JPH11333816A - Manufacture of moldings, manufacturing device, and rotary brush for manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form moldings having a pattern and a uniform strength easily and arranges such that no load is borne on a device by almost uniformly spreading a non-fluid material over the almost entire molding face of a template and partially removing the non-fluid material so that the compressibility is almost the same in accordance with the irregularities of the molding face and then compressing the non-fluid material. SOLUTION: A non-fluid material 3 is spread almost uniformly over the almost entire molding face of a template 1. In this case, the non-fluid material 3 is spread into the state of the irregularities of the template 1 and also an irregularity pattern almost in parallel with the face to form a recessed part 3A and projecting parts 3B, 3C. Next, the non-fluid material 3 is partially removed so that the compressibility is almost the same in accordance with recessed part 1A and projecting parts 1B, 1C of the molding face of the template 1 and the face of the material 3 is almost symmetrical with the irregularities of the molding face of the template 1. Thus the projecting parts 3B, 3C of the non-fluid material 3 are formed to the recessed parts. Further, the material 3 is compression-molded after adjusting the thickness thereof. Consequently, it is possible to form moldings with a uniform strength through easy operation and at the same time, perform the manufacturing of the moldings without a load to be borne on the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method, a manufacturing apparatus, and a rotary brush for a manufacturing apparatus of a molded product such as a wood chip cement board.

[0002]

2. Description of the Related Art Conventionally, molded articles having a pattern such as a wood chip cement board have been frequently used as wall materials for buildings. The above molded articles are disclosed in JP-A-58-114907,
As described in JP-A-54808, a non-fluid material obtained by mixing cement, wood flakes, water and the like is put on a molding surface of a template provided with an uneven portion for forming a pattern, It is formed by compressing the above material on a plate with a press.

[0003]

However, in the above-mentioned conventional method for manufacturing a molded article, the non-flowable material is spread on the entire molding surface of the mold plate at a substantially uniform development density, and then pressed by a press machine. Compressed. For this reason, the material developed in the concave portion of the template (the portion that constitutes the convex portion of the molded body)
The compression ratio (thickness before compression / thickness after compression) applied by the press machine is small, and the material developed on the convex portion of the template (the portion that will form the concave portion of the molded body) is applied to the press machine. The compression ratio added tends to increase.

Therefore, when looking at the pressure density and strength of each part of the compact after compression molding, the convex portion of the compact has a low pressure density and low strength because the compression ratio at the time of molding is low, and the concave portion of the compact has Because of the high compression ratio during molding, there is a tendency for high pressure density and high strength to occur, and it is difficult to equalize the strength of a molded article having a pattern. Further, when the pressing force of the press machine is increased in order to secure high strength in the convex portion of the molded body, the molding pressure in the concave portion of the molded body, that is, the convex portion of the mold plate becomes excessive. That is, the press machine becomes large,
There is a possibility that the press machine and the template will be damaged. The present invention
It is an object of the present invention to provide a manufacturing method and a manufacturing apparatus which can easily form a molded body having a pattern with a uniform strength and do not burden the apparatus.

[0005]

According to the first aspect of the present invention,
A non-flowable material is put on a molding surface of a template provided with an uneven portion for forming a pattern, and the material on the template is compressed by a press to form a molded article having a pattern. In the method of manufacturing the body, the non-fluid material is spread almost uniformly on substantially the entire molding surface of the template, and then the non-fluid material is compressed so that the compression ratio becomes substantially the same according to the unevenness of the molding surface of the template. This is a method for producing a molded product, which comprises removing a part of the material and then compressing the molded product using a press machine.

According to a second aspect of the present invention, a non-flowable material is put on a molding surface of a template having an uneven portion for forming a pattern, and the material on the template is compressed by a press. According to the method for manufacturing a molded body for molding a molded body having a pattern, the non-fluid material is spread substantially uniformly on substantially the entire molding surface of the template, and then substantially plane-symmetric with the uneven portion of the molding surface of the template. A part of the developed non-fluid material is removed from its upper part so as to obtain a molded body, and the molded body is compressed and molded by a press machine.

