Size-adjustable tire building machine fitting drum

Abstract

The utility model discloses a tire building machine fitting drum with an adjustable size, which comprises a main shaft, a rotating mechanism is rotatably sleeved outside the main shaft, the rotating mechanism is fixedly connected with a driving mechanism, a pushing block is sleeved outside the rotating mechanism, and a first sliding block is slidably arranged on the side surface of the pushing block. The other side of each first sliding block is fixedly connected with a second sliding block through a first fixing block, the other side of each second sliding block is fixedly connected with a drum tile through a second fixing block, a plurality of first sliding blocks, a plurality of second sliding blocks, a plurality of second fixing blocks and a plurality of drum tiles are arranged in the circumferential direction of the main shaft, and a first sealing cover and a second sealing cover are arranged at the two ends of the main shaft in a penetrating mode. A vertical rod penetrates through the second rotating column in the axial direction, one end of the vertical rod is fixedly connected with the inner side of the first sealing cover, and the other end of the vertical rod is fixedly connected with the inner side of the second sealing cover. According to the utility model, through the cooperation of the driving mechanism and the rotating mechanism, the drum tile is extended or contracted along the radial direction of the main shaft, so that the diameter of the fitting drum is adjusted, and the practicability of the fitting drum is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tire forming and processing equipment, and particularly relates to a sizing drum of a tire forming machine with adjustable size. Background Art

[0002] A tire is an annular elastic rubber product that rolls on the ground and is assembled on various vehicles or machinery. It is usually installed on a metal rim, can support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the driving performance of the vehicle. During the tire forming process, the sidewall, inner liner, bead reinforcement layer, steel cord ply and cushion rubber need to be adhered through a sizing drum to form a tire blank, and then the tire blank transfer ring is used in cooperation with the expansion and contraction of the carcass drum to remove the tire blank to complete the preliminary shaping of the tire. In the prior art, sizing drums of the same model can usually only be adapted to wheel blanks with fixed diameter specifications. When tires with different diameter specifications need to be produced, multiple models of sizing drums need to be purchased, increasing the cost of tire production and reducing production efficiency. Summary of the Utility Model

[0003] Based on the above background, the purpose of the utility model is to provide a sizing drum of a tire forming machine with adjustable size.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sizing drum of a tire forming machine with adjustable size, including a main shaft, a rotating mechanism is sleeved on the main shaft in a rotating manner, and one end of the rotating mechanism is fixedly connected with a driving mechanism;

[0006] The rotating mechanism includes a first rotating column, the first rotating column is rotatably sleeved on the main shaft, a second rotating column is sleeved outside the first rotating column, threads are provided on the outer side of the first rotating column and the inner side of the second rotating column, and the first rotating column is driven to rotate by the driving mechanism to drive the second rotating column to move along the axial direction of the main shaft;

[0007] A pushing block is fixedly sleeved on the outer side of the second rotating column, a first slider is slidably arranged on the side surface of the pushing block, the other side of the first slider is fixedly connected with a second slider through a first fixing block, and the other side of the second slider is fixedly connected with a drum tile through a second fixing block, wherein a plurality of the first slider, the first fixing block, the second slider, the second fixing block and the drum tile are arranged along the circumferential direction of the main shaft;

[0008] First and second sealing covers are penetrated through both ends of the main shaft, a vertical rod is penetrated through the second rotating column in the axial direction, one end of the vertical rod is fixedly connected with the inner side of the first sealing cover, and the other end is fixedly connected with the inner side of the second sealing cover.

[0009] Preferably, the driving mechanism includes a first gear, a second gear and a motor. The first gear is fixedly sleeved on the outer side of the first rotating column. The second gear meshes with the first gear. The output end of the motor is fixedly connected to the second gear. Driven by the motor, the second gear rotates to drive the first gear to rotate, thereby driving the first rotating column to rotate.

[0010] Preferably, the driving mechanism is arranged on the outer side of the first sealing cover. One end of the first rotating column extends out of the first sealing cover and is fixedly connected to the first gear.

[0011] Preferably, the pushing block is provided with a first inclined surface, and the first slider is provided with a second inclined surface, which is slidably connected to the first inclined surface of the pushing block.

[0012] Preferably, limiting blocks are fixedly arranged on both sides of the second slider along the axial direction of the main shaft. First chutes and second chutes are respectively formed in the radial direction on the opposite sides of the first sealing cover and the second sealing cover. The second slider is slidably arranged in the first chute and the second chute through the limiting blocks on both sides, and the radial movement of the drum tile is limited by the first chute and the second chute, and it does not move axially.

[0013] Preferably, a plurality of the second rotating columns, the first sliders and the first fixing blocks are arranged along the axial direction of the main shaft and are equally spaced. The first slider is pushed to move by multiple groups of the second rotating columns in the same radial direction, which can reduce the wear of the first slider and also avoid the difference in the radial movement distance of the drum tile caused by the deviation of the movement of the first slider.

