SU457601A1 - Vibrating table - Google Patents

Description

The invention relates to construction production and can be used in precast concrete plants to compact concrete masses in the manufacture of building parts.

The known vibroplatform contains a movable frame with an exciter mounted on the housing on the air bed and a device for fastening the mold.

However, the known vibroplatform does not have devices that attach to the vibroplatform a shape with a concrete mass. This reduces the amplitude of vibrations of the concrete mass, increases the molding time of the product and creates a considerable amount of heat, which worsens the working conditions of the staff and leads to premature wear of the equipment.

The purpose of the invention is to reduce the time for attaching the mold to the moving frame of the vibrating plate.

For this purpose, the device for fastening the form is equipped with pneumatic clamps placed in the chamber of the air cushion;

The drawing shows the proposed vibroplatform, the cross section. The dash-dotted line on the left clamp shows the position of the clamp in an inoperative state.

The vibrating platform includes a housing 1, a movable frame with exciters 2, elastic

A loop 3, hermetically connected along the entire perimeter with the case and frame, and a device for fastening the forms, consisting of a rigid flap 4, an elastic shell 5 and a flexible link 6. The shell 5 is sealed to the flap 4 and the bottom 7 of the frame . The elastic case 8 serves to seal the pressure chamber at the site of the action of the flexible connection 6. The flexible connection 6 is pivotally connected to the flap 4 and is transferred through the block 9.

The device works in the following way. Air is supplied to the housing 1 under pressure to lift the movable frame 2 into suspension. The air pressure is determined by calculation and usually

is in the range of 0.01-0.08 atm. On frame 2, form 10 is installed with concrete. Coupling 6 loops are thrown onto the hooks 11 of the form 10. We receive compressed air at a pressure of 5-7 atm. Shutter 4,

revolving around the connector 12 towards the bottom of the case, pulls the link 6, thereby pressing the form 10 to the movable frame. After that, the vibration system 13 is put into operation and the frame 2 is created with vertical-directional oscillations.

After the concrete mass is compacted, the internal chamber 14 of the pressing device communicates with the atmosphere. The flap 4. Begins to press the overpressure of the air cushion. The flap closes, releasing tension from the bond 6. The Fort | Ma is released from the grips and removed from the vibratory plate. The duty cycle ends there.

Subject invention

Vib, roploch: an ada containing a movable frame with a vibration exciter mounted on the body on the air bed and a device for fastening the form, characterized in that, in order to reduce the time of attaching the form to the movable frame, the device

To fasten the mold, pneumatic crimpers are placed in the air blower chamber, the hermetic cavities of which are formed by elastic shells and rigid flaps connected by means of hinges to the bottom of the movable frame and connected by flexible links to the shape hooks.

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