According to a third aspect of the present invention, a non-flowable material is put on a molding surface of a template having an uneven portion for forming a pattern, and the material on the template is compressed by a press machine. Thus, in a molded body manufacturing apparatus for molding a molded body having a pattern, there is provided a non-fluid material removing apparatus for removing the non-fluid material into a shape that is substantially plane-symmetric with the irregularities of the molding surface of the template. An apparatus for manufacturing a molded article, characterized in that:

According to a fourth aspect of the present invention, there is provided an apparatus for removing a non-fluid material, comprising a rotary brush having a tip portion having a shape corresponding to the unevenness so as to be substantially plane-symmetric with the unevenness of the molding surface of the template. An apparatus for manufacturing a molded article according to claim 3, characterized in that:

According to a fifth aspect of the present invention, the shape of the tip portion of the brush is the same as the shape of the upper surface of the non-flowable material for making the compression ratio of the non-flowable material on the forming surface substantially the same. The rotary brush according to claim 4, wherein the rotary brush has a shape corresponding to a side edge shape of the forming gap.

In the present invention described above, the non-flowable material is a material having almost no flowability before being formed into a molded product by compression molding. Examples thereof include a material obtained by mixing water and the like, and a mixture of a wood chip for a particle board and an adhesive.

[0011] In the present invention as defined in claim 1, partially removing the non-fluid material so that the compressibility becomes substantially the same in accordance with the irregularities of the molding surface of the template means that the non-fluid material is developed in the concave portions of the template. Compression ratio (thickness before compression / thickness after compression) applied to the compressed non-fluid material (the portion that will constitute the convex portion of the molded body) and the non-fluidity developed on the convex portion of the template. To remove a part of the upper surface of the non-fluid material spread on the convex portion of the template so that the compressibility applied to the material (the portion that forms the concave portion of the molded body) is substantially the same. It is. In other words, the shape of the upper surface of the non-fluid material for making the compression ratio substantially the same can be obtained by removing the material above the upper surface of the non-fluid material for making the compression ratio substantially the same. Note that, of course, the upper surface may be further removed over the entire surface of the non-fluid material.

In the present invention according to claim 5, the side edge shape of the molding cavity means that the non-fluid material on the molding surface of the template is compression-molded by a press machine. Is located in contact with the gap between the template and the press machine, and thus refers to the shape of the gap in contact with the side edge of the non-fluid material.

(Function) In the method for producing a molded article according to the first aspect, the non-fluid material is spread substantially uniformly on substantially the entire molding surface of the template, and then the irregularities are formed on the molding surface of the template. After removing a part of the non-flowable material so that the compression ratio becomes almost the same, it is compressed by a press machine and molded. In addition, only a part of the non-fluid material is removed so that the compression ratio becomes substantially the same in accordance with the unevenness of the molding surface of the template, and this operation is also facilitated. And the obtained compact has a uniform pressure density and thus a uniform strength in each part, so that the strength of the whole compact is increased and no load is imposed on the press machine.

According to a second aspect of the present invention, there is provided a method for manufacturing a molded article, wherein the non-fluid material is spread substantially uniformly on substantially the entire molding surface of the template.
A part of the developed non-fluid material is removed from the upper part so as to be substantially symmetrical with the irregularities of the molding surface of the template, and then compressed and molded by a press machine. The development of the non-fluid material is easy because it is only an operation of uniformly spreading the non-fluid material, and the part of the developed non-fluid material is then placed on the upper part so as to be substantially plane-symmetric with the irregularities of the molding surface of the template. It is easy to do this. Since the non-fluid material is thicker at the concave portions of the molding surface and thinner at the convex portions, the compression ratio becomes substantially the same when compression-molded by a press machine. It becomes uniform and the strength of the whole molded body increases, and no load is imposed on the press machine.

According to a third aspect of the present invention, there is provided an apparatus for removing a non-fluid material, which removes the non-fluid material so as to be substantially symmetrical with the concave and convex portions of the molding surface of the template. Therefore, the non-fluid material becomes thicker at the concave portion of the molding surface and thinner at the convex portion, and when compressed by a press machine, the compression ratio becomes almost the same, and the load is not applied to the press machine, and the molding pressure of the compact is locally increased. Since the size is not excessively large, the size of the press does not increase, and the press and the template do not break.

According to a fourth aspect of the present invention, there is provided an apparatus for manufacturing a molded article, wherein the non-fluid material removing apparatus comprises a rotary brush having a tip portion having a shape corresponding to irregularities so as to be substantially plane-symmetric with irregularities on a molding surface of a template. Therefore, by rotating the brush, a part of the non-flowable material is easily removed and adjusted to have substantially the same compression ratio.

