Tire bead clamping device and forming machine

Abstract

The utility model provides a tire bead clamping device and a forming machine. The tire bead clamping device comprises a base, a tire bead adsorption mechanism and a clamping mechanism, the tire bead adsorption mechanism is connected with the base, and at least one part of the tire bead adsorption mechanism has magnetism and can magnetically adsorb a steel ring of a tire bead; the clamping mechanism is movably arranged relative to the base and has an open state and a contraction state, and when the clamping mechanism is in the open state, the clamping mechanism can abut against the inner walls of the tire beads and clamp the partition pieces between the tire beads so as to center the tire beads and clamp the partition pieces. The automatic tire bead clamping device solves the problems that in the prior art, an automatic tire bead clamping device is complex in bead feeding structure and low in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, and more specifically, to a tire bead clamping device and a forming machine. Background Technology

[0002] Tire forming machines are increasingly using automatic bead loading to achieve full automation of tire production. Most existing technologies use a six-axis robot equipped with an automatic bead gripping device. The bead and spacer are stacked vertically in an alternating manner. The robot carries a bead gripper to simultaneously grip the bead and spacer, and separates the bead and spacer to achieve the automatic bead loading process.

[0003] Currently, automatic bead clamping devices mainly fall into two categories. One type separates the bead clamping device and the spacer clamping device, with each having its own drive unit to clamp the bead and spacer respectively, achieving separation during movement. This method involves complex clamps, high costs, and is prone to instability during implementation. The other type uses a common drive structure for both bead clamping and spacer clamping, but separation during movement is not possible; it can only separate at a fixed point where the spacer is placed, affecting the overall efficiency of the automatic bead loading function. Utility Model Content

[0004] The main purpose of this utility model is to provide a tire bead clamping device and a forming machine to solve the problems of complex upper ring structure and low efficiency in existing automatic tire bead clamping devices.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tire bead clamping device is provided, comprising: a base; a tire bead adsorption mechanism connected to the base, wherein at least a portion of the tire bead adsorption mechanism is magnetic and capable of magnetically adsorbing the steel ring of the tire bead; and a clamping mechanism movably disposed relative to the base and having an open state and a retracted state. When the clamping mechanism is in the open state, it can respectively abut against the inner wall of the tire bead and clamp the spacer between the tire beads to center the tire bead and clamp the spacer.

[0006] Furthermore, the bead adsorption mechanism is inclined, and when the bead adsorption mechanism adsorbs the bead, along the radial direction of the bead, the height of one end of the bead adsorption mechanism is higher than the height of the other end of the bead adsorption mechanism.

[0007] Furthermore, along the radial direction of the bead, the bead adsorption mechanism includes an inner end near the center line of the bead and an outer end away from the center line of the bead, with the height of the inner end being higher than that of the outer end.

[0008] Furthermore, there are multiple bead adsorption mechanisms, and each bead adsorption mechanism is arranged at intervals along the circumference of the bead.

[0009] Furthermore, the clamping mechanism is longitudinally movable relative to the base, and is located at different longitudinal positions when it abuts against the inner wall of the tire bead and when it clamps the separator.

[0010] Furthermore, the gripping mechanism includes multiple grippers, which are movably arranged radially along the tire bead and spaced apart circumferentially along the tire bead. Each gripper can move closer to or further away from each other, so that the gripping mechanism can switch between an open state and a retracted state.

[0011] Furthermore, the gripping mechanism also includes a driving component, which is drivenly connected to the gripper and drives the gripper to move relative to the bead adsorption mechanism. There may be one driving component, which is simultaneously drivenly connected to all grippers and drives all grippers to move synchronously; or there may be multiple driving components, with each gripper drivenly connected to each driving component, and each driving component driving the gripper to move.

[0012] Furthermore, the gripper is longitudinally movably located at the bottom end of the bead adsorption mechanism. The gripper has a retracted position, an open position, and a positioning position. In the radial direction of movement of the gripper, when the gripper is in the retracted position, it is closer to the center line of the bead than when it is in the open position and the positioning position. In the longitudinal direction of movement of the gripper, the height of the gripper in the open position is lower than that in the positioning position. When the gripper is in the open position, it holds the separator. When the gripper is in the positioning position, it abuts against the inner side of the bead to center and adjust the bead.

