DE1508750C - Compressed air operated molding machine for foundry purposes - Google Patents

Description

part serving vibrating device are arranged, io.

characterized in that the molding machine is formed so the dosing

siervorrichtung (28) on one at the front part of the direction driven by the pressing device. It

Pressing device (16) arranged sliding surface thus eliminates the need for a special drive for the

(19, 20) is supported and that the sliding surface so metering device, and there is a considerable

is shaped so that the metering device (28) 15 saves construction space. It remains that too

when moving out the pressing device (16) into the entire upper part of the molding machine

the filling position lowers and when entering Bende space with the exception of the process of the

raises again. Pressing device required space for installation

2. Molding machine according to claim 1, characterized by other devices or structural elements characterized in that the sliding surface is free by two 20.

curved rail pieces (19, 20) is formed. In a practical embodiment of the invention

3. Molding machine according to claim 1, characterized in that the sliding surface is characterized by two curved skewers, that the metering device (28) is formed by nenstück; so they extend over the by means of a parallelogram guide (23, 24) when moving into the working position, the front side of the leads is. · 25 pressing device. The main part of the weight

4. Molding machine according to claim 1, characterized in that the metering device is thus pre-marked by the press, that the metering device (28) is carried direction or its guide.

a filling frame (39) on its underside to guide the movement of the dosing device

shows. a parallelogram guide is particularly suitable.

With this it is possible to close the metering device in the vertical direction around a horizontal axis

- ^L —— pivot while ensuring it at the same time

is that the metering device itself always remains in a vertical position in which the contained in it tene molding sand cannot leak.

The invention relates to a compressed air-operated device that also allows the metering device

Molding machine for foundry purposes, in which a predetermined sequence of movements, corresponding to an equiaxed one above the other, a vertically movable embodiment of the invention on the underside of the metering device for the molding sand allocation, to firmly attach the same filling frame,
retractable pressing device, a molding box and _{40 In the} following, an exemplary embodiment of the ereine, also for lifting and separating the mo-find, is described in more detail with the aid of a drawing, which shows the vibrating device serving the molded part
are ordered. F i g. 1 the front view of a molding machine,

In known molding machines of this type, FIG. 2 the rear view of the same,

Pressing device in the lateral direction between its ₄₅ F i g. 3 shows a side view of the molding machine movable in the working position and in a rest position. When the pressing device is moved out,
if the pressing device is in the latter, F i g. 4 is a side view of the molding machine at FIG

the vertically movable Dosiervorrich- working position located pressing device,
device for filling in the molding sand over the molding F i g. 5 is a plan view of the molding machine;

box to be brought. Two carriers 3 and 4 are used as a drive for the metering ₅₀ I _{n of} a construction pit 1, which is covered with grate plates 2 in one of the known designs. To approximately form a raisable and lowerable cylinder currency this rests the base frame 5 of the molding machine end, in another embodiment the dosage _m j _t the coupled on this property Formmaschinenstänvorrichtung with a Gegenpreßplatte, the 6. The rear part of the molding machine stand 6 which place after deployment for the _{55 st} Dosiervor- j by a support 7 (F i g. 2) is formed, the upper direction is available. Part of two forked arms 8 and

The first-mentioned embodiment of the molding 9 consists.

Machine requires a relatively cumbersome i _{m base} frame 5 is a raise and lowerable

and time consuming up and down movement of the jogger 10 of a known type of metering device. 60 arranged, which carries a model 11.

In the second embodiment an ER- _{The o} b e _he part is formed of the molding machine stand 6 has

höhter space requirements, which are located in particular provided with auto- _zwe i lateral cheeks 12 and 13 whose inner Pragmatic plants characterized disturbing _{se te} j _m i _t n R _{o en un} 14 d IS. On this makes that in the molding line on the machine side j _{st eme} pressing device 16 horizontally to the rear no other devices are installed more _{6s can be moved} out. The latter is supported in their work skills. _% Position, in which the pressing process takes place, on the side

Proceeding from this, the invention had the task of 'ten walls 17 and 18 of the cheeks 12 and 13 from. the based on the movement of the pressing device and pressing device 16 has on its in the process in

3 4

the working position front side two rails at the same time a new empty box in the shaped mast pieces 19 and 20, which is moved in from the highest point of the machine. The on the molding table pressing device 16 from the front in a model 11 located is raised and moved to extend arches downwards. A parallelogram linkage 23, 24 is supported on two consoles 21 in the direction of the empty molding box 29, up to and including 22 - the latter is supported by the model plate 11. After that, on its two sides, the press parallel consists of two individual rods, each of which is placed in parallel with a filling frame 30, from which the device 16 moves into its rear end position,
teren each provided with a guide roller 25 which are already newly filled dosing device. The latter run on the rail sections 19 and 28 are thereby ab-20 in their lower end position. ■ io lowers by opening your bottom flaps

At the joints 26 and 27 there is a metering device contained in the molding sand in the molding boxes

device 28 is suspended, which is given off via the parallelo-29.

gram linkage 23, 24 indirectly on the pressing device- This is followed by the shaking by means of the shaking 16 supported. When the pressing device 10 is moved, at the same time the pressing projection 16 sinks into the rear end position, the metering device 16, lifting off the metering device 28, descends so far that it is exactly above a molding box 29 in its front end position is in the filling position. At the under-drive. Then a press plate 34 leads the press side of the metering device 28 is a FüUrahmen 39 device 16 for the final compression of the firmly attached. This goes down deep enough to give molding sand a short working stroke.
A perfect filling of the molding box 29 is to be achieved. The press plate 34 is then in its upper possible position. Another FüUrahmen 30 is moved back to the position and the filling frame 30 with molding box 29 is placed. With the help of two small pressure cylinders 35 and 36

In detail, the movement sequences are lifted from the finished molded part. Then will

while the molding machine is working, the vibrating device 10 is lowered, whereby the

dimensions: 35 molded part is deposited on the transport device 33 and

The model 11 is separated from the molded part by means of a not belonging to the molding machine. Subsequent

Transport device 33 is a finished molded part ßend the molding box 29 can be finished with the

transported out of the molding machine while transporting molded part out of the molding machine.

For this purpose 2 sheets of drawings

Claims (1)

1 2 of the dosing device required construction claims: parts to be designed as simple and space-saving as possible. This object is achieved according to the invention 1. Compressed air-operated molding machine for casting solves that the metering device on a front stimulus, in which coaxially one above the other 5 abeine part of the pressing device arranged sliding surface vertically movable dosing device for which is supported and that the sliding surface is shaped so Molding sand allocation, a retractable press before the metering device is moved out direction, a molding box and one also to the pressing device lowers in the filling position and lift and lift to separate the model from the mold - when moving out.