A rubber injection vulcanization device and its process

Abstract

The present invention relates to the technical field of vulcanization equipment, specifically a rubber injection vulcanization equipment and its process. The equipment includes an equipment base and a double-station structure thereon. The double-station structure is composed of a central seat and lifting platforms on both sides of the central seat. Both the central seat and the lifting platforms adopt a lifting structure, and when the central seat is in the low position and the lifting platforms are in the high position, they are horizontal. In the double-station structure, a main mold and a sub-mold that are in mutual contact are movably installed; the vulcanization equipment further includes: a water bath heat preservation structure, which can heat and keep warm the upper mold thereof through the lifting platform, and the water bath heat preservation structure is located below the lifting platform; a bottom support and a sinking seat that is installed on the bottom support in a lifting manner, and heat conduction structures are provided on both the bottom support and the sinking seat; a sealing cover structure that can automatically open and close along with the movement of the lifting platform is provided on the water bath heat preservation structure, and a downward pulling structure is provided on the bottom support; the purpose of improving the processing efficiency of the vulcanization equipment and saving energy is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vulcanization equipment, and particularly to a rubber injection vulcanization equipment and its process. Background Art

[0002] Rubber injection vulcanization is a process in which rubber materials are heated and pressurized and injected into a mold, and a vulcanization reaction occurs within the mold to finally form the required rubber products. This process is widely used in fields such as automotive, electronics, and medical, for producing various rubber seals, shock-absorbing parts, insulating parts, etc. Currently, rubber injection vulcanization equipment generally consists of an injection device, a vulcanization mold, a heating system, a cooling system, etc. Among them, the vulcanization mold is a key component for the shaping of rubber products, and the temperature control accuracy thereof directly affects the product quality and production efficiency.

[0003] However, in existing rubber injection vulcanization equipment, a single mold structure is usually adopted, with relatively low processing efficiency, and the mold is mostly heated and insulated directly through the heating elements therein. Traditional molds are mostly made of metal materials. Although they have good thermal conductivity, they also cause heat to easily dissipate to the surrounding environment through the mold surface. This results in the mold having to be put into use again as soon as possible. When the mold cools down and then enters the high-temperature vulcanization stage, the mold needs to be reheated, causing a large amount of energy waste. Moreover, due to reasons such as the complex mold structure and unreasonable layout of heating elements, it is easy to cause uneven temperature distribution in different parts of the mold, affecting the vulcanization uniformity and further affecting the product quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a rubber injection vulcanization equipment and its process to achieve the purpose of improving the processing efficiency of the vulcanization equipment and saving energy, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A rubber injection vulcanization equipment, including an equipment base and a double-station structure thereon. The double-station structure is composed of a central seat and lifting platforms on both sides of the central seat. Both the central seat and the lifting platforms adopt a lifting structure, and when the central seat is at a low position and the lifting platforms are at a high position, they are horizontal. A main mold and a sub-mold that are in mutual contact are movably installed in the double-station structure;

[0006] The vulcanization equipment further includes:

[0007] A water bath heat preservation structure, which can heat and keep warm the upper mold thereof through the lifting platform, and the water bath heat preservation structure is located below the lifting platform;

[0008] A bottom support and a sinking seat that is installed on the bottom support in a lifting manner. The bottom support is installed below the lifting platform, and heat conduction structures are provided on both the bottom support and the sinking seat for heat conduction;

[0009] The water bath heat preservation structure is provided with a sealing cover structure that can automatically open and close as the lifting platform moves, and a pulling-down structure is provided on the bottom tray. When the bottom tray enters the water bath heat preservation structure, the sinking seat is driven to retract into the bottom tray through the pulling-down structure.

[0010] Preferably, the main mold and the auxiliary mold have the same structure, both consisting of a lower mold and an upper mold. After the lower mold and the upper mold are combined, rubber vulcanization and shaping can be carried out.

[0011] Grooves are provided on both sides of the upper mold, and a lifting structure is also provided on the equipment base. The upper mold is lifted by connecting the lifting structure with the grooves.

[0012] Preferably, the water bath heat preservation structure includes a water tank arranged below the lifting platform, and a heating component is arranged in the water tank.

[0013] The sealing cover structure includes shaft seats arranged on both sides of the water tank. The cover is installed through the rotating shafts in the shaft seats, and the water in the water tank is thermally insulated by the cover.