[0013] Furthermore, the bead clamping device also includes a bead positioning mechanism, which is movably connected to the bead adsorption mechanism. The bead positioning mechanism can extend into the inside of the bead and abut against the inner wall of the bead to center and adjust the bead.

[0014] According to another aspect of the present invention, a molding machine is provided, including the above-described tire bead clamping device.

[0015] By applying the technical solution of this utility model, the tire bead and spacer are clamped by setting a tire bead adsorption mechanism and a clamping mechanism. Specifically, the tire bead adsorption mechanism does not actually use a clamping method, but rather a magnetic adsorption method. When the tire bead clamping device approaches the tire bead from above, the tire bead adsorption mechanism can use its own magnetism to adhere to the steel ring of the tire bead, thereby clamping the tire bead. The clamping mechanism uses a clamping method. When the clamping mechanism is located in the through hole in the center of the spacer, the clamping mechanism switches to the open state. At this time, the clamping mechanism can selectively abut against the tire bead or clamp the spacer as needed. When clamping the spacer, the clamping mechanism moves together with the spacer and the tire bead on it. The tire bead clamping device rises as a whole to clamp the tire bead and spacer, thereby enabling subsequent conveying and other operations. When the tire bead needs to be placed, the clamping mechanism switches to the retracted state, releasing both the spacer and the tire bead together. When the tire bead's position needs adjustment, the clamping mechanism reopens, abutting against the inner wall of the tire bead. This allows the clamping mechanism to center and adjust the tire bead's position, ensuring accuracy. Simultaneously, because the tire bead adsorption mechanism uses magnetic attraction, the tire bead is adsorbed below it throughout the entire conveying and centering process. Therefore, separation between the tire bead and spacer can occur during the entire up-and-down movement of the clamping device above the tire bead, without waiting for it to descend to its final position. This design simplifies the tire bead clamping process, reducing structural complexity and preventing radial displacement during clamping, thus improving clamping efficiency. Furthermore, it allows for separation of the tire bead and spacer during conveying, as the clamping mechanism's up-and-down movement separates them, improving overall operational efficiency and achieving the dual functions of spacer clamping and tire bead centering. Attached Figure Description

[0016] 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:

[0017] Figure 1 A schematic diagram of the tire bead clamping device of this utility model is shown.

[0018] Figure 2 A layout diagram of the molding machine of this utility model is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. Base; 20. Tire bead adsorption mechanism; 30. Clamping mechanism; 31. Gripper; 32. Drive component; 40. Forming drum; 50. Tire bead storage device; 60. Spacer storage device; 70. Robotic arm device. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] To address the problems of complex upper ring structure and low efficiency in existing automatic bead clamping devices, this invention provides a bead clamping device and a forming machine.

[0025] like Figure 1 The illustrated tire bead clamping device includes a base 10, a tire bead adsorption mechanism 20, and a clamping mechanism 30. The tire bead adsorption mechanism 20 is connected to the base 10, and at least a portion of the tire bead adsorption mechanism 20 is magnetic and capable of magnetically adsorbing the steel ring of the tire bead. The clamping mechanism 30 is movably disposed relative to the base 10 and has an open state and a retracted state. When the clamping mechanism 30 is in the open state, it can abut against the inner wall of the tire bead and clamp the spacer between the tire beads, respectively, to center the tire bead and clamp the spacer.

[0026] This embodiment achieves the clamping of the tire bead and spacer by setting up a tire bead adsorption mechanism 20 and a clamping mechanism 30. Specifically, the tire bead adsorption mechanism 20 does not actually use a clamping method, but rather a magnetic adsorption method. Thus, when the tire bead clamping device approaches the tire bead from above, the tire bead adsorption mechanism 20 can use its own magnetism to adhere to the steel ring of the tire bead, thereby clamping the tire bead. The clamping mechanism 30 uses a clamping method. When the clamping mechanism 30 is located in the through hole in the center of the spacer, the clamping mechanism 30 switches to the open state. At this time, the clamping mechanism 30 can selectively abut against the tire bead or clamp the spacer as needed. When clamping the spacer, the clamping mechanism 30 moves together with the spacer and the tire bead on it. The tire bead clamping device rises as a whole to clamp the tire bead and spacer, thereby enabling subsequent conveying and other operations. When the tire bead needs to be placed, the clamping mechanism 30 switches to the retracted state, releasing the spacer and tire bead together. When the tire bead position needs adjustment, the clamping mechanism 30 reopens, abutting against the inner wall of the tire bead, thus centering and adjusting the tire bead's position to ensure accuracy. Simultaneously, because the tire bead adsorption mechanism 20 uses magnetic attraction, the tire bead is adsorbed below it throughout the entire conveying and centering process. Therefore, separation between the tire bead and spacer can occur throughout the entire up-and-down movement of the clamping device above the tire bead, without waiting for it to descend to its final position. This configuration simplifies the tire bead clamping process, reducing structural complexity and preventing radial displacement during clamping, thus improving clamping efficiency. Furthermore, it allows separation of the tire bead and spacer during conveying, as the clamping mechanism 30 can move up and down to separate them, improving overall operational efficiency and achieving both spacer clamping and tire bead centering functions.

