Pin bush vulcanization mold structure

Abstract

The utility model discloses a pin bush vulcanizing mold structure, which belongs to the technical field of molds and comprises a vulcanizing mold body, the vulcanizing mold body comprises an upper mold and a lower mold, a central pin bush is arranged on the lower mold, a plurality of core rods are arranged between the upper mold and the lower mold for supporting a core cylinder, and a pressing ring is detachably connected to the surface of the upper mold. The fixing ring is detachably connected to the lower portion of the pressing ring and arranged between the center pin sleeve and the pressing ring, the fixing ring can be replaced and detached according to tire inner tubes of different sizes, the mold does not need to be redesigned and manufactured, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically a pin sleeve vulcanization mold structure. Background Technology

[0002] The manufacturing requirements for center pin vulcanization molds are high, requiring precise dimensions, flatness, and surface quality. During the manufacturing process, there may be processing errors or limitations of mechanical equipment, resulting in insufficient manufacturing precision of the mold, which affects the quality of the finished core tube. Furthermore, during use, the mold is subject to high temperature, high pressure, and mechanical stress, which can easily lead to wear, fatigue, and cracks, thus limiting the mold's lifespan. This limitation in mold lifespan may increase production costs and extend downtime.

[0003] In related technologies, the manufacturing of center pin sleeve vulcanization molds is usually customized according to the specific needs of customers. In some cases, the lack of standardization between mold design and manufacturing leads to the need to redesign and manufacture the mold every time a new tire core is produced, which reduces production efficiency and economic benefits. Utility Model Content

[0004] The purpose of this utility model is to provide a pin sleeve vulcanization mold structure to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A pin-sleeve vulcanizing mold structure is provided, including a vulcanizing mold body, the vulcanizing mold body including an upper mold and a lower mold, a central pin sleeve is provided on the lower mold, a plurality of mandrels are provided between the upper mold and the lower mold, a pressure ring is detachably connected to the lower surface of the upper mold, a fixing ring is detachably connected below the pressure ring, and the fixing ring is disposed between the central pin sleeve and the pressure ring.

[0006] Furthermore, the pressure ring is provided with a positioning groove along the circumferential direction.

[0007] Furthermore, the fixing ring is provided with a number of positioning protrusions, and each of the positioning protrusions is engaged in the positioning groove.

[0008] Furthermore, a number of adjusting bolts are rotatably connected to the mandrel, and each of the adjusting bolts is provided with a top block.

[0009] Furthermore, each of the adjusting bolts is equipped with an adjusting wheel.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] By setting a retaining ring between the center pin sleeve and the pressure ring, and the retaining ring being detachably connected to the bottom of the pressure ring, which is detachably connected to the upper mold, the retaining ring can be replaced and removed according to the inner tube of different sizes of tires, without the need to redesign and manufacture the mold, thus improving production efficiency. Attached Figure Description

[0012] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 A schematic diagram of the overall structure of a pin-sleeve vulcanizing mold;

[0014] Figure 2 A schematic diagram of the pressure ring structure provided in an embodiment of this utility model.

[0015] In the diagram: 1. Vulcanizing mold body; 11. Upper mold; 12. Lower mold; 2. Center pin sleeve; 3. Mandrel; 31. Adjusting bolt; 32. Top block; 33. Adjusting wheel; 4. Pressure ring; 41. Positioning groove; 5. Fixing ring; 51. Positioning protrusion. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-2 As shown in the embodiment of this utility model, a pin sleeve vulcanizing mold structure includes a vulcanizing mold body 1, which includes an upper mold 11 and a lower mold 12. A central pin sleeve 2 is provided on the lower mold 12 to support the core cylinder. A plurality of core rods 3 are provided between the upper mold 11 and the lower mold 12. A pressure ring 4 is detachably connected to the lower surface of the upper mold 11. A fixing ring 5 is detachably connected below the pressure ring 4. The fixing ring 5 is located between the central pin sleeve 2 and the pressure ring 4.

