Length-adjustable vulcanization heating equipment

By using adjustable-length vulcanization heating equipment, the problem of uneven vulcanization of long rubber parts is solved by using flange pipe splicing and a precise control system. This achieves a highly efficient, flexible and safe vulcanization process, reducing resource consumption and costs.

CN223904350UActive Publication Date: 2026-02-13JINAN SHUIYUAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520331410.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-13
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

In the existing technology, the vulcanization process of long rubber parts has problems such as uneven vulcanization, poor equipment adaptability, low flexibility, serious waste of resources and high safety risks, especially in continuous vulcanization production lines where it is difficult to achieve uniform heating.

Method used

The system employs adjustable-length vulcanization heating equipment, which forms vulcanization heating pipelines by splicing flange pipes. Combined with a pressure and fluid control system, it achieves precise temperature and pressure control and is equipped with guiding components and support structures to ensure uniform vulcanization of rubber parts.

Benefits of technology

It improves the applicability and flexibility of the equipment, reduces costs, improves vulcanization quality and efficiency, reduces energy consumption and exhaust emissions, and ensures product consistency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of rubber vulcanization equipment, and discloses vulcanization heating equipment with adjustable length, which comprises a vulcanization heating pipeline formed by splicing a plurality of flange pipes, and the two ends of each flange pipe are provided with flange plates; sealing covers are mounted at the two ends of the moving-out vulcanization heating pipeline; the pressure and fluid control system is arranged on the vulcanization heating pipeline and comprises at least one pressure adjusting device used for accurately controlling the air pressure in the vulcanization heating pipeline; the at least one pressure relief device is used for quickly releasing gas in the vulcanization heating pipeline when necessary; and the at least one discharging device is used for discharging condensed water vapor or other unwanted fluid generated in the vulcanization process. The device improves the applicability and the flexibility, is particularly suitable for processing rubber parts with different lengths, reduces the requirements on a plurality of vulcanizing tanks with fixed lengths, reduces the cost and the operation complexity, and can effectively improve the efficiency.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rubber vulcanization equipment field more specifically, it relates to a length adjustable vulcanization heating equipment. BACKGROUND

[0002] Vulcanization is a key step in the rubber industry, through chemical reaction, linear or branched rubber molecules are crosslinked into three-dimensional network structure, thereby significantly improving the physical properties and chemical stability of rubber products. Vulcanization not only enhances the pressure resistance, wear resistance and corrosion resistance of long size rubber parts, but also greatly improves the elasticity and strength, making it more suitable for various harsh application environments.

[0003] The vulcanization process of long size rubber parts usually consists of three main stages: first, mixing, which involves uniformly mixing raw rubber with various additives; second, extrusion molding, which uses a mold to shape the mixed rubber material into the desired form; finally, vulcanization, which involves treating the rubber product in a specific device to complete the final curing process.

[0004] Currently, there are two main ways to vulcanize long size rubber parts: closed mode vulcanization and continuous vulcanization production line. Closed mode vulcanization is suitable for products with relatively small lengths, such as vulcanization in a closed tank, which controls temperature, pressure, and time to achieve the vulcanization process. For longer long size rubber parts, such as long rubber hoses used in special industrial applications like oil and natural gas transportation, fire water bags, etc., continuous vulcanization production lines are more suitable. This method allows long size rubber parts to pass through heating areas one by one in a production line, achieving efficient vulcanization production. However, for long size rubber parts with special quality and performance requirements, continuous vulcanization production lines may not ensure uniform heating throughout the length of the long size rubber part, leading to uneven local vulcanization and affecting the performance and reliability of the product.

[0005] To meet the requirement of uniform vulcanization of long size rubber parts, large-scale vulcanization tanks (also known as vulcanization kettles or vulcanization furnaces) are designed to accommodate and heat these super-long products. Such tanks must have sufficient length and specific structural design considerations to ensure safety and reliability under high pressure conditions. For example, the corners of the tank side wall and end cover are designed with large radii to transition, and the end cover is designed in a spherical shape to reduce stress concentration and evenly distribute pressure. After long size rubber parts are stacked, they cannot fully occupy the space caused by the aforementioned design (large radii at the corners of the tank side wall and end cover, spherical shape of the end cover), resulting in low space utilization. During vulcanization, the internal empty space consumes more energy, and the exhaust gas during vulcanization is also more, resulting in serious resource waste. Moreover, during the vulcanization process, these empty spaces cause significant pressure and temperature losses, making it difficult to control process parameters and making it difficult to achieve high precision in various vulcanization parameters.