[0027] It should be noted that the radial and circumferential directions along the tire bead mentioned in this embodiment refer to the relative position of the tire bead with the bead clamping device when clamping the tire bead. The spacer is exemplified by a partition plate disposed between stacked tire beads.

[0028] In this embodiment, the bead adsorption mechanism 20 is inclined, and when the bead adsorption mechanism 20 adsorbs the bead, the height of one end of the bead adsorption mechanism 20 is higher than the height of the other end along the radial direction of the bead. That is, the bead adsorption mechanism 20 in this embodiment is inclined vertically, with one end higher than the other. This ensures that the bottom surface of the bead adsorption mechanism 20 matches the inclination of the bead when placed on a trolley or similar device, thereby guaranteeing stable and reliable contact between the bead adsorption mechanism 20 and the upper surface of the bead (tire sidewall), thus ensuring the magnetic effect of the bead adsorption mechanism 20. Of course, the specific inclination angle of the bead adsorption mechanism 20 can be set according to the condition of the bead and other components. In this embodiment, the bead adsorption mechanism 20 forms a 10° angle with the horizontal direction.

[0029] In this embodiment, along the radial direction of the bead, the bead adsorption mechanism 20 includes an inner end near the center line of the bead and an outer end away from the center line of the bead, with the height of the inner end being higher than the height of the outer end. That is, the bead adsorption mechanism 20 in this embodiment is shaped with a higher center and lower outer side, thereby matching the placement of the bead and ensuring the magnetic attraction effect of the bead adsorption mechanism 20 on the bead.

[0030] Considering that the bottom of the bead adsorption mechanism 20 contacts the bead, this embodiment preferably has a magnetic bottom. The middle and top sections can also be magnetically attached or not, depending on the need. Reliable adsorption of the bead and steel ring is achieved through the magnetism at the bottom. Of course, if a magnetic bottom alone is insufficient for stable adsorption, more magnetic positions can be added or the magnetic force increased to ensure the magnetic attraction to the bead.

[0031] In this embodiment, there are multiple bead adsorption mechanisms 20, each spaced apart along the circumference of the bead. This allows multiple bead adsorption mechanisms 20 to simultaneously adsorb at different positions around the bead, thereby improving the reliability of the adsorption. This embodiment provides four bead adsorption mechanisms 20, equally spaced along the circumference of the bead, ensuring a stable and uniform adsorption force. The four bead adsorption mechanisms 20 are arranged with their ends close to each other forming an upward-sloping inner end, and their ends furthest apart forming a downward-sloping outer end. Of course, the specific number of bead adsorption mechanisms 20 can be adjusted as needed and is not limited to the arrangement described in this embodiment. Besides multiple bead adsorption mechanisms 20 arranged circumferentially, the bead adsorption mechanisms 20 can also be arranged in a circumferential annular structure, with the bottom of each mechanism forming a ring structure. This ring structure is magnetic, allowing the ring structure to achieve magnetic adsorption at all 360 degrees of the bead ring.

[0032] Since the clamping mechanism 30 in this embodiment has both the functions of abutting against the inner wall of the tire bead and clamping the spacer, it is arranged to be longitudinally movable relative to the base 10. Thus, when the clamping mechanism 30 abuts against the inner wall of the tire bead and when clamping the spacer, it is located at different longitudinal positions. Since the spacer is generally located below the tire bead, when the clamping mechanism 30 clamps the spacer, it is located in a lower longitudinal position, and when it abuts against the inner wall of the tire bead, it is located in a higher longitudinal position. This allows the clamping mechanism 30 to cooperate with both the tire bead and the spacer, achieving both clamping and centering functions.

