SU1417994A1 - Arrangement for compacting moulding sand - Google Patents

Abstract

The invention relates to foundry and can be used to compact large molds. The aim of the invention is to simplify the design and expand the technological capabilities of the device. The device consists of a shaking drive 1, a roller 2, guide rollers 3 mounted on frame 4, attached to channels 5 mounted on a rack 6 on which a trolley 7 is mounted for movement. In front of the cart Roller 2 is mounted for rotation, and wheels 8 are mounted at the rear wall. Cylinder body 9 is pivotally connected to carriage 7, and shaft is mounted to frame 4. A hopper with forming part 10 is located above frame 4. Under hopper 10 mounted belt feeder P, mounted on ra.m. 4. The flask is located and on the turntable drive shaken. 1 1 hp f-ly, 3 ill. F

Description

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The invention relates to a foundry and can be used to manufacture large casting molds on shaking molding machines with a rotary table.

The purpose of the invention is to simplify the design and expand the technological capabilities.

FIG. 1 shows the device, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The proposed device consists of a shaking actuator 1 for sealing the lower layers of the mold, a roller 2, guide rollers 3 mounted on a frame 4 attached to channels 5 mounted on a stand 6 on which a trolley 7 is mounted for movement, in front of which is mounted the roller 2 is rotatably mounted; wheels 8 are mounted at the rear wall of the trolley. The cylinder body 9 is pivotally connected to the trolley 7, and the rod is connected to the frame 4. A hopper with molding sand 10 is located above the last one. 11 mounted on the frame 4. The flask 12 is mounted on the working table of the shaking drive 1. The cart has side guides 13 with a shoulder 14.

The device works as follows.

After the molding sand is compacted in the flask 12 using the device 1, the molding sand is added to it using a belt conveyor 11 and thereafter the compressed air is supplied into the right cavity of the cylinder: Lindra 9. The latter is moved to the right, the carriage 7 is guided by the guide rollers 3 to the right and the roller 2 is on the flask 12. When the carriage 7 moves over a distance x, it will be able to turn together with the roller 2 relative to the axis of the wheels 8. Due to the step 14, under the force of the roller and the vertical component of the cylinder force fo layer The frames are compacted after moving the roller 2 to the distance S b + x, where b is the width of the flask, cylinder 9 is switched to reverse. In the process of reverse, the molding sand is also compacted.

After the return of the roller 2 to the original

the position of the turntable transfers the flask to the receiving table belonging to the shaking drive 1, the turntable returns to its original position, a new snap 12 is placed on it, and the cycle is repeated.

The proposed device allows to manufacture large forms.

Claims (2)

1. An apparatus for compacting a moldable mixture comprising a frame, a feeder, a shaking drive, a worktable and a mechanism for compacting the upper layers of the mold, characterized in that, in order to simplify the design and expand the technological capabilities, the mechanism for compacting the upper layers of the mold consists of a frame with guide rollers on which a trolley is installed, having wheels placed at the rear wall and side guides with a roller fixed on them the front wall of the carriage, and the piston drive, the brush of which is hinged on the frame, with the cylinder - on the front wall of the carriage, while the lateral guide carriages have a step cooperating with the guide rollers. 2. A device according to claim 1, characterized in that the feeder is mounted on a frame and made in the form of a belt conveyor. Fy cvj to