[0006] It is worth noting that large vulcanization tank equipment investment is huge, not only including the manufacturing cost of the tank itself, but also including installation, maintenance and operation cost. In particular, for the hose length more than 8 meters, the size of the required vulcanization tank will be very large, further increasing the cost. Large vulcanization tank due to its fixed size, poor adaptability, low flexibility, while operating a higher security risk. Invention content

[0007] The utility model aims at overcoming at least one of the above prior art defects, providing a length-adjustable vulcanization heating equipment, which is used to solve the technical problems of using large vulcanization tank in production process, fixed size, poor adaptability and low flexibility.

[0008] The technical scheme adopted by the utility model is a length-adjustable vulcanization heating equipment, comprising: a vulcanization heating pipeline, which is spliced by a plurality of flange pipes, the flange pipe is a pipe with flanges arranged at both ends; the vulcanization heating pipeline is provided with a sealing cover at both ends; a pressure and fluid control system is arranged on the vulcanization heating pipeline, which comprises: at least one pressure regulating device for accurately controlling the air pressure in the vulcanization heating pipeline; at least one pressure relief device for quickly releasing the gas in the vulcanization heating pipeline when necessary; at least one discharge device for discharging the condensed water vapor or other unnecessary fluid generated in the vulcanization process.

[0009] The plurality of flange pipes can be connected together by bolts and nuts, which allows the length of the vulcanization heating pipeline to be flexibly adjusted according to actual needs, improves the applicability and flexibility of the equipment, and is particularly suitable for processing rubber parts of different lengths, reduces the need for multiple fixed-length vulcanization tanks, reduces the cost, and can effectively improve the efficiency.

[0010] Further, the inner wall of the flange pipe is a straight cylinder structure, and the inner side of the sealing cover is a flat surface. After installation, the straight cylinder structure and the flat inner side of the sealing cover can form a vertical surface, which is beneficial to maximize the utilization of the internal space, allows the rubber tubes to be arranged more compactly, reduces the empty space, ensures uniform pressure distribution during the vulcanization process, improves the quality of vulcanization, and reduces energy consumption and waste gas emissions. The spliced flange pipe not only ensures the advantages of long-size rubber parts in product quality consistency, adaptation to special needs, and handling of large sizes, but also solves the problem of uneven vulcanization encountered in the production of long-size rubber parts in continuous vulcanization production lines. The spliced flange pipe has obvious advantages in vulcanization quality; specifically, the spliced flange pipe can achieve more uniform vulcanization effect, accurately control the temperature and pressure to ensure that the entire product achieves the ideal vulcanization degree, reduce the risk of under-vulcanization or over-vulcanization, and ensure uniform heating of long-size rubber parts. The relatively stable vulcanization environment inside reduces internal stress caused by rapid heating or cooling, reducing the possibility of cracks and other defects. The spliced flange pipe is also particularly suitable for special rubber materials, easy to adjust process parameters to meet the needs of different materials, and allows the addition of special auxiliary agents or post-processing during the vulcanization process. Independent control of each batch ensures the consistency of product quality, and the closed environment reduces external interference, improving the stability and reliability of the product. The flange pipe is welded from standard DN200 stainless steel pipe, which can significantly save project cost, has small processing difficulty and low leakage risk, is easy to use and maintain, and effectively improves the utilization rate of the internal space of the equipment, significantly reducing the amount of steam consumed during the vulcanization process of the rubber tube, and also reducing the amount of waste gas emissions. Due to the more compact overall volume of the tank, the pressure and temperature control during the vulcanization process of long-size rubber parts is more precise and stable, which can effectively improve the precision of vulcanization control and the quality of rubber tube vulcanization, and reduce the rate of defective products.

[0011] Further, it further comprises a guide component installed at the bottom of the vulcanization heating pipe and arranged axially along the vulcanization heating pipe, for guiding the entry of the conveying platform carrying the rubber parts. Through the guide component, the conveying platform carrying the rubber parts can be quickly moved into and out of the vulcanization heating pipe, effectively improving the efficiency of transferring the rubber parts, thereby improving the efficiency of rubber part vulcanization production.

