A new solid tire mold structure with communicating columns on upper and lower sidewalls

Abstract

The utility model relates to tire mould technical field, concretely relates to a new solid tire mould structure with communicating column in upper and lower tire side, and the mould structure includes the upper die body and lower die body that cooperate with each other, and its characterized in that: the upper die body bottom fixed connection communicating column's top, the lower die body top is provided with the recess structure with the butt joint cooperation of communicating column's bottom, and communicating column is used for forming the through -hole structure of solid tire, so that the solid tire tire in -process through -hole does not exist the flaw, even if the flaw is located in the tire side, the end of through -hole, is convenient for post -treatment.

Description

Technical Field

[0001] This utility model relates to the field of tire mold technology, specifically to a novel solid tire mold structure with connecting columns on the upper and lower tire sides. Background Technology

[0002] For high-load vehicles or machinery, solid tires are often used. These are tires that are vulcanized as a whole through a mold. The inside of the tire is solid and does not need to be inflated. The advantages are that they have extremely strong load-bearing capacity and adaptability to harsh environments. Since they are solid, they often have multiple hole structures around the circumference of the wheel hub. These holes serve two purposes: weight reduction and heat dissipation.

[0003] Based on the requirements, a solid tire for both highways and railways needs to be developed, with multiple through holes on the upper and lower sides of the tire. On the one hand, the exposed through hole structure ensures heat dissipation efficiency; on the other hand, some through holes can also be used as mounting holes in specific usage scenarios, and can be connected and fixed to the rim through connectors.

[0004] For the molds used to produce this type of tire, especially for the formation of this heat dissipation hole structure, existing technologies such as CN202607894U and CN208452031U propose fixing mold rods in the upper and lower molds respectively, so that the formed tire has blind hole structures on both sides; CN110978580A also proposes fixing mold rods in the upper and lower molds respectively. After the upper and lower molds are closed, the ends of the mold rods on both sides abut to form a through hole structure. The disadvantages are: 1. The ends of the mold rods are not flat, so the formed through hole cannot form a straight inner wall at the abutting position of the mold rod ends, requiring post-processing; 2. Even if the ends of the mold rods are improved to be flat, theoretically a complete columnar through hole can be formed, but in actual production, the fit of such a large mold will inevitably have deviations, and there will still be defects at the abutting position of the mold rod ends, which also requires post-processing. Moreover, since its position is inside the tire, the post-processing work is more complicated. Utility Model Content

[0005] To address the problems of defects and inconvenient post-processing in existing solid tire molds for through holes, this utility model provides a novel solid tire mold structure with connecting columns on the upper and lower tire sides.

[0006] The purpose of this utility model is achieved in the following way: a novel solid tire mold structure with connecting columns on the upper and lower sides of the tire. The mold structure includes an upper mold body 1 and a lower mold body 4 that cooperate with each other. The bottom of the upper mold body 1 is fixedly connected to the top of the connecting column 8. The top of the lower mold body 4 is provided with a groove structure that abuts against the bottom end of the connecting column 8. The connecting column 8 is used to form the through hole structure of the solid tire.

[0007] Furthermore, an upper steel ring 3 is fixedly connected to the bottom inner side of the upper mold body 1, and an upper side plate 2 is provided outside the upper steel ring 3. The upper side plate 2 is fixedly connected to the bottom of the upper mold body 1, and the top of the connecting column 8 is fixedly connected to the bottom of the upper side plate 2. The guide ring 7 is fixedly connected to the top of the inner side of the lower mold body 4. A lower side plate 5 is provided outside the guide ring 7. The lower side plate 5 is fixedly connected to the top of the lower mold body 4. A lower steel ring 6 is held between the guide ring 7 and the lower side plate 5. The lower steel ring 6 abuts against the upper steel ring 3. The top of the lower side plate 5 forms a groove structure that matches the bottom end of the connecting column 8.

[0008] Furthermore, the connecting column 8 includes a cylindrical body 9, with an L-shaped groove 12 formed inward on at least one side of the top of the cylindrical body 9, so that a boss 10 structure is formed on the top of the cylindrical body 9. The upper side plate 2 is provided with a mounting hole 13 that is inserted into the boss 10. The top of the boss 10 is provided with an internal threaded hole, and the bolt passes through the upper mold body 1 and is threaded into the boss 10 inserted into the mounting hole 13.

