same as that of the first rolling member 141, and it is symmetrically arranged with respect to the vertical line where the screw 144 is located, which will not be elaborated here.

[0027] As Figures 1 to 3 shown, the side rolling device 15 includes a conveying table 153, a conveying member 154, a first support table 155, and a second support table 156. Specifically, the conveying table 153 is provided on the left or right side of the base 11. In this embodiment, the case where the conveying table 153 is provided on the left side of the base 11 will be described. The conveying member 154 is provided on the conveying table 153. The first support table 155 and the second support table 156 are arranged on the conveying member 154 in the front-rear direction. The third rolling member 151 is provided on the first support table 155, and the fourth rolling member 152 is provided on the second support table 156. The conveying member 154 can drive the first support table 155 and the second support table 156 to move in the left-right direction of the edge wrapping mechanism to control the distance between the third rolling member 151 and the fourth rolling member 152 and the rolling drum 12. When rolling the tire embryo, the conveying member 154 can transport the first support table 155 and the second support table 156 to the left end of the rolling drum 12, so that the third roller 1511 and the fourth roller 1521 are respectively in contact with the tire embryo to roll the tire embryo.

[0028] Specifically, a slide rail 157 in the axial direction of the rolling drum 12 is provided on the top of the conveying member 154. Sliders 158 are respectively provided at the bottoms of the first support table 155 and the second support table 156. The first support table 155 and the second support table 156 are both slidably provided on the slide rail 157 through the sliders 158. The distance between the third roller 1511 and the front end face of the rolling drum 12 can be adjusted through the slide rail 157, and the distance between the fourth roller 1521 and the rear end face of the rolling drum 12 can be adjusted through the slide rail 157, so that the side rolling device 15 is applicable to various models of rolling drums 12, and the rolling accuracy of the third roller 1511 and the fourth roller 1521 on the tire embryo is higher.

[0029] A driving member 1551 is provided on the first support platform 155, and a transmission member 1552 is provided at the bottom of the first support platform 155; the driving member 1551 is drivingly connected to the third rolling member 151 through the transmission member 1552, and can drive the third rolling member 151 to rotate. Specifically, the transmission member 1552 includes a first transmission wheel 1552a, a second transmission wheel 1552b, and a transmission belt 1552c. The driving member 1551 is connected to the first transmission wheel 1552a to drive the first transmission wheel 1552a to rotate. The first transmission wheel 1552a is drivingly connected to the second transmission wheel 1552b through the transmission belt 1552c to drive the second transmission wheel 1552b to rotate. The third rolling member 151 is connected to the second transmission wheel 1552b and rotates coaxially with the second transmission wheel 1552b.

[0030] As Figure 4 shown, an adjusting member 159 is provided at one end of the driving member 1551 close to the first transmission wheel 1552a. The adjusting member 159 is rotatably connected to the transmission member 1552. The adjusting member 159 is used to adjust the initial position of the third rolling member 151, that is, to adjust the angle between the axial direction of the third roller 1511 and the axial direction of the rolling drum 12, so that the side rolling device 15 is applicable to rolling drums 12 of different models and improves the versatility of the side rolling device 15. Specifically, the adjusting member 159 includes a rotating shaft 1591 and a rotating portion 1592. Among them, the rotating shaft 1591 is connected to the first transmission wheel 1552a and can rotate coaxially with the first transmission wheel 1552a. The rotating portion 1592 is sleeved on the rotating shaft 1591. Further, a first card slot 1591a is provided on the outer wall of the rotating shaft 1591; a threaded hole 1592a is provided on the rotating portion 1592 in the radial direction of the rotating portion 1592, and a second card slot 1592b communicating with the threaded hole 1592a is provided on the inner wall. A bolt 1592c is provided in the threaded hole 1592a. A rotating handle 1592d is provided on the outer wall of the rotating portion 1592, and the rotating handle 1592d extends substantially in the radial direction of the rotating portion 1592. When manual adjustment of the third rolling member 151 is required, the rotating portion 1592 can be adjusted to align the first card slot 1591a with the second card slot 1592b; the bolt 1592c is passed through the threaded hole 1592a and the second card slot 1592b so that at least part of the bolt 1592c is disposed in the first card slot 1591a to engage the rotating portion 1592 with the rotating shaft 1591. At this time, the rotating portion 1592 and the rotating shaft 1591 can be rotated by the rotating handle 1592d, and the third rolling member 151 can be driven through the transmission member 1552 to adjust the initial position of the third rolling member 151.

