JPH01214405A - Cleaning method and device for concrete frame upper surface - Google Patents

Abstract

PURPOSE:To crush and remove adhered concrete and fine grain substances by placing a cleaning jig on a concrete frame of the upper surface of the fine grain substances after concrete being cured and sliding said cleaning jig while impact is given thereon. CONSTITUTION:A cleaning device B moves on a frame upper surface 31 together with the start of a driving motor. At that time, as a vibrator 19 mounted on a cleaning frame 20 hangs down from a lower section frame 9 by means of a spring 25 is actuated, vibration is transmitted to a cleaning jig 21 being in contact with concrete 40 adhered to the frame upper surface 31, and the cleaning jig 21 retained to be able to come in and out by means of a slot 22, a bolt 23 and a flexible material 24 are moved up and down to crush the adhered concrete at the end of the jig. Residue on the crushed frame is swept out with rotating burst 26 cleaning the upper surface and sucked into a dust collecting box as it is.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method and apparatus for cleaning the upper surface of a concrete form after curing and hardening.

<Prior Art> At concrete mass production factories, concrete products are produced using a so-called continuous production curing system in which formwork is mounted and fixed on a transport vehicle and the transport vehicle is circulated through the production line.

For this reason, most of the manufacturing processes, such as surface finishing, mold assembly and demolding, product release, and application of release agents, are carried out unmanned.

However, when cleaning the formwork, the amount of concrete adhering to the top surface of the formwork varies depending on the type of MVC product, and the inside and outside surfaces are cleaned together after the product is removed from the formwork. Since it is not possible to completely clean the top surface of the formwork with a rotating brush or brush, which cleans without damaging the formwork, workers check and clean the uncleaned areas left behind by the cleaning equipment.

<Problems to be Solved by the Invention> The present invention provides a method for cleaning the upper surface of the formwork, which is firmly attached to the formwork, in order to eliminate uncleaned portions of the formwork and to enable unattended cleaning work without relying on workers. Since the degree of adhesion of the concrete to the inner surface of the formwork, which forms the surface of the product and is coated with a release agent, is different, the cleaning work is divided into two parts: Semi-hardened fine particles (latus) that are left behind on exposed surfaces due to concrete and breathing and are sucked into the vacuum vat during demolding, causing clogging, are also removed and cleaned before demolding the product. The aim is to make it easier to unattend work.

Therefore, the present invention aims to remove the fine particles formed on the exposed surface of the concrete due to the concrete that leaked out during the pouring of the concrete and stuck to the upper surface of the form, and the fine particles formed on the exposed surface of the concrete due to breathing, before removing the concrete product from the form. By applying vibration or shock to a cleaning jig that is held so that it can be moved in and out, and sliding the top surface of the formwork or exposed concrete surface, fine particulate matter (latus) can be removed together with the concrete firmly adhered to the formwork. The idea was to remove it while crushing it.

<Operation> A cleaning jig is placed on the top surface of the concrete IJ-te formwork or fine particles after curing and hardening, and the cleaning jig is slid while applying vibration or shock to crush the fixed concrete or fine particles. and remove it.

<Example> Fig. 1 is a front view of a cleaning device for the top surface of concrete formwork showing the present invention, Fig. 2 is a side view thereof, and Fig. 3 is a device for cleaning the top surface of the formwork and the exposed surface of poured concrete while crushing it. FIG. FIGS. 4 and 5 are a front view and a side view showing how the cleaning jig is moved in and out.

Reference numeral 3 denotes a travel motor that horizontally moves the cleaning device B on the upper surface of the formwork, and 13 represents a lifting motor that raises and lowers the cleaning jig 21 provided in the cleaning device B to the upper surface of the formwork via a lifting chain 14. Reference numeral 9 denotes a lower frame, which is suspended by a sliding ring 25 to prevent vibrations from propagating to the frame when the cleaning jig 21 slides under vibration.

19 is a vibrator mounted on the cleaning frame 20.

26 is the adhered concrete I that has been crushed by sliding on the formwork top piece 1.
J-) 40 is a rotating brush for cleaning, and 30 is a dust collection box for storing dust.

Next, an example of cleaning the upper surface of the formwork of a drifting snow gutter will be described.

As shown in FIG. 1, the formwork A whose end plate 32 direction of the assembled formwork was opened by rotating the formwork opening/closing threaded rod 35 in the previous process is placed on the conveyor truck 36, and the cleaning device B is installed. When the cleaning jig 21 is stopped at the lower frame 9, the lifting motor 13 is differentially operated to lower the cleaning jig 21 suspended from the lower frame 9.

When the lifting motor 13 rotates forward, the sprocket 16 is differentially moved, and the lower frame 9 to which the end of the lifting chain 14 is fixed is lowered via the lifting guide 10.

Accordingly, the cleaning frame suspended by the spring 25 descends, and when the tip of the cleaning jig 20 reaches the upper surface of the mold, the lifting motor 13 stops.

