JPS58114907A - Manufacture of shape with bent corner section - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a molded article with curved corners.

Curved corner like a V-shaped groove (7-shaped part or L-shaped part)
Conventionally, when making a molded body using a hardening material such as cement, a filter frame of a predetermined shape is assembled and the hardening material is poured into the frame and molded. When using a molding material whose reinforcing material is one size larger than the above-mentioned curable material, there is a problem in that it is difficult to use the above-mentioned conventional method of pouring into a mold because the fluidity becomes poor.

This fh-me has been made in view of the above-mentioned nine problems.
The molding material has poor fluidity by supplying and layering the molding material onto a foot plate that is unfolded into a flat plate shape and can be bent nine times, and then bending and deforming the plate into a predetermined shape to make a molded body. 7 in case
To provide a method for manufacturing a molded body having nine curved corners by which a molded body having a shape or FiL Ube can be easily produced.

Hereinafter, seven embodiments of the present invention will be described with reference to the drawings.

In this example, 8-joints of φ1. The outer surface of this molded body has 1. A top surface Y extending in the width direction, a lateral groove X1 at the center in the width direction extending to intersect the top surface χ, and L-shaped joint grooves Y, , Y, extending along both side edges are formed. .

In FIG. 2, 1 is a first quantitative supply device,
It is equipped with a mixer 11 that mixes cement as a hardening material, fibers or wood chips as a reinforcing material, and water in a predetermined ratio to form a surface layer material of a molded body, and this surface layer material & is supplied by a conveyor 12.
0 rear end. The surface layer material 1 transferred onto the supply conveyor 12 is sent to the front end of the supply conveyor 12 by a slat conveyor 13 and a leveling brush 14.
It is leveled to a predetermined uniform height and quantified, and when it reaches the front end, the plate conveyor 2 is moved by the flight brush 15.
It is supplied in a scattered manner onto the upper fixed plate 3.

This fixed plate 3 is a bendable fixed plate as will be described in detail later, and is laid out in a flat plate shape and placed on the fixed plate conveyor 2.

This fixed plate conveyor 2 is installed passing below the supply conveyor 12 and the supply conveyor 42 of the second quantitative feeding device 4, and conveys the fixed plate 3 at a predetermined speed in the same direction as the conveyance direction of both supply conveyors 12 and 420. do. The surface layer material from one company is spread onto the moving plate 3, and the surface layer a1 of the classified nine compacts is formed on the entire surface of the plate 3 with a predetermined layer height as shown in Fig. 3 (0). The nine constant plate 3 covered with the surface layer a1 moves toward the second metering device 4. Second quantitative supply ar
Miki in lt4? 41, a curable material, a reinforcing material, and water are mixed in a predetermined ratio to form a toecap layer material. As in the case of device 1, the slat conveyor 43
The paper is measured with a leveling brush 44, and is then made into paper by a flight brush 45 and supplied in a scattered manner onto the fixed plate 3 which has passed through 42 supply conveyors. The core layer/material spread on the foot plate 3 forms a predetermined core layer on the surface layer as shown in FIG. 3(b). In this way, the fixed plate 3 is covered with the surface layer and the core layer, and the roll brush 5 is applied with the layer A on it.
It is transported facing downward.

Next, the fixed plate 3 will be explained with reference to FIGS. 4 and 5.

In the figure, 31 is a lower plate that can be bent into a V-shape,
The central fixing plate 32! consists of a central fixing plate 31 and lifts 32b and 32C connected to both sides of the central identification plate 32a by hinges 371 and 37b, respectively. A spacer portion $134 is attached over the entire length thereof. this spacer.

A convex portion 34M is formed on the central portion of the member 34 in the longitudinal direction. 35a and 35b are slide plate O frame members 3
6 is attached, and a 1-shaped projection 351 extending in the front-rear direction as shown in FIG. 6 is formed on the lower surface. The slide plate 351 is mounted on the lifting plate 32b.
The slide plate 35b is slidably mounted by fitting the Tll521KT-shaped protrusion 351 formed on the upper surface in the vertical direction, and the sliding plate 35b is placed on the other lifting plate 32C.
A single-shaped protrusion 351 is fitted into a T-groove 321 extending in the longitudinal direction formed on the upper surface of C, so that the spacer member 34 side is freely biased by spring devices SSa and 33bK, respectively. The pressure Jl [
K, in contact. The spring devices 33M and 33b are provided on the free side ends of the lifting plates 32b and 32C, respectively, and impart elasticity toward the spacer member 34 to the side end surfaces of the anti-sparner members 34111 of the slide plates 35m and 35b. The opposing sides of the frame members 36 and 36 are inclined aii36m.
As shown in FIG. 6, a fitting hole 36b is formed in the center portion in the middle direction. 381 and 38b are slide frames for forming horizontal grooves on the nine molded bodies shown in FIG.
It is fitted in the center of the width direction of the upper surface of the spacer member 5b so as to be slidable in the longitudinal direction with the length direction being the sliding direction of both slide plates, and is biased against the convex portion 34J of the spacer member 34 by the spring devices 39m and 311b. - The end face is in pressure contact with the side end face of the convex portion 34M. Slide frame 38 heat, 3
8b on the side opposite to the spacer member 34 are respectively connected to the frame member 36.8b.
It is slidably inserted into the fitting hole 36b of No. 36, and the above-mentioned end face is formed in a semicircular arc shape. The portion of the convex portion 34m that is in contact with the semicircular arc shaped end portion is the semicircular arc shaped recessed portion 3.
It is 41. The spring devices 39m, 31b each have one end inserted into the fitting hole 36b of the frame member 36.36.
The bolts 9, which are fixedly housed in each of the slide frames 6 and 6, apply a pushing force directly toward the convex portion 34 to the slide frame 38a138b. Note that the slide frame 38a.

