Edge covering mechanism for tire forming

Abstract

The edge covering mechanism comprises a base, a rolling drum, a clamping device, a lower rolling device and a side rolling device, and a supporting 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 invention relates to the technical field of tire processing, and in particular to an edge binding mechanism for tire molding. Background Art

[0002] The tire embryo is wrapped around the outside of the tire body to prevent the tire body from mechanical damage, transmit the vehicle's traction and braking force, and cushion the impact of the tire during driving. Rolling the embryo to the tire body is an important process in tire production and has a dominant influence on the tire's molding quality.

[0003] In the prior art, multiple groups of roller devices at fixed positions are generally used to compact the embryo to the tire body, so that the consistency of tire processing is higher and the tire production efficiency is improved. However, the above rolling method is likely to cause uneven adhesion of the embryo on the circumferential surface of the tire body, reducing the processing accuracy. At the same time, when the side rollers apply pressure to the embryo, they cannot fit tightly with the embryo; it is easy to generate rolling pressure along the axial direction of the tire body, resulting in a gap between the tire body and the embryo, making the compaction effect of the embryo poor, reducing the quality of the finished tire. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a edging mechanism for tire molding with higher processing accuracy, which can compact the tire embryo to the tire body and reduce the possibility of a gap between the tire body and the tire embryo.

[0005] Based on the above purpose, the present invention adopts the following technical solution: A rimming mechanism for tire molding, comprising: a base, a rolling drum, a clamping device, a lower rolling device and a side rolling device, wherein the rear side of the base is provided with a support plate arranged in a vertical direction; 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 to clamp the tire body and sleeve the tire body 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, comprising a first rolling member and a second rolling member that can move along the axial direction of the rolling drum; the first rolling member is provided with a first roller, and the second rolling member is provided with a second roller; the side rolling device is at least partially arranged on the left or right side of the rolling drum, and comprises a A third rolling member 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 blank, the rolling drum rotates along the first rotation direction; the first roller and the second roller respectively abut the tire blank on the circumferential surface of the rolling drum, and at the same time, the first roller and the second roller move oppositely along the axial direction of the rolling drum to roll the tire blank; the third roller abuts against the tire blank around the front end surface of the rolling drum, rotates along the second rotation direction, and goes around from the circumferential surface of the rolling drum to the front end surface to roll the tire blank; the fourth roller abuts against the tire blank around the rear end surface of the rolling drum, rotates along the third rotation direction, and goes around from the circumferential surface of the rolling drum to the rear end surface to roll the tire blank.

[0006] Furthermore, 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 along the front-to-back direction and are respectively threadedly connected to the screw.

[0007] Furthermore, the first rolling member includes a connecting portion, a lifting portion and a first roller, the connecting portion is threadedly connected to the screw rod, the lifting portion is arranged on the connecting portion, and the first roller is arranged on the top of the lifting portion.

[0008] Furthermore, the side rolling device includes a conveying platform, a conveying member, a first support platform and a second support platform; the conveying platform is arranged on the left or right side of the base; the conveying member is arranged on the conveying platform; the first support platform and the second support platform are arranged on the conveying member along the front-back direction; the third rolling member is arranged on the first support platform, and the fourth rolling member is arranged on the second support platform; the conveying member can drive the first support platform and the second support platform to move along the left and right directions of the edging mechanism.

[0009] Furthermore, a slide rail is provided on the top of the conveying member along the axial direction of the rolling drum; sliders are provided at the bottom of the first support platform and the second support platform respectively, and the first support platform and the second support platform are both slidably arranged on the slide rail through the sliders.

[0010] 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 transmission-connected to the third rolling member through the transmission member to drive the third rolling member to rotate.

[0011] Furthermore, the third rolling member also 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 a vertical direction; and the third roller is arranged on the top of the support rod.

[0012] Furthermore, the third rolling member also includes a reset member, and the reset member is arranged between the connecting plate and the supporting member.

[0013] Furthermore, the buffer member includes an elastic member and two buffer pads; the elastic member basically extends in the vertical direction, and its two ends are respectively connected to the support member and the connecting plate; the two buffer pads are mounted on the elastic member in the up and down directions to limit the bending angle of the elastic member.

[0014] Furthermore, an adjusting member is provided on the first supporting platform, and the adjusting member is rotatably connected to the transmission member.

