RU2385222C2 - Reinforced concrete slab metal form - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to production of construction materials. Proposed metal form represents a closed chamber for filling in concrete mix formed by bottom and sides furnished with groove-formers, detachable chamfer-formers and hinged swinging devices. It comprises stops arranged on its every side and rigidly coupled with bottom. They represent strips with side that features inclination of 15±0.5 mm towards concrete filling chamber. Every detachable chamfer-former features inclination of 15±0.5 mm on the stop side, while, on chamber side, its inclination makes 5±0.5 mm towards the side opposite of aforesaid inclination. Also, every detachable chamfer-former is furnished with limiters rigidly coupled therewith and representing ledges inclined towards concrete filling chamber for 5±0.5 mm. axle of hinge in every swinging device is shifted below bottom surface through 100 to 110 mm and sits on the line passing through outer angular point of groove-former and spaced apart from groove-former lower surface for the angle of 6 to 15 degrees.

EFFECT: higher quality, lower costs.

1 dwg

Description

The invention relates to construction, and in particular to technological equipment for the manufacture of floor slabs of bezelless frame building.

Known metal mold for the manufacture of reinforced concrete slabs, made in the form of a closed cavity for pouring concrete mix formed by a pallet and sides installed on each side of the metal mold and equipped with grooving, chamfering and hinged devices (see patent RU No. 2147986, publ. 27.04.2000) .

Its disadvantage is the complexity of the operation of extracting the finished plate from the mold and frequent chipping of chamfers on the plate.

The objective of the proposed utility model is to create the possibility of manufacturing high quality plates, reducing the complexity of manufacturing plates and eliminating plate defects.

To solve the technical problem, the metal mold for the manufacture of reinforced concrete slabs is made in the form of a closed cavity for pouring concrete mix formed by a pallet and sides installed on each side of the metal mold and equipped with grooving, chamfering and hinged folding devices, while the chamfering is made removable, and the metalform contains each side stops rigidly connected to the pallet and made in the form of strips with a side having a slope of 15 ± 0.5 mm in the direction of the cavity for concrete pouring, moreover, removable chamfering agents are installed between the stops and the cavity for pouring concrete mixture, each removable chamfering machine on the stop side is made with a slope of 15 ± 0.5 mm, and from the cavity side with a slope of 5 ± 0.5 mm opposite to the first slope side, with each removable chamfer equipped with limiters, rigidly connected with it and made in the form of ledges with a side slope directed to the cavity for pouring concrete mixture, 5 ± 0.5 mm and installed with the possibility of interaction with b with the mouth in the working position of the tilt device and fixation from the offset of the removable chamfer, while the hinge axis of each tilt device is shifted below the pallet mirror by 100 ÷ 110 mm and is located on the line passing through the outer corner point of the mortiser and spaced from the bottom plane of the mortiser by 6 ÷ 15 degrees.

A distinctive feature of the proposed technical solution from the known one is that the chamfers are removable, and the metal mold contains on each side stops fixed rigidly to the pallet and made in the form of strips with a side having a slope of 15 ± 0.5 mm in the direction to the concrete pouring cavity moreover, removable chamfering devices are installed between the stops and the cavity for pouring concrete mixture, each removable chamfering agent on the stop side is made with a slope of 15 ± 0.5 mm, and on the side of the cavity with a slope of 5 ± 0.5 mm in the side which is opposite the first slope, with each removable chamfer provided with limiters, rigidly connected with it and made in the form of ledges with a side slope directed to the cavity for pouring concrete mix, 5 ± 0.5 mm and installed with the possibility of their interaction with the side in operating position of the hinged device and fixation from the offset of the removable chamfer, while the hinge axis of each hinged device is shifted below the pallet mirror by 100 ÷ 110 mm and is located on the line passing through the outer corner th point pazoobrazovatelya and spaced apart from the lower plane by an angle pazoobrazovatelya 6 ÷ 15 degrees.

The invention is illustrated in the drawing, which shows a fragment of a metal mold in section.

The metal mold for the manufacture of reinforced concrete slabs is made in the form of a closed cavity 1 for pouring concrete mix formed by a pallet 2 and sides 3, mounted on each side of the metal mold and equipped with grooving agents 4, chamfering devices 5 and hinged folding devices 6. Chamfering machines 5 are removable, and the metalform contains each side stops 7, rigidly connected with the pallet 2 and made in the form of strips with side 8 having a slope β = 15 ± 0.5 mm in the direction of the cavity 1 for pouring concrete. Removable chamfers 5 are installed between the stops 7 and the cavity 1 for pouring concrete mixture. Each removable chamfer 5 from the stop 7 is made with a slope of σ = 15 ± 0.5 mm, and from the side of the cavity 1 with a slope of λ = 5 ± 0.5 mm to the opposite side with respect to the first slope. Each removable chamfer 5 is equipped with limiters, rigidly connected with it and made in the form of steps 9 with a slope of side 10 directed to the cavity 1 for pouring concrete mixture, Ω = 5 ± 0.5 mm and installed with the possibility of interaction with board 3 in the working the position of the hinged device and fixation from the offset of the removable chamfer 5, while the axis 11 of the hinge of each hinged device 6 is shifted below the mirror 12 of the pallet 2 by a value of γ equal to 100 ÷ 110 mm, and is located on the line 13 passing through the outer corner point 14 groove of the carrier and the grooving agent 4 spaced from the lower plane 15 by an angle α equal to 6–15 degrees.

The operation of the device is as follows. The chamfer 5 with stoppers in the form of steps 9 is mounted on the pallet 2 with a side with a slope of 15 ± 0.5 mm to the stop side 7 with a slope of 15 ± 0.5 mm. The bead 3 with the groove 4 using the hinged device 6 is installed in the working position. In this case, the board 3 interacts with the side 10 of the ledge 9, presses the chamfer 5 against the stop 7, excluding its movement inside the cavity 1 for pouring concrete mortar. After pouring and hardening of concrete, the sides 3 are moved with the grooves 4 with the help of a hinged device 6 relative to the hinge 11. When the concrete slab is separated from the pallet 2, the chamfer 5 freely move away from the stops 7, are displaced together with the concrete slab and are easily separated from the concrete slab without damaging the surface concrete slab.

Operational tests of the proposed metal mold device at the plant indicated the reliability of the device and ensuring the high quality of the manufactured plates, to increase labor productivity and ease of use.

Claims (1)

Metal mold for the manufacture of reinforced concrete slabs, made in the form of a closed cavity for pouring concrete mix formed by a pallet and sides installed on each side of the metal mold and equipped with grooving, chamfering and hinged folding devices, characterized in that the chamfering is removable, and the metalform contains on each side stops rigidly connected to the pallet and made in the form of strips with a side having a slope of β = (15 ± 0.5) mm in the direction of the cavity for pouring concrete mixture, We have removable chamfering devices installed between the stops and the cavity for pouring concrete mixture, each removable chamfering machine on the stop side is made with a slope of σ = (15 ± 0.5) mm, and on the side of the cavity with a slope of λ = (5 ± 0.5) mm in the direction opposite to the first slope, with each removable chamfer provided with limiters rigidly connected with it and made in the form of ledges, with a slope of the side directed to the cavity for pouring concrete mix Ω = (5 ± 0.5) mm, and installed with the possibility of their interaction with the board in the position of the hinged device and the fixation from the offset of the removable chamfer, while the hinge axis of each hinged device is shifted below the pallet mirror by a value of γ = 100 ÷ 110 mm and is located on a line passing through the outer corner point of the groove and spaced from the lower plane of the groove by angle α = 6 ÷ 15 °.