Agricultural tire sidewall drum lifting mechanism

Abstract

The utility model provides a lifting mechanism for a sidewall drum of a agricultural tire. The lifting mechanism for the sidewall drum of the agricultural tire comprises a drum body, the first driving structure is arranged on the drum body; the second driving structure is arranged on the first driving structure in a sliding mode in the axial direction of the drum body; the supporting structure is arranged on the second driving structure in a sliding mode in the axial direction of the drum body, the base plate is movably installed on the second driving structure, the supporting structure abuts against the base plate, and the supporting structure can drive the base plate to move in the radial direction of the drum body. The problems that in the prior art, after a tire body is attached, the two sides of a sizing material are in a suspended state and cannot be rolled, manual treatment is needed, and when the tire side sizing material is attached after a steel wire ring is reversely wrapped, the outer side of the sizing material is not effectively supported, the attaching effect is poor, and manual intervention is needed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing, in particular to a tire sidewall drum lifting mechanism. Background Art

[0002] At present, agricultural radial tire building machines use a two-step large-diameter bonding process to produce tires, with a lot of manual intervention in the middle links, such as material bonding joint intervention, positive rubber material intervention, wire ring intervention, etc. Too much manual intervention will lead to reduced tire quality and efficiency; in addition, existing equipment has problems such as changing materials and specifications is particularly cumbersome, takes a long time, has high labor intensity, and has low equipment utilization rate. Utility Model Content

[0003] The main purpose of the utility model is to provide a tire sidewall drum lifting mechanism to solve the problems in the prior art that after the tire body is pasted, both sides of the rubber material are suspended in the air and cannot be rolled, requiring manual processing; when the tire sidewall rubber material is pasted after the wire ring is reversed, the outer side of the rubber material has no effective support, the pasting effect is poor, and manual intervention is required.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a sidewall drum lifting mechanism is provided, including a drum body; a first driving structure, the first driving structure is arranged on the drum body; a second driving structure, the second driving structure is slidingly arranged on the first driving structure along the axial direction of the drum body; a pad and a support structure, the support structure is slidingly arranged on the second driving structure along the axial direction of the drum body, the pad is movably installed on the second driving structure, the support structure abuts against the pad, and the support structure can drive the pad to move along the radial direction of the drum body.

[0005] Furthermore, a first sealed cavity is formed between the second driving structure and the supporting structure, and the second driving structure has an extension portion extending into the first sealed cavity, and the first sealed cavity is divided into independent first and second chambers along the axial extension portion of the drum body, and the supporting structure is driven to slide on the second driving structure by adjusting the air pressure of the first chamber or the second chamber.

[0006] Further, the supporting structure includes a main body portion, a first protrusion extending toward the second driving structure at the first end of the main body portion along the axial direction of the drum body, the first protrusion contacts the outer peripheral surface of the second driving structure, and a first chamber is formed between the extending portion and the first protrusion; an annular stopper, an annular stopper is arranged at the second end of the main body portion along the axial direction of the drum body, the annular stopper is slidably arranged on the second driving structure, and a second chamber is formed between the annular stopper and the extending portion.

[0007] Furthermore, the main body has a first guiding inclined surface, the pad has a second guiding inclined surface abutting against the first guiding inclined surface, and the first guiding inclined surface and the second guiding inclined surface are slidably matched.

[0008] Furthermore, the second driving structure is provided with a limiting structure, the backing plate is provided with a matching structure, and the limiting structure and the matching structure are movably arranged along the radial direction of the drum body.

[0009] Furthermore, the limiting structure is a cavity extending radially along the drum body, and the matching structure is a connecting column extending radially along the drum body, and the connecting column is slidably matched with the cavity.

[0010] Further, the second driving structure includes a first cylinder body, which is slidably connected to the first driving structure and has an extension portion; wall panels, which are arranged in pairs at both ends of the first cylinder body along the axial direction of the drum body, and the pads are movably installed on the wall panels, the wall panels extend radially along the drum body, and an installation area is formed between the two wall panels along the axial direction of the drum body, the support structure is located inside the installation area, and at least a portion of the pad is located inside the installation area and abuts against the support structure.