[0015] The present invention provides an edge wrapping mechanism for tire molding, wherein 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 a rolling drum to roll the tire blank on the circumferential surface of the rolling drum, so that the rolling of the tire blank is more comprehensive, the fit between the tire blank and the tire body is improved, and a gap between the tire blank and the tire body 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, which respectively rotate around the front and rear end surfaces of the rolling drum, and roll the tire blank around the front and rear end surfaces of the rolling drum, which can improve the fit between the two ends of the tire blank and the tire body, thereby improving the processing accuracy of the tire edge wrapping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view of the hemming mechanism provided according to the present invention; Figure 2 is a left side view of the hemming mechanism provided according to the present invention; Figure 3 is a left side view of the side rolling device provided according to the present invention; Figure 4 is a top view of the side rolling device provided according to the present invention. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 and Figure 2 As shown, this embodiment provides a edging mechanism for tire molding. The edging 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 in a vertical direction is provided on the rear side of the base 11, and the plane where the support plate 111 is located is substantially perpendicular to the front-to-back direction of the edging mechanism. The rolling drum 12 is arranged on the front side of the support plate 111, and an axle rod 121 is provided on the rear side, which is rotatably connected to the support plate 111 through the axle rod 121. The clamping device 13 is at least partially arranged on the front side of the rolling drum 12, and can be moved in the axial direction of the rolling drum 12, and is used to clamp the tire body and sleeve the tire body on the rolling drum 12. The lower rolling device 14 is at least partially arranged below the rolling drum 12 and installed 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 embryo on the circumferential surface of the rolling drum 12 more comprehensively to avoid the gap between the tire embryo and the tire body. More specifically, the first rolling member 141 is provided with a first roller 1411, and the second rolling member 142 is provided with a second roller 1421. The first roller 1411 and the second roller 1421 are used to fit the tire embryo and roll the tire embryo. 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. The third rolling member 151 is provided with a third roller 1511, and the third roller 1511 is used to roll the tire embryo around the front end surface of the rolling drum 12. The fourth rolling member 152 is provided with a fourth roller 1521, which is used to roll the tire blank around the rear end surface of the rolling drum 12. In order to clearly explain the technical solution of the present application, the following is also defined: Figure 1 The left side, right side, top side and bottom side shown, as Figure 2 Front and rear sides shown.

[0019] like Figures 1 to 3 As shown, 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 contact 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 contacts 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 contacts 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.

[0020] Through the above arrangement, the hemming mechanism rolls the tire blank more comprehensively, which can avoid the incomplete rolling of the tire blank and the tire body 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 the rolling force along the axial direction of the rolling drum 12, so that the two ends of the tire blank and the tire body are more closely attached, and the processing accuracy of the hemming mechanism is improved.

[0021] like Figure 1 As shown, the lower rolling device 14 includes a support seat 143 and a screw rod 144. The screw rod 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-to-back direction and are respectively threadedly connected with the screw rod 144. Specifically, the first rolling member 141 is connected to the screw rod 144 in a forward rotation, and the second rolling member 142 is connected to the screw rod 144 in a reverse rotation, so that when the screw rod 144 rotates along the first rotation direction T1, the first rolling member 141 moves toward the front end of the screw rod 144, and the second rolling member 142 moves toward the rear end of the screw rod 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, so that the first rolling member 141 and the second rolling member 142 move in opposite directions along the extension direction of the screw 144. During this process, the first roller 1411 and the second roller 1421 respectively contact the embryo to compact the embryo to the tire body. After the embryo is rolled, the screw 144 rotates to restore the first rolling member 141 and the second rolling member 142 to their original positions. Through the above arrangement, when the first rolling member 141 and the second rolling member 142 are rolling the embryo, the possibility of a gap between the tire body and the embryo can be reduced, thereby 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 be moved in opposite directions to roll the embryo, the screw 144 can also be changed to a slide rail structure, a telescopic mechanical arm or other structures.

[0022] 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 arranged on the connecting portion 1412, and the first roller 1411 is arranged at the top of the lifting portion 1413. The lifting portion 1413 is arranged 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 arranged on the connecting portion 1412. When rolling the tire embryo, the first part of the lifting portion 1413 is lifted until the first roller 1411 is tightly fitted with the tire embryo to compact the tire embryo to the tire body. 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 is symmetrically arranged about the vertical line where the screw 144 is located, and will not be repeated here.

[0023] like Figures 1 to 3 As shown, the side rolling device 15 includes a conveying platform 153, a conveying member 154, a first support platform 155 and a second support platform 156. Specifically, the conveying platform 153 is arranged on the left or right side of the base 11. In this embodiment, the conveying platform 153 is arranged on the left side of the base 11 for description. 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-to-back 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 to control the distance between the third rolling member 151 and the fourth rolling member 152 and the rolling drum 12. When rolling the embryo, the conveyor 154 can transport the first support platform 155 and the second support platform 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 embryo to roll the embryo.