[0014] Preferably, a plurality of blocking blocks are fixedly arranged on the first rotating column and are equally spaced along the axial direction of the main shaft to limit the axial movement distance of the pushing block on the main shaft.

[0015] Preferably, both ends of the first chute and the second chute are arranged in the first sealing cover and the second sealing cover to prevent the second slider from sliding out of the first chute and the second chute, and further limit the radial sliding distance of the second slider.

[0016] The utility model has the following beneficial effects:

[0017] 1. The driving mechanism drives the first rotating column to rotate. Under the action of the vertical rod, the second rotating column moves along the axial direction of the main shaft, thereby driving the pushing block on the outer side of the second rotating column to move axially. Under the action of the first inclined surface, the first slider moves radially, thereby driving the drum tile fixedly connected to the second slider to extend or contract in the radial direction of the main shaft, so as to adjust the diameter of the fitting drum and improve the practicability of the fitting drum.

[0018] 2. By arranging multiple groups of second rotating columns, first sliders, and first fixing blocks along the axial direction of the main shaft, the wear of the first sliders can be reduced, and the deviation in the movement of the first sliders can also be avoided, which may cause a difference in the radial movement distance of the drum tiles. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Internal structure schematic diagram of a set of drum tiles of the present invention;

[0021] Figure 2 External three-dimensional structure schematic diagram of the present invention;

[0022] Figure 3 Internal three-dimensional structure schematic diagram of a set of drum tiles of the present invention;

[0023] Figure 4 Internal three-dimensional structure combination schematic diagram of a set of drum tiles of the present invention;

[0024] Figure 5 Three-dimensional structure schematic diagram of the first sealing cover of the present invention;

[0025] Figure 6 For the present invention Figure 1 Enlarged schematic diagram of the structure at A.

[0026] Wherein:

[0027] 1. Main shaft;

[0028] 2. Rotating mechanism; 201. First rotating column; 202. Second rotating column; 203. Blocking block; 204. Vertical rod;

[0029] 3. Pushing block; 301. First inclined surface;

[0030] 4. First slider; 401. First fixing block; 402. Second inclined surface;

[0031] 5. Second slider; 501. Second fixing block; 502. Limiting block;

[0032] 6. Drum tile;

[0033] 7. First sealing cover; 701. First sliding groove;

[0034] 8. Second sealing cover; 801. Second sliding groove;

[0035] 9. Driving mechanism; 901. First gear; 902. Second gear; 903. Motor. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] As Figures 1-6 shown, a tire building drum with adjustable size includes a main shaft 1. A rotating mechanism 2 is rotatably sleeved outside the main shaft 1. One end of the rotating mechanism 2 is fixedly connected to a driving mechanism 9;

[0040] The rotating mechanism 2 includes a first rotating column 201. The first rotating column 201 is rotatably sleeved on the main shaft 1. A second rotating column 202 is sleeved outside the first rotating column 201. Threads are provided on the outer side of the first rotating column 201 and the inner side of the second rotating column 202. By driving the first rotating column 201 to rotate through the driving mechanism 9, the second rotating column 202 is driven to move along the axial direction of the main shaft 1;

[0041] A push block 3 is fixedly sleeved on the outside of the second rotating column 202. A first slider 4 is slidably arranged on the side surface of the push block 3. The other side of the first slider 4 is fixedly connected to a second slider 5 through a first fixing block 401. The other side of the second slider 5 is fixedly connected to a brake shoe 6 through a second fixing block 501. Among them, a plurality of the first slider 4, the first fixing block 401, the second slider 5, the second fixing block 501, and the brake shoe 6 are arranged along the circumferential direction of the main shaft 1;

[0042] Both ends of the main shaft 1 are penetrated with a first sealing cover 7 and a second sealing cover 8. A vertical rod 204 is axially penetrated through the second rotating column 202. One end of the vertical rod 204 is fixedly connected to the inner side of the first sealing cover 7, and the other end is fixedly connected to the inner side of the second sealing cover 8.

[0043] Preferably, the driving mechanism 9 includes a first gear 901, a second gear 902, and a motor 903. The first gear 901 is fixedly sleeved on the outside of the first rotating column 201. The second gear 902 is meshed with the first gear 901. The output end of the motor 903 is fixedly connected to the second gear 902. Driven by the motor 903, the second gear 902 rotates to drive the first gear 901 to rotate, thereby driving the first rotating column 201 to rotate.

[0044] Preferably, the driving mechanism 9 is arranged on the outside of the first sealing cover 7. One end of the first rotating column 201 extends out of the first sealing cover 7 and is fixedly connected to the first gear 901.

[0045] Preferably, the push block 3 is provided with a first inclined surface 301, and the first slider 4 is provided with a second inclined surface 402, which is slidably connected to the first inclined surface 301 of the push block 3.

[0046] Preferably, limiting blocks 502 are fixedly arranged on both sides of the second slider 5 along the axial direction of the main shaft 1. First sliding grooves 701 and second sliding grooves 801 are respectively opened along the radial direction on the opposite sides of the first sealing cover 7 and the second sealing cover 8. The second slider 5 is slidably arranged in the first sliding groove 701 and the second sliding groove 801 through the limiting blocks 502 on both sides. The radial movement of the brake shoe 6 is limited by the first sliding groove 701 and the second sliding groove 801, and it does not move axially.