[0012] Further, the guide component is two parallel guide rails, and the vulcanization heating pipe has a mounting plate fixed at the bottom, and the two guide rails are installed on the mounting plate in parallel. The parallel guide rails provide stable support and guiding function, ensuring the straight-line movement of the conveying platform in the vulcanization heating pipe, avoiding deviation and jamming. The mounting plate fixes the position of the guide rails, enhancing the stability of the overall structure and ensuring the reliability of long-time operation.

[0013] Further, the support structure is provided with a plurality of supports arranged at the bottom of the vulcanization heating pipeline for fixing the vulcanization heating pipeline. The support structure comprises a position adjusting assembly and a height adjusting assembly. The position adjusting assembly is used to adjust the front and rear position of the vulcanization heating pipeline, and the height adjusting assembly is used to adjust the height of the vulcanization heating pipeline. The support structure provides flexible adjustment capability through the position adjusting assembly and the height adjusting assembly, ensuring that the vulcanization heating pipeline can be accurately positioned to the required height and position. This not only improves the adaptability and operation convenience of the equipment, for example, by adjusting the support structure to incline the vulcanization heating pipeline, facilitating the discharge of internal condensate water, reducing the operation difficulty and time waste caused by height or position mismatch.

[0014] Further, the height adjusting assembly comprises a base, a fixed plate fixed on the base, each fixed plate being provided with no less than two threaded rods, each threaded rod being threadedly connected with at least two nuts, and a movable plate provided with through holes corresponding to the threaded rods, the threaded rods being sleeved on the through holes and located between the nuts on each threaded rod. The height adjusting assembly realizes the accurate adjustment of the height of the vulcanization heating pipeline through the combination of the threaded rods and the nuts. The tightening effect of the nuts ensures the stability of the movable plate and the vulcanization heating pipeline, while the threaded rods provide a flexible adjustment range, facilitating the height fine adjustment according to different requirements, ensuring the stability and safety of the equipment, and also having the advantages of low cost, high precision and strong load capacity.

[0015] Further, the position adjusting assembly comprises a pipeline support roller installed on the movable plate and rolling with the bottom of the vulcanization heating pipeline, and a U-shaped pipe clamp having threaded heads at both ends and being detachably installed on the movable plate through nuts for fixing the vulcanization heating pipeline on the movable plate. The position adjusting assembly realizes the flexible adjustment of the front and rear position of the vulcanization heating pipeline through the cooperation of the pipeline support roller and the U-shaped pipe clamp. The pipeline support roller reduces the friction, making the position adjustment easier, while the U-shaped pipe clamp ensures the firm fixation of the vulcanization heating pipeline, preventing loosening and displacement, and ensuring the stable operation of the equipment.

[0016] Further, the vulcanization heating pipeline is inclined downward by 0.3-0.7° from front to back. Preferably, the inclination is 0.5°, which can reduce the residual amount of condensate water by 90%, being the optimal inclination angle. The slight inclination angle helps to reduce the friction, making it easier for the conveying platform to enter the vulcanization heating pipeline, and is beneficial to the discharge of condensate water and other fluids, maintaining the dryness and cleanliness of the pipeline interior, and improving the operating efficiency and reliability of the entire system.

[0017] Further, it further comprises an environmental parameter monitoring device arranged on the vulcanization heating pipeline for real-time monitoring of the internal temperature and pressure, including a plurality of temperature monitoring devices and pressure monitoring devices, the temperature monitoring devices being evenly arranged along the length direction of the vulcanization heating pipeline. The multi-point temperature monitoring provides high-precision data, ensuring the stability and uniformity of the temperature and pressure during the vulcanization process, avoiding the situation of local temperature being too high or too low, improving the quality and consistency of the product, and reducing the rate of defective products. The real-time monitoring data can also be fed back to the controller to realize automatic control, further improving the production efficiency. The temperature monitoring device can be selected from a temperature sensor or a temperature transmitter, and the pressure monitoring device can be selected from a pressure sensor or a pressure transmitter.

[0018] Further, it further comprises a controller capable of controlling the pressure adjusting device according to the signals of the temperature monitoring device and the pressure monitoring device, so as to maintain a constant pressure and temperature in the closed vulcanization heating pipeline. The controller automatically adjusts the temperature and pressure according to the real-time monitoring data, realizes intelligent control of the vulcanization process, improves the automation level of production, reduces human intervention, ensures the stability and consistency of the process parameters, and further improves the product quality and production efficiency.