[0011] Furthermore, a second sealed cavity is formed between the first drive structure and the second drive structure. The first drive structure has a convex ring structure extending into the second sealed cavity. The convex ring structure along the axial direction of the drum body divides the second sealed cavity into independent third and fourth chambers. The second drive structure is driven to slide on the first drive structure by adjusting the air pressure in the third chamber or the fourth chamber.

[0012] Furthermore, the first driving structure includes a second cylinder body, which is fixedly connected to the drum body, and a convex ring structure is arranged on the second cylinder body, and the end of the convex ring structure facing away from the drum body contacts and slides with the second driving structure; the tire side drum lifting mechanism also includes a second stopper and a third stopper arranged on the second driving structure at axial intervals along the drum body, and the second stopper and the third stopper slide with the second driving structure, and a third chamber is formed between the second stopper and the convex ring structure, and a fourth chamber is formed between the convex ring structure and the third stopper.

[0013] Furthermore, the tire side drum lifting mechanism also includes a third driving structure, which is arranged between the first driving structure and the second driving structure. The third driving structure is slidably arranged on the first driving structure along the axial direction of the drum body; the second driving structure is slidably arranged on the third driving structure along the axial direction of the drum body.

[0014] Furthermore, a third sealed chamber is formed between the third drive structure and the second drive structure, and a fourth sealed chamber is formed between the third drive structure and the first drive structure. The third drive structure has an upper convex ring extending into the third sealed chamber and a lower convex ring extending into the fourth sealed chamber. The upper convex ring divides the third sealed chamber into a fifth chamber and a sixth chamber, and the second drive structure is driven to slide on the third drive structure by adjusting the air pressure in the fifth chamber or the sixth chamber; the lower convex ring divides the fourth sealed chamber into a seventh chamber and an eighth chamber, and the third drive structure is driven to slide on the first drive structure by adjusting the air pressure in the seventh chamber or the eighth chamber.

[0015] Furthermore, the third driving structure includes a third cylinder body and an upper convex ring and a lower convex ring arranged on the third cylinder body, the upper convex ring contacts and slides with the inner circumferential wall surface of the first cylinder body of the second driving structure, the two wall panels of the second driving structure extend to contact and slide with the third cylinder body, a fifth chamber is formed between the upper convex ring and one of the wall panels, and a sixth chamber is formed between the upper convex ring and the other wall panel; the convex ring structure of the first driving structure contacts and slides with the third cylinder body, the first driving structure also includes a limiting ring, one end of the limiting ring is fixedly mounted on the second cylinder body of the first driving structure, the other end of the limiting ring contacts and slides with the third cylinder body, the limiting ring and the convex ring structure are spaced apart along the axial direction of the drum body, a seventh chamber is formed between the lower convex ring and the limiting ring, and an eighth chamber is formed between the lower convex ring and the convex ring structure.

[0016] Furthermore, the upper convex ring and the lower convex ring are arranged at intervals along the axial direction of the drum body.

[0017] By applying the technical solution of the utility model, the following technical effects are achieved:

[0018] 1. Through a plurality of different driving structures, the pad supporting the carcass can be kept at different processing positions, which is convenient for various attachments of the carcass, improves efficiency and quality of the finished carcass and reduces manual operations.

[0019] 2. By dividing the chambers into different parts and using air pressure to drive the parts, it is convenient to drive the parts.

[0020] 3. By adding different limit stops, the stability of the pad movement is increased, which facilitates subsequent attachment operations and reduces construction errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the sidewall drum lifting mechanism of the present application;

[0023] Figure 2 It is a structural schematic diagram of the tire sidewall drum lifting mechanism of the first embodiment;

[0024] Figure 3 It is a structural schematic diagram of the tire sidewall drum lifting mechanism of the second embodiment;

[0025] Figure 4 This is a schematic diagram of the installation structure of the first drive structure, the second drive structure and the third drive structure in the second embodiment.