[0033] In this embodiment, the gripping mechanism 30 includes a plurality of grippers 31, which are movably arranged along the radial direction of the tire bead. In this embodiment, the grippers 31 are arranged at the bottom of the tire bead adsorption mechanism 20. Of course, the grippers 31 can also be connected to the base 10. Each gripper 31 is spaced apart along the circumference of the tire bead. The function of the grippers 31 is to extend into the through hole of the spacer to grip the spacer. Therefore, in this embodiment, each gripper 31 can move towards and away from each other, thereby switching the gripping mechanism 30 between an open state and a retracted state. When the gripping mechanism 30 is in a retracted state, the grippers 31 are in a retracted position where they are close to each other. At this time, the size of the ring formed by the grippers 31 is small, so that it can be inserted into the through hole of the partition. Then, the gripping mechanism 30 switches to an open state, and the grippers 31 are in an open position where they are far apart from each other. At this time, the size of the ring formed by the grippers 31 is large, and the outer surface of the grippers 31 contacts the inner wall of the through hole or abuts against the inner wall of the tire bead, thereby achieving the gripping of the partition. When the grippers 31 rise, they can drive the partition to rise together, thereby achieving the gripping of the partition and the centering of the tire bead, ensuring the accuracy of the tire bead position.

[0034] It should be noted that the radial direction mentioned in this embodiment can be a horizontal direction or a horizontally inclined direction with a certain angle, i.e., along the generatrix of the cone surface, as long as a radial component exists. Since the bead adsorption mechanism 20 in this embodiment is inclined, the radial movement of the gripper 31 is essentially a horizontally inclined movement.

[0035] In this embodiment, a radially extending rib is also provided on the bottom side of the gripper 31. The rib can act as a stop, so that when the gripper 31 is located in the through hole of the partition and in contact with the inner wall of the through hole, the rib is located below the partition, thereby supporting and lifting the partition and ensuring the stability of the gripper 31 driving the partition to rise.

[0036] Since the gripper 31 and the bead adsorption mechanism 20 in this embodiment are movably coupled, a guide rail structure is provided between the bottom end of the bead adsorption mechanism 20 and the gripper 31. The guide rail structure extends radially along the bead. The guide rail structure can be a combination of a guide rail and a slider. For example, in this embodiment, a groove is provided at the top of the gripper 31 as a guide rail, and a slider extending from the outer end to the inner end is provided at the bottom end of the bead adsorption mechanism 20. The guide rail is embedded in the side of the slider, so that the guide rail and the slider can slide relative to each other. This allows the gripper 31 to slide along the bottom surface of the bead adsorption mechanism 20 in the direction of the line connecting the outer end and the inner end, that is, radially along the bead. Each gripper 31 can adopt the above-described arrangement, so that each gripper 31 can move at the bottom end of the bead adsorption mechanism 20 through the guide rail structure, realizing contraction and opening, thereby achieving clamping of the spacer. Of course, the guide rail structure can also be provided between the gripper 31 and the base 10, and other structures can also be used instead of the guide rail structure.

[0037] In this embodiment, the gripping mechanism 30 further includes a driving component 32, which is drivenly connected to the gripper 31. The driving component 32 can be a motor, cylinder, or other components, and is used to drive the gripper 31 to move relative to the tire bead adsorption mechanism 20, thereby switching the gripping mechanism 30 between an open and retracted state. The driving component 32 can be configured in various ways. This embodiment uses multiple driving components 32, and each gripper 31 is drivenly connected to each driving component 32, so that each driving component 32 drives the gripper 31 to move. During use, a control program can be used to make all driving components 32 drive synchronously, so that all grippers 31 can open and retract synchronously.

[0038] In addition to the above-mentioned configuration, only one drive unit 32 can be used. In this case, the drive unit 32 is simultaneously connected to all grippers 31 through the transmission component, so that one drive unit 32 can drive all grippers 31 to move synchronously at the same time.