When the cleaning jig reaches the upper surface 31 of the formwork as shown in FIG.
Since the connecting fittings 11 at both ends are connected to an endless chain, the cleaning device B moves on the upper surface of the formwork when the drive motor is started.

In this case, the vibrator 19 placed on the cleaning frame 20, which is suspended from the lower frame 9 by a spring 25, is operated and comes into contact with the concrete 40 attached to the upper surface 31 of the formwork, as shown in FIG. Since the vibration is transmitted to the cleaning jig 21, the elongated hole 22 and the bolt 23. Flexible material 24
The cleaning jig 21, which is held removably and removably, moves up and down, and the tip of the jig breaks up the adhering comfleet.

In this embodiment, a large number of cleaning jigs 21 are arranged in parallel, so the tip of each jig slides on the top surface of the formwork according to the unevenness of the top surface, cleaning the adhering concrete or the pouring surface V.
C. The exposed fine powder can be crushed.

The residue on the formwork crushed in this way is swept away by a rotating brush 26 that cleans the upper surface, and is then sent to the dust collecting box 3.
Since the air is suctioned to zero, a normal working environment can be maintained without contaminating the air with crushing residue.

In addition, the cleaning device BVC is equipped with wheels 7 on the upper frame to prevent it from meandering due to the influence of crushing work, etc., and the distance it moves is circulated according to a preset program, so it does not move around the formwork. The cleaning device stops when it slides to a predetermined position depending on the type of mold, and the lifting motor starts at that position and pulls the lifting chain 14 upward to separate the cleaning jig from the top of the formwork and retreat to the standby position. Preparation should be made in advance, such as by moving it or moving it forward again and repeating the cleaning work described above.
This can be done according to the installed program.

When the formwork, which has been cleaned of the concrete adhering to the top surface of the formwork and the fine particles (latus) formed on the exposed surface, is moved to the next product release process, the side plate 33 of formwork A is opened. A vacuum vat (not shown) descends and adsorbs the exposed concrete surface from which particulate matter has been removed, thereby releasing the Funkrete product from the formwork.

Although the method and apparatus for cleaning the upper surface of formwork using an unmanned method and the embodiments thereof have been described above, the method and apparatus of the present invention do not necessarily have to be carried out unattended, but can be carried out in accordance with the formwork that is sent. It may be controlled each time using an operation panel.

Other vibration and impact devices are not limited to vibrators, but may be any device that provides vertical movement that can be used to crush particles with a cleaning jig.

Further, the thickness and material of the flexible member 24 that cushions the cleaning jig 21 may be selected in accordance with the vibration and the force of the impact device.

This invention can be applied in many ways without changing its gist, such as by dividing the cleaning jig into a plurality of parts in a straight line, by making the tips protrude at an acute angle, or by arranging them in parallel to handle complex surfaces. ○ <Effects of the invention> This invention separates the mold cleaning process into one before and after the product is released from the mold, thereby eliminating the need for cleaning work that previously relied on some workers, and reducing the complexity. This has made it possible to operate unmanned even on a production line where molds with different product shapes are placed.0 In addition, since the vacuum vat simultaneously cleans fine particles on the suction surface, which were the cause of clogging of the vacuum vat. This significantly improved the operational efficiency of mold release work.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a front view showing the cleaning situation, and Figs. The drawing, side view, and FIG. 6 show a formwork showing a conventional cleaning method. A...Formwork, B...Cleaning device, 2...
...Travel rail, 5...Bearing, 12...
...Stock bar 115...Bearing, 17...
...Drive chain/, 18...Tension sprocket, 27...Motor, 28...
・Rotating shaft, 29... Dust collection hose, 34.・・・・・・
・Hinge, 37...Dolly wheel, 38...
Mobile rail 0 Patent applicant: Chiyoda Giken Co., Ltd.

Claims (4)

[Claims] (1) It is possible to move in and out of the top surface of the formwork of a cured product placed on a conveyor truck that is sent to remove the concrete product placed in the formwork, according to the unevenness of the top surface to be cleaned. The cleaning jig is placed in the mold, and the cleaning jig is slid while applying vibration or shock to crush and remove the concrete attached to the upper surface of the formwork or the particulate matter exposed on the surface of the poured concrete. How to clean the top surface of concrete formwork. (2) Above the feeding path where the product is released from the formwork containing the cured product placed on the transport vehicle, remove concrete adhering to the top surface of the formwork or fine particulate matter exposed on the pouring surface. A cleaning mechanism includes a driving part that slides a cleaning jig held in an accessible manner while applying vibration or impact, and sweeps out concrete residue crushed by the cleaning jig, and scatters powder particles. A device for cleaning the top surface of concrete forms, which is equipped with a dust collector that absorbs and stores objects. (3) The apparatus for cleaning the upper surface of a concrete formwork according to claim 2, wherein the cleaning jig is divided into a plurality of parts and has a tip portion protruding in the shape of a saw blade. (4) The apparatus for cleaning the upper surface of a concrete form according to claim 2 or 3, comprising a large number of cleaning jigs arranged in parallel.