[0014] Preferably, a gear is fixedly installed at the end of the rotating shaft of the shaft seat, and a bracket is vertically installed on the lifting platform. A rack is fixedly installed at the bottom of the bracket. When the lifting platform moves downward, the rack can drive the gear and the rotating shaft to rotate, so that the cover rotates to the open state.

[0015] Preferably, the bottom tray is of a hollow structure, and a lower heat conduction plate is fixedly installed in the bottom tray. An upper heat conduction plate is fixedly connected to the sinking seat, and the two can contact for rapid heat conduction.

[0016] Preferably, a retaining seat is fixedly installed in the bottom tray, and a spring rod is installed on the bottom surface of the sinking seat. The spring rod is connected with the retaining seat.

[0017] The pulling-down structure includes a slide rail installed on the bottom tray, and an inclined plane slide seat is slidably installed on the slide rail. A control rope is fixedly connected to the end of the inclined plane slide seat, and the other end of the control rope is connected to the sinking seat. The control rope is guided through a guide tube in the bottom tray, and a stop rod is installed on the inner wall of the water tank, and the stop rod is below the inclined plane slide seat.

[0018] Preferably, a guide rail is fixedly installed on the center seat, and the main mold and the auxiliary mold can slide under the limitation of the guide rail. A main limiting rod is connected to the main mold, and an auxiliary limiting rod is connected to the auxiliary mold.

[0019] A first push plate and a second push plate are respectively installed on both sides of the guide rail, and the two can respectively contact and push the auxiliary mold and the main mold.

[0020] Preferably, the lifting structure includes a lifting seat installed on the equipment base in a lifting manner, and a telescopic insertion plate is arranged on the lifting seat. The telescopic insertion plate can be connected with the groove.

[0021] Preferably, a top seat is fixedly installed on the top of the equipment base. The injection seat is installed through the top seat. The center seat can move up and down on the equipment base, and the lifting tables are symmetrically arranged on both sides of the center seat.

[0022] A processing technology of a rubber injection and vulcanization equipment, which includes the following steps:

[0023] S1. Mold preparation and positioning. The main mold and the auxiliary mold determine the mold spacing through the main limiting rod and the auxiliary limiting rod, and push the two molds to switch positions between the center seat and the lifting table through the first push plate and the second push plate, so that one of the two molds is on the center seat and the other is on the lifting table.

[0024] S2. Rubber injection and vulcanization. The unvulcanized rubber compound is injected into the mold located on the center seat through the injection seat. The mold rises on the center seat through the electric cylinder and is tightly connected to the injection seat to complete the rubber injection. After the injection is completed, the mold undergoes a vulcanization reaction under high temperature and high pressure to form the rubber compound into the required product.

[0025] S3. Mold switching and discharging. After vulcanization is completed, the mold moves from the center seat to the lifting table, and the unused mold moves to the center seat. The lifting structure is connected to the groove of the upper mold through the telescopic plug board to lift the upper mold and separate the upper mold from the lower mold. Workers take out the vulcanized rubber product from the lower mold.

[0026] S4. Mold water bath heat preservation. The lifting table drives the mold to descend into the water tank for water bath heat preservation. The cover is automatically opened through the gear and rack structure. The lifting table enters the water tank. The mold enters the hot water through the sinking seat and the bottom support structure. The upper heat conducting plate and the lower heat conducting plate are used for rapid heat conduction to achieve uniform heating and heat preservation. At the same time, the pulling-down structure further moves the sinking seat downward through the inclined plane slide seat and the control rope to ensure that the mold is completely immersed in the water bath environment. The water temperature is kept constant through the heating component in the water tank to avoid heat loss of the mold.

[0027] S5. Mold reset and cycle. After heat preservation is completed, the lifting table rises, and the mold is removed from the water tank. The two molds are repositioned on the center seat or the lifting table through the guide rail to prepare for the next round of injection and vulcanization.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The rubber injection vulcanization equipment of the present invention realizes the effects of high - efficiency production, energy conservation and consumption reduction, convenient operation and high - quality output through a double - station structure and water - bath heat preservation. Its structure not only improves production efficiency but also reduces labor costs and maintenance difficulties. Through the coordinated work of the central seat and the lifting table, the injection vulcanization and discharging heat preservation are carried out synchronously, reducing the idle time of the equipment and significantly improving production efficiency. When one mold is undergoing injection vulcanization, the other mold can simultaneously carry out discharging and heat preservation, realizing continuous production, which is suitable for the manufacture of large quantities of rubber products.

