Rotary disc type multi-station static pressure molding machine and its molding method

Abstract

The invention discloses a rotating disc type multi-station static pressure molding machine and a molding method thereof. The static pressure molding machine comprises a rotating disc which can rotate horizontally, a sand mold compacting cylinder, a sand box sealing device and a sand feeding device, wherein a plurality of sand containing boxes are evenly distributed on the same circumference of the rotating disc, and the number of the sand containing boxes is an even number; each sand containing box comprises a longitudinal through hole formed in the rotating disc and a sand mold compacting bottom plate which is arranged in the longitudinal through hole and can reciprocate up and down; the top part of the sand mold compacting bottom plate is provided with a sand mold die. Compared with static pressure molding equipment in the prior art, the rotating disc type multi-station static pressure molding machine has the following advantages that the working efficiency can be improved by more than two times, four processes of sand feeding, box loading, compacting and box taking can be realized synchronously within the same time period when the rotating disc rotates for a predetermined angle, and at the molding speed, 240 molds (mold / 15s) can be realized in each hour. Due to the adoption of the static pressure molding machine, the casting industry automation and the continuous production are evolved to a new stage, and the static pressure molding machine not only is suitable for horizontal box molding but also is suitable for horizontal box-free molding.

Description

technical field [0001] The invention relates to a static pressure molding device, in particular to a multi-station static pressure molding machine; and a molding method for the multi-station static pressure molding machine. Background technique [0002] The static pressure molding equipment in the prior art is produced by a single station. In order to increase the production capacity, multiple production equipment can only be invested in the production process. This not only requires an increase in investment in molding equipment and occupies a larger site space, It is also necessary to recruit more operating workers, which greatly increases the labor cost. At the same time, these devices do not help to improve the level of automated production, cannot realize continuous production well, and the production efficiency is extremely low. [0003] In addition, the above-mentioned existing static pressure molding equipment all adopts extrusion compaction from top to bottom (posi...

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Problems solved by technology

[0002] The static pressure molding equipment in the prior art is produced by a single station. In order to increase the production capacity, multiple production equipment can only be invested in the production process. This not only requires an increase in investment in molding equipment and occupies a larger site space, It is also necessary to recruit more operators, which greatly increases the labor cost

At the same time, these devices do not help to improve the level of automated production, cannot achieve continuous production well, and the production efficiency is extremely low

[0003] In addition, the above-mentioned existing static pressure molding equipment all adopt the method of extrusion and compaction from top to bottom (positive extrusion compaction) for molding, and has not been changed in any way.

This type of molding method is not suitable for sand mold manufacturing of some special castings such as sewing machine pedals, etc., and is not very practical.

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