[0009] Furthermore, the bottom end of the connecting column 8 is a ball head 11, and the groove structure on the top of the lower side plate 5 is a ball recess 14 that mates with the ball head 11.

[0010] Furthermore, the connecting pillars 8 are arranged in a circular array along the central axis of the mold structure within the mold cavity formed between the upper mold body 1 and the lower mold body 4.

[0011] Compared with the prior art, this utility model only sets a connecting column fixed to the upper mold. The connecting column abuts and cooperates with the groove of the lower mold, so that the through hole inside the formed solid tire will not have defects. Even if there are defects, they are located on the tire side, that is, at the end of the through hole, which is convenient for post-processing. Attached Figure Description

[0012] Figure 1 It is a cross-sectional view of half of a solid tire mold; Figure 2 It is a structural schematic diagram of the connecting column and a cross-sectional view of its top boss; Figure 3 It is a partial enlarged sectional view of the mounting hole on the upper side plate and a sectional view of the top of the mounting hole; Figure 4 It is a partial enlarged sectional view of the ball-shaped depression on the lower side plate and a cross-sectional view of the ball-shaped depression.

[0013] Among them, the upper mold body 1, upper side plate 2, upper steel ring 3, lower mold body 4, lower side plate 5, lower steel ring 6, guide ring 7, connecting column 8, cylindrical body 9, boss 10, ball head 11, L-shaped groove 12, mounting hole 13, and ball recess 14 are all included. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] As attached Figure 1-4 As shown, a novel solid tire mold structure with connecting pillars on the upper and lower sides is disclosed. The mold structure includes an upper mold body 1 and a lower mold body 4 that cooperate with each other. The bottom of the upper mold body 1 is fixedly connected to the top of the connecting pillar 8. The top of the lower mold body 4 is provided with a groove structure that abuts against the bottom end of the connecting pillar 8. The groove structure is lower than the top surface of the lower mold body 4, so that the mating position between the bottom end of the connecting pillar 8 and the groove structure is outside the tire forming structure. There will be no defects in the through hole inside the tire. Even if defects are caused by the mating gap, they will only appear on the tire sidewall, which is convenient for post-processing. The connecting pillar 8 is used to form the through hole structure of the solid tire.

[0017] The mold is made according to standard dimensions at the beginning of production, but after long-term use and participation in vulcanization, small gaps will inevitably occur between the parts. It will not affect the product quality macroscopically, but it will lead to such small defects.

[0018] Furthermore, an upper steel ring 3 is fixedly connected to the bottom inner side of the upper mold body 1. Bolts pass through the upper mold body 1 and the upper steel ring 3 in sequence for fixing. An upper side plate 2 is provided outside the upper steel ring 3. Bolts pass through the upper mold body 1 and the upper side plate 2 in sequence for fixing. The upper side plate 2 is fixedly connected to the bottom of the upper mold body 1. The bottom of the upper side plate 2 is fixedly connected to the top of the connecting column 8. The guide ring 7 is fixedly connected to the top of the inner side of the lower mold body 4. Bolts pass through the lower mold body 4 and the guide ring 7 in sequence for fixation. A lower side plate 5 is provided outside the guide ring 7. The lower side plate 5 is fixedly connected to the top of the lower mold body 4. Bolts pass through the lower mold body 4 and the guide ring 7 in sequence for fixation. A lower steel ring 6 is clamped between the guide ring 7 and the lower side plate 5. The lower steel ring 6 is movable and abuts against the upper steel ring 3. The top of the lower side plate 5 forms a groove structure that matches the bottom end of the connecting column 8.

[0019] The upper steel ring 3 and the lower steel ring 6 serve as support molds for the inner ring of the solid tire.

[0020] Further details are attached. Figure 2 As shown, the connecting column 8 includes a cylindrical body 9. At least one side of the top of the cylindrical body 9 forms an L-shaped groove 12 inwards. Preferably, as shown in the figure, both symmetrical sides form L-shaped grooves 12, resulting in a boss 10 structure on the top of the cylindrical body 9. Figure 3 As shown, the upper side plate 2 is provided with a mounting hole 13 that is inserted into the boss 10. The mounting hole 13 includes two stepped structures that respectively engage with the outer contour of the boss 10 and the cylindrical body 9. The top of the boss 10 is provided with an internal threaded hole, and the bolt passes through the upper mold body 1 and engages with the boss 10 inserted into the mounting hole 13.

