Inner Tube Rubber Vulcanizing Press Machine

Detailed description

The inner tube rubber vulcanizing press machine is used to vulcanize various rubber products and is a molding equipment for various thermosetting plastics. It is generally driven by a motor, and mold opening and closing are realized through a cam four-bar linkage mechanism. When working, put the pre-inflated and shaped inner tube into the model, and then the machine will input steam into the jacket of the inner tube model for continuous heating according to the different vulcanization strips and the specified time requirements. Automatically (or manually) complete the mold clamping, and then perform operations such as charging internal pressure steam, exhausting steam and opening the mold, and finally take out the vulcanized inner tube.

Features

1. The machine adopts group technology, which saves 30% of floor space, improves power by 22%, saves electricity by 50%, and is fully automated. The machine has different specifications and models to suit different inner tube vulcanization needs.

2. PLC and HMI control can realize manual and automatic control. The automatic control can realize the functions of mold clamping, exhaust, temperature control, vulcanization timing, alarm, mold opening and unloading. The touch screen displays the temperature of each heating zone of the hot plate in real time.

3. The hydraulic cylinder is made of ZG270-500 material, and the plunger is made of dense chilled alloy cast iron, which is finely ground after casting. The sealing form of the hydraulic cylinder is a YX seal ring.

4. The edge of the hot plate adopts hydraulic automatic top iron, and the pad irons on both sides of the hot plate advance and retreat at the same time under the action of four oil cylinders. The two ends of the hot plate are provided with anti-pad iron overlapping devices.

5. Each heating zone of the hot plate is equipped with a set of temperature-adjusting valve groups. Under the control of PLC, the temperature of each heating zone of the hot plate is uniform and consistent.

6. The hydraulic system uses hydraulic stations of well-known brands at home and abroad. Under the control of PLC, it can realize automatic mold clamping, exhaust and mold opening and unloading operations.

7. Mechanical synchronization balance mechanism. There is a synchronous shaft that penetrates the unit under the platform, and both ends of the shaft are equipped with racks and gears to ensure that the platform is raised and lowered horizontally.

8. Mold clamping guide device. There are mold clamping guide devices on both sides of the lower pad. The frame plate and the platform are equipped with guide seats. The guide seats process the inclined surface, and the distance of the inclined surface can be adjusted by the top wire.

9. Inner tube rubber vulcanizing press machine has mold opening assist mechanism. When the mold is opened, the four oil cylinders located under the platform act to force the platform to be pulled down to prevent the sticking pot from opening the mold.

Working Principle

The inner tube rubber vulcanizer operates based on chemical properties of rubber vulcanization reaction. Vulcanization involves cross-linking sulfur elements of rubber with molecular chains through heating and pressure, producing elastic products.

1. Warm-Up Phase

Once the vulcanizer has been switched on, its heating system (either electric or steam heating) in the mold begins to warm up as required for vulcanization process. Mold temperature adjustment begins and must reach set value to ensure efficient vulcanization process. During this stage preloading of pressure system ensures rapid pressurization process of mold.

2. Mold Loading

Unvulcanized rubber inner tubes are placed into a mold either automatically or manually and closed up, then pressure is applied evenly across its cavities using appropriate equipment to apply appropriate pressure for even distribution of rubber material in each cavity of the mold.

3. Vulcanization Reaction Stage

o Vulcanizers facilitate the vulcanization reaction in rubber by heating and maintaining pressure for an appropriate period. Heating system: Provides consistent heating of interior of rubber material in order to avoid local overheating or unvulcanization.

Pressure System: Used to ensure the mold remains securely closed and maintain the shape and density of rubber product. Timing Control: Vulcanization time can be tailored accordingly depending on inner tube materials and specifications.

4. Cooling and Shaping Step

Once vulcanization has been completed, the equipment automatically shuts off heating; its hydraulic system slowly releases pressure; and its cooling system immediately begins working to bring down mold temperature to within safe limits, to avoid product deformity due to overheating.

5. Demold Stage

Once cooling has taken place, the mold is opened up and the inner tube removed either manually or mechanically - now complete, it has basic performance for factory use.

Reflection of Technical Advantages in Application

1. Multi-Specification Adaptability A vulcanizing press can quickly adapt to meet the production needs for inner tubes of various specifications and materials, including those required to meet conversion of light vehicle and heavy truck inner tubes. By quickly changing molds and modifying process parameters, its production capabilities quickly match demand from these inner tube types.

2. Effective mass production

The automated vulcanizing machine provides efficient mass production. Its continuous production capability and increased production efficiency help meet modern factories' high productivity demands.

3. Product Performance Guarantee

High-precision control over the vulcanization process ensures quality consistency among each batch of inner tubes produced, increasing competitiveness on the end market and guaranteeing product performance.

4. Energy Conservation and Environmental Protection

Some vulcanizers employ energy-conserving designs, minimizing energy use and carbon emissions by employing more efficient heating methods and materials and meeting all applicable environmental regulations.

5. Meet Your Customization Needs Vulcanizing machines offer users in specific industries (military industry and engineering machinery) the flexibility of customizing parameters and creating unique molds in order to meet personalized production requirements.