[0039] As mentioned above, the gripper 31 in this embodiment has a retracted position and an open position along its radial movement direction. The retracted position is used to extend into the through hole of the spacer, and the open position is used to clamp the spacer. In addition to clamping the spacer, the gripping mechanism 30 in this embodiment also has the function of centering the tire bead. Specifically, in addition to radial movement, the gripper 31 can also move longitudinally. In addition to the aforementioned retracted and open positions, the gripper 31 also has a positioning position. When the gripper 31 is in the retracted position, it is closer to the center line of the tire bead than when it is in the open and positioning positions. That is, the size of the ring formed by the gripper 31 when it is in the retracted position is the smallest. The size relationship between the ring formed when it is in the open and positioning positions can be determined according to the size of the inner ring of the tire bead and the size of the through hole of the spacer. At the same time, when the gripper 31 is in the longitudinal movement direction, the height of the gripper 31 when it is in the open position is lower than the height when it is in the positioning position. That is, the gripper 31 is above the gripper when it is in the open position. In this way, when the gripper 31 is in the open position, the gripping mechanism 30 is also in the open state, and the gripper 31 can hold the spacer. When it is necessary to lower the spacer, the gripper 31 switches to the retracted position, thereby releasing the gripping relationship with the spacer, and the spacer can be lowered. At this time, the gripper 31 can rise a short distance, so that the gripper 31 is located inside the tire bead. The gripper 31 moves to the positioning position, and the gripping mechanism 30 is open again. At this time, the gripper 31 contacts and abuts against the inside of the tire bead, thereby forming a centering adjustment of the tire bead position by the gripper 31 to ensure the accurate positioning of the tire bead. During the centering process, the tire bead adsorption mechanism 20 maintains magnetic attraction to the tire bead, and the tire bead can move within a small range relative to the tire bead adsorption mechanism 20. In this way, the gripping mechanism 30 can not only grasp the spacer, but also center the tire bead, achieving two goals at once.

[0040] Since the gripper 31 needs to move slightly longitudinally when gripping and centering the spacer, the drive member 32 in this embodiment can not only drive the gripper 31 to move along the bottom of the bead adsorption mechanism 20, but also drive the gripper 31 to move up and down relative to the bead adsorption mechanism 20. This allows the spacer to move up a short distance under the drive of the drive member 32 after it is put down, so that it can cooperate with the bead to achieve centering adjustment.

[0041] In addition to the centering and adjustment function, the longitudinal movement of the gripper 31 can also drive the partition and the tire bead above it to move upward together when the gripping mechanism 30 grips the partition, so that the tire bead comes into contact with the tire bead adsorption mechanism 20 and is magnetically attracted together. Then the gripping mechanism 30 moves downward to separate the partition and the tire bead.

[0042] Of course, besides using the clamping mechanism 30 to center the tire bead, an additional mechanism can be provided below the tire bead adsorption mechanism 20. Specifically, the tire bead clamping device also includes a tire bead positioning mechanism, which is movably connected to the bottom of the tire bead adsorption mechanism 20. The tire bead positioning mechanism can extend into the inside of the tire bead and abut against the inner wall of the tire bead to center and adjust the tire bead. In this way, based on the tire bead centering performed by the clamping mechanism 30, the tire bead positioning mechanism also performs tire bead centering adjustment. The specific structural form of the tire bead positioning mechanism can also be set, or it can be set to a structure that is basically the same as that of the clamping mechanism 30, or other structural forms can be adopted.

[0043] like Figure 2 As shown, this embodiment also provides a forming machine, including a forming drum 40, the aforementioned bead clamping device, bead storage device 50, spacer storage device 60, and robotic arm device 70. The bead clamping device is connected to the robotic arm device 70, which drives the bead clamping device to switch between the forming drum 40, the bead storage device 50, and the spacer storage device 60, and also drives the bead clamping device to move up and down. In this embodiment, the bead storage device 50 and the spacer storage device 60 are located on the same side of the forming drum 40, and the bead clamping device is located within the gap between the bead storage device 50 and the spacer storage device 60 and the forming drum 40, thereby reducing the movement path of the bead clamping device and improving efficiency.

[0044] The process of using the tire bead clamping device in this embodiment is as follows:

[0045] 1. The tire bead and spacer are stacked alternately in the tire bead storage device 50. The tire bead clamping device enters above the tire bead storage device 50, so that the clamping mechanism 30 enters from the central through hole of the spacer and clamps the spacer and tire bead.

[0046] 2. The clamping mechanism 30 moves vertically, moving upward to make the tire bead contact the tire bead adsorption mechanism 20, and moving downward to separate the tire bead from the spacer.

