EPS Block Molding Machine

EPS Block Molding Machine is a type of industrial equipment which is used to mold expanded polystyrene foam blocks into various shapes and sizes. This machine is made up of several components, including a pre-expander, a block molding machine, a steam chest, a vacuum system, and a control panel.

The pre-expander is responsible for expanding the polystyrene foam beads with steam to a desired density. The block molding machine then compresses the expanded beads into a block shape using a metal mold, which can be customized to fit various designs. The steam chest provides constant steam to the mold during the molding process, ensuring a smooth and even surface. The vacuum system then uses suction to remove excess steam and air from the mold, allowing for a complete expansion of the foam.

The control panel of the EPS Block Molding Machine is used to monitor and control various parameters, such as temperature, pressure, and density of the foam, ensuring consistent quality of the end product. The machine is also equipped with safety features, such as emergency stop buttons and alarms, preventing accidents while operating.

EPS Block Molding Machines are widely used in industries such as construction, packaging, and insulation. They are easy to operate and maintain, and can produce foam blocks with consistent quality and high efficiency. With the increasing demand for environmentally friendly materials, EPS foam blocks have become a popular choice due to their excellent insulation properties and recyclability. 

Equipment Overview:

PU foaming machines have wide application in the market, which have features of economy and convenient operation and maintenance,etc. The machines can be customized according to customers' requirement for various output and mixing ratio.

EPS (also known as foam block, polystyrene foam board, benzene board, polystyrene block) is made from polystyrene beads containing a volatile liquid blowing agent. These beads are pre-foamed through heating in a mold, resulting in white objects with micro-fine closed pores. EPS foam blocks are used in various applications such as packaging for computers, color steel sandwich foam composite panels, exterior wall insulation, floor heating, cold storage, sheds, vegetable boxes, and foam boxes. These blocks are produced using an EPS Foam Block Machine.

Application Cases :

Pillow, chair, seat cushion,wheel, crown molding, wall panel, steering wheel, bumper, integral skin, fast rebound, slow rebound, toys, knee pad, shoulder pad, fitness equipment, thermal insulation material filling, bicycle cushion, car cushion, hard foaming, refrigerator material, medical appliance, sole etc.

How to maintain the Full automatic adjustable eps block molding machine?
First, the polystyrene board equipment must be fully checked before work: to ensure the safety of the ground, to determine the material feed direction, to check whether the fan is running normally, as well as to ensure there are no problems at the two ends of the limit switch.
Second, before production and processing, it is best to dry the material (it can be naturally air-dried or mechanically dried) before cutting. Otherwise, excessive moisture can lead to low efficiency and wire breakage, resulting in wasted energy and affecting product quality.
Third, due to the high current operating system, it is strictly prohibited to allow foam particles and cutting debris to enter the electrical connections, as this can cause unnecessary fires or other accidents.
Fourth, during prolonged operation, it is important to regularly monitor the temperature of the transformer. If the temperature reaches about 60 ℃, it needs to be shut down promptly until the transformer cools down before resuming operation.
Fifth, if any darkening or damage is observed in the AC contactor terminals of the distribution box, they should be promptly replaced. Proper maintenance of the polystyrene board equipment can significantly improve efficiency, reduce failure rates during operation, increase profits for the enterprise, and extend the equipment's lifespan. Therefore, regular maintenance of the polystyrene board equipment is essential and should not be neglected.

What are the precautions for auto eps block molding machine for wall panel?
To operate the EPS block molding machine for wall panels, the operator must be familiar with the machine's basic knowledge, production process, and working principles, and must undergo training before operating the machine.
When using EPS raw materials, the particles should be larger than φ1mm and have a size of 16 mesh or more. Using small particles or a mixture of large and small powdered materials can block the mold vent, affecting product quality and production efficiency.
The EPS beads must be cured before making EPS blocks. The curing time depends on the temperature and the properties of the raw materials, but it should generally be not less than 4 hours.
Before connecting newly installed steam and compressed air pipes to the machine, they must be cleaned to prevent blocking the valves and vent grooves, which can affect the machine's normal operation.
Check the pressure of the compressed air before using the EPS block molding machine; it should not be lower than 0.6Mpa. Insufficient pressure can cause the valve to malfunction, leading to steam entering the machine in large quantities, resulting in product scrapping or machine damage.
Check the steam pressure before using the machine; it must be more than 0.5Mpa before entering the machine, and the continuous pressure after entering should not be lower than 0.3Mpa. Ensure a steam accumulator with a capacity of more than 10m³ is installed on the steam pipeline to maintain product quality.
The machine is equipped with a safety valve device to prevent excessive steam pressure. It must be checked weekly to prevent malfunctions.
After making the blocks, check the surface and internal quality. Correct any operation procedures promptly if quality problems are found to prevent issues during mass production cutting.
When producing low-density EPS blocks (i.e., foaming ratio more than 60 times), note that they are prone to shrinkage and deformation. They must enter a drying room with a temperature of about 75 ℃ for approximately 8 hours.
During the production process of the EPS block molding machine, ensure sufficient cooling after steam heating before demolding to prevent mold expansion and severe damage to the device.

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