[0026] The above drawings include the following reference numerals:

[0027] 1. Drum body; 11. Second stopper; 12. Third stopper; 2. First driving structure; 21. Second sealing chamber; 211. Third chamber; 212. Fourth chamber; 22. Protruding ring structure; 23. Second cylinder body; 24. Limiting ring; 3. Second driving structure; 31. First sealing chamber; 311. First chamber; 312. Second chamber; 32. Extension; 33. First cylinder body; 34. Wallboard; 35. Limiting structure; 4. Pad; 41. Second guiding slope; 42. Matching structure; 5. Support structure; 51. Main body; 511. First protrusion; 512. First guiding slope; 52. Annular stopper; 6. Third driving structure; 61. Third sealing chamber; 611. Fifth chamber; 612. Sixth chamber; 62. Fourth sealing chamber; 621. Seventh chamber; 622. Eighth chamber; 63. Upper convex ring; 64. Lower convex ring; 65. Third cylinder body; 7. Limit rod. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0031] In order to solve the problems in the prior art that after the tire body is applied, both sides of the rubber material are in a suspended state and cannot be rolled, and manual processing is required; when the steel wire ring is reversed and the tire sidewall rubber material is applied, there is no effective support on the outside of the rubber material, the bonding effect is not good, and manual intervention is required, the utility model provides a farmer's tire sidewall drum lifting mechanism, which changes the position of the pad by setting multiple drive structures to solve the problems in the prior art.

[0032] Embodiment 1

[0033] A lifting mechanism for the tire side drum of a tire, see Figure 1 and Figure 2The lifting mechanism of the tire sidewall drum includes a drum body 1, a first driving structure 2, a second driving structure 3, a pad 4 and a supporting structure 5. The first driving structure 2 is arranged on the drum body 1, and the second driving structure 3 is slidably arranged on the first driving structure 2 along the axial direction of the drum body 1. The supporting structure 5 is slidably arranged on the second driving structure 3 along the axial direction of the drum body 1. The pad 4 is movably installed on the second driving structure 3, and the supporting structure 5 is in contact with the pad 4. The supporting structure 5 can drive the pad 4 to move along the radial direction of the drum body 1.

[0034] There are multiple pads 4, which are arranged at intervals around the drum body 1. In order to better support the carcass, the surface of the pad 4 can be arc-shaped, and multiple pads 4 arranged at intervals along the circumferential direction of the drum body 1 are approximately arranged in a circle to support the carcass.

[0035] When in use, the carcass is sleeved on the pad 4, and multiple pads 4 abut against the carcass, and then the second driving structure 3 is driven to displace relative to the first driving structure 2 along the axial direction of the drum body 1, and the second driving structure 3 drives the pad 4 and the supporting structure 5 to move along the axial direction of the drum body 1. After working, the second driving structure 3 is relatively fixed with the first driving structure 2, and drives the supporting structure 5 to move along the axial direction of the drum body 1. Under the abutment action of the support structure 5, the support structure 5 drives the pad 4 to move along the radial direction of the drum body 1, and the pad 4 moves to the carcass bonding position.

[0036] Specifically, the second driving structure 3 is arranged on the first driving structure 2. When the first driving structure 2 moves, it will drive the second driving structure 3, the pad 4 and the supporting structure 5 to move along the axial direction of the drum body 1. By driving the first driving structure 2 to move, it can drive the pad 4 to move to the sidewall pasting position of the tire body.

[0037] The first driving structure 2 and the second driving structure 3 drive the pad 4 to move to the positions of the carcass patch and the sidewall patch, and reset after completion to proceed to the next working cycle, thereby completing the automatic carcass patch and the sidewall patch, and reducing manual intervention.

[0038] Furthermore, a first sealed cavity 31 is formed between the second driving structure 3 and the supporting structure 5. The second driving structure 3 has an extension portion 32 extending into the first sealed cavity 31. The extension portion 32 along the axial direction of the drum body 1 separates the first sealed cavity 31 into independent first chambers 311 and second chambers 312. The supporting structure 5 is driven to slide on the second driving structure 3 by adjusting the air pressure of the first chamber 311 or the second chamber 312.

[0039] The change of the air pressure may be controlled by filling or releasing air into the first chamber 311 or the second chamber 312 .

[0040] It should be noted that the first sealed cavity 31 is divided into an independent first chamber 311 and a second chamber 312, and the first chamber 311 and the second chamber 312 are not connected to each other, so that during the movement of the support structure 5, the total volume of the first chamber 311 and the second chamber 312 remains unchanged. When the first chamber 311 becomes larger, the second chamber 312 becomes smaller; when the first chamber 311 becomes smaller, the second chamber 312 becomes larger.