[0019] Compared with the prior art, the beneficial effects of the present application are that the plurality of flange pipes can be connected together through bolts and nuts, which design allows flexible adjustment of the length of the vulcanization heating pipeline according to actual needs, improves the applicability and flexibility of the equipment, is particularly suitable for processing rubber parts of different lengths, reduces the need for multiple fixed-length vulcanization tanks, reduces cost and operation complexity, and can effectively improve efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the overall structure of the present application.

[0021] Figure 2 It is a schematic view of the structure of the conveying platform of the present application.

[0022] Figure 3 It is a schematic view of the structure of the push-pull rod of the present application.

[0023] Figure 4 It is a schematic view of the structure of the lifting platform of the present application.

[0024] Figure 5 It is a schematic view of the local structure of the front end of the vulcanization heating pipeline of the present application.

[0025] Figure 6 It is a schematic view of the local structure of the rear end of the vulcanization heating pipeline of the present application.

[0026] Figure 7 It is a schematic view of the position of the drain valve on the vulcanization heating pipeline of the present application.

[0027] In the figure: 1, buffer platform; 2, conveying platform; 3, lifting platform; 4, controller; 5, vulcanization heating pipeline; 6, base; 7, guide component; 8, height adjusting assembly; 9, push-pull rod; 10, push-pull stop pin; 11, push-pull plate; 12, lifting platform support; 13, lifting guide rod; 14, manual pressure relief valve; 15, lifting cylinder; 16, guide component; 17, mounting frame; 18, pipeline support roller; 19, flange pipe; 20, pressure relief valve; 21, manual drain valve; 22, drain valve; 23, pneumatic diaphragm regulating valve; 24, pressure transmitter; 25, temperature transmitter; 26, mounting plate; 27, profiled groove; 28, bolt assembly; 29, sealing cover; 30, U-shaped pipe clamp; 31, fixed plate; 32, movable plate. DETAILED DESCRIPTION

[0028] The drawings of the utility model are only used for example description, and cannot be understood as the limitation of the utility model. In order to better illustrate the following embodiments, some components in the drawings are omitted, enlarged or reduced, and the size of the actual product is not represented. It is understandable that some known structures and their descriptions in the drawings can be omitted for those skilled in the art.

[0029] As Figures 1-7 shown, the scheme relates to a pipeline vulcanization production line for long-size rubber parts, which comprises a mounting frame 17; a buffer platform 1 and a conveying platform 2 are installed on the mounting frame 17, the conveying platform 2 is arranged on one side of the buffer platform 1 and the top of the conveying platform 2 is lower than the top of the buffer platform 1; a vulcanization heating device is arranged at the back of the conveying platform 2 and comprises a vulcanization heating pipeline 5 and a sealing cover 29, and the vulcanization heating device can select other sealed cylinder, pipeline or tank; a lifting platform 3 is arranged between the mounting frame 17 and the vulcanization heating device; wherein when the lifting platform 3 is lifted to a high position, the conveying platform 2 can enter the vulcanization heating device through the lifting platform 3; when the lifting platform 3 is lowered to a low position, the port of the vulcanization heating pipeline 5 is not affected by the lifting platform 3 and the sealing cover 29 can be installed, that is, sealing treatment is carried out. The specific implementation is as follows:

[0030] The mounting frame 17 is a frame structure made of aluminum profile, and the bottom is provided with a lifting-adjustable supporting leg, so that the buffer platform 1 and the conveying platform 2 can be stably adjusted to different inclinations.

[0031] The buffer platform 1 is preferably a buffer roller, which includes a roller frame and a plurality of rotating rollers arranged thereon, or can also be a roller structure, etc. In actual use, it is arranged at the outlet position of the extruder and does not need to be powered. During extrusion, the extruded long-size rubber part is gradually moved onto the buffer platform 1 and is provided with rolling friction by the rotating rollers thereon to move forward. When a long-size rubber part is completely extruded, the extrusion is cut off and stopped, and the extruded long-size rubber part is completely placed on the buffer platform 1. Then the extruded long-size rubber part on the buffer platform 1 is rolled onto the conveying platform 2, and the operation is repeated until a sufficient number of vulcanized products are accumulated on the conveying platform 2.

