UA152109U - Vibrating machine for forming multi-cavity concrete blocks - Google Patents

Abstract

A vibrating machine for forming multi-cavity concrete blocks includes a mold and a vibration exciter. The mold is made in the form of longitudinal and transverse sides, tied at the top with longitudinal and transverse corners, and has no bottom. A comb is fixed on the transverse corners with the help of support plates, to which the void formers in the form of tetrahedral hollow cut prisms with an angle of inclination of the side faces of 1.0...1.7 degrees are attached. The hollow cut prisms are attached to the comb with a larger base, and ears are rigidly attached to the longitudinal walls of the mold, in which an axis is mounted, which serves as a connecting element with a removable vibrating device made in the form of a bracket with trapezoidal axis hooks, which is connected to a vibrating support consisting of a rack and a base plate on which a vibration exciter is mounted. The base plate is mounted on shock absorbers, and in the lower part of the mold there is a strapping of corners to which sealing rubber elements are attached.

Description

The utility model belongs to the building materials industry and can be used for the production of products from building mixtures.

A known vibrating machine for forming concrete products, which contains a bed with vertical columns, on which a movable frame with vibration exciters of vertical oscillations is mounted with the help of elastic shock absorbers, a removable press mold is installed on the movable frame, which is pressed against the movable frame by a mechanical device, and the columns, connected in the upper part with a traverse, serve as guides for a slider equipped with a punch, and the slider is connected to a hydraulic cylinder fixed on the traverse (Lvovich K.I. Sand concrete and its application in construction. - Publisher: Stroy Beton, 2007. - 320 with.).

The disadvantage of the well-known vibrating machine is low productivity and increased energy consumption, increased metal capacity, complexity of the device, and the impossibility of forming multi-hollow concrete blocks.

Increased metal capacity is associated with the use of a large number of molds. The increased energy consumption and low productivity are caused by the need to use removable molds, which must be installed and fixed on the movable frame of the vibrating platform, disconnected from the movable frame and moved together with the molded product into the steaming chamber with subsequent extraction of the molded product from the mold.

The closest analogue to the proposed useful model is a vibrating machine containing a bed with vertical columns, on which a movable frame with vibration exciters of vertical oscillations is mounted with the help of elastic shock absorbers, on which a removable pallet and a movable press are installed, and the columns connected in the upper part of the traverse, serve as guides for the lower slider, equipped with ejectors of the movable mold in the vertical direction (Patent of the Russian Federation for a utility model 21549, IPC B288 3/04, 2001).

The disadvantage of the closest analogue is the complexity of the design, high energy consumption, relatively low productivity when forming products from hard and ultra-hard cement concrete mixtures.

The basis of a useful model is the task of reducing energy and metal consumption, simplifying the design and increasing the productivity and quality of molded products.

The task is solved by the fact that the vibrating machine for forming multi-hollow concrete blocks contains a form and a vibration exciter of oscillations, according to a useful model, the form is made in the form of longitudinal and transverse sides, bound in the upper part by longitudinal and transverse corners, and has no bottom, with to this, a comb is fixed on the transverse corners with the help of support plates, to which void-formers are attached in the form of four-sided hollow truncated prisms with an angle of inclination of the side faces of 1.0...1.7 degrees, and hollow truncated prisms are attached to the comb with a larger base, and to the longitudinal ones ears are rigidly attached to the walls of the form, in which an axis is mounted, which serves as a connecting element with a removable vibration device, made in the form of a bracket with trapezoidal hooks of the axis, which is connected to a vibrating support, consisting of a rack and a base plate, on which a vibration exciter is mounted , and the support plate is installed on shock absorbers, and in the lower part the form is bound with corners to which sealing rubber elements are attached.

In fig. 1 shows a vibrating machine for forming multi-hollow concrete blocks, general view; in fig. 2 - view A in fig. 1.

The vibrating machine for forming multi-hollow blocks consists of a form without a bottom, made in the form of longitudinal 1 and transverse 2 sides. On the outer part of the form, in its upper part, longitudinal Z and 4 transverse corners are rigidly fixed. On the transverse corners 4 with the help of support plates 5, a comb 6 is fixed, to which void formers 7 are rigidly attached in the form of four-sided hollow truncated prisms with an angle of inclination of the side faces of 1.0...1.7 degrees, and the hollow truncated prisms are attached to the comb with a larger base . Lugs 8 are rigidly attached to the longitudinal walls 1 of the form, in which an axis 9 is mounted, which serves as a connecting element with a removable vibrating device, made in the form of a bracket 10 with trapezoidal hooks of the axis 9, which is connected to a vibrating support consisting of a rack 11 and the base plate 12, on which the vibration exciter 13 is mounted. The base plate 12 is mounted on shock absorbers 14. In the lower part of the mold, a strap is made of corners 15, to which sealing rubber elements 16 are attached.

The operation of the vibrating machine for forming multi-hollow concrete blocks is carried out as follows.

A form without a bottom is installed on a flat surface 17, which is then filled with concrete mixture 18. The removable vibrating device with the help of trapezoidal hooks 10 is connected to the form and the vibration exciter 13 is turned on. Under the action of the vibration exciter 13, the form together with the void formers makes a complex movement, moving in horizontal plane in the longitudinal and transverse directions, and also carries out torsional oscillations around the vertical axis passing through the center of gravity of the vibrating installation.

As a result of such vibration action, the mixture experiences a complex stress-strain effect in the horizontal direction, which leads to the destruction of internal bonds and the transition of the mixture to a thixotropic state.

At the end of the forming process, the vibrating block is removed from the connection with the axis of the mold and moved aside. Then the form is moved vertically upwards, separated from the formed concrete block and rearranged in a new working position. The cycle repeats itself.

The use of the proposed vibrating machine allows you to form multi-hollow concrete blocks from hard and ultra-hard cement concrete mixtures, simplify its construction, reduce energy consumption by 30-40 95, increase productivity and ensure the required quality of molded products from hard and super-hard cement concrete mixtures.

The use of a vibrating machine designed for the formation of multi-cavity concrete blocks from hard and super-hard concrete mixtures ensures an increase in the strength of the formed product and a reduction in cement consumption by 20-25 95.

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Claims (1)

Vibrating machine for forming multi-hollow concrete blocks, containing a form 1 vibration exciter of oscillations, which is distinguished by the fact that the form is made in the form of longitudinal 1 transverse sides, bound in the upper part by longitudinal and transverse corners, 1 has no bottom, while on the transverse corners with the help of support plates, a comb is attached to which void-formers are attached in the form of four-sided hollow truncated prisms with an angle of inclination of the side faces of 1.0...1.7 degrees, and hollow truncated prisms are attached to the comb by a larger base, and rigidly attached to the longitudinal walls of the form lugs, in which an axle is mounted, which serves as a connecting element with a removable vibrating device, made in the form of a bracket with trapezoidal hooks of the axle, which is connected to a vibrating support, consisting of a rack and a base plate, on which a vibration exciter is mounted, and the base plate mounted on shock absorbers, and the lower part of the form is bound from the corners, to which sealing rubber elements are attached.