JPH0452374A - Method and device for surface preparation of concrete mold panel - Google Patents

Abstract

PURPOSE:To easily remove attached concrete by sandwiching a concrete mold panel between a diaphragm and a pressing roller, and slowly rubbing the panel with the diaphragm being vibrated in its vertical direction. CONSTITUTION:A concrete mold panel 1 is sandwiched between a pair of vertical feed rollers 7,7 each located on the upper side P and is supplied between a diaphragm 2 and a pressing roller 3 and passed therethrough and is then sandwiched between a pair of vertical feed rollers 8, 8 located on the lower side Q and is pulled out. During the above process, the panel 1 is pressed against the diaphragm 2 by a plurality of rollers 3 each supported by a pressurizing mechanism 6 and is rubbed by the protrusion 2a of the diaphragm 2 being vibrated in its vertical direction by a vibration source 4. But the panel is pressurized by the pressing roller 3 through the pressurizing mechanism 6 provided with a pressurizing spring 6a and therefore buffer action takes place and friction takes place only in the vertical direction and is so gentle that attached concrete is removed without flawing the surface of a base material.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is an improvement of a method and apparatus for removing concrete that has adhered to it in order to reuse formwork panels to which concrete has adhered during concrete work. It is something that takes place in between.

<Prior Art> As formwork panels for concrete work, in addition to metal formwork, wooden formwork made by cutting 12 mm wooden plywood for formwork into required dimensions is usually used.

For profitability reasons, the formwork panels used should be cleaned as many times as possible (at least 2 to 3 times even if they are made of wood).
3 times) need to be reused.

Conventionally, in order to remove concrete that has adhered to formwork panels, there is a method of applying a rotating wire brush and scrubbing, but if the wire brush is weak, it will not be possible to remove the adhered material, and if it is too hard, It may damage the surface of the base material of wooden formwork panels, making them unusable.

In addition, instead of wire, a large number of cam-shaped pieces formed by cutting (punching) thin iron plates of 3 to 4 mm into strips around an eccentric shaft were connected in different phases. There is a method of rotating an object eccentrically and hitting the surface of the wooden formwork panel with a large number of cam-shaped pieces, but it is noisy and
There are problems such as reaching 0 horn and severe wear of the cam-shaped piece (if the iron plate is made thicker, the surface of the base material will be damaged).

<Problems to be Solved by the Invention> In light of the above, we have developed a cleaning method that allows easy and complete removal of adhering concrete from used wooden formwork panels and does not damage the surface of the base material. equipment is required.

An object of the present invention is to provide a concrete formwork panel cleaning method and apparatus that solve the above-mentioned problems.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the method for wiping a concrete formwork panel according to the present invention includes a diaphragm having a large number of protrusions formed on its surface, and a diaphragm having a thickness slightly smaller than that of the concrete formwork panel. The concrete formwork panel is vibrated by a plurality of pressure rollers supported by a pressure mechanism equipped with springs while the concrete formwork panel l is passed between a plurality of pressure rollers arranged in parallel with a small interval between them. The method consists of pressing the vibration plate against the plate, vibrating the vibration plate in the width direction using an integrally connected vibration source, and rubbing the concrete formwork panel with the projections.

Furthermore, the concrete formwork panel shaving device according to the present invention is provided with a pair of vertical feed rollers for transporting the concrete formwork panel between them, and has a plurality of protrusions on the surface on the downstream side of the feed rollers. The vibration produced by arranging the formed vertical diaphragm, arranging a plurality of pressure rollers parallel to the diaphragm at intervals slightly smaller than the thickness of the concrete formwork panel, and integrally connecting them to the back surface of the diaphragm. An excitation source that vibrates the plate in the radial direction is provided, and each of the presses a-
In addition to providing a rotation mechanism including a pair of rotation arms that can rotate the roller forward and backward relative to the diaphragm,
Each pressure roller is equipped with a pressure mechanism equipped with a pair of springs that presses the concrete formwork panel against the diaphragm, and the concrete formwork panel that has passed through the link between the diaphragm and the pressure roller is sandwiched between them and pulled out. It is equipped with a pair of vertical pressing rollers.

Effect> The method and device for cleaning a concrete formwork panel configured as described above involves sandwiching the concrete formwork panel between a diaphragm and a pressing roller, and gently rubbing the concrete formwork panel with a diaphragm that vibrates in the vertical direction. As a result, adhering concrete can be easily removed without damaging the surface of the base material, and it can be reused many times.

