Center mechanism of vulcanizing machine and vulcanizing machine

Abstract

The utility model provides a vulcanizer center mechanism and vulcanizer, wherein the vulcanizer center mechanism comprises a ring cover and a nozzle, the ring cover is provided with a steam channel communicated with a vulcanization cavity, and the steam channel is provided with an air inlet and a jet orifice; the nozzle is arranged at the jet orifice, and steam in the steam channel is jetted into the vulcanization cavity through the nozzle in a fan-shaped distribution manner. The utility model solves the problem of overlarge impact force of steam on the inner wall of the capsule in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanizing machine technology, specifically to a vulcanizing machine center mechanism and a vulcanizing machine. Background Technology

[0002] The central mechanism of the hydraulic vulcanizing machine shapes and vulcanizes the tire, providing precise pressure and temperature control to ensure tire quality and performance. During vulcanization, shaping steam enters the ring seat through the inlet pipe and is then sprayed into the bladder through the porous structure of the ring cover to shape the tire and ensure the quality of vulcanization.

[0003] The existing central mechanism has multiple vents evenly distributed on the side of the ring cover to disperse the incoming steam into the bladder. Each vent has a small diameter, resulting in high-speed steam flow that impacts the inner wall of the bladder. This impact is then transmitted to the tire, increasing the risk of tire defects and raising production costs for tire manufacturers. Furthermore, the uneven distribution of steam within the bladder cavity can lead to significant temperature variations across the tire surface, affecting tire quality and ultimately lowering the tire's overall quality. Utility Model Content

[0004] The main purpose of this invention is to provide a vulcanizing machine center mechanism and a vulcanizing machine to solve the problem of excessive impact force of steam on the inner wall of the capsule in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a vulcanizing machine center mechanism is provided, including a ring cover and a nozzle. The ring cover has a steam channel communicating with the vulcanizing chamber, and the steam channel has an air inlet and an injection port. The nozzle is disposed at the injection port, and the steam in the steam channel is injected into the vulcanizing chamber in a fan-shaped distribution through the nozzle.

[0006] Furthermore, the inner wall of the air inlet has multiple air intake ribs, which are arranged at intervals along the side wall surface of the air inlet.

[0007] Furthermore, the air intake has an adjacent first side and a second side, the area of ​​the first side is larger than that of the second side, and the air intake rib is located on the first side and extends along the extension direction of the second side.

[0008] Furthermore, the intake ribs are ring-shaped, and multiple intake ribs form a loop-shaped structure.

[0009] Furthermore, the steam passage includes an inlet section and an extension section. An air inlet is provided at the inlet section, and an injection port is provided at the extension section. The size of the inlet section is larger than that of the extension section, and the air inlet is angled to the end face of the ring cover.

[0010] Furthermore, there are multiple injection ports, including an injection port at the inlet section; and / or at least a portion of the extension section extends circumferentially along the ring cover, with injection ports provided at at least two different locations on the extension section.

[0011] Furthermore, there are multiple spray nozzles and spray ports, and they are set up one-to-one.

[0012] Furthermore, the ring cover also has a return air port, and the inner wall of the return air port has multiple return air ribs, which are arranged at intervals along the side wall surface of the air inlet.

[0013] Furthermore, the return air rib includes a first section, a second section, and a third section that are bent and connected in sequence. The first section and the third section are located on the same side of the second section and form a U-shaped structure.

[0014] According to another aspect of the present invention, a vulcanizing machine is provided, including the aforementioned vulcanizing machine central mechanism.

[0015] By applying the technical solution of this utility model, a nozzle is set at the injection port, so that the steam in the steam channel is atomized by the nozzle and enters the vulcanizing chamber in a fan shape. In this way, the steam entering the vulcanizing chamber is more dispersed and uniform, and the impact force is very small. Not only can the steam quickly fill the entire inner cavity of the bladder, but this steam ejection method also reduces the impact force of the steam on the inner wall of the bladder to almost zero, thereby effectively protecting the bladder, increasing the service life of the bladder, and saving tire manufacturing costs. At the same time, this ejection method also ensures the uniformity of the vulcanized inner wall of the tire and the heating, thereby improving the quality grade of the tire. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A partial structural schematic diagram of the vulcanizing machine of this utility model is shown;

[0018] Figure 2 It shows Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 A schematic diagram of the ring cover of this utility model is shown;

[0020] Figure 4 It shows Figure 3 Axonometric drawing;

[0021] Figure 5 A schematic diagram of the vulcanizing machine of this utility model is shown.