[0021] Furthermore, the bottom end of the connecting post 8 is a ball head 11 or other arc-shaped structure, as shown in the attached figure. Figure 4 As shown, the groove structure at the top of the lower side plate 5 is a spherical recess 14 that mates with the ball head 11 or other arc-shaped structures.

[0022] Furthermore, the connecting pillars 8 are arranged in a circular array along the central axis of the mold structure within the mold cavity formed between the upper mold body 1 and the lower mold body 4. The number of connecting pillars 8 is greater than or equal to 1, and is generally 4 to 12.

[0023] The connecting column 8 structure can be applied to all two-part molds; it can also be applied to movable molds.

[0024] The working process of this utility model is as follows: When the mold is opened, the upper mold body 1, together with the upper side plate 2, the connecting column 8, and the upper steel ring 3, moves upward under the action of external force, opens the mold, and removes the tire; When the mold is closed, the upper mold body 1, along with the upper side plate 2, the connecting column 8, and the upper steel ring 3, moves downward along with the ejection mechanism. The guide column of the upper mold body 1 enters the guide sleeve of the lower mold body 4 (the guide column and guide sleeve are structures that exist on the existing two-part mold, and will not be described in detail here). As it continues to move downward, under the action of the mold's own weight, the ball head 11 of the connecting column 8 first inserts into the tire semi-finished product. After the mold stops, it is pushed into the flat vulcanizing machine. After pressure is applied, as the upper mold body 1 and the lower mold body 4 further cooperate, after the above continuous process, the ball head 11 of the connecting column 8 falls into the ball cavity 14, and the mold is completely closed and vulcanized.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A novel solid tire mold structure with connecting pillars on the upper and lower tire sides, the mold structure comprising an upper mold body (1) and a lower mold body (4) that cooperate with each other, characterized in that: The top of the connecting column (8) is fixedly connected to the bottom of the upper mold body (1), and the top of the lower mold body (4) is provided with a groove structure that abuts against the bottom of the connecting column (8). The connecting column (8) is used to form a through hole structure for a solid tire.

2. The novel solid tire mold structure with connecting pillars on the upper and lower tire sides as described in claim 1, characterized in that: The upper mold body (1) is fixedly connected to the bottom of the inner side of the upper steel ring (3), and an upper side plate (2) is provided outside the upper steel ring (3). The upper side plate (2) is fixedly connected to the bottom of the upper mold body (1), and the bottom of the upper side plate (2) is fixedly connected to the top of the connecting column (8). The guide ring (7) is fixedly connected to the top of the inner side of the lower mold body (4). A lower side plate (5) is provided outside the guide ring (7). The lower side plate (5) is fixedly connected to the top of the lower mold body (4). A lower steel ring (6) is clamped between the guide ring (7) and the lower side plate (5). The lower steel ring (6) abuts against the upper steel ring (3). The top of the lower side plate (5) forms a groove structure that matches the bottom end of the connecting column (8).

3. The novel solid tire mold structure with connecting pillars on the upper and lower tire sides as described in claim 2, characterized in that: The connecting column (8) includes a cylindrical body (9). At least one side of the top of the cylindrical body (9) forms an L-shaped groove (12) inward, so that the top of the cylindrical body (9) forms a boss (10) structure. The upper side plate (2) is provided with a mounting hole (13) that is inserted into the boss (10). The top of the boss (10) is provided with an internal thread hole. The bolt passes through the upper mold body (1) and is threaded into the boss (10) inserted into the mounting hole (13).

4. The novel solid tire mold structure with connecting pillars on the upper and lower tire sides as described in claim 3, characterized in that: The bottom end of the connecting column (8) is a ball head (11), and the groove structure on the top of the lower side plate (5) is a ball concave (14) that matches the ball head (11).

5. A novel solid tire mold structure with connecting pillars on the upper and lower tire sides as described in claim 4, characterized in that: The connecting column (8) is arranged in a circular array along the central axis of the mold structure within the mold cavity formed between the upper mold body (1) and the lower mold body (4).

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