<Example> To explain the example with reference to the drawings, 1 is a concrete formwork panel, 2 is a vertical diaphragm having a large number of protrusions 2a formed on its surface, 3 is a plurality of vertical pressing rollers, and the diaphragm 2 They are arranged parallel to each other with an interval slightly smaller than the thickness of the concrete form panel 1. Reference numeral 4 denotes an excitation source that vibrates the diaphragm in the vertical direction, and is integrally coupled to the back surface of the diaphragm 2. In addition, in FIG. 4, each protrusion 2a is formed in the shape of a truncated pyramid, but the shape is not limited to this.In order to smoothly guide the vertical vibration of the S moving plate 2, Stepped portions 2b, 2b formed at both front and rear ends of the guide are fitted into recesses of the vertical guide 11°11 having a U-shaped cross section. Further, supporting members 12 made of a rubber-like elastic body are connected to the upper and lower ends of the stepped portions 2b, 2b of the diaphragm 20, and are supported on a pedestal 13 via them.

Reference numeral 5 denotes a rotation mechanism capable of rotating each of the pressure rollers 3 forward and backward relative to the diaphragm 2, which supports the pressure roller 3 at one end and is supported by brackets 9, 9 at the other end. A pair of upper and lower rotating arms 5a and 5att are provided. Note that the bladders 9, 9 are attached to a support stand 10.

The pressing mechanism 6 that elastically presses the concrete formwork panel 1 against the diaphragm 2 using the pressing roller 3 is configured as follows. Each pressure roller 3 has a pair of upper and lower springs 6a, 6a.
and spring holding poles (6b, 6b) for passing and holding the springs (6a, 6a). Each spring holding bolt 6b is
A spring stop flange 6C is provided in the middle, one end is pivotally connected to the roller shaft 3a, and the other threaded end is screwed into a screw hole in the support base 10 and fastened with a screw 6d.

In addition, 7, 7 is a pair of feeding rollers that feed the concrete formwork panel l between the diaphragm 2 and the pressing roller 3;
Reference numerals 8 and 8 designate delivery rollers for pulling out the concrete formwork panel 1 that has passed therebetween.

Next, the effect will be explained. The concrete formwork panel 1 is sandwiched between a pair of vertical feed rollers 7.7 on the upstream side, is fed between the diaphragm 2 and the pressure roller 3, is passed through, and is passed through the pair of vertical feed rollers 7.7 on the downstream side. Insert it between 8 and 8 and pull it out. Meanwhile, the concrete formwork panel 1 is pressed against the diaphragm 2 by a plurality of rollers 3 supported by a pressure mechanism 6.
, and is rubbed by the protrusion 2a of the diaphragm 2 that vibrates in the vertical direction by the vibration source 4, but since the pressure by the pressure roller 3 is applied by the pressure mechanism 6 equipped with the pressure spring 6a, there is no buffering effect. The friction is gentle only in the vertical direction, and the adhering concrete is removed without damaging the surface of the base material, and the removed concrete falls downward, damaging the diaphragm 2 and pressing roller 3. There is no damage, and therefore the concrete formwork panel 1 treated according to the invention can be reused many times.

<Effects of the Invention> Since the present invention is constructed as described above, the adhering concrete of the used wooden formwork panel can be easily and completely removed without damaging the surface of the base material. , it can be reused many times and is extremely useful.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view, and FIG. 4 is an enlarged sectional view of a protrusion. l Concrete formwork panel 2 Vibration plate 2a Protrusion 2b Step part 3 - Pressure roller Roller shaft vibration source rotation mechanism Swivel arm pressure mechanism Spring spring holding bolt Spring stop flange nut Feed roller Feed roller Bracket support guide support member Frame lower upstream side downstream side

Claims (1)

[Claims] [1] A diaphragm (2a) having a large number of protrusions (2a) formed on its surface.
) and a plurality of pressure rollers (3) arranged in parallel with an interval slightly smaller than the thickness of the concrete form panel (1).
) while passing the concrete formwork panel (1) between the concrete formwork panel ( 1) is pressed against the diaphragm (2), and the diaphragm (2) is vibrated in the vertical direction by a vibration source (4) that is integrally combined with the diaphragm (2) to cause the concrete formwork panel (1) to form a protrusion (2a). A method of cleaning concrete formwork panels that consists of rubbing. [2] A pair of vertical feed rollers (7, 7) are provided to transfer the concrete formwork panel (1) between them, and a surface is placed on the downstream side (Q) of the feed rollers (7, 7). A vertical diaphragm (2) formed with a plurality of protrusions (2a) is arranged, and a plurality of vertical diaphragms are placed parallel to the diaphragm (2) at intervals slightly smaller than the thickness of the concrete formwork panel (1). A number of pressing rollers (3) are arranged, and an excitation source (4) is provided for vibrating the diaphragm (2) in the width direction, which is integrally connected to the back surface of the diaphragm (2). )
A rotating mechanism (5) equipped with a pair of rotating arms (5a, 5a) capable of rotating forward and backward with respect to the diaphragm (2) is provided, and for each pressing roller (3), the concrete Pressure mechanism (
6), and another pair of vertical delivery rollers (8, 8) for pulling out the concrete formwork panel (1), which has passed between the diaphragm (2) and the pressure roller (3), sandwiched between them. A device that cleans concrete formwork panels.