[0032] The conveying platform 2 is a U-shaped long-slot body made of aluminum alloy material. The top surface of the mounting frame 17 has a profile slot 27 perpendicular to the length direction of the buffer roller, and the buffer roller is mounted in the profile slot 27 through a plurality of bolt assemblies 28. The conveying platform 2 is arranged on one side of the buffer platform 1 and has a top lower than that of the buffer platform 1, so as to facilitate the movement (such as rolling) of the long-size rubber part on the buffer platform 1 to the conveying platform 2.

[0033] The guide device includes a guide component 16 and a guide component 7. The guide component 16 is arranged in the mounting frame 17, the lifting platform 3 and the vulcanization heating pipeline 5, respectively. When the lifting platform 3 is lifted to a high position, the guide components 16 in the mounting frame 17, the lifting platform 3 and the vulcanization heating pipeline 5 are sequentially spliced. The guide component 7 is installed on the conveying platform 2 and can cooperate with any guide component 16 arranged in the mounting frame 17, the lifting platform 3 and the vulcanization heating pipeline 5. The guide component 16 is specifically two parallel guide rails. The bottom of the vulcanization heating pipeline 5 is fixed with a mounting plate 26, and the two guide rails are fixed on the mounting plate 26. The guide component 7 is a roller installed at the bottom of the conveying platform 2 and rolling matched with the guide rails, respectively.

[0034] The push-pull plate 11 is installed at the bottom of the front end of the conveying platform 2, and the push-pull rod 9 is detachably installed on the push-pull plate 11 through the push-pull stop pin 10, so as to facilitate the movement of the conveying platform 2.

[0035] Sulfurization heating pipeline 5: As shown in the figure, the sulfurization heating pipeline 5 is spliced by several flange pipes 19, which are pipes with flanges installed at both ends, facilitating mutual connection and sealing of the ends. The sulfurization heating pipeline 5 is installed with a sealing cover 29 at both ends. By adding or subtracting the number of flange pipes 19, the length of the sulfurization heating pipeline 5 can be changed, thereby enabling the vulcanization of rubber parts of any length, improving the scope of application. The flange pipe 19 has a large thickness and can withstand a large pressure. Without special structural modification on the appearance, after using the spliced flange pipe 19, compared with the conventional sulfurization tank, the space utilization rate of the present scheme is improved by 20%, and the steam consumption is reduced by 30%. The sulfurization heating pipeline 5 is inclined downward by 0.3-0.7° from front to back. Through experimental verification, when the inclination angle is 0.3-0.7°, the pushing resistance of the conveying platform 2 is reduced by 20% and there is no slope sliding phenomenon. The preferred inclination is 0.5°, which can reduce the residual amount of condensed water by 95%, and is the best inclination angle. At the same time, a slight inclination angle helps to reduce friction, making it easier for the conveying platform 2 to enter the sulfurization heating pipeline 5, and it will not be very laborious when pulled out.

[0036] Support structure: A plurality of support structures are provided at the bottom of the sulfurization heating pipeline 5 for fixing the sulfurization heating pipeline 5; the support structure includes a position adjusting assembly and a height adjusting assembly 8; the position adjusting assembly is used to adjust the front and rear positions of the sulfurization heating pipeline 5, and the height adjusting assembly 8 is used to adjust the height of the sulfurization heating pipeline 5. The support structure provides flexible adjustment capability through the position adjusting assembly and the height adjusting assembly 8, ensuring that the sulfurization heating pipeline 5 can be accurately adjusted to the required height and position. This not only improves the adaptability and operation convenience of the equipment, for example, by adjusting the support structure to incline the sulfurization heating pipeline 5, it is convenient to discharge the condensed water inside, reducing the operation difficulty and time waste caused by height or position mismatch.

[0037] The height adjusting assembly 8 includes: a base 6; a fixed plate 31 fixed on the base 6, each fixed plate 31 is provided with not less than two screw rods, and each screw rod is threadedly connected with two nuts; an activity plate 32 provided with a through hole corresponding to the position of the screw rod, the through hole is sleeved on the screw rod, and the two nuts on each screw rod are located between the two nuts.