[0041] In this embodiment, air is inflated into the first chamber 311 to drive the support structure 5 to move in the direction of expanding the first chamber 311 ; similarly, air is inflated into the second chamber 312 to drive the support structure 5 to move in the direction of expanding the second chamber 312 .

[0042] like Figure 1 and Figure 2 As shown, the support structure 5 includes a main body portion 51 and an annular stopper 52. The first end of the main body portion 51 along the axial direction of the drum body 1 has a first protrusion 511 extending toward the second driving structure 3. The first protrusion 511 contacts the outer peripheral surface of the second driving structure 3, and a first chamber 311 is formed between the extending portion 32 and the first protrusion 511; the annular stopper 52 is arranged at the second end of the main body portion 51 along the axial direction of the drum body 1, and the annular stopper 52 is slidably arranged on the second driving structure 3, and a second chamber 312 is formed between the annular stopper 52 and the extending portion 32.

[0043] The first chamber 311 and the second chamber 312 are respectively located on both sides of the extension portion 32. When the air pressures in the first chamber 311 and the second chamber 312 are different, the air in the chamber with a larger air pressure will push the support structure 5 to move toward the chamber with a smaller air pressure, thereby changing the sizes of the two chambers, and then balancing the air pressures of the two chambers to complete the movement of the support structure 5. The support structure 5 is driven to move by air pressure, which facilitates the driving of the support structure 5 and the change of the position of the pad 4.

[0044] Specifically, the movement of the support structure 5 can drive the pad 4 to move in the radial direction of the drum body 1, so that the pad 4 has two positions in the radial direction of the drum body 1. Specifically, when the first protrusion 511 and the extension 32 abut, the first chamber 311 is fully compressed, and the pad 4 is located at one of the positions in the radial direction of the drum body 1, that is, the raised position, and the pad 4 moves radially toward the side away from the second driving structure 3 along the drum body 1; when the extension 32 abuts against the annular stopper 52, the second chamber 312 is fully compressed, and the pad 4 is located at another position, that is, the retracted position, and the pad 4 moves radially toward the side close to the second driving structure 3 along the drum body 1.

[0045] Furthermore, the main body 51 has a first guiding inclined surface 512 , and the pad 4 has a second guiding inclined surface 41 abutting against the first guiding inclined surface 512 , and the first guiding inclined surface 512 and the second guiding inclined surface 41 are slidably matched.

[0046] Among them, when the supporting structure 5 can be moved along the axial direction of the drum body 1 through the sliding cooperation between the first guiding bevel 512 and the second guiding bevel 41, the pad 4 only moves along the radial direction of the drum body 1, so as to realize the movement of the pad 4 along the radial direction of the drum body 1 through the axial movement of the supporting structure 5 along the drum body 1, thereby realizing the movement of the pad 4 along the radial direction of the drum body 1.

[0047] Furthermore, the second driving structure 3 has a limiting structure 35 , and the backing plate 4 has a matching structure 42 . The limiting structure 35 and the matching structure 42 are movably arranged along the radial direction of the drum body 1 .

[0048] In this embodiment, the limiting structure 35 is a cavity extending in the radial direction of the drum body 1, and the matching structure 42 is a connecting column extending in the radial direction of the drum body 1, and the connecting column is slidably matched with the cavity. The cavity is used to limit the sliding of the connecting column, so that the pad 4 can only slide in the radial direction of the drum body 1, preventing the pad 4 from moving in other directions, thereby increasing the stability of the movement of the pad 4.

[0049] like Figure 1 and Figure 2 As shown, the second driving structure 3 includes a first cylinder body 33 and a wall panel 34. The first cylinder body 33 is slidably connected to the first driving structure 2, and the first cylinder body 33 has an extension portion 32. The wall panels 34 are arranged in pairs at both ends of the first cylinder body 33 along the axial direction of the drum body 1, and the pad 4 is movably installed on the wall panel 34. The wall panel 34 extends along the radial direction of the drum body 1, and an installation area is formed between the two wall panels 34 along the axial direction of the drum body 1. The support structure 5 is located inside the installation area, and at least a part of the pad 4 is located inside the installation area and abuts against the support structure 5.