[0030] 2. The present invention can save energy and reduce production costs. By using the water - tank and heat - conducting plate structure to insulate the mold, heat loss is reduced, repeated heating is avoided, and energy consumption is significantly reduced. By means of the heating component in the water - tank, the water temperature is kept constant, ensuring that the mold is always at an appropriate temperature during the waiting period for use, further saving energy. Moreover, the water - bath environment and the heat - conducting plate structure can ensure uniform temperature distribution of the mold, avoiding local overheating or over - cooling, improving the vulcanization uniformity and performance stability of rubber products, realizing precise control of the mold temperature, and meeting the production requirements of precision rubber products.

[0031] 3. The automatic switching, discharging and heat preservation of the mold are realized through electric cylinders, gear racks, lifting structures, etc., reducing manual intervention and operation difficulty. The lifting structure is connected to the upper mold through a telescopic plug - board, automatically separating the upper mold and the lower mold, facilitating workers to quickly take out the finished product and improving operation efficiency. Sealing rings are arranged around the sinking seat to prevent hot water from overflowing during the water - bath process, protecting the mold and the equipment and extending their service life. Brief Description of the Drawings

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the main body structure of the equipment of the present invention.

[0034] Figure 3 It is a schematic diagram of the central seat structure of the present invention.

[0035] Figure 4 It is a schematic diagram of the guide - rail structure of the present invention.

[0036] Figure 5 It is a schematic diagram of the main mold and auxiliary mold structures of the present invention.

[0037] Figure 6 It is a schematic diagram of the lifting table and water - tank structures of the present invention.

[0038] Figure 7 It is a schematic diagram of the lifting seat structure of the present invention.

[0039] Figure 8This is a schematic diagram of the cover of the present invention and its driving structure.

[0040] Figure 9 This is a schematic diagram of the internal structure of the water tank of the present invention.

[0041] Figure 10 This is a schematic diagram of the bottom support and the sinking seat structure of the present invention.

[0042] Figure 11 This is a bottom view of the sinking seat structure of the present invention.

[0043] In the figure: 1, equipment base; 2, top seat; 3, injection seat; 4, center seat; 5, guide rail; 6, main mold; 7, sub-mold; 8, main limit rod; 9, sub-limit rod; 10, groove; 11, lifting platform; 12, first push plate; 13, second push plate; 14, lifting seat; 15, telescopic plug board; 16, water tank; 17, shaft seat; 18, cover; 19, gear; 20, bracket; 21, rack; 22, heating component; 23, bottom support; 24, retaining seat; 25, spring rod; 26, sinking seat; 27, lower heat conducting plate; 28, upper heat conducting plate; 29, slide rail; 30, inclined plane sliding seat; 31, control rope; 32, guide pipe; 33, retaining rod; 34, sealing ring. Specific embodiments

[0044] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of non-conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments. It should be known that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0045] Please refer to Figures 1 to 11 , the present invention provides a technical solution: a rubber injection and vulcanization device, which includes an equipment base 1. A top seat 2 is fixedly installed on the top of the equipment base 1. The injection seat 3 is installed through the top seat 2. The injection seat 3 is used for injecting unvulcanized rubber compound so that it enters the mold structure for vulcanization. And the vulcanization device of the present invention adopts a double-station structure, which can effectively improve the processing efficiency of rubber products. The double-station structure is composed of a center seat 4 on the equipment base 1 and lifting platforms 11 on both sides of the center seat 4. The center seat 4 can move up and down on the equipment base 1. The lifting platforms 11 are symmetrically arranged on both sides of the center seat 4, and the lifting platforms 11 are controlled to move up and down through an electric cylinder structure. When the lifting platforms 11 are at a high position, their surfaces are on the same plane as the surface of the center seat 4, and the mold structure can be translated thereon. At the same time, the lifting platforms 11 can be lowered to a low position to drive the mold structure to descend for water bath heat preservation.

