SU1404358A1 - Arrangement for working smooth surfaces of building articles - Google Patents

Abstract

The invention relates to building materials and can be used when smoothing down concrete products. The aim of the invention is to improve the quality of the surface of the products. This goal is achieved by the fact that the device for smoothing the surface of building products is fitted above the smoothing bars 7 and associated with them elastic elements 6 by carrying bars 5. The ends of the latter are pivotally connected to the ends of the rocker arms 4, and the smoothing bars 7 are made with clamping devices 9 in the form of pneumatic chambers placed between the supporting bars 5 and bars 7. 3 Il.

Description

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The invention relates to the field of building materials and can be used when smoothing down concrete products.

The purpose of the invention is improving the surface quality of products.

FIG. 1 shows the device, axonometrics; in fig. 2 is a view A of FIG. 1j in FIG. 3 is a section BB in FIG. one.

The device consists of a frame 1, when: decisive to the lifting mechanism 2, made in the form of pneumatic cylinders, and installed in the guides 3. On the frame 1, two rocker arms 4 are hinged and symmetrically mounted, the ends of which are parallel to each other hingedly attached carrier strips 5, to which by means of elastic elements 6 are attached bar 7. Inertial vibrators 8 are fixed on each bar. Pneumcameras 9 are installed between each bar and bar. The working surfaces of the bars of each pair have a radius R 2-3 times greater than the width of the bar. The device also has a drive 10, which through the gear 11 and the crank mechanism 12 communicates the bar and plane-parallel movement.

The device works as follows.

To bring the device into working position, the frame 1 by means of pneumatic cylinders 2 is lowered onto the surface of the workpiece, and the pressure of the bars can be adjusted.

each pair (jointly or autonomously) to the surface of the product .. The actuator 10 through a crank mechanism 12 communicates each pair of bars a plane-parallel movement. Vibrators 8 are turned on, indicating vertical oscillations in the bars of each pair. When moving the forms with articles, the smoothing process is carried out, while the smoothing bars make a complex movement consisting of vertical and plane-parallel. The bars work in antiphase. The presence of elastic elements 6 and pneumatic chamber 9 allows the device to respond quickly to changes in the level of the boring equipment during the transition from one product to another and at this moment to remove unnecessary loads.

Claims (1)

Invention Formula A device for smoothing the surface of building products, containing drive smoothing bars, pivotally connected to the frame by means of parallel rocker arms, characterized in that, in order to improve the quality of the surface of the products, it is equipped with support carriers mounted above smoothing bars and associated elastic elements. straps, the ends of which are pivotally connected to the ends of the rocker arms, and the smoothing bars are made with clamping devices in the form of pneumatic chambers placed between the bearing strips and bars mi. Bu $ A Phie, 2 Ftse.Z