Composite material forming hydraulic press

The equipment structure of the composite forming hydraulic press includes four-column and frame structures, which can be customized according to product requirements. The equipment structure of the four-column hydraulic press has four columns supporting upper and lower beams and platforms. The structure is stable and reliable, and is suitable for small and medium composite materials. The frame hydraulic press adopts a frame structure, with upper and lower beams and columns welded together. It has good rigidity and strong bearing capacity and is suitable for forming of large composite materials. Including the host structure (column, beam, platform and template), hydraulic system (hydraulic cylinder, pressure transmission device, hydraulic control system), control system (electrical control system, safety protection device) and auxiliary system (heating and cooling system, mold replacement system) is usually composed of column, upper beam and lower beam, these components constitute the main frame of the hydraulic press.

The columns are arranged on both sides of the hydraulic press and are installed symmetrically to support and fix the upper and lower beams. The upper platform is arranged on the upper beam, the lower platform is arranged on the lower beam, the upper formwork is fixed on the lower end surface of the press-fit table, and the lower formwork is fixed on the upper end surface of the lower platform. The frame is arranged between the upper template and the lower template to form a filter plate mold cavity or a mold cavity required for product molding. Heating and cooling system According to the needs of composite material molding, the hydraulic press may be equipped with a heating plate and a cooling system for heating or cooling the mold and materials; the hydraulic control system includes an oil tank, an oil pump motor unit, and a hydraulic valve, etc., used to generate And distribute working oil to control various actions of the hydraulic press. The hydraulic control system adopts a cartridge valve integrated system, which is sensitive, reliable and has good sealing performance; safety protection device The hydraulic press is usually equipped with safety protection devices, such as limit switches, emergency stop buttons, etc., to ensure the safety of operators.

The process flow of the composite material forming hydraulic press will vary due to the different materials and products. Prepare the material: the powder, granular or fibrous plastic and other composite materials are mixed, mixed and stirred evenly. Preheating the mold: use heating equipment (such as mold temperature machine, electric heating or oil heating, etc.) to preheat the mold to a certain temperature. Feeding: The mixed material is added to the preheated mold. Mold closing: start the hydraulic press to make the slider go down quickly and close the mold to ensure that the mold is closed tightly. Pressurization: The slider is pressed slowly to apply a certain pressure to the material in the mold, so that the material flows under pressure and fills the entire cavity. Holding pressure: Keep the pressure for a period of time to allow the material to fully solidify in the mold. Pressure relief: after the pressure is maintained, the pressure relief operation is carried out.

Return: Slider fast return, back to the initial position. Demoulding: the top cylinder is pushed out and the cured products are pushed out of the mold. Take out the product: Take out the product manually or using the corresponding device. Subsequent processing (if any): external modification, inspection and other operations are carried out on the products, and then put into storage. In actual operation, the process parameters (such as temperature, pressure, time, etc.) of the composite molding hydraulic press need to be adjusted and optimized according to the specific composite material type, product requirements and equipment performance to ensure the quality and performance of the product. At the same time, hydraulic equipment usually has an electrical control system, which can achieve precise control and adjustment of various actions, and some equipment is also equipped with an in-mold core-pulling control system, an ejection control system, etc., to meet the molding needs of different products.