[0047] 3. The bead clamping device carries the separated spacer and bead into the spacer storage device 60 above it and places the spacer.

[0048] 4. The clamping mechanism 30 positions the tire bead by radial displacement, so that the center of the tire bead coincides with the center of the tire bead clamping device.

[0049] 5. The bead clamping device delivers the bead to the forming drum 40, completes the automatic bead placement, and returns to start the next cycle.

[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. This invention solves the problems of complex structure and low bead loading efficiency in existing automatic bead clamping devices;

[0053] 2. The process of clamping the tire bead is simplified, thereby reducing the complexity of the structure, preventing radial displacement during tire bead clamping, and improving clamping efficiency;

[0054] 3. The separation of the tire bead and the partition can be carried out during the conveying process. The clamping mechanism can move up and down to separate the partition and the tire bead, thereby improving the overall operating efficiency.

[0055] 4. It achieves the dual functions of clamping the spacer and centering the tire bead.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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 bead clamping device, characterized in that, include: Base (10); A bead adsorption mechanism (20) is connected to the base (10), and at least a portion of the bead adsorption mechanism (20) is magnetic and capable of magnetically adsorbing the steel ring of the bead. A clamping mechanism (30) is movably disposed relative to the base (10) and has an open state and a retracted state. When the clamping mechanism (30) is in the open state, the clamping mechanism (30) can abut against the inner wall of the tire bead and clamp the spacer between the tire beads to center the tire bead and clamp the spacer.

2. The tire bead clamping device according to claim 1, characterized in that, The bead adsorption mechanism (20) is inclined, and when the bead adsorption mechanism (20) adsorbs the bead, along the radial direction of the bead, the height of one end of the bead adsorption mechanism (20) is higher than the height of the other end of the bead adsorption mechanism (20).

3. The tire bead clamping device according to claim 2, characterized in that, Along the radial direction of the bead, the bead adsorption mechanism (20) includes an inner end near the center line of the bead and an outer end away from the center line of the bead, the height of the inner end being higher than the height of the outer end.

4. The tire bead clamping device according to claim 1, characterized in that, There are multiple bead adsorption mechanisms (20), and each bead adsorption mechanism (20) is arranged at intervals along the circumference of the bead.

5. The tire bead clamping device according to claim 1, characterized in that, The clamping mechanism (30) is longitudinally movable relative to the base (10). When the clamping mechanism (30) abuts against the inner wall of the tire bead and clamps the separator, it is located at different longitudinal positions.

6. The tire bead clamping device according to claim 1, characterized in that, The gripping mechanism (30) includes a plurality of grippers (31), which are movably disposed along the radial direction of the tire bead. Each gripper (31) is circumferentially spaced along the tire bead. Each gripper (31) can move toward and away from each other, so that the gripping mechanism (30) can switch between the open state and the retracted state.

7. The bead clamping device according to claim 6, characterized in that, The clamping mechanism (30) further includes a driving member (32), which is drivenly connected to the gripper (31) and drives the gripper (31) to move relative to the bead adsorption mechanism (20). The driving element (32) is a single unit, which is simultaneously connected to all the grippers (31) and drives all the grippers (31) to move synchronously; or There are multiple driving elements (32), and each gripper (31) is driven to connect with each driving element (32), and each driving element (32) drives the gripper (31) to move.

8. The tire bead clamping device according to claim 6, characterized in that, The gripper (31) is longitudinally movably located at the bottom end of the bead adsorption mechanism (20). The gripper (31) has a retracted position, an open position, and a positioning position. Along the radial movement direction of the gripper (31), the gripper (31) is closer to the center line of the bead when it is in the retracted position than when it is in the open position and the positioning position. Along the longitudinal movement direction of the gripper (31), the height of the gripper (31) when it is in the open position is lower than the height when it is in the positioning position. When the gripper (31) is in the open position, the gripper (31) clamps the separator. When the gripper (31) is in the positioning position, the gripper (31) abuts against the inner side of the bead to center and adjust the bead.

9. The tire bead clamping device according to claim 1, characterized in that, The bead clamping device also includes a bead positioning mechanism, which is movably connected to the bead adsorption mechanism (20). The bead positioning mechanism can extend into the inside of the bead and abut against the inner wall of the bead to center and adjust the bead.

10. A molding machine, characterized in that, The device includes the bead clamping device according to any one of claims 1 to 9.

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