GB1322457A - Apparatus for removing parts cast in sand moulds - Google Patents

Abstract

1322457 Extracting castings from sand moulds PONT-A-MOUSSON SA 23 Nov 1971 [3 Dec 1970] 54309/71 Heading B3F Apparatus for removing castings from a line of sand moulds 3 comprises an overhead conveyer having suspended hooks 12 which can be raised and lowered, means 25 for guiding a downwardly moving hook to a position adjacent a mould, and means 29 for displacing the guide means 25 so as to cause the hook to penetrate the mould and engage the casting 2. In the embodiment shown in Fig. 2, the guide 25 is pivoted at 28 to a fixed support 27 and may be moved by a jack 29. In operation, a rail segment 15 is lowered so that a pin 24 on the hook 12 engages in grooves 26 on the guide 25. After the hook has reached the position shown in Fig. 2, the jack 29 is activated to bring the guide 25 to a vertical position, thus causing the hook to penetrate the mould and engage the sprue and runner of the casting. The rail segment 15 and the hook 12 are now raised, this withdrawing the casting from the mould. After the pin 24 has emerged from the top of the guide 25, the latter is moved back to its original position ready for the reset cycle. The embodiment shown in Fig. 9 is used when two lines of moulds are located adjacent one another. After the casting has been removed from a mould in line 1 by the apparatus shown in Fig. 2, a spade 32 is inserted between the two lines and then moved to the left by a jack 34 so as to provide a space 38 into which the hook 12 may be lowered. After the pin 24 has emerged from the lower end of the guide 25, the hook is guided by contact with the spade 32 and mould 3a and is caused to penetrate the mould by moving the spade 32 to the right from the position shown in Fig. 9. During the upward movement of the hook the pin 24 bears against a track on the outside of the guide 25, the guide being freely pivotable about a fixed support and having its pivotable movement limited by abutments (36) and (37).