Overflow device of pulp molding machine

Abstract

The invention provides an overflow device of a pulp molding machine. The overflow device comprises a cylinder, an overflow pipeline, a piston, a slushing pipe, a dispersion stabilization unit, a pneumatic control valve and a synchronous electrical control unit (ECU), wherein, one end of the overflow pipeline is communicated with the cylinder; the piston is arranged in the cylinder and divides the cylinder into a first space and a second space which are hermetically connected together, and the first space is communicated with the overflow pipeline; the slushing pipe is arranged at one side of the overflow pipe and is communicated with the cylinder; the dispersion stabilization unit is arranged in the first space of the cylinder and is connected with the piston, and the dispersion stabilization unit is equipped with a motor for providing power for rotation of the dispersion stabilization unit; the pneumatic control valve is communicated with the second space of the cylinder through a pneumatic control pipeline; and the synchronous ECU is used for controlling on / off of the pneumatic control valve in different directions. The overflow device provided by the invention has the advantages that the residual pulp raw material can be uniformly reused, thus saving raw materials and lowering cost.

Description

technical field [0001] The invention relates to an overflow device of a pulp molding machine, in particular to an overflow device which can evenly recycle the remaining pulp raw materials of the pulp molding machine. Background technique [0002] Pulp molded products are formed in a mold forming machine with a filter screen by adding a certain concentration of pulp and an appropriate amount of chemical additives. In the mold forming machine, the fiber pulp is evenly distributed on the surface of the mold by means of vacuum or pressure, thereby forming a wet paper mold base with the proposed geometry and size, and then undergoes further dehydration, demoulding, drying and finishing, and finally Form a paper product with a specific geometric cavity structure and a certain pressure resistance and cushioning capacity. [0003] The currently used pulp molding machine can automatically complete the process of grouting, suction filtration, cold press setting, heat transfer, drying...

AI Technical Summary

Problems solved by technology

The traditional overflow process is to store through pipelines, and then use clean water to realize re-grouting. This not only wastes water, but also has low control accuracy and low overflow storage efficiency, which leads to waste of slurry and affects production efficiency.

[0004] There is also an overflow device for pulp molding machines. This device stores the remaining slurry through the cylinder connected to the overflow pipe. When grouting next time, the remaining slurry stored in the cylinder is discharged by controlling the piston in the cylinder. Re-grouting, due to the deposition of the remaining slurry in the storage device of the cylinder, there will be phenomena such as poor dispersion of the remaining slurry and uneven mixing with the new slurry during re-grouting, which will seriously affect the quality of the produced products

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