[0038] The position adjusting assembly includes a pipeline support roller 18 mounted on the movable plate 32 and rolling with the bottom of the vulcanization heating pipeline 5, and a U-shaped pipe clamp 30 with threaded ends mounted on the movable plate 32 through nuts to fix the vulcanization heating pipeline 5 on the movable plate 32. The position adjusting assembly realizes flexible adjustment of the front and rear positions of the vulcanization heating pipeline 5 through the cooperation of the pipeline support roller 18 and the U-shaped pipe clamp 30. The pipeline support roller 18 reduces the friction force, making the position adjustment more easy, while the U-shaped pipe clamp 30 ensures the firm fixation of the vulcanization heating pipeline 5, preventing loosening and displacement, and ensuring stable operation of the equipment.

[0039] The environmental parameter monitoring device is arranged on the vulcanization heating pipeline 5 and is used for real-time monitoring of internal temperature and pressure, and includes a plurality of temperature monitoring devices and pressure monitoring devices. The temperature monitoring devices are evenly arranged along the length direction of the vulcanization heating pipeline 5. The temperature monitoring devices can be temperature sensors or temperature transmitters 25, and the pressure monitoring devices can be pressure sensors or pressure transmitters 24.

[0040] The pressure and fluid control system is arranged on one side of the vulcanization heating pipeline 5 and includes at least one pressure adjusting device for accurately controlling the air pressure in the vulcanization heating pipeline 5, at least one pressure relief device for quickly releasing the gas in the vulcanization heating pipeline 5 when necessary, and at least one drainage device for draining the condensed water vapor or other unnecessary fluids generated in the vulcanization process. The pressure adjusting device is a pneumatic diaphragm regulating valve 23 installed at the top of the rear end of the vulcanization heating pipeline 5, the pressure relief device is a pressure relief valve 20 installed at the top of the front end of the vulcanization heating pipeline 5, and the drainage device is a drain valve 22 installed at the bottom of the rear end of the heating pipeline for draining condensed water to avoid heat absorption affecting the internal temperature. The selection of the pressure adjusting device, the pressure relief device and the drainage device belongs to the routine selection of those skilled in the art, which will not be described in detail here. The manual drainage valve 21 and the manual pressure relief valve 14 are also included for manual drainage and manual pressure relief, which are respectively installed at the bottom and top of the rear end of the vulcanization heating pipeline 5 to ensure safe operation.

[0041] The controller 4 is also included, which can automatically adjust the opening and closing size of the pneumatic diaphragm regulating valve 23 according to the signals of the temperature transmitter 25 and the pressure transmitter 24 to ensure the stability of the temperature and pressure in the vulcanization process.

[0042] Lifting platform 3: set between the mounting frame 17 and the vulcanization heating pipeline 5, specifically, mounted on the lifting platform support 12, the lifting guide rod 13 and the lifting cylinder 15 are installed on the lifting platform support 12 and can slide up and down. The lifting platform 3 is fixedly connected with the top end of the lifting guide rod 13 and the telescopic end of the lifting cylinder 15. When the lifting platform 3 is lifted to the high position, the conveying platform 2 can enter the vulcanization heating pipeline 5 through the lifting platform 3; when it is lowered to the low position, the port of the vulcanization heating pipeline 5 is not affected, and the sealing cover 29 can be installed for sealing treatment.

[0043] Working principle:

[0044] Firstly, the end of the long-size rubber part extruded by the extruder falls on the buffer roller, moves forward with the rotation of the rotating roller, is cut off and stopped extruding after reaching the set length. After the formed long-size rubber part is cooled for a period of time, it is pushed to the conveying platform 2, and after accumulating a certain amount, the conveying platform 2 carries the long-size rubber part to move to the vulcanization heating pipeline 5 through the lifting platform 3, then the lifting platform 3 is lowered, the port of the vulcanization heating pipeline 5 is sealed with the sealing cover 29, and the heating vulcanization is started. After completion, the pressure is released, the sealing cover 29 is opened, and the vulcanized long-size rubber part is taken out, and the next batch is ready.

[0045] The inner wall of the flange pipe 19 adopts a straight cylinder type design, the inner side of the sealing cover 29 is a flat surface, after installation, the flat surface of the sealing cover 29 is perpendicular to the inner wall of the flange pipe 19, the internal shape is regular, the long-size rubber part can be arranged more tightly, and the unnecessary empty space is reduced, and the risk of pressure loss is reduced. Smaller empty space means that the internal environment is more stable, temperature and pressure are easier to control, the precision of each parameter of vulcanization can be controlled more accurately, and the consistency of the vulcanization process and product quality are ensured.