[0019] The upper mold 11 is generally made of a complete steel billet and has a cavity that precisely matches the shape of the tire core. It can be moved by the lifting force of the vulcanizing machine and cooperate with the lower mold 12 (shoe mold) to vulcanize the core material into the shape of the tire core.

[0020] The lower mold 12 is generally made of a complete steel billet that has been processed, and has the inner contour and holes of the tire core cylinder. The lower mold 12 can cooperate with the upper mold 11 to realize the vulcanization molding of the core cylinder material.

[0021] The center pin sleeve 2 is the main component connecting the upper mold 11 and the lower mold 12, realizing the positioning and support of the core material. The center pin sleeve 2 is generally annular and has a protruding structure (not shown in the figure) that matches the internal shape of the upper mold 11 and the lower mold 12.

[0022] During the manufacturing process of the vulcanizing mold body 1, a fixing ring 5 is set between the central pin sleeve 2 and the pressure ring 4. The fixing ring 5 is detachably connected to the bottom of the pressure ring 4, and the pressure ring 4 is detachably connected to the upper mold 11. The fixing ring 5 can be replaced and removed according to the inner tube of different sizes of tires, without the need to redesign and manufacture the mold, thus improving production efficiency.

[0023] In one embodiment, see Figure 1 and Figure 2 As shown, the pressure ring 4 is provided with a positioning groove 41 along the circumferential direction. The positioning groove 41 is used to snap the fixing ring 5, which facilitates the disassembly and replacement of the fixing ring 5.

[0024] In one embodiment, see Figure 1 and Figure 2 The fixing ring 5 is provided with several positioning protrusions 51, and each of the positioning protrusions 51 is engaged in the positioning groove 41. In order to facilitate the fixing ring 5 to be engaged in the positioning groove 41, the fixing ring 5 is provided with several positioning protrusions 51 in a corresponding manner along the circumferential direction. The fixing ring 5 is engaged in the positioning groove 41 on the pressure ring 4 by the several positioning protrusions 51, which facilitates the removal and replacement of the fixing ring 5 on the pressure ring 4 to adapt to tire inner tubes of different sizes.

[0025] In one embodiment, see Figure 1 and Figure 2 Several adjusting bolts 31 are rotatably connected to the core rod 3. Each adjusting bolt 31 is provided with a top block 32. The adjusting bolt 31 rotates and drives the top block 32 until the top block 32 abuts against and fits against the outer wall of the fixing ring 5, thereby fixing the fixing ring 5.

[0026] In one embodiment, see Figure 1 and Figure 2Each adjusting bolt 31 is equipped with an adjusting wheel 33. The adjusting wheel 33 is used to facilitate the rotation of the adjusting bolt 31 so that the top block 32 abuts against the outer wall of the fixing ring 5, making it easy to tightly fix the fixing ring 5.

[0027] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A pin-on-sleeve vulcanization mold structure comprising a vulcanization mold body (1) including an upper mold (11) and a lower mold (12), characterized in that, A central pin sleeve (2) is provided on the lower mold (12), and a plurality of mandrels (3) are provided between the upper mold (11) and the lower mold (12). A pressure ring (4) is detachably connected to the lower surface of the upper mold (11), and a fixing ring (5) is detachably connected below the pressure ring (4). The fixing ring (5) is located between the central pin sleeve (2) and the pressure ring (4).

2. A pin-on-sleeve vulcanization mold structure according to claim 1, wherein The pressure ring (4) is provided with a positioning groove (41) along the circumferential direction.

3. A pin-on-sleeve vulcanization mold structure according to claim 2, wherein The fixing ring (5) is provided with a number of positioning protrusions (51), and each of the positioning protrusions (51) is engaged in the positioning groove (41).

4. The pin-on-socket vulcanization mold structure of claim 1, wherein The core rod (3) is rotatably connected to several adjusting bolts (31), and each of the adjusting bolts (31) is provided with a top block (32).

5. A pin-on-sleeve vulcanization mold structure according to claim 4, wherein Each of the adjusting bolts (31) is equipped with an adjusting wheel (33).

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