[0031] It can be understood that the structure of the second support platform 156 is basically the same as that of the first support platform 155, and the two are correspondingly arranged on the slide rail 157, which will not be elaborated here.

[0032] As Figures 1 to 3As shown, the third rolling member 151 further includes a connecting plate 1512, a buffer member 1513, a support member 1514, and a support rod 1515. The connecting plate 1512 is connected to the transmission member 1552. The support member 1514 is connected to the connecting plate 1512 through the buffer member 1513. The support rod 1515 is arranged on the support member 1514 in the vertical direction, and the third roller 1511 is arranged at the top of the support rod 1515. When rolling the embryo at the front end face of the rolling drum 12, the transfer member 154 transfers the first support platform 155 towards the rolling drum 12 until the embryo slightly presses the third roller 1511. At this time, the buffer member 1513 provides an upward thrust to the support member 1514, forcing the support rod 1515 to return to the correct position, so that the third roller 1511 can be closely attached to the embryo, and the embryo can be rolled more tightly onto the carcass, improving the processing accuracy of the edge wrapping mechanism.

[0033] Further, the buffer member 1513 includes an elastic member 1513a and two buffer pads 1513b. The elastic member 1513a extends basically in the vertical direction, and its two ends are respectively connected to the support member 1514 and the connecting plate 1512, and is used to provide the thrust for the support rod 1515 to return to the correct position. The two buffer pads 1513b are sleeved on the elastic member 1513a in the up-and-down direction. When the elastic member 1513a is bent, at least part of the two buffer pads 1513b abuts to limit the bending angle of the elastic member 1513a. The buffer pad 1513b is made of rubber material to reduce the wear between the two buffer pads 1513b. Further still, the third rolling member 151 is further provided with a reset member 1516. The reset member 1516 is arranged between the connecting plate 1512 and the support member 1514, and the reset member 1516 is used to make the support rod 1515 return to the correct position.

[0034] It can be understood that the structure of the fourth rolling member 152 is basically the same as that of the third rolling member 151, and the two are arranged corresponding to each other, so details are not described herein again.

[0035] In summary, the present application provides a hemming mechanism. When rolling the embryo, the rolling drum 12 rotates along the first rotation direction T1. The first rolling member 141 raises the first roller 1411 through the lifting portion 1413, and the second rolling member 142 also raises the second roller 1421 in the same manner, so that the first roller 1411 and the second roller 1421 are in contact with the embryo. Then, the screw 144 rotates along the first rotation direction T1, causing the first rolling member 141 and the second rolling member 142 to move away from each other, and comprehensively rolling the embryo on the circumferential surface of the rolling drum 12 to prevent a gap from being generated between the embryo and the carcass. Then, the conveying member 154 transports the first support table 155 and the second support table 156 to the left side of the rolling drum 12, so that the third roller 1511 and the fourth roller 1521 are respectively in contact with the rolling drum 12. The third roller 1511 rotates along the second rotation direction T2 and winds from the circumferential surface of the rolling drum 12 to the front end surface to roll the embryo; the fourth roller 1521 rotates along the third rotation direction T3 and winds from the circumferential surface of the rolling drum 12 to the rear end surface to roll the embryo. In the above manner, the hemming mechanism rolls the embryo more comprehensively and has higher processing accuracy.

[0036] The above is the description of the embodiments of the present invention. Through the above description of the disclosed embodiments, those skilled in the art can implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel points disclosed herein.