[0046] As Figure 4 , Figure 5 shown, the mold structure is composed of a main mold 6 and a sub - mold 7 that abut against each other, and it works in conjunction with a double - station structure. A guide rail 5 is fixedly installed on the central seat 4. The main mold 6 and the sub - mold 7 can slide under the restriction of the guide rail 5. When the main mold 6 is on the central seat 4, the sub - mold 7 moves to the lifting table 11. Conversely, when the main mold 6 is on the lifting table 11, the sub - mold 7 moves to the central seat 4 for use. A main limit rod 8 is connected to the main mold 6, and a sub - limit rod 9 is connected to the sub - mold 7. By the abutment of the main limit rod 8 and the sub - limit rod 9, the distance between the two molds is determined. On both sides of the guide rail 5, a first push plate 12 and a second push plate 13 are installed respectively. They can contact and push the sub - mold 7 and the main mold 6 respectively, so that the two change positions for use. The mold that moves to the central seat 4 is under the injection seat 3 and can be connected to the injection seat 3 as the central seat 4 moves upward for rubber injection and vulcanization. The mold that moves to the lifting table 11 can first discharge materials and then keep warm.

[0047] As Figure 7 shown, the structures of the main mold 6 and the sub - mold 7 are the same, both composed of a lower mold and an upper mold. After the lower mold and the upper mold are combined, they can carry out rubber vulcanization and shaping. Grooves 10 are provided on both sides of the upper mold. A lifting structure is also provided on the equipment base 1. The lifting structure can lift the upper mold by connecting with the grooves 10. The lifting structure includes a lifting seat 14 installed on the equipment base 1 through an electric cylinder structure, and a telescopic plug 15 is provided on the lifting seat 14. After the vulcanized mold moves to the lifting table 11, the telescopic plug 15 can extend into the grooves 10, and then the lifting seat 14 rises, which can drive the upper mold to separate from the lower mold, facilitating the worker to take out the rubber product.

[0048] As Figure 6 , Figure 8 , Figure 9As shown, a water bath heat preservation structure is provided on the equipment base 1 of the present invention to heat and preserve the mold structure in the waiting state of use, avoiding heat loss. The water bath heat preservation structure includes a water tank 16 arranged below the lifting table 11. A heating component 22 is arranged in the water tank 16, which can constantly heat the water in the water tank 16. And shaft seats 17 are arranged on both sides of the water tank 16. The cover 18 is installed through the rotating shaft in the shaft seat 17. When the two covers 18 are combined to cover the water tank 16, the water in the water tank 16 can be heat-preserved to avoid heat loss. And the cover 18 can also be automatically opened when the lifting table 11 drives the mold structure thereon to descend. A gear 19 is fixedly installed at the end of the rotating shaft of the shaft seat 17, and a bracket 20 is vertically installed on the lifting table 11. A rack 21 is fixedly installed at the bottom of the bracket 20. When the lifting table 11 moves downward, the rack 21 can drive the gear 19 and the rotating shaft to rotate, so that the cover 18 rotates to the open state, and the lifting table 11 can enter the water tank 16, so that the mold structure can be heated and insulated along with the lifting table 11.

[0049] As Figure 10 、 Figure 11 shown, further, a hollow bottom support 23 structure is arranged at the bottom of the lifting table 11. A sinking seat 26 with a positioning component is also installed in the bottom support 23 in a lifting manner. When the mold structure moves to the position of the lifting table 11, it will be positioned and fall on the sinking seat 26. When the lifting table 11 falls into the water tank 16, the sinking seat 26 can move downward again, so that the mold structure retracts into the bottom support 23, and the bottom support 23 is in hot water. A lower heat conduction plate 27 is fixedly installed in the bottom support 23, and an upper heat conduction plate 28 is fixedly connected to the sinking seat 26. The two can contact and conduct heat quickly, so that the mold structure can be heated and insulated along with the bottom support 23 and the sinking seat 26.

[0050] As Figure 10 、 Figure 11As shown, a retaining seat 24 is fixedly installed in the bottom support 23, and a spring rod 25 is installed on the bottom surface of the sunken seat 26. The spring rod 25 is connected to the retaining seat 24, so that the sunken seat 26 is installed in the bottom support 23 in a lifting manner. At the same time, the sunken seat 26 of the present invention can automatically move downward after the bottom support 23 enters the water tank 16. A downward pulling structure is provided on the bottom support 23 for the sunken seat 26. The downward pulling structure includes a horizontal slide rail 29 installed on the bottom support 23. A bevel slide seat 30 is slidably installed on the slide rail 29. The bevel of the bevel slide seat 30 is downward, and a control rope 31 is fixedly connected to the end of the bevel slide seat 30. The other end of the control rope 31 is connected to the bottom surface of the sunken seat 26. The control rope 31 can also be guided through a guide tube 32 in the bottom support 23. A retaining rod 33 is installed on the inner wall of the water tank 16. The retaining rod 33 is located below the bevel slide seat 30. When the bottom support 23 enters the water tank 16, the bevel slide seat 30 can be pushed by the retaining rod 33, so as to pull the control rope 31, so that the sunken seat 26 moves downward against the elastic force of the spring and enters the bottom support 23, and further enters the water tank 16, so that the mold structure is heated and insulated in a water bath environment. Sealing rings 34 are arranged around the sunken seat 26, which can prevent water from overflowing from the sunken seat 26 and getting the mold structure wet.

