Cam device for removing and tilting the front plate in a vertical mold casting machine
AssigneeLoramendi, S.A.
InventorAugustin Arana Erana
Life of this patent
Estimating the term…
Abstract
The object of the device is to provide a novel cam device applicable to sand molding machines in which the cam (1) has its active surface (2) facing downwards to prevent sand or dirt from being deposited between said cam (1) and the its supporting follower (10), which the machine is provided with to cause the swivelling of the said cam. For this purpose the cam (1) is hinged at a point (3) to a frame (4) which may move longitudinally, while on another point (5) it is hinged to a connecting rod (6) which is in turn hinged on its opposite end at the point (8) to the front swinging plate (7) of the sand mote molding machine, with said front plate (7) hinged at the point (9) on its rearmost edge to the frame (4).
Claims2
Cam device for extraction and swinging of the front plate in a vertical sand moulding machine, applicable to machines having a moulding chamber in which sand is blown to obtain the mote, which chamber is closed on one end by a swinging front plate which allows to extract the mote, while on the other end it is closed by a rear plate which also acts as a rammer to extract the mote, with said rear plate driven by a cylinder, such that the swivelling front plate is related to a cam which when driven results in the swinging of the front plate;
- characterised in that the cam has its active surface facing downwards, so that it acts above a supporting follower provided on the side of the machine, with the said cam hinged on one of its ends to a longitudinally displaceable frame, while on another point distant from this the cam is also hinged to a connecting rod which on its opposite end is in turn hinged to the swinging front plate, which plate is also hinged on its rear end to the displaceable frame;
- thus, the movement of the frame causes the displacement and extraction of the front plate until the cam touches the follower, at which time the movement of the frame causes the swivelling of the cam and the ensuing push through the connecting rod on the swinging central plate, until this plate reaches an upper horizontal position which allows to extract the mote.
Dependencies are inferred from the claim text.