[0047] Preferably, a plurality of the second rotating column 202, the first slider 4, and the first fixing block 401 are arranged along the axial direction of the main shaft 1 and are equally spaced. Driving the first slider 4 to move through multiple groups of the second rotating column 202 in the same radial direction can reduce the wear of the first slider 4 and also avoid the difference in the radial movement distance of the brake shoe 6 caused by the deviation of the movement of the first slider 4.

[0048] Preferably, a plurality of blocking blocks 203 are fixedly arranged on the first rotating column 201 and are equally spaced along the axial direction of the main shaft 1, which are used to limit the axial movement distance of the second rotating column 202 on the main shaft 1.

[0049] Preferably, both ends of the first sliding groove 701 and the second sliding groove 801 are provided inside the first sealing cover 7 and the second sealing cover 8, so as to prevent the second slider 5 from sliding out of the first sliding groove 701 and the second sliding groove 801, and further limit the radial sliding distance of the second slider 5.

[0050] During the working process, the motor 903 drives the second gear 902 to rotate. The second gear 902 meshes with the first gear 901, thereby driving the first gear 901 to rotate. The first rotating column 201 fixedly connected to the first gear 901 rotates. Under the action of the vertical rod 204, the second rotating column 202 is prevented from rotating together. Under the action of the screw threads on the outer side of the first rotating column 201 and the inner side of the second rotating column 202, the second rotating column 202 moves along the axial direction of the main shaft 1. The first inclined surface 301 of the pushing block 3 and the second inclined surface 402 of the first slider 4 slide relative to each other, thereby driving the brake shoe 6 fixedly connected to the second slider 5 to extend or contract in the radial direction of the main shaft 1 to adjust to the required diameter.

[0051] A blocking block 203 is provided on the first rotating column 201, which can limit the axial moving distance of the second rotating column 202 to prevent the moving distance from being too large so that the first inclined surface 301 and the second inclined surface 402 are separated from contact. At the same time, both ends of the first sliding groove 701 and the second sliding groove 801 are provided inside the first sealing cover 7 and the second sealing cover 8, further limiting the radial sliding distance of the second slider 5.

[0052] Certainly, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An adjustable-size tire building machine bead former, characterized in that, It includes a main shaft, and a rotating mechanism is rotatably sleeved outside the main shaft, and one end of the rotating mechanism is fixedly connected to a driving mechanism; The rotating mechanism includes a first rotating column, the first rotating column is rotatably sleeved on the main shaft, a second rotating column is sleeved outside the first rotating column, and threads are provided on the outer side of the first rotating column and the inner side of the second rotating column; A pushing block is fixedly sleeved outside the second rotating column, a first slider is slidably provided on the side surface of the pushing block, the other side of the first slider is fixedly connected to a second slider through a first fixing block, and the other side of the second slider is fixedly connected to a brake shoe through a second fixing block; Both ends of the main shaft are penetrated with a first sealing cover and a second sealing cover, a vertical rod is axially penetrated through the second rotating column, one end of the vertical rod is fixedly connected to the inner side of the first sealing cover, and the other end is fixedly connected to the inner side of the second sealing cover.

2. The sizing-adjustable tire building machine bead former according to claim 1, wherein, The driving mechanism includes a first gear, a second gear and a motor, the first gear is fixedly sleeved on the outer side of the first rotating column, the second gear is meshed with the first gear, and the output end of the motor is fixedly connected to the second gear.

3. The sizing-adjustable tire building machine bead former according to claim 2, wherein, The driving mechanism is arranged outside the first sealing cover, and one end of the first rotating column extends out of the first sealing cover and is fixedly connected to the first gear.

4. The sizing-adjustable tire building machine bead former according to claim 1, wherein, The pushing block is provided with a first inclined surface, and the first slider is provided with a second inclined surface, which is slidably connected to the first inclined surface of the pushing block.

5. The size-adjustable tire building machine bead former according to claim 1, characterized in that, Limit blocks are fixedly arranged on both sides of the second slider along the axial direction of the main shaft, and a first sliding groove and a second sliding groove are respectively opened in the radial direction on the opposite sides of the first sealing cover and the second sealing cover, and the limit blocks are matched with the first sliding groove and the second sliding groove.

6. The sizing-adjustable tire building machine bead former according to claim 1, characterized in that, A plurality of blocking blocks are fixedly arranged on the first rotating column and are equally spaced along the axial direction of the main shaft.

7. The sizing-adjustable tire building machine bead former according to claim 5, wherein Both ends of the first sliding groove and the second sliding groove are arranged in the first sealing cover and the second sealing cover.

8. The size-adjustable tire building machine bead former according to any one of claims 1-7, characterized in that, A plurality of the second rotating column, the first slider and the first fixing block are arranged along the axial direction of the main shaft and are equally spaced.

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