[0050] Specifically, a first sealed chamber 31 is formed between the first cylinder body 33 and the support structure 5, which is divided into a first chamber 311 and a second chamber 312 by the extension portion 32, and the support structure 5 is driven by adjusting the air pressure in different chambers. The wall panel 34 supports the pad 4 to increase the stability of the pad 4.

[0051] In this embodiment, a second sealed cavity 21 is formed between the first driving structure 2 and the second driving structure 3. The first driving structure 2 has a convex ring structure 22 extending into the second sealed cavity 21. The convex ring structure 22 along the axial direction of the drum body 1 divides the second sealed cavity 21 into independent third chambers 211 and fourth chambers 212. The second driving structure 3 is driven to slide on the first driving structure 2 by adjusting the air pressure in the third chamber 211 or the fourth chamber 212.

[0052] Furthermore, the first driving structure 2 includes a second cylinder body 23, the second cylinder body 23 is fixedly connected to the drum body 1, the convex ring structure 22 is arranged on the second cylinder body 23, and the end of the convex ring structure 22 away from the drum body 1 contacts and slidably cooperates with the second driving structure 3.

[0053] The sidewall drum lifting mechanism also includes a second stopper 11 and a third stopper 12 which are arranged on the second driving structure 3 at intervals along the axial direction of the drum body 1. The second stopper 11 and the third stopper 12 are slidably matched with the second driving structure 3. A third chamber 211 is formed between the second stopper 11 and the convex ring structure 22, and a fourth chamber 212 is formed between the convex ring structure 22 and the third stopper 12.

[0054] The change of the air pressure may be controlled by filling or releasing air into the third chamber 211 or the fourth chamber 212 .

[0055] It should be noted that the second sealed cavity 21 is divided into an independent third cavity 211 and a fourth cavity 212, and the third cavity 211 and the fourth cavity 212 are not connected, so that when the air pressure in the third cavity 211 and the fourth cavity 212 are different, the air in the cavity with a larger air pressure will push the second driving structure 3 to move toward the cavity with a smaller air pressure, so as to change the size of the two cavities, thereby balancing the air pressure of the two cavities and completing the movement of the second driving structure 3. The second driving structure 3 is driven to move by air pressure, so as to facilitate driving the second driving structure 3 and change the position of the pad 4.

[0056] When the second stopper 11 abuts against the convex ring structure 22, the third chamber 211 is in a fully compressed state, and the second drive structure 3 is located at one of the positions in the axial direction of the drum body 1; when the first stopper abuts against the convex ring structure 22, the fourth chamber 212 is in a fully compressed state, and the second drive structure 3 is located at another position.

[0057] In this embodiment, the lifting mechanism of the tire side drum further includes a limiting rod 7, which is fixedly connected to the drum body 1, and the extending direction of the limiting rod 7 is the same as the axial direction of the drum body 1, and the support structure 5 is slidably arranged on the limiting rod 7. The limiting rod 7 limits the movement of the support structure 5, so that the support structure 5 can only slide along the length direction of the limiting rod 7, thereby increasing the stability of the movement of the limiting rod 7, and further increasing the stability of the movement of the pad 4.

[0058] Embodiment 2

[0059] See also Figure 3 and Figure 4The difference between this embodiment and the first embodiment is that the tire sidewall drum lifting mechanism also includes a third driving structure 6, the third driving structure 6 is arranged between the first driving structure 2 and the second driving structure 3, and the third driving structure 6 is slidably arranged on the first driving structure 2 along the axial direction of the drum body 1; the second driving structure 3 is slidably arranged on the third driving structure 6 along the axial direction of the drum body 1.

[0060] Through the third driving structure 6 and the first driving structure 2, the backing plate 4 can be driven to be in four different positions in the axial direction of the drum body 1. When the second stopper 11 abuts against the upper convex ring 63 and the limiting ring 24 abuts against the lower convex ring 64, the backing plate 4 is in the first position. When the upper convex ring 63 abuts against the third stopper 12 and the lower convex ring 64 abuts against the limiting ring 24, the backing plate 4 is in the second position. When the upper convex ring 63 abuts against the second stopper 11 and the lower convex ring 64 abuts against the convex ring structure 22, the backing plate 4 is in the third position. When the upper convex ring 63 abuts against the third stopper 12 and the lower convex ring 64 abuts against the convex ring structure 22, the backing plate 4 is in the fourth position.

