Plastic profile all-steel type cooling water tank

Abstract

The invention discloses a plastic profile all-steel type cooling water tank which comprises a tank body, a cover plate, inserting plates and water cooling shaping blocks. The inserting plates are vertically arranged in the tank body. Each water cooling shaping block is connected into the corresponding inserting plate in an inserted manner. The lengths of inserting grooves in the two sides of each inserting plate are different. An S-shaped water path is formed by the inserting plates. Equal-length stop blocks are arranged in the inserting grooves of each inserting plate. The stop blocks abut against the edges of the water cooling shaping blocks in the inserting grooves. Shaping holes in the water cooling shaping blocks are in one-to-one correspondence. According to the plastic profile all-steel type cooling water tank, heat expansion and cold contraction caused by the air temperature influence is avoided, and the sealing performance is high; the inner water path is designed to be the S circulation water flow direction, and therefore water flowability is increased; it is guaranteed that a plastic profile can be fast cooled and shaped, and the forming quality of the profile is improved; and meanwhile, the all-steel water tank is integrated, the sealing performance is high, a manufacturing process is simplified, water tank assembly errors are small, and the sealing performance is good. Resources are saved, cost is reduced, and therefore production is improved.

Description

technical field [0001] The invention relates to an all-steel cooling water tank of plastic profile. Background technique [0002] A better method for cooling and shaping continuous extruded plastic profiles is the wet vacuum cooling and shaping method. Usually, the plastic extruded profiles are cooled through a continuous cooling chamber with a cooling liquid such as water as a coolant. Under the action of high-pressure suction, the flow from the head of the water tank to the tail along the moving direction of the profile will inevitably require a high degree of vacuum, so the water tank itself is required to have a high sealing performance. However, in the past, the size of the PMMA water tank is affected by the temperature, and the sealing performance is weak. After assembly, there will be gap leakage during production, which will lead to the instability of the vacuum of the water tank, which will affect the circulation of cooling water, causing the cooling water level in ...

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Problems solved by technology

However, in the past, the size of the PMMA water tank is affected by the temperature, and the sealing performance is weak. After assembly, there will be gap leakage during production, which will lead to the instability of the vacuum of the water tank, which will affect the circulation of cooling water, causing the cooling water level in the water tank to change from time to time. , it may even lead to the situation that the cooling water at the inlet end of the water tank cannot completely overflow the plastic profile, resulting in irregular water ripples on the surface of the profile, and the profile will bend in waves due to local uneven cooling. In addition, the lack of vacuum in the tank will cause the profile Unable to reach the specified size and other problems

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