Mold structure capable of solving problem that two-piece type tire mold is adhered to upper mold during mold opening

Abstract

The utility model discloses a mold structure for solving the problem that an upper mold is adhered to a two-piece type tire mold during mold opening. An upper steel ring and an upper side plate are separated, and an upper bead ring, namely the upper steel ring, of the mold is separated from an upper mold. A connecting structure is arranged on the upper steel ring, so that the upper steel ring can be directly connected with a vulcanizing machine flange. Therefore, in the mold opening process, the upper steel ring can be accurately driven to move up and down by the up-and-down movement of the vulcanizing machine flange without being limited by the upper side plate, so that the tire is adhered to the upper mold after the tire is vulcanized and the mold is opened, the upper steel ring presses the tire downwards to move, and the tire is demolded. Through the innovative structural design, the upper bead ring, namely the upper steel ring, of the mold is separated from the upper mold, so that the convenience, the reliability and the efficiency of mold opening are improved, the production cost and the maintenance cost are reduced, and meanwhile, the production quality of a tire is ensured not to be influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire mold technical field, especially a mold structure for solving the problem of mold sticking during mold opening of a two-piece tire mold. BACKGROUND

[0002] In the tire manufacturing industry, two-piece tire molds are commonly used mold types. However, mold sticking frequently occurs during mold opening, which seriously affects the production efficiency and quality of tires. The traditional structure of two-piece tire molds makes it difficult for the upper mold to separate smoothly from the tire and the lower mold due to factors such as the adhesion of rubber to the mold surface and the internal pressure distribution of the mold. Some existing solutions have many limitations, such as the use of mold release agents, which not only increases production costs but also may cause environmental pollution, and their effects are difficult to maintain long-term stability. Special treatment of the mold surface, such as polishing, will lose its effectiveness after multiple uses. SUMMARY

[0003] The purpose of the utility model is to design a mold structure for solving the problem of mold sticking during mold opening of a two-piece tire mold. Through innovative structural design, the convenience, reliability, and efficiency of mold opening are improved, production costs and maintenance costs are reduced, and the quality of tire production is not affected.

[0004] The utility model achieves the above-mentioned purposes through the following technical solutions:

[0005] The utility model provides a mold structure for solving the problem of mold sticking during mold opening of a two-piece tire mold, which comprises a lower mold locking hole, a lower mold, a lower steel ring (lower tire lip ring), a vulcanizing machine lower center mechanism, an upper mold locking hole, an upper mold, an upper steel ring and upper mold connecting screw holes, an upper steel ring (upper tire lip ring), an upper chuck cover plate, an upper chuck, a lower chuck, a chuck nut, a flange plate and upper steel ring connecting screw holes, and a flange plate. The lower mold locking hole is arranged at the left end of the lower mold and connected to the vulcanizing machine lower hot plate through locking bolts. The right end of the lower steel ring is connected to the left end of the lower mold, and the right end of the lower steel ring is connected to the vulcanizing machine lower center mechanism through the lower chuck. The lower steel ring and the lower chuck are fixed through locking bolts. The upper mold locking hole is arranged at the left end of the upper mold and connected to the vulcanizing machine upper hot plate through locking bolts. The right end of the upper steel ring is connected to the left end of the upper mold, and the right end of the upper steel ring is connected to the upper chuck through the upper chuck cover plate. The upper end of the upper chuck is provided with a chuck nut, and the upper chuck cover plate and the upper chuck are fixed through locking bolts. The upper steel ring and the upper mold are provided with upper steel ring and upper mold connecting screw holes and are fixed through locking bolts. During use, the locking bolts of the upper steel ring and upper mold connecting screw holes are removed. The vulcanizing machine flange plate and the upper steel ring are provided with matching flange plate and upper steel ring connecting screw holes and are connected through locking bolts.

[0006] The upper steel ring (8) is in the form of an irregular polygonal combination.