[0061] Specifically, when the third driving structure 6 slides on the first driving structure 2, the third driving structure 6 drives the second driving structure 3, the supporting structure 5 and the pad 4 to move, thereby realizing that both the first driving structure 2 and the third driving structure 6 drive the pad 4 to move along the axial direction of the drum body 1. By adjusting the different travels of the first driving structure 2 and the third driving structure 6 along the axial direction of the drum body 1, the pad 4 can stay at three of the four positions on the axis of the drum body 1, meeting the demand for large-diameter carcass patching, that is, the turn-up rod turn-up action is performed after the carcass patching and rolling are completed.

[0062] Furthermore, a third sealed chamber 61 is formed between the third drive structure 6 and the second drive structure 3, and a fourth sealed chamber 62 is formed between the third drive structure 6 and the first drive structure 2. The third drive structure 6 has an upper convex ring 63 extending into the third sealed chamber 61 and a lower convex ring 64 extending into the fourth sealed chamber 62. The upper convex ring 63 divides the third sealed chamber 61 into a fifth chamber 611 and a sixth chamber 612, and the second drive structure 3 is driven to slide on the third drive structure 6 by adjusting the air pressure in the fifth chamber 611 or the sixth chamber 612; the lower convex ring 64 divides the fourth sealed chamber 62 into a seventh chamber 621 and an eighth chamber 622, and the third drive structure 6 is driven to slide on the first drive structure 2 by adjusting the air pressure in the seventh chamber 621 or the eighth chamber 622.

[0063] Furthermore, the third driving structure 6 includes a third cylinder body 65 and an upper raised ring 63 and a lower raised ring 64 arranged on the third cylinder body 65, the upper raised ring 63 contacts and slides with the inner circumferential wall surface of the first cylinder body 33 of the second driving structure 3, the two wall panels 34 of the second driving structure 3 extend to contact and slide with the third cylinder body 65, a fifth chamber 611 is formed between the upper raised ring 63 and one of the wall panels 34, and a sixth chamber 612 is formed between the upper raised ring 63 and the other wall panel 34.

[0064] The convex ring structure 22 of the first driving structure 2 is in contact with and slidingly cooperates with the third cylinder body 65. The first driving structure 2 also includes a limiting ring 24. One end of the limiting ring 24 is fixedly mounted on the second cylinder body 23 of the first driving structure 2, and the other end of the limiting ring 24 is in contact with and slidingly cooperates with the third cylinder body 65. The limiting ring 24 and the convex ring structure 22 are arranged at intervals along the axial direction of the drum body 1. A seventh chamber 621 is formed between the lower convex ring 64 and the limiting ring 24, and an eighth chamber 622 is formed between the lower convex ring 64 and the convex ring structure 22.

[0065] When the air pressures in the fifth chamber 611 and the sixth chamber 612 are different, the air in the chamber with a larger air pressure will push the second driving structure 3 to move toward the chamber with a smaller air pressure, thereby changing the sizes of the two chambers, and then balancing the air pressures of the two chambers, and completing the movement of the second driving structure 3. The second driving structure 3 is driven to move by air pressure, which facilitates the driving of the second driving structure 3, and then the second driving structure 3 drives the supporting structure 5 and the pad 4 to move along the axial direction of the drum body 1.

[0066] The change of the air pressure may be controlled by filling or releasing air into the fifth chamber 611 or the sixth chamber 612 .

[0067] It should be noted that the fifth chamber 611 and the sixth chamber 612 are not connected.

[0068] When the air pressures in the seventh chamber 621 and the eighth chamber 622 are different, the air in the chamber with a larger air pressure will push the third driving structure 6 to move toward the chamber with a smaller air pressure, thereby changing the sizes of the two chambers, and then balancing the air pressures of the two chambers to complete the movement of the third driving structure 6. The third driving structure 6 is driven to move by air pressure, which facilitates the driving of the third driving structure 6, thereby realizing that the third driving structure 6 drives the second driving structure 3, the supporting structure 5 and the pad 4 to move along the axial direction of the drum body 1.

