Automatic pressing forming device and method of low-pressure casting sprue filter net

Abstract

The invention provides an automatic pressing forming device of a low-pressure casting sprue filter net. The device comprises a base, a bottom plate and a first mounting seat and further comprises a primary forming structure, a secondary forming structure and a PLC control system. The primary forming structure comprises a first air cylinder, an upper forming die and a lower forming die. An ejectorrod is arranged in the lower forming die, and the lower end of the ejector rod is fixedly connected with a second air cylinder. Positioning tools are evenly distributed outside the lower forming die,and the filter net can be subjected to primary forming through the primary forming structure. The secondary forming structure comprises a second mounting seat, a third air cylinder, an ejector rod connecting plate, multiple ejector rods, multiple ejector rod guide seats and a hinge seat. Each ejector rod guide seat is provided with a connecting block, and the ejector rods penetrate into the ejector rod guide seats and the connecting blocks and then are fastened through nuts. Forming pressing blocks are hinged to the connecting blocks, and the forming pressing blocks rotate relative to the connecting blocks. The hinge seat is fixed to the lower forming die, a sliding groove penetrates through the hinge seat, the forming pressing blocks are connected with the hinge seat and slide in the sliding groove up and down, and the filter net is subjected to secondary forming through the secondary forming structure. The invention further provides an automatic pressing forming method of the low-pressure casting sprue filter net.

Description

technical field [0001] The invention relates to the technical field of filter net press molding, in particular to an automatic press molding device and a molding method for a low-pressure casting gate filter net. Background technique [0002] The current motorcycle cylinder head adopts a low-pressure casting process. During casting, the aluminum liquid enters the mold from bottom to top to fill the mold. Each casting is installed with a gate filter to concentrate the impurities in the aluminum liquid inside the filter. Only in this way can the purity of the molten aluminum of the casting be guaranteed. [0003] The existing filter screen used for the gate is a square piece of stainless steel wire (iron wire) with a side length of 80 mm. First, put it into the lower mold of a mold, manually press the lever, and the upper mold moves down to press the filter mesh into the lower mold. In the molding die, the steel wire mesh is deformed into the shape of a net bag with four corn...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides an automatic press forming device and a forming method of a low-pressure casting gate filter net, through the automatic forming device and the forming method, the primary press forming and the secondary press forming of the filter net are realized, and the finished product is automatically formed. Enter the container for use, completely overcome the artificially caused irregular opening of the filter and the irregularity of the net bag, and the consistency is good

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