[0022] The above figures include the following reference numerals:

[0023] 10. Base; 20. Central column; 30. Edge column; 40. Vulcanizing chamber; 41. Lower hot plate; 42. Lower mold; 43. Upper mold; 50. Tire loading mechanism; 60. Tire unloading mechanism; 70. Mold adjusting device; 80. Mold locking device; 90. Vulcanizing machine central mechanism; 91. Ring cover; 911. Steam passage; 9111. Inlet section; 9112. Extension section; 912. Air inlet; 9121. Air inlet rib; 9122. First side; 9123. Second side; 913. Injection port; 914. Air return port; 9141. Air return rib; 92. Nozzle; 93. Capsule; 94. Guide shaft; 95. Ring seat; 96. Air inlet pipe; 97. Air return pipe; 100. Tire. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] To address the problem of excessive impact force of steam on the inner wall of the capsule in the prior art, this utility model provides a vulcanizing machine center mechanism and a vulcanizing machine, wherein the vulcanizing machine includes the following vulcanizing machine center mechanism.

[0028] like Figures 1 to 4 The vulcanizing machine center mechanism 90 shown includes a ring cover 91 and a nozzle 92. The ring cover 91 has a steam channel 911 communicating with the vulcanizing chamber. The steam channel 911 has an air inlet 912 and an injection port 913. The nozzle 92 is located at the injection port 913. The steam in the steam channel 911 is injected into the vulcanizing chamber in a fan shape through the nozzle 92.

[0029] In this embodiment, by setting a nozzle 92 at the injection port 913, the steam in the steam channel 911 is atomized by the nozzle 92 and enters the vulcanizing chamber in a fan-shaped distribution. In this way, the steam entering the vulcanizing chamber is more dispersed and more uniform, with very little impact force. This not only allows the steam to quickly fill the entire inner cavity of the bladder 93, but also reduces the impact force of the steam on the inner wall of the bladder 93 to almost zero, thereby effectively protecting the bladder 93, increasing the service life of the bladder 93, and saving the manufacturing cost of the tire 100. At the same time, this spraying method also ensures the uniformity of the vulcanized inner wall of the tire and the heating, thereby improving the quality grade of the tire 100.

[0030] It should be noted that the up and down direction in this embodiment refers to... Figure 1 The up and down directions in the middle.

[0031] like Figure 1 , Figure 2 As shown, the vulcanizing chamber 40 in this embodiment includes an upper main plate and a lower bottom plate, which are arranged from top to bottom. A lower heating plate 41 for heating is provided on the upper side of the lower bottom plate. A vulcanizing cavity is formed between the upper main plate and the lower bottom plate. Inside the vulcanizing cavity, there is a capsule 93 for carrying steam. The capsule 93 is located above the lower heating plate 41, and the ring cover 91 is located inside the capsule 93 and is fixed to the lower bottom plate by components such as the ring seat 95 below the ring cover 91. The air inlet pipe 96 and the air return pipe 97 are fixed to the ring seat 95 by welding. The ring cover 91 is fixed to the ring seat 95 by bolts. The ring seat 95, the ring cover 91, and the upper clamping plate are fixed to the guide shaft 94 of the vulcanizing machine center mechanism 90. The lower clamping plate is fixed to the ring seat 95. The upper end of the capsule 93 is fixed to the upper clamping plate, and the lower end of the capsule 93 is fixed to the lower clamping plate, thereby forming a closed cavity for carrying steam. Tire 100 is located on the outer periphery of capsule 93 and sandwiched between upper mold 43 and lower mold 42. Steam first enters ring seat 95 through air inlet pipe 96, then enters steam channel 911 of ring cover 91 through ring seat 95, and is then ejected through injection port 913 on ring cover 91, entering capsule 93. At this time, return air pipe 97 is closed. Air intake stops when the steam in capsule 93 reaches a preset pressure, and lower heating plate 41 fixed on seat 10 begins to heat upper mold 43 and lower mold 42, entering the formal vulcanization process. In this embodiment, nozzle 92 is an atomizing nozzle that enables the ejected steam to be distributed in a fan shape.