[0069] The change of the air pressure may be controlled by filling or releasing air into the seventh chamber 621 or the eighth chamber 622 .

[0070] It should be noted that the seventh chamber 621 and the eighth chamber 622 are not connected.

[0071] In this embodiment, the upper convex ring 63 and the lower convex ring 64 are spaced apart along the axial direction of the drum body 1. The spacing between the upper convex ring 63 and the lower convex ring 64 enables the first driving structure 2 and the third driving structure 6 to drive different strokes along the axial direction of the drum body 1, thereby enabling the pad 4 to be located at multiple positions.

[0072] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0073] 1. Through a plurality of different driving structures, the pad 4 supporting the carcass can be kept at different processing positions, which is convenient for various attachments of the carcass, improves efficiency and quality of the finished carcass and reduces manual operations.

[0074] 2. By dividing the chambers into different parts and using air pressure to drive the parts, it is convenient to drive the parts.

[0075] 3. By adding different limit stops, the stability of the movement of the pad 4 is increased, which facilitates the subsequent attachment operation and reduces construction errors.

[0076] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0077] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0078] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0079] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tire side drum lifting mechanism, characterized in that: include: Drum body (1); A first driving structure (2), wherein the first driving structure (2) is arranged on the drum body (1); A second driving structure (3), wherein the second driving structure (3) is slidably arranged on the first driving structure (2) along the axial direction of the drum body (1); A pad (4) and a support structure (5), wherein the support structure (5) is slidably arranged on the second driving structure (3) along the axial direction of the drum body (1), and the pad (4) is movably mounted on the second driving structure (3). The support structure (5) abuts against the pad (4), and the support structure (5) can drive the pad (4) to move along the radial direction of the drum body (1).

2. The tire side drum lifting mechanism according to claim 1, characterized in that: A first sealed cavity (31) is formed between the second driving structure (3) and the supporting structure (5); the second driving structure (3) has a protruding portion (32) extending into the first sealed cavity (31); along the axial direction of the drum body (1), the protruding portion (32) separates the first sealed cavity (31) into an independent first chamber (311) and a second chamber (312); and the supporting structure (5) is driven to slide on the second driving structure (3) by adjusting the air pressure in the first chamber (311) or the second chamber (312).

3. The tire side drum lifting mechanism according to claim 2, characterized in that: The support structure (5) comprises: A main body (51), wherein a first end of the main body (51) along the axial direction of the drum body (1) has a first protrusion (511) extending toward the second driving structure (3), the first protrusion (511) contacts the outer peripheral surface of the second driving structure (3), and the first chamber (311) is formed between the extending portion (32) and the first protrusion (511); An annular stopper (52) is arranged at the second end of the main body (51) along the axial direction of the drum body (1), and the annular stopper (52) is slidably arranged on the second driving structure (3), and the second chamber (312) is formed between the annular stopper (52) and the protruding portion (32).

4. The tire side drum lifting mechanism according to claim 3, characterized in that: The main body (51) has a first guiding inclined surface (512), and the pad (4) has a second guiding inclined surface (41) abutting against the first guiding inclined surface (512), and the first guiding inclined surface (512) and the second guiding inclined surface (41) are slidably matched.

5. The tire side drum lifting mechanism according to claim 1, characterized in that: The second driving structure (3) is provided with a limiting structure (35), and the pad (4) is provided with a matching structure (42), and the limiting structure (35) and the matching structure (42) are movably arranged along the radial direction of the drum body (1).

6. The tire side drum lifting mechanism according to claim 5, characterized in that: The limiting structure (35) is a cavity extending radially along the drum body (1), and the matching structure (42) is a connecting column extending radially along the drum body (1), and the connecting column is slidably matched with the cavity.

7. The tire side drum lifting mechanism according to claim 1, characterized in that: The second driving structure (3) comprises: A first cylinder (33), the first cylinder (33) being slidably connected to the first driving structure (2), and the first cylinder (33) having a protruding portion (32); The wall panels (34) are arranged in pairs at two ends of the first cylinder body (33) along the axial direction of the drum body (1); the pad (4) is movably mounted on the wall panels (34); the wall panels (34) extend radially along the drum body (1); a mounting area is formed between the two wall panels (34) along the axial direction of the drum body (1); the support structure (5) is located inside the mounting area; and at least a portion of the pad (4) is located inside the mounting area and abuts against the support structure (5).