According to a fifth aspect of the present invention, there is provided a rotary brush for a molded body manufacturing apparatus, wherein the shape of the tip of the brush is such that the compression ratio at the time of compression molding of the non-fluid material on the molding surface is substantially the same. The shape corresponding to the top shape of the non-fluid material and the side edge shape of the molding cavity makes the compression ratio of the non-fluid material for molding approximately the same and simultaneously adjusts the side edge shape of the molded body I do.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples, and various modifications are possible. FIG. 1 is a schematic diagram showing one embodiment of the present invention, and FIG.
FIG. 3 is a schematic view showing an example of a material supply device and a non-fluid material removing device used in the embodiment of the present invention. FIG. 3 is a cross-sectional view showing an example of a non-fluid material removing device used in the embodiment of the present invention. FIG. 4 is a schematic diagram showing an example of a press used for carrying out the present invention, and FIG. 5 is a perspective view showing an example of a molded body manufactured according to the embodiment of the present invention.

In this embodiment, a hard wood chip cement board (formed body) having a groove pattern is formed, and a non-flowable material 3 is put on a forming surface of a template 1 by a material supply device 10 and pressed. The above-mentioned material is compressed and heat-formed by the machine 20,
The molded body 2 is manufactured.

Here, the template 1 has a concave portion 1A and convex portions 1B and 1C for forming a groove pattern. The concave portion 1A becomes the convex portion 2A of the molded body 2, and the convex portions 1B and 1C become the concave portions (grooves) 2B and 2C of the molded body 2. The material of the molded body 2 is
It is formed to be non-flowable by mixing a cement composition as a hardening material, a wood flake as a reinforcing material, water and the like. The cement composition preferably contains Portland cement, alumina cement, and gypsum hemihydrate.

As shown in FIG. 2, the material supply device 10
It is installed above a template conveyor 11 that transports the template 1,
Mixer 1 that mixes the above-mentioned raw materials at a predetermined ratio to produce a material
2. Supply conveyor 13 for transferring materials from mixer 12,
A slat conveyor 14 and a leveling conveyor 15 for quantifying the material sent by the supply conveyor 13, and a developing brush 16 for distributing and quantifying the quantified material from the supply conveyor 13 on the forming surface of the template 1. It is composed of

As shown in FIG. 4, the press machine 20 includes a template 1, a non-fluid material 3 spread on a molding surface of the template 1, and a hot plate 4 provided on the lower surface of the template 1. And a large number of sets are stacked between the upper and lower press sections 21. Thereby, the non-fluid material 3 becomes
After being heated and pressurized on the molding surface of the mold plate 1 to be compressed and cured, it is left to stand at room temperature and further cured to form a molded body 2 having a groove pattern.

In this embodiment, after the form of charging the non-fluid material 3 on the molding surface of the mold plate 1 is adjusted as follows, it is subjected to the compression molding process by the press machine 20. The non-fluid material 3 is spread almost uniformly on almost the entire molding surface of the template 1. Then, as shown in FIG. 1A, the non-fluid material 3 is developed in an uneven state substantially parallel to the unevenness of the template 1. That is, the concave portions 3A and the convex portions 3B and 3C are also formed in the non-fluid material 3.

Then, next, the concave portion 1 on the molding surface of the template 1 is formed.
A, since the non-fluid material 3 is partially removed from the upper part of the molding surface of the template 1 so that the compression ratio becomes substantially the same according to the projections 1B and 1C so that the non-fluid material 3 is substantially plane-symmetric with the irregularity of the molding surface of the template 1. is there. That is, the portions of the convex portions 3B and 3C of the non-fluid material are removed so as to become concave portions.

The removal of the excess non-fluid material 3
This is performed by the non-fluid material removing device 30. The non-fluid material removing device 30 removes the non-fluid material 3 by a rotating brush 31 in the case of a side edge of the template 1. As shown in FIG. 3, the shape of the bristle tips of the rotating brush 31 is arranged in a disk shape, and has a shape corresponding to the concave portion 1A and the convex portion 1B of the molding surface. In this case, the small-diameter portion 312 of the rotating brush 31 has such a shape that the non-fluid material 3 in a portion corresponding to the side edge shape of the molded body 2 (side edge shape of the molding gap) can be scraped off. The non-fluid material removing device 30 is provided in the middle of the template conveyer 11 as shown in FIG.
It adjusts the shape of the side edge part of. The non-fluid material 3C corresponding to the convex portion 1C at the center of the template is removed by a scooping tool (not shown) made of another channel plate.

The rotating brush 31 is adapted to rotate about a central axis 313.
11 corresponds to the shape of the molding surface, and the small diameter portion 312 corresponds to the side edge shape of the molding cavity. The bristles of the rotating brush 31 are made of elastic material such as nylon fiber and horse hair. Nylon fiber bristles are resistant to abrasion, hard to adhere to cement material, and easy to clean. Also, horse hair is difficult for cement material to adhere to.