[0007] The utility model discloses the beneficial effect lies in:

[0008] The upper steel ring is separated from the upper side plate:

[0009] The upper tire lip ring, i.e., the upper steel ring, of the mold is separated from the upper mold. A connecting structure is arranged on the upper steel ring, so that the upper steel ring can be directly connected with the vulcanizing machine flange. In this way, in the mold opening process, the up-down movement of the vulcanizing machine flange can accurately drive the up-down movement of the upper steel ring, and the upper steel ring is not limited by the upper side plate, so that the tire is adhered to the upper mold after the tire vulcanization is completed, and the upper steel ring moves downward to press the tire, thereby achieving tire demolding.

[0010] The utility model discloses the beneficial effect lies in: BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model discloses a mold structure combination schematic view;

[0012] Figure 2 The utility model discloses a mold structure combination schematic view after being equipped with a vulcanizing machine;

[0013] Figure 3 The utility model discloses a mold structure combination schematic view in the initial stage of mold opening;

[0014] Figure 4 The utility model discloses a mold structure combination schematic view after being equipped with a vulcanizing machine;

[0015] In the drawing, 1 is a lower mold locking hole, 2 is a lower mold, 3 is a lower steel ring, 4 is a vulcanizing machine lower center mechanism, 5 is an upper mold locking hole, 6 is an upper mold, 7 is an upper steel ring and upper mold connecting screw hole, 8 is an upper steel ring, 9 is an upper chuck cover plate, 10 is an upper chuck, 11 is a lower chuck, 12 is a chuck nut, 13 is a flange plate and upper steel ring connecting screw hole, and 14 is a flange plate. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0018] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0019] In the description of the utility model, it is understood that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0020] In addition, the terms "first", "second" and the like are only used for differentiation description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it is also necessary to explain that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The specific embodiments of the utility model will be described in detail below in combination with the drawings.

[0023] As shown in the drawings Figures 1-3As shown, the present embodiment provides a mold structure for solving the problem of mold sticking during mold opening of a two-piece tire mold, which comprises a lower mold locking hole 1, a lower mold 2, a lower steel ring (lower tire lip ring) 3, a lower center mechanism of a curing machine 4, an upper mold locking hole 5, an upper mold 6, an upper steel ring and upper mold connecting screw hole 7, an upper steel ring (upper tire lip ring) 8, an upper chuck cover plate 9, an upper chuck 10, a lower chuck 11, a chuck nut 12, a flange and upper steel ring connecting screw hole 13, and a flange 14. The lower mold locking hole 1 is arranged at the left end of the lower mold 2 and is connected to the lower hot plate of the curing machine by locking bolts. The right end of the lower mold 2 is connected to the left end of the lower steel ring 3. The right end of the lower steel ring 3 is connected to the lower center mechanism of the curing machine 4 through the lower chuck 11, and the lower steel ring 3 and the lower chuck 11 are fixed by locking bolts. The upper mold locking hole 5 is arranged at the left end of the upper mold 6 and is connected to the upper hot plate of the curing machine by locking bolts. The right end of the upper mold 6 is connected to the left end of the upper steel ring 8. The right end of the upper steel ring 8 is connected to the upper chuck 10 through the upper chuck cover plate 9. The upper end of the upper chuck 10 is provided with the chuck nut 12. The upper chuck cover plate 9 and the upper chuck 10 are fixed by locking bolts. The upper steel ring and upper mold connecting screw hole 7 is arranged between the upper mold 6 and the upper steel ring 8 and is fixed by locking bolts. During use, the locking bolts in the upper steel ring and upper mold connecting screw hole 7 are removed. The upper steel ring 8 and the flange of the curing machine 14 are provided with matching flange and upper steel ring connecting screw holes 13 and are connected by locking bolts.

