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Working principle and maintenance of hot press machine

Date: 2022-06-14   Views: 1739


The working principle of a hot press machine is to perform positive pressure on the basis of negative pressure and use specialized glue for processing. The hot press machine also has the characteristics of high pressure, low temperature, and short film pressing time, which solves the problem of deformation of workpieces processed by negative pressure equipment, greatly reduces the degree of deformation of workpieces, and ensures the quality and function of the product. The existing hot press machines on the market can actively complete the processing processes of entering, lifting, heating, vacuum forming, demolding, and lowering the stage. Mainly driven by oil pressure and compressed air, there should be sufficient air pressure and volume. The structure is composed of steel plates, and the overall structure is reasonable. Two workbenches can be used in a loop or individually. The hot press machine can be said to be one of the primary machinery in woodworking machinery. The primary function of a hot press machine in wood product processing is to heat press and bond furniture panels, building partitions, wooden doors, fire doors, and surface material veneers. 


The main machine of the press can be divided into three parts: heating system (supplying heat source), hydraulic system (supplying pressure and controlling press action), and press body (frame, control part). Generally speaking, hot press machines are primarily evaluated and selected based on their functionality, reliability, service, and price. This article mainly introduces the function and reliability of hot press machines. The production problems of the hot press machine itself are not many, but a large part comes from the hydraulic system, such as oil leakage and inability to maintain pressure. Many knowledge and requirements about hydraulic systems cannot be fully described here, but they must be taken seriously when selecting. The control system of the hot press mainly controls the operation of the heating system and hydraulic system, and its sensitivity and accuracy directly affect the accuracy of the press operation. Due to the chaotic composition of the control part, it is generally a problematic area. For multifunctional presses, such as vacuum coated veneer presses, many domestic press manufacturers directly import foreign control systems and try to reduce the use of low reliability control components such as solenoid valves.


Generally speaking, the hot press machines used in the furniture industry can consider the functionality and reliability of the operation from the above aspects. During production, there will be many veneer process issues that need to be analyzed based on specific circumstances. Properly clean the hot press machine for blockboard to extend the service life of the hot press machine. Therefore, it is necessary to regularly clean the hot press machine. Before cleaning the hot press for fine woodworking, the operator should make corresponding cleaning preparations and turn off the power. Hot pressing scale requires cleaning, which can effectively extend its service life, check whether the switch is connected properly, and whether there is oil leakage. And before starting the operation every day, it is also necessary to check for any abnormal situations.


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