On the lower surface of 38b, there is a slide plate 35m, 1 on the lower surface of 35b.
A protrusion similar to the protrusion 351 is formed, and grooves that engage with the protrusion are formed on the upper surfaces of the slide plates 35M and 35b.

The stratified rostrum made up of the surface layer a and the core layer b1 on the fixed plate 3 is further conveyed together with the fixed plate 3 by the fixed plate conveyor 2, and reaches below the roll brush 5. When the boundary between the fixed center plate 32m of the fixed plate 3 and the lifting plate 32C comes directly under the roll brush 5, the roll brush 5 descends to form a triangular groove shape as shown by B in Fig. 4. Then, the stratified material Atl' at the boundary between the central fixing plate 32 and the lifting plate 32b is removed.
Excise into a triangular groove in a lij-like manner. The laminated material A is pressed onto this cutting surface as necessary.

When this cutting 1 is completed, the plate 3 is loaded with the layered material and transferred from the plate conveyor 2 onto a table (not shown) using an unloader (not shown), and the central fixing plate 321 of the plate 3 is During this bending operation, the sliding plate 35m is fixed to the above-mentioned table and the lifting plates 32b and 32C are set at a predetermined angle with respect to the horizontal plane.
and 35b slide on the lifting plates 32b and 32C, respectively, against the elasticity of the spring devices 33a and 33b, with the ridges 35 and 35- substantially in contact with the ridges 34a1.34M+ of the spacer member 34. . Therefore, the ridges X and yl of the seed material shown in FIG. 1 can be formed neatly. 9. The slide frames 38a and 311b have their semi-circular end faces fitted into the semi-circular concave portions 341 and 341 of the convex portion 44M of the spacer member 34, so that there is no gap between them and the convex portion 34M. Shape each piece neatly. In the laminated material A, the boundary between the central fixing plate 32 and the lifting plates 32b and 32C, that is, the part corresponding to the bent part of the lower plate 31, is cut out in a V-shaped groove shape, so the part near this bent part is Even when the fixed plate 3 is bent as described above, it maintains a predetermined layered state as shown in FIG. Follow up □. When this bending operation is completed, the laminated product At1-is pressed, and then the fixed plate 3 is surrounded in the direction shown by the arrow in FIG. 7 and released from the mold, thereby obtaining the V semi-formed product shown in FIG. 1. The thus obtained V-shaped molded body 71j has a top surface y1 formed by the spacer member 34 on its surface.
1 slide frames ssa, sob and the convex portion 34a of the spacer member 34. In order to facilitate the above am, the fixed plate 3 includes:
If necessary, apply a mold release agent in advance.

FIG. 8 0), ←) shows another embodiment of the fixed plate 3, in which the sliding plate 35b and the spacer member 32 are not engaged with the lifting plate 32C in an uneven manner. By drilling holes 6 and 1 that communicate with each other as shown in FIG. The structure is such that the side part on the member 34 side is prevented from floating up, and the other side part is held down by a ]-shaped holding plate 8 attached to the lifting plate 32C as shown in FIG. If you want to make a more V-shaped half molded body without providing the other groove X, as shown in FIG. 9, the slide frame 3
81.38b and the convex tls34 of the spacer member 34 and the heat frame member 36.36t - use the removed footboard. In this case, as shown in Fig. 9f→,), the fixed plate does not use the slide plate 31. It may be as simple as providing a gap C1C. 10 is a release agent coated plate.

In the above embodiment, a case was described in which a V-shaped semi-molded body was made, but if the fixed plate had a structure that could be bent into a U-shape, a straight-shaped shaped body could be easily made.

As described above, according to the present invention, a fixed plate that can be bent into a predetermined shape is developed into a flat plate, and a molding material that is a mixture of a curable material and a reinforcing material is supplied onto the fixed plate. A layer of the molding material is formed, and when this layering work is completed, the fixed plate is bent into a predetermined shape and the layer on the fixed plate is receded and deformed into the bent shape of the upper fixed plate. After that, the mold is released from the setting plate, and the laminated material is pressed before or after bending the foot plate, so that the ft, w of the molded material is
4. It is possible to easily produce a molded body having a V-shaped or L-shaped curved corner with poor J properties; Until then, flat molding.

There is an advantage that equipment for manufacturing the body can be used.

The perspective view, No. 2- is a process diagram of an embodiment of the method for producing a molded body according to the present invention, FIG. A view in the direction of the arrows, Fig. 7 is a nine-sided view of the fixed plate, Figs. ) is a diagram showing still another example of the fixed plate.

1.4... Constant supply device, 2... Fixed plate conveyor, 3
... Fixed plate, 5... Roll brush.

4Iken Applicant Sekisui Chemical Koka Co., Ltd. Representative Motoshi Fujinuma

Claims (1)

[Claims] L: 1) Supplying a molding material which is a mixture of a hardening material and a reinforcing material onto a bendable fixed plate developed into a flat plate, and layering the mixture on the fixed plate. A molded article with corner corners characterized by bending and deforming the layered material on the axillary plate into a shape that follows the plate, and then separating the layered material and the plate. Production method.