[0046] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the technical scheme of the utility model, and are not a limitation on the specific embodiments of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model claim shall be included in the protection scope of the utility model claim.

Claims

1. A length-adjustable vulcanization heating apparatus characterized by comprising: The application relates to a vulcanization heating pipeline (5) and a vulcanization heating pipeline support structure. The vulcanization heating pipeline (5) is composed of a plurality of flange pipes (19) which are pipes provided with flanges at two ends; sealing covers (29) are arranged at the two ends of the vulcanization heating pipeline (5); a pressure and fluid control system is arranged on the vulcanization heating pipeline (5) and comprises at least one pressure regulating device for accurately controlling the air pressure in the vulcanization heating pipeline (5); at least one pressure relief device for quickly releasing the gas in the vulcanization heating pipeline (5) when necessary; and at least one exhaust device for exhausting the condensed water vapor or other unnecessary fluid generated in the vulcanization process. The inner wall of the flange pipe (19) is a straight cylinder structure, and the inner side of the sealing cover (29) is a flat surface. The application further relates to a guide component (16) arranged on the bottom of the vulcanization heating pipeline (5) and arranged axially along the vulcanization heating pipeline (5) and used for guiding the conveying platform (2) carrying the rubber parts to enter. The guide component (16) is composed of two parallel guide rails, and the two guide rails are fixed on the mounting plate (26) arranged on the bottom of the vulcanization heating pipeline (5). The application further relates to a support structure arranged on the bottom of the vulcanization heating pipeline (5) and used for fixing the vulcanization heating pipeline (5); the support structure comprises a position adjusting assembly and a height adjusting assembly (8); the position adjusting assembly is used for adjusting the front-back position of the vulcanization heating pipeline (5); and the height adjusting assembly (8) is used for adjusting the height of the vulcanization heating pipeline (5).

2. A length-adjustable vulcanization heating apparatus according to claim 1, characterized by: The height adjusting assembly (8) comprises a base (6) and a fixed plate (31) fixed on the base (6); each fixed plate (31) is provided with not less than two threaded rods, and each threaded rod is threadedly connected with at least two nuts; and an active plate (32) is arranged on the fixed plate (31) and provided with through holes corresponding to the threaded rods, the through holes are sleeved on the threaded rods and located between the nuts on each threaded rod.

3. A length-adjustable vulcanization heating apparatus according to claim 1, characterized by: The position adjusting assembly comprises a pipeline support roller (18) arranged on the active plate (32) and rollingly matched with the bottom of the vulcanization heating pipeline (5); and a U-shaped pipe clamp (30) arranged at two ends of the active plate (32) and detachably fixed on the active plate (32) by means of nuts and used for fixing the vulcanization heating pipeline (5) on the active plate (32). The vulcanization heating pipeline (5) is inclined downward by 0.3-0.7 degrees from front to back.

4. A length-adjustable vulcanization heating apparatus according to claim 3, characterized by: The application further relates to an environmental parameter monitoring device arranged on the vulcanization heating pipeline (5) and used for monitoring the internal temperature and pressure in real time; the environmental parameter monitoring device comprises a plurality of temperature monitoring devices and pressure monitoring devices, and the temperature monitoring devices are evenly arranged along the length direction of the vulcanization heating pipeline (5).

5. A length-adjustable vulcanization heating apparatus according to claim 1, characterized by: The application further relates to a controller (4) which can control the pressure regulating device according to the signals of the temperature monitoring devices and the pressure monitoring devices, so that the closed vulcanization heating pipeline (5) can maintain constant pressure and temperature. ​ 6. A length-adjustable vulcanization heating apparatus according to claim 5, characterized by: ​ ​ ​ ​ 7. A length-adjustable vulcanization heating apparatus according to claim 5, characterized by: ​ ​ ​ 8. A length-adjustable vulcanization heating apparatus according to claim 1, characterized by: ​ 9. A length-adjustable vulcanization heating apparatus according to any one of claims 1 to 8, characterized in that: ​ ​ 10. A length-adjustable vulcanization heating apparatus according to claim 9, characterized by: ​