[0032] In this embodiment, the inner wall of the air inlet 912 has multiple air inlet ribs 9121, which are arranged at intervals along the side wall surface of the air inlet 912, thereby further optimizing the distribution of steam and reducing the impact force of steam on the capsule 93. Specifically, in this embodiment, the air inlet 912 is located at one end of the steam channel 911 and is connected to the steam channel 911. Both the steam channel 911 and the air inlet 912 are located on the side of the ring cover 91 near the lower heating plate 41 to facilitate the connection between the air inlet pipe 96 and the air inlet 912. The steam channel 911 is designed as a fan-shaped groove, and the air inlet 912 is designed as a U-shaped groove at one end of the steam channel 911. The air inlet pipe 96 is connected to the air inlet 912 in a vertical direction, so that the steam impacts the horizontal side wall of the air inlet 912 after entering the air inlet 912. The horizontal side wall of the air inlet 912 is provided with air inlet ribs 9121, thereby forming a corrugated water surface ripple structure on the side wall of the air inlet 912. When the steam impacts the side wall of the air inlet 912, the water surface ripple structure can play a good buffering role for the steam, thereby ensuring the smoothness of the steam flow and reducing the impact force of the steam on the capsule 93. Of course, depending on the actual requirements, the vertical sidewall of the air inlet 912 can also be provided with an air inlet rib 9121 to further guide the distribution of steam. When the air inlet 912 is set in other directions, the setting direction of the air inlet rib 9121 changes with the direction of the air inlet 912, ensuring that the air inlet rib 9121 is set on the sidewall of the air inlet 912 that is impacted by steam.

[0033] like Figure 4 As shown, in this embodiment, the air inlet 912 has adjacent first side surface 9122 and second side surface 9123. The area of ​​the first side surface 9122 is larger than that of the second side surface 9123. The air inlet rib 9121 is located on the first side surface 9122 and extends along the extending direction of the second side surface 9123. The first side surface 9122 is the horizontal sidewall of the air inlet 912, and the second side surface 9123 is the vertical sidewall of the air inlet 912. The steam flowing out from the air inlet pipe 96 first impacts the first side surface 9122, hence the air inlet rib 9121 is provided on the first side surface 9122.

[0034] In this embodiment, since the air inlet 912 is configured with a U-shaped structure, the corresponding air inlet ribs 9121 are annular, and multiple air inlet ribs 9121 form a loop structure. Specifically, the U-shaped structures of each air inlet rib 9121 are of different sizes, and each air inlet rib 9121 is arranged at intervals from the center to the edge of the first side surface 9122. In this way, a pseudo-horizontal corrugated structure is formed on the first side surface 9122 to buffer the steam and thus ensure the smoothness of the steam flow.

[0035] like Figure 3 , Figure 4 As shown, in this embodiment, the steam passage 911 includes an inlet section 9111 and an extension section 9112. An air inlet 912 is provided at the inlet section 9111, and an injection port 913 is provided at the extension section 9112. The inlet section 9111 is larger than the extension section 9112, and the air inlet 912 is angled to the end face of the ring cover 91. Specifically, the inlet section 9111 is located at one end of the steam passage 911, and the extension section 9112 communicates with the inlet section 9111 and extends to the other end of the steam passage 911, thus forming a steam flow channel within the ring cover 91. The extension path of the extension section 9112 has branches extending towards the outer circumferential surface of the ring cover 91 to provide the injection port 913. Considering that the inlet section 9111 is provided with an air inlet 912, the cross-sectional size of the inlet section 9111 is larger than the cross-sectional size of the extension section 9112 to facilitate steam entry into the steam passage 911. In this embodiment, steam enters the ring cover 91 from the ring seat 95 below the ring cover 91. Therefore, the opening of the air inlet 912 faces downward and is perpendicular to the horizontal end face of the ring cover 91 to facilitate steam entering the steam channel 911. Of course, the air inlet direction can also be set at other angles to the end face of the ring cover 91 to facilitate steam entering the steam channel 911 and being sprayed into the capsule 93.

[0036] In this embodiment, there are multiple injection ports 913, with one injection port 913 at the inlet section 9111 and two injection ports 913 at the extension section 9112. At least a portion of the extension section 9112 extends circumferentially along the ring cover 91, and injection ports 913 are provided at at least two different locations on the extension section 9112. To ensure uniform steam filling of the capsule 93, the injection ports 913 in this embodiment are evenly distributed along the extension direction of the steam channel 911, i.e., circumferentially along the ring cover 91, thereby improving the uniformity of steam entering the capsule 93 and dispersing the steam into the interior of the capsule 93, further reducing the impact force of the steam on the capsule 93. Of course, the number of injection ports 913 is not unique and can be flexibly adjusted according to actual needs and parameters such as the size and length of the steam channel 911 to meet the steam filling requirements of the capsule 93.

[0037] In this embodiment, there are multiple injection ports 913 and nozzles 92, arranged in a one-to-one correspondence, so that the steam ejected from each injection port 913 can enter the capsule 93 in an atomized state, thereby reducing the impact force on the capsule 93. In this embodiment, there are three nozzles 92 and three injection ports 913. In actual use, the number of nozzles 92 and injection ports 913 can be adjusted as needed.