[0051] When the present invention is in use: First, mold preparation and positioning are carried out. The main mold 6 and the auxiliary mold 7 determine the mold spacing through the main limit rod 8 and the auxiliary limit rod 9, and the two molds are pushed to switch positions between the central seat 4 and the lifting table 11 through the first push plate 12 and the second push plate 13, so that one of the two molds is on the central seat 4 and the other is on the lifting table 11. Subsequently, rubber injection and vulcanization are carried out. The unvulcanized rubber compound is injected into the mold located on the central seat 4 through the injection seat 3. The mold rises on the central seat 4 through the electric cylinder and is tightly connected to the injection seat 3 to complete rubber injection. After the injection is completed, the mold undergoes a vulcanization reaction under high temperature and high pressure to form the rubber compound into the required product. After processing, mold switching and discharging are carried out. After vulcanization is completed, the mold moves from the central seat 4 to the lifting table 11, and the unused mold moves to the central seat 4. The lifting structure is connected to the groove 10 of the upper mold through the telescopic insertion plate 15 to lift the upper mold and separate the upper mold from the lower mold. The worker takes out the vulcanized rubber product from the lower mold. The mold after taking out the material is kept warm by water bath. The lifting table 11 drives the mold to descend into the water tank 16 for water bath heat preservation. The cover 18 is automatically opened through the gear 19 and rack 21 structure. The lifting table 11 enters the water tank 16, and the mold enters the hot water through the sinking seat 26 and the bottom support 23 structure. The upper heat conduction plate 28 and the lower heat conduction plate 27 are used for rapid heat conduction to achieve uniform heating and heat preservation. At the same time, the pulling-down structure makes the sinking seat 26 move further downward through the inclined plane sliding seat 30 and the control rope 31 to ensure that the mold is completely immersed in the water bath environment. The water temperature is kept constant by the heating component 22 in the water tank 16 to avoid heat loss of the mold. Finally, mold reset and circulation are carried out. After heat preservation is completed, the lifting table 11 rises, and the mold is removed from the water tank 16. The two molds are repositioned on the central seat 4 or the lifting table 11 through the guide rail 5 to prepare for the next round of injection and vulcanization.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber injection vulcanization device, comprising a device base and a double-station structure thereon, characterized in that: The double-station structure is composed of a central seat and lifting platforms on both sides of the central seat. Both the central seat and the lifting platforms adopt a lifting structure. When the central seat is in the low position and the lifting platforms are in the high position, they are horizontal. In the double-station structure, a main mold and a sub-mold that are in mutual contact are movably installed; The vulcanization equipment further includes: A water bath heat preservation structure, which can heat and keep warm the upper mold thereof through the lifting platform, and the water bath heat preservation structure is located below the lifting platform; A bottom tray and a sinking seat that is liftably installed in the bottom tray. The bottom tray is installed below the lifting platform, and heat conduction structures are provided on both the bottom tray and the sinking seat for heat conduction through the bottom tray and the sinking seat; The water bath heat preservation structure is provided with a sealing cover structure that can automatically open and close along with the movement of the lifting platform, and the bottom tray is provided with a pulling-down structure. When the bottom tray enters the water bath heat preservation structure, the sinking seat is driven to retract into the bottom tray through the pulling-down structure; The bottom tray is of a hollow structure, and a lower heat conduction plate is fixedly installed in the bottom tray. An upper heat conduction plate is fixedly connected to the sinking seat, and the two can be in contact for rapid heat conduction; A blocking seat is fixedly installed in the bottom tray, and a spring rod is installed on the bottom surface of the sinking seat, and the spring rod is connected to the blocking seat; The pulling-down structure includes a slide rail installed on the bottom tray, and an inclined plane slide seat is slidably installed on the slide rail. The end of the inclined plane slide seat is fixedly connected with a control rope, and the other end of the control rope is connected to the sinking seat. The control rope is guided through a guiding tube in the bottom tray, and a blocking rod is installed on the inner wall of the water tank, and the blocking rod is located below the inclined plane slide seat.