Claims

1. A rimming mechanism for tire molding, characterized in that: include A base (11), wherein a support plate (111) is provided on the rear side of the base (11) and is arranged in a vertical direction; a rolling drum (12), the rolling drum (12) being arranged on the front side of the support plate (111) and being rotatably connected to the support plate (111); a clamping device (13), the clamping device (13) being at least partially disposed on the front side of the rolling drum (12), being movable along the axial direction of the rolling drum (12), and being used for clamping the carcass and sleeve the carcass on the rolling drum (12); a lower rolling device (14), the lower rolling device (14) being at least partially disposed below the rolling drum (12), mounted on the top surface of the base (11), and comprising a first rolling member (141) and a second rolling member (142) movable along the axial direction of the rolling drum (12); the first rolling member (141) being provided with a first roller (1411), and the second rolling member (142) being provided with a second roller (1421); a side rolling device (15), the side rolling device (15) being at least partially arranged on the left side or the right side of the rolling drum (12), comprising a third rolling member (151) arranged at the front end of the rolling drum (12) and a fourth rolling member (152) arranged at the rear end of the rolling drum (12); the third rolling member (151) being provided with a third roller (1511), and the fourth rolling member (152) being provided with a fourth roller (1521); When rolling the tire embryo, the rolling drum (12) rotates along the first rotation direction T1; the first roller (1411) and the second roller (1421) respectively abut against the tire embryo on the circumferential surface of the rolling drum (12), and at the same time, the first roller (1411) and the second roller (1421) move in opposite directions along the axial direction of the rolling drum (12) to roll the tire embryo; the third roller (1511) abuts against the tire embryo around the front end surface of the rolling drum (12), rotates along the second rotation direction T2, and rolls the tire embryo from the circumferential surface of the rolling drum (12) to the front end surface; the fourth roller (1521) abuts against the tire embryo around the rear end surface of the rolling drum (12), rotates along the third rotation direction T3, and rolls the tire embryo from the circumferential surface of the rolling drum (12) to the rear end surface.

2. The hemming mechanism for tire molding according to claim 1, characterized in that: The lower rolling device (14) comprises a support seat (143) and a screw (144); the screw (144) is at least partially arranged on the support seat (143) and extends along the axial direction of the rolling drum (12); the first rolling member (141) and the second rolling member (142) are arranged on the support seat (143) along the front-rear direction and are respectively threadedly connected to the screw (144).

3. The hemming mechanism for tire molding as claimed in claim 2, characterized in that: The first rolling member (141) comprises a connecting portion (1412), a lifting portion (1413) and the first roller (1411); the connecting portion (1412) is threadedly connected to the screw rod (144); the lifting portion (1413) is arranged on the connecting portion (1412); and the first roller (1411) is arranged on the top of the lifting portion (1413).

4. The hemming mechanism for tire molding according to claim 1, characterized in that: The side rolling device (15) comprises a conveying platform (153), a conveying member (154), a first support platform (155) and a second support platform (156); the conveying platform (153) is arranged on the left side or the right side of the base (11); the conveying member (154) is arranged on the conveying platform (153); the first support platform (155) and the second support platform (156) are arranged on the conveying member (154) along the front-rear direction; the third rolling member (151) is arranged on the first support platform (155), and the fourth rolling member (152) is arranged on the second support platform (156); the conveying member (154) can drive the first support platform (155) and the second support platform (156) to move along the left-right direction of the hemming mechanism.

5. The hemming mechanism for tire molding according to claim 4, characterized in that: A slide rail (157) is provided on the top of the conveying member (154) along the axial direction of the rolling drum (12); sliders (158) are provided on the bottoms of the first support platform (155) and the second support platform (156), respectively; the first support platform (155) and the second support platform (156) are both slidably arranged on the slide rail (157) via the sliders (158).

6. The hemming mechanism for tire molding according to claim 4, characterized in that: A driving member (1551) is provided on the first support platform (155), and a transmission member (1552) is provided at the bottom of the first support platform (155); the driving member (1551) is connected to the third rolling member (151) via the transmission member (1552) to drive the third rolling member (151) to rotate.

7. The hemming mechanism for tire molding according to claim 6, characterized in that: The third rolling member (151) further comprises a connecting plate (1512), a buffer member (1513), a support member (1514) and a support rod (1515); the connecting plate (1512) is connected to the transmission member (1552); the support member (1514) is connected to the connecting plate (1512) via the buffer member (1513); the support rod (1515) is arranged on the support member (1514) in a vertical direction; and the third roller (1511) is arranged on the top of the support rod (1515).

8. The hemming mechanism for tire molding according to claim 7, characterized in that: The third rolling member (151) further comprises a reset member (1516), wherein the reset member (1516) is arranged between the connecting plate (1512) and the supporting member (1514).

9. The hemming mechanism for tire molding according to claim 7, characterized in that: The buffer member (1513) comprises an elastic member (1513a) and two buffer pads (1513b); the elastic member (1513a) extends substantially in a vertical direction, and its two ends are respectively connected to the support member (1514) and the connecting plate (1512); the two buffer pads (1513b) are sleeved on the elastic member (1513a) in an up-down direction, and are used to limit the bending angle of the elastic member (1513a).

10. The hemming mechanism for tire molding according to claim 6, characterized in that: An adjusting member (159) is provided on the first supporting platform (155), and the adjusting member (159) is rotatably connected to the transmission member (1552).

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