[0038] In this embodiment, the ring cover 91 also has a return air port 914. Similar to the arrangement of the air inlet 912, the inner wall of the return air port 914 has multiple return air ribs 9141. The return air ribs 9141 are arranged at intervals along the side wall surface of the air inlet 912, thus forming a water-like ripple structure to buffer the impact of steam and ensure the smoothness of steam flow. The shape of the return air port 914 in this embodiment is similar to that of the air inlet 912, but in order to facilitate the return of steam, the return air port 914 is not connected to the steam channel 911, but is adjacent to the steam channel 911. A groove is provided on the side of the ring cover 91 near the lower heating plate 41, which is connected to the circumferential side of the ring cover 91. The opening of the groove is the return air port 914. The return air rib 9141 is adapted to the shape of the return air port 914 and is set in a U-shape. The opening of the U-shape faces the circumferential side of the ring cover 91. Multiple return air ribs 9141 are arranged from small to large from the center of the return air port 914 to the edge of the return air port 914, thus forming a horizontal corrugated structure with concave and convex distribution. This reduces the impact force on the return air pipe 97 when steam flows out of the capsule 93 to the return air port 914 and then out to the return air pipe 97, thereby improving the stability and reliability of the entire steam conveying system.

[0039] like Figure 3 , Figure 4 As shown, in this embodiment, the return air rib 9141 includes a first section, a second section, and a third section that are sequentially bent and connected. The first section and the third section are located on the same side of the second section and form a U-shaped structure, so that the shape of the return air rib 9141 matches the shape of the return air port 914, thereby playing a good buffering role for the outflowing steam, ensuring the smoothness of the steam flow, reducing the impact force on the capsule 93, and reducing the impact force on the return air pipe 97, thus improving the stability of the steam system.

[0040] In this embodiment, the ring cover 91, as a crucial component of the central mechanism, prevents hydraulic oil leakage in the hydraulic system during vulcanization, ensuring stable pressure during vulcanization. It also protects internal components from external dust and impurities, extending the equipment's lifespan. Furthermore, the ring cover 91 injects incoming steam into the bladder 93 for shaping the tire 100. The ring cover 91 in this embodiment significantly reduces the impact of the injected steam on the bladder 93 and improves the stability of the entire steam delivery and shaping system, thereby enhancing the quality grade of the tire 100. Experiments have shown that the ring cover 91 in this embodiment can increase the lifespan of the bladder 93 by more than 12%.

[0041] It should be noted that the steam channel 911, air inlet 912, jet nozzle 913, and return air inlet 914 in this embodiment can be enlarged or reduced according to the requirements of flow rate and speed; the water surface ripple structure at the air inlet 912 and return air inlet 914 can be realized in the form of a fence, etc., and the structure of the atomizing nozzle 92 can be made into a trumpet shape.

[0042] like Figure 5 The vulcanizing machine shown includes a base 10, a central column 20, multiple edge columns 30, a vulcanizing chamber 40, a tire loading mechanism 50 for loading tires and a tire unloading mechanism 60 for unloading tires, a mold adjusting device 70, a mold locking device 80, and a vulcanizing machine center mechanism 90. The central column 20 and edge columns 30 are both connected to the base 10, and are arranged in a V-shape, with the edge columns 30 located at the ends of the V-shape and the central column 20 located at the corners. The vulcanizing chamber 40 is located within the V-shape and includes an upper main plate and a lower base plate. Adjacent central columns 20... Among the edge columns 30, one of the middle column 20 and the edge column 30 is provided with a tire loading mechanism 50, and the other of the middle column 20 and the edge column 30 is provided with a tire unloading mechanism 60; the mold adjusting device 70 is provided on the upper main plate and is movably disposed relative to the base 10, and can adjust the relative position between the upper main plate and the lower base plate; the mold locking device 80 is provided between the upper main plate and the lower base plate, and can lock the relative position when the upper main plate and the lower base plate are engaged; the vulcanizing machine central mechanism 90 is connected to the base 10, at least a part of the vulcanizing machine central mechanism 90 is located in the vulcanizing chamber 40, and provides steam to the vulcanizing chamber 40.

