Downward-pushing magnetic material wet forming hydraulic machine and use method thereof

Abstract

The invention discloses a downward-pushing magnetic material wet molding hydraulic machine and a use method thereof and belongs to the magnetic material wet forming field. The downward-pushing magnetic material wet molding hydraulic machine comprises a downward-pushing pressing structure. The downward-pushing magnetic material wet molding hydraulic machine further comprises a mechanical limiting structure, a packing structure, a blank fetching system, a double-oil cylinder balance system and a mould surface cleaning system; the downward-pushing pressing structure comprises an upper mould seat, a pushing rod, a large-bore oil cylinder, a fixing mould frame and a lower mould hydraulic cylinder, wherein the upper mould seat is driven by the large-bore oil cylinder, the pushing rod is located in the fixing mould frame, and the fixing mould frame is connected with the lower mould hydraulic cylinder, the large-bore oil cylinder and the lower mould hydraulic cylinder are both communicated with a hydraulic station; the mechanical limiting structure includes a horizontal mechanical limiting structure and a longitudinal mechanical limiting structure; the horizontal mechanical limiting structure comprises the pushing rod and the fixing mould frame; a fixing mould cavity is arranged in the fixing mould frame; the pushing rod is located in the fixing mould cavity in the fixing mould frame; and the longitudinal mechanical limiting structure includes a servo motor A and a transmission mechanism. With the downward-pushing magnetic material wet molding hydraulic machine and the use method thereof adopted, product formation error is small, and the pollution source of slurry to hydraulic oil can be eliminated.

Description

technical field [0001] The invention belongs to the field of hydraulic presses, and in particular relates to a top-down magnetic material wet forming hydraulic press and a use method thereof. Background technique [0002] With the development of industry, my country has become a big producer of magnetic materials. The production of magnetic materials requires the preparation of aqueous slurry, wet pressing, sintering, grinding, sorting, and packaging. Wet pressing is the most important of all processes. The key process, so the wet press molding press has attracted the attention of manufacturers. The pressing process commonly used in China is the upward pressure floating type, and the state during the slurry pressing process restricts the magnetic properties of the product to a maximum of 9 grades. The upper oil cylinder presses the mold cavity to float downward, and the lower die head is fixed, forcing the volume of the cavity to decrease, so that the water in the permanent ...

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Problems solved by technology

[0006] Aiming at the problems in the prior art that the magnetic level is limited, the loss of equipment components is large, the bias voltage of the finished product is damaged, and the power consumption is wasted, the present invention provides a hydraulic press for wet forming of magnetic materials with a bottom top and its use method, which can improve the magnetic product quality. Level, reduce the loss rate of equipment components, eliminate the problem of bias damage to finished products, and save electricity

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