[0024] 1. Mold assembly

[0025] The upper steel ring 8 and the upper mold 6 are manufactured according to the separation design. During assembly of the mold in the mold house, the upper steel ring 8 and the upper mold 6 are connected by the locking bolts in the upper steel ring and upper mold connecting screw hole 7. After the mold is placed on the curing machine, the flange and upper steel ring connecting screw holes 13 matching the upper steel ring 8 and the flange of the curing machine 14 are connected by locking bolts. At this time, the locking bolts connecting the upper steel ring 8 and the upper mold 6 are removed. The flange of the curing machine 14 is connected to the flange center mechanism of the upper mold of the curing machine. The upper mold locking hole 5 is connected to the upper hot plate of the curing machine by locking bolts.

[0026] 2. Mold closing operation

[0027] The curing machine is started. The upper steel ring 8 and the upper mold 6 are lifted to a predetermined height by the flange of the curing machine and the upper hot plate of the curing machine. Then, the tire semi-finished product is placed on the lower mold 2. The upper steel ring 8 and the upper mold 6 are lowered by operating the curing machine. During the lowering process, as the upper steel ring 8 and the upper mold 6 continue to descend, when the mold closing is completed, the tire vulcanization operation is performed.

[0028] 3. Mold opening process

[0029] After the tire vulcanization is completed, the hot plate on the vulcanizing machine first moves upward, driving the upper mold 6 to move upward, at this time the vulcanizing machine flange plate 14 is fixed, the upper ring 8 linked with the flange plate 14 also maintains fixed, when the upper mold 6 has the vulcanized tire adhered to the mold, this process can realize the tire and the upper mold 6 to be separated; when the upper mold 6 moves upward to a certain distance and pauses, at this time the vulcanizing machine flange plate 14 moves upward, driving the upper ring 8 to move upward, reaches the pause position with the upper mold, and then connects with the upper mold 6 to move upward together, realizing the complete mold opening action.

[0030] Due to the separation design of the upper ring and the upper mold, the upper ring can move independently, effectively avoiding the adhesion problem.

[0031] After the upper ring is completely separated, other parts of the mold such as the upper side plate can be further operated according to the needs, such as cleaning, maintenance, etc., and then the next round of tire vulcanization production is prepared.

[0032] Although the present application has been described with reference to the explanatory embodiments thereof, the above-described embodiments are merely the preferred embodiments of the present application, and the embodiments of the present application are not limited by the above-described embodiments, and it should be understood that those skilled in the art can design many other modifications and embodiments, and these modifications and embodiments will fall within the scope and spirit of the present application.

Claims

1. A mold structure for solving sticking of a mold in mold opening of a two-piece tire mold, characterized by: It includes the lower mold locking hole (1), the lower mold (2), the lower steel ring (3), the lower center mechanism of curing machine (4), the upper mold locking hole (5), the upper mold (6), the upper steel ring and the upper mold connecting screw hole (7), the upper steel ring (8), the upper chuck cover plate (9), the upper chuck (10), the lower chuck (11), the chuck nut (12), the flange and the upper steel ring connecting screw hole (13), the flange (14), the lower mold (2) left end sets up the lower mold locking hole (1) through the mold locking bolt and is connected with the lower hot plate of curing machine, the right end of lower mold (2) is connected with the left end of lower steel ring (3), the right end of lower steel ring (3) is connected with the lower center mechanism (4) of curing machine through lower chuck (11), and lower steel ring (3) and lower chuck (11) are fixed through locking bolt;The left end of upper mold (6) sets up the upper mold locking hole (5) through the mold locking bolt and is connected with the upper hot plate of curing machine, the right end of upper mold (6) is connected with the left end of upper steel ring (8), the right end of upper steel ring (8) is connected with upper chuck (10) through upper chuck cover plate (9), upper chuck (10) upper end sets up chuck nut (12), and upper chuck cover plate (9) and upper chuck (10) are fixed through locking bolt, and upper mold (6) and upper steel ring (8) are provided with upper steel ring and upper mold connecting screw hole (7) and are fixed through the locking bolt arranged therein, when using, the locking bolt in upper steel ring and upper mold connecting screw hole (7) is removed, and upper steel ring (8) and curing machine flange (14) are provided with matching flange and upper steel ring connecting screw hole (13) and are connected through the locking bolt arranged therein.

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