[0043] This embodiment arranges the intermediate column 20 and edge columns 30 in a V-shape, and the tire loading mechanism 50 and tire unloading mechanism 60 do not have separate columns, but are instead mounted on the intermediate column 20 or edge column 30. This eliminates the need for separate support structures for the tire loading mechanism 50 and tire unloading mechanism 60 in traditional vulcanizing machines, integrating their structure and function into the edge column 30 and intermediate column 20. Consequently, the intermediate column 20 and edge column 30 not only support the vulcanizing chamber 40 but also enable the loading mechanism to function. The tire mechanism 50 and the tire unloading mechanism 60 are supported, which simplifies the structure of the vulcanizing machine, saves space and reduces costs. At the same time, the vulcanizing chamber 40 is set in a V-shaped structure, and the mold adjustment device 70, the mold locking device 80 and the vulcanizing machine central mechanism 90 are arranged around the vulcanizing chamber 40. This facilitates the operation of the mold adjustment device 70, the mold locking device 80 and the vulcanizing machine central mechanism 90 in adjusting the mold, locking the mold and providing steam to the vulcanizing chamber 40, so as to facilitate the smooth vulcanization process of the tire 100, which is conducive to improving work efficiency and saving energy and reducing consumption.

[0044] It should be noted that "multiple" in the above embodiments refers to at least two.

[0045] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0046] 1. Solved the problem of excessive impact force and uneven spraying in existing ring cover spraying systems, which affected tire quality;

[0047] 2. By setting nozzles at the injection port, the steam in the steam channel is atomized by the nozzles and enters the vulcanizing chamber in a fan shape. In this way, the steam entering the vulcanizing chamber is more dispersed and uniform, with very little impact force. This not only allows the steam to quickly fill the entire inner cavity of the bladder, but also reduces the impact force of the steam on the inner wall of the bladder to almost zero, thereby effectively protecting the bladder, increasing its service life, and saving tire manufacturing costs. At the same time, this injection method also ensures the uniformity of the vulcanized inner wall of the tire and the heating, thereby improving the quality grade of the tire.

[0048] 3. A water ripple structure with uneven distribution is formed on the side wall of the air inlet. When steam impacts the side wall of the air inlet, the water ripple structure can play a good buffering role for the steam, thereby ensuring the smoothness of steam flow and reducing the impact force of steam on the capsule.

[0049] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A central mechanism for a vulcanizing machine, characterized in that, include: A ring cover (91) having a steam passage (911) communicating with a vulcanizing chamber, the steam passage (911) having an air inlet (912) and an injection port (913); The nozzle (92) is located at the injection port (913), and the steam in the steam channel (911) is injected into the vulcanization chamber in a fan shape through the nozzle (92).

2. The vulcanizing machine center mechanism according to claim 1, characterized in that, The inner wall of the air inlet (912) has a plurality of air intake ribs (9121), which are arranged at intervals along the side wall surface of the air inlet (912).

3. The vulcanizing machine center mechanism according to claim 2, characterized in that, The air inlet (912) has an adjacent first side (9122) and a second side (9123), the area of ​​the first side (9122) is larger than that of the second side (9123), and the air inlet rib (9121) is located on the first side (9122) and extends along the extension direction of the second side (9123).

4. The vulcanizing machine center mechanism according to claim 2, characterized in that, The air intake rib (9121) is ring-shaped, and a loop structure is formed between multiple air intake ribs (9121).

5. The vulcanizing machine center mechanism according to claim 1, characterized in that, The steam passage (911) includes an inlet section (9111) and an extension section (9112). The inlet section (9111) is provided with the air inlet (912), and the extension section (9112) is provided with the injection port (913). The size of the inlet section (9111) is larger than the size of the extension section (9112). The air inlet (912) is angled to the end face of the ring cover (91).

6. The vulcanizing machine center mechanism according to claim 5, characterized in that, The injection port (913) is multiple, among which, The inlet section (9111) is provided with the injection port (913); and / or At least a portion of the extension (9112) extends circumferentially along the ring cover (91), and the injection port (913) is provided at at least two different locations on the extension (9112).

7. The vulcanizing machine center mechanism according to claim 1, characterized in that, There are multiple spray ports (913) and multiple nozzles (92), and they are arranged in a one-to-one correspondence.

8. The vulcanizing machine center mechanism according to claim 1, characterized in that, The ring cover (91) also has a return air port (914), and the inner wall of the return air port (914) has a plurality of return air ribs (9141), which are arranged at intervals along the side wall surface of the air inlet (912).

9. The vulcanizing machine center mechanism according to claim 8, characterized in that, The return air rib (9141) includes a first section, a second section, and a third section that are bent and connected in sequence. The first section and the third section are located on the same side of the second section and form a U-shaped structure.

10. A vulcanizing machine, characterized in that, The vulcanizing machine center mechanism includes any one of claims 1 to 9.

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