8. The tire sidewall drum lifting mechanism according to claim 1, characterized in that: A second sealed cavity (21) is formed between the first drive structure (2) and the second drive structure (3); the first drive structure (2) has a convex ring structure (22) extending into the interior of the second sealed cavity (21); the convex ring structure (22) separates the second sealed cavity (21) into an independent third cavity (211) and a fourth cavity (212) along the axial direction of the drum body (1); and the second drive structure (3) is driven to slide on the first drive structure (2) by adjusting the air pressure in the third cavity (211) or the fourth cavity (212).

9. The tire side drum lifting mechanism according to claim 8, characterized in that: The first driving structure (2) comprises a second cylinder body (23), the second cylinder body (23) is fixedly connected to the drum body (1), the convex ring structure (22) is arranged on the second cylinder body (23), and one end of the convex ring structure (22) away from the drum body (1) contacts and slidably cooperates with the second driving structure (3); The tire sidewall drum lifting mechanism also includes a second stopper (11) and a third stopper (12) which are arranged on the second driving structure (3) at intervals along the axial direction of the drum body (1); the second stopper (11) and the third stopper (12) are slidably matched with the second driving structure (3); the third chamber (211) is formed between the second stopper (11) and the convex ring structure (22); and the fourth chamber (212) is formed between the convex ring structure (22) and the third stopper (12).

10. The tire sidewall drum lifting mechanism according to claim 1, characterized in that: The tire sidewall drum lifting mechanism further comprises a third driving structure (6), wherein the third driving structure (6) is arranged between the first driving structure (2) and the second driving structure (3). The third driving structure (6) is slidably arranged on the first driving structure (2) along the axial direction of the drum body (1); The second driving structure (3) is slidably arranged on the third driving structure (6) along the axial direction of the drum body (1).

11. The tire sidewall drum lifting mechanism according to claim 10, characterized in that: A third sealed cavity (61) is formed between the third drive structure (6) and the second drive structure (3), a fourth sealed cavity (62) is formed between the third drive structure (6) and the first drive structure (2), and the third drive structure (6) has an upper convex ring (63) extending into the third sealed cavity (61) and a lower convex ring (64) extending into the fourth sealed cavity (62). The upper convex ring (63) divides the third sealed chamber (61) into a fifth chamber (611) and a sixth chamber (612), and the second driving structure (3) is driven to slide on the third driving structure (6) by adjusting the air pressure of the fifth chamber (611) or the sixth chamber (612); The lower convex ring (64) divides the fourth sealed chamber (62) into a seventh chamber (621) and an eighth chamber (622), and the third driving structure (6) is driven to slide on the first driving structure (2) by adjusting the air pressure of the seventh chamber (621) or the eighth chamber (622).

12. The tire sidewall drum lifting mechanism according to claim 11, characterized in that: The third driving structure (6) comprises a third cylinder (65) and an upper convex ring (63) and a lower convex ring (64) arranged on the third cylinder (65). The upper convex ring (63) contacts and slides with the inner peripheral wall surface of the first cylinder body (33) of the second driving structure (3), and the two wall plates (34) of the second driving structure (3) extend to contact and slide with the third cylinder body (65), and the fifth chamber (611) is formed between the upper convex ring (63) and one of the wall plates (34), and the sixth chamber (612) is formed between the upper convex ring (63) and the other wall plate (34); The convex ring structure (22) of the first driving structure (2) contacts and slides with the third cylinder body (65). The first driving structure (2) also includes a limiting ring (24). One end of the limiting ring (24) is fixedly mounted on the second cylinder body (23) of the first driving structure (2), and the other end of the limiting ring (24) contacts and slides with the third cylinder body (65). The limiting ring (24) and the convex ring structure (22) are spaced apart along the axial direction of the drum body (1). The seventh chamber (621) is formed between the lower convex ring (64) and the limiting ring (24), and the eighth chamber (622) is formed between the lower convex ring (64) and the convex ring structure (22).

13. The tire side drum lifting mechanism according to claim 11, characterized in that: The upper convex ring (63) and the lower convex ring (64) are arranged at intervals along the axial direction of the drum body (1).

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