After adjusting the thickness of the non-fluid material 3 on the template 1 as shown in FIG.
It is compressed at 0 and molded. As described above, the first non-fluid material 3 is simply spread uniformly, and the work is easy. Then, only a part of the developed non-fluid material 3 is removed from the upper part thereof so as to be substantially symmetrical with the uneven portion of the molding surface of the template 1, so that this operation is also easy. The non-fluid material 3 is thicker at the concave portion 1A and thinner at the convex portions 1B and 1C of the molding surface.
Is that the compaction density and thus the strength of each part become substantially uniform, so that the strength of the entire molded body 2 is increased.
There is no burden on zero.

The apparatus for manufacturing a molded body is provided with the non-fluid material 3 having a shape substantially symmetrical with the irregularities on the molding surface of the mold plate 1.
The non-fluid material 3 is removed by the non-fluid material removing device 30 so that the non-fluid material 3 is thickened at the concave portion 1A of the molding surface and the convex portions 1B and 1C are formed.
When the compression molding is performed by the press machine 20, the compression ratio becomes substantially the same, the load is not applied to the press machine 20, the molding pressure of the compact 2 is not locally excessively increased, and the press machine 20 is enlarged. No damage is caused to the press machine 20 and the template 1.

[0029]

According to the first aspect of the present invention, the method for manufacturing a molded body is such that a non-fluid material is spread almost uniformly on substantially the entire molding surface of the template, and then compressed in accordance with the unevenness of the molding surface of the template. After removing a part of the non-fluid material so that the ratios are almost the same, then compressing and molding with a press machine, the development of the first non-fluid material is an operation that only unfolds uniformly and is easy. In addition, it is only necessary to remove a part of the non-flowable material so that the compression ratio becomes substantially the same in accordance with the unevenness of the molding surface of the template, and this work is also facilitated, and the obtained molded body has the same pressure. The density, and thus the strength, is uniform at each part, so that the strength of the whole molded body is increased, and no load is imposed on the press.

According to a second aspect of the present invention, there is provided a method of manufacturing a molded article, wherein the non-fluid material is spread substantially uniformly on substantially the entire molding surface of the template.
A part of the developed non-fluid material is removed from the upper part so as to be substantially symmetrical with the irregularities of the molding surface of the template, and then compressed and molded by a press machine. The development of the non-fluid material is easy because it is only an operation of uniformly spreading the non-fluid material, and the part of the developed non-fluid material is then placed on the upper part so as to be substantially plane-symmetric with the irregularities of the molding surface of the template. This work becomes easy, and the non-fluid material becomes thicker at the concave portion of the molding surface and becomes thinner at the convex portion. , The consolidation density, and thus the strength, is substantially uniform in each part, and the strength of the entire molded body increases,
In addition, no burden is imposed on the press machine.

According to a third aspect of the present invention, there is provided an apparatus for removing a non-fluid material, which removes the non-fluid material so as to have a shape substantially symmetrical with the irregularities of the molding surface of the template. Therefore, the non-fluid material becomes thicker at the concave portion of the molding surface and thinner at the convex portion, and when compressed by a press machine, the compression ratio becomes almost the same, and the load is not applied to the press machine, and the molding pressure of the compact is locally increased. Since the size is not excessively large, the size of the press does not increase, and the press and the template do not break.

According to a fourth aspect of the present invention, there is provided an apparatus for manufacturing a molded body, wherein the non-fluid material removing apparatus comprises a rotary brush having a tip portion having a shape corresponding to the unevenness so as to be substantially symmetrical with the unevenness on the molding surface of the template. Because of this, by rotating the brush, a part of the non-flowable material can be easily removed and adjusted so as to have substantially the same compression ratio.

According to a fifth aspect of the present invention, there is provided a rotary brush for a molded body manufacturing apparatus, wherein the shape of the tip of the brush is such that the compression ratio at the time of compression molding of the non-flowable material on the molding surface is substantially the same. The shape corresponding to the top shape of the non-fluid material and the side edge shape of the molding cavity makes the compression ratio of the non-fluid material for molding approximately the same and simultaneously adjusts the side edge shape of the molded body it can.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a non-flowable material on a template according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an example of a material supply device and a non-fluid material removal device used for carrying out the present invention.

FIG. 3 is a cross-sectional view showing an example of a non-fluid material removing device used for carrying out the present invention.

FIG. 4 is a schematic view showing an example of a press used for carrying out the present invention.

FIG. 5 is a perspective view showing an example of a molded body manufactured according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Template 1A Concavity 1B, 1C Convex