[0024] Specifically, a slide rail 157 is provided on the top of the conveying member 154 along the axial direction of the rolling drum 12. Slide blocks 158 are provided at the bottom of the first support platform 155 and the second support platform 156, respectively, and the first support platform 155 and the second support platform 156 are both slidably arranged on the slide rail 157 through the slide blocks 158. The third roller 1511 can adjust the distance from the front end surface of the rolling drum 12 through the slide rail 157, and the fourth roller 1521 can adjust the distance from the rear end surface of the rolling drum 12 through the slide rail 157, so that the side rolling device 15 is suitable for various types of rolling drums 12, and the third roller 1511 and the fourth roller 1521 can roll the tire blank with higher precision.

[0025] 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 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 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.

[0026] like Figure 4 As shown, the driving member 1551 is provided with an adjusting member 159 at one end close to the first transmission wheel 1552a, and the adjusting member 159 is rotatably connected with 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 different types of rolling drums 12, thereby improving the versatility of the side rolling device 15. Specifically, the adjusting member 159 includes a rotating shaft 1591 and a rotating portion 1592. 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, the outer wall of the rotating shaft 1591 is provided with a first clamping groove 1591a; the rotating part 1592 is provided with a threaded hole 1592a along the radial direction of the rotating part 1592, and the inner wall is provided with a second clamping groove 1592b connected with the threaded hole 1592a. A bolt 1592c is arranged in the threaded hole 1592a. A rotating handle 1592d is arranged on the outer wall of the rotating part 1592, and the rotating handle 1592d basically extends along the radial direction of the rotating part 1592. When it is necessary to manually adjust the third rolling member 151, the rotating part 1592 can be adjusted so that the first clamping groove 1591a and the second clamping groove 1592b are opposite to each other; the bolt 1592c is passed through the threaded hole 1592a and the second clamping groove 1592b, so that the bolt 1592c is at least partially arranged in the first clamping groove 1591a, so that the rotating part 1592 is clamped with the rotating shaft 1591. At this time, the rotating handle 1592d can be used to rotate the rotating part 1592 and the rotating shaft 1591, 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.

[0027] 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 both are correspondingly arranged on the slide rail 157 , which will not be described in detail here.

[0028] like Figures 1 to 3As shown, the third rolling member 151 also 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 on the top of the support rod 1515. When rolling the tire embryo at the front end surface of the rolling drum 12, the conveying member 154 conveys the first support platform 155 toward the rolling drum 12 until the tire 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 normal position, so that the third roller 1511 can fit closely with the tire embryo, and the tire embryo can be rolled more tightly to the tire body, thereby improving the processing accuracy of the hemming mechanism.

[0029] Further, the buffer member 1513 includes an elastic member 1513a and two buffer pads 1513b. The elastic member 1513a extends substantially 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 a thrust to return the support rod 1515 to the correct position. The two buffer pads 1513b are sleeved on the elastic member 1513a in the up-down direction, and when the elastic member 1513a is bent, the two buffer pads 1513b at least partially abut 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. Furthermore, the third rolling member 151 is also provided with a reset member 1516, which is arranged between the connecting plate 1512 and the support member 1514, and the reset member 1516 is used to return the support rod 1515 to the correct position.

[0030] It can be understood that the structure of the fourth rolling member 152 is substantially the same as that of the third rolling member 151 , and the two are arranged corresponding to each other, which will not be described in detail herein.

[0031] In summary, the present application provides a edging mechanism, and when rolling the tire blank, the rolling drum 12 rotates along the first rotation direction T1. The first rolling member 141 lifts the first roller 1411 through the lifting part 1413, and the second rolling member 142 also lifts the second roller 1421 in the same way, so that the first roller 1411 and the second roller 1421 abut against the tire blank. Then, the screw 144 rotates along the first rotation direction T1, so that the first rolling member 141 and the second rolling member 142 move in opposite directions, and the tire blank on the circumferential surface of the rolling drum 12 is fully rolled to avoid a gap between the tire blank and the tire body. Then, the conveying member 154 transports the first support platform 155 and the second support platform 156 to the left side of the rolling drum 12, so that the third roller 1511 and the fourth roller 1521 abut against the rolling drum 12 respectively. The third roller 1511 rotates along the second rotation direction T2, from the circumferential surface of the rolling drum 12 to the front end surface, and rolls the tire blank; the fourth roller 1521 rotates along the third rotation direction T3, from the circumferential surface of the rolling drum 12 to the rear end surface, and rolls the tire blank. In the above manner, the hemming mechanism rolls the tire blank more comprehensively and with higher processing accuracy.

[0032] The above is a description of the embodiments of the present invention. Through the above description of the disclosed embodiments, professionals and technicians in the field can implement or use the present invention. Various modifications to these embodiments will be apparent to professionals and technicians in the field. 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 in this article, but will conform to the widest range consistent with the principles and novelties 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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