SU1255441A1 - Device for core extraction out of three-dimensional element - Google Patents

Description

The invention relates to the process equipment of enterprises for the production of precast concrete, in particular, to devices for extracting the core during the molding of bulk elements of the type "cap."

The purpose of the invention is to ensure the extraction of the core from various sizes of volumetric elements.

FIG. 1 shows a device for extracting a core from a volume element, side view; in fig. 2 shows section A-A in FIG. one; in (Fig. 3, a device in plan view (with conventionally removed platform).

The device for extracting the core from the volume element consists of a base 1, a platform 2, moving vertically downwards and upwards with the help of four screw jacks 3, with which the platform is connected to the pinhole. On platform 2, two rails 4 are installed along the entire length. Screw jacks, right and left on each end side of the platform, are mounted on frames 5.

Screw jacks, which are single-stage bevel gears with extendable vertical pinhole, are connected to drive 7 via angle gears 6. Drive 7, gear reducers 6 and jacks 3 are installed in the clamp under the platform. Support for the separation and retention of the volume element are installed on the foundation at the level of the floor in pairs at the end sides of the platform along its sides.

Each of the supports is made in the form of nars 8 and 9 mounted on the base, one of which (stand 8) is fixed vertically and motionless, and the second (stand 9) is hinged to the base with the possibility of changing position from horizontal to vertical. Racks 8 and 9 are cylindrical pins. The supports are installed on foundations.

that their vertically mounted pins are facing the front sides of the platform, and the hinged racks are located between the fixed racks. To stop the platform 2 in the extreme upper and lower positions, there are limit switches 10 located in two opposite corners of the device.

The device works as follows.

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while raising the platform 2 to the top position, roll the core 4 along the rails with the “cap” type block formed on it. Include drive 7

5 and feet 3 lower the platform with the core with the volume block on it.

The support pins 8 through the holes in the corners of the core support tables abut against the walls at the bottom of the volume element, and as the platform 2 moves further down with the core, they hold a volume element that detaches from the core and remains fixed, while the platform with the core keeps going down.

5 Then a volume element of the type "cap" is lifted by a lifting crane (not conventionally shown) and transferred for further processing. The platform is raised to the top position, and the core collides with the platform. The device is ready for further work. For stripping of smaller blocks of smaller dimensions, before starting work, the folding stands 9 are moved to a vertical position, and the further process is the same as for large bulk items. The course of the platform is regulated by limit switches 10. At the end of the stripping of volumetric elements of small dimensions, they lower the pillars 9 into a horizontal position. The device is ready for further work.

Claims (3)

1. DEVICE FOR REMOVING THE CORE FROM THE VOLUME ELEMENT, containing a base, platform, a mechanism for lowering and lifting it, and also supports for tearing and holding the volumetric element, characterized in that, in order to ensure the extraction of the core from various sizes of volumetric elements, supports for detachment and retention of the volume element is made in the form of pairs of racks installed on the base, one of which is fixed on the base motionless, and the second is articulated on a horizontal axis with the possibility of rotation in a vertical plane and to a horizontal position, with pairs of racks located at the ends of the platform along its lateral sides. 2. The device according to π. I, characterized in that the racks pivotally attached to the base are located between the stationary racks facing the end sides of the platform. 3. The device according to π. 1, characterized in that. that the racks are made in the form of cylindrical pins. SU, „, 1255441