2. The rubber injection vulcanization equipment according to claim 1, characterized in that: The structures of the main mold and the sub-mold are the same, and both are composed of a lower mold and an upper mold. After the lower mold and the upper mold are combined, rubber can be vulcanized and shaped; Grooves are provided on both sides of the upper mold, and a lifting structure is further provided on the equipment base, and the upper mold is lifted through the connection between the lifting structure and the grooves; 3. A rubber injection vulcanization device according to claim 2, characterized in that: The water bath heat preservation structure includes a water tank provided below the lifting platform, and a heating component is provided in the water tank; The sealing cover structure includes shaft seats provided on both sides of the water tank, and the cover is installed through a rotating shaft in the shaft seat, and the water in the water tank is kept warm through the cover; 4. A rubber injection vulcanization device according to claim 3, characterized in that: A gear is fixedly installed at the end of the rotating shaft of the shaft seat, and a bracket is vertically installed on the lifting platform, and a rack is fixedly installed at the bottom of the bracket. When the lifting platform moves downward, the rack can drive the gear and the rotating shaft to rotate, so that the cover rotates to the open state.

5. A rubber injection vulcanization device according to claim 4, characterized in that: A guide rail is fixedly installed on the central seat, and the main mold and the sub-mold can slide under the limitation of the guide rail. A main limiting rod is connected to the main mold, and a sub-limiting rod is connected to the sub-mold; A first push plate and a second push plate are respectively installed on both sides of the guide rail, and the two can respectively contact and push the sub-mold and the main mold; 6. A rubber injection vulcanization device according to claim 5, characterized in that: The lifting structure includes a lifting seat that is liftably installed on the equipment base, and a telescopic plug board is provided on the lifting seat, and the telescopic plug board can be connected to the groove; 7. A rubber injection vulcanization device according to claim 6, characterized in that: A top seat is fixedly installed on the top of the equipment base, and an injection seat is installed through the top seat. The central seat can be lifted and lowered on the equipment base, and the lifting platforms are symmetrically arranged on both sides of the central seat; 8. A processing technology of the rubber injection vulcanization equipment as described in claim 7, characterized in that: This process includes the following steps: S1. Mold preparation and positioning: The main mold and the auxiliary mold determine the mold spacing through the main limit rod and the auxiliary limit rod, and the two molds are pushed to switch positions between the central seat and the lifting table by the first push plate and the second push plate, so that one of the two molds is on the central seat and the other is on the lifting table; S2. Rubber injection and vulcanization: The unvulcanized rubber compound is injected into the mold located on the central seat through the injection seat. The mold rises on the central seat through the electric cylinder and is tightly connected to the injection seat to complete rubber injection. After the injection is completed, the mold undergoes a vulcanization reaction under high temperature and high pressure to form the rubber compound into the required product; S3. Mold switching and discharging: After vulcanization is completed, the mold moves from the central seat to the lifting table, and the unused mold moves to the central seat. The lifting structure is connected to the groove of the upper mold through the telescopic plug plate to lift the upper mold and separate the upper mold from the lower mold. Workers take out the vulcanized rubber product from the lower mold; S4. Mold water bath heat preservation: The lifting table drives the mold to descend into the water tank for water bath heat preservation. The cover is automatically opened through the gear and rack structure, the lifting table enters the water tank, and the mold enters the hot water through the sinking seat and the bottom support structure. The upper heat conducting plate and the lower heat conducting plate are used for rapid heat conduction to achieve uniform heating and heat preservation. At the same time, the pulling-down structure makes the sinking seat move further downward through the inclined plane sliding seat and the control rope to ensure that the mold is completely immersed in the water bath environment. The water temperature is kept constant by the heating component in the water tank to avoid heat loss of the mold; S5. Mold reset and cycle: After heat preservation is completed, the lifting table rises, and the mold is removed from the water tank. The two molds are repositioned on the central seat or the lifting table through the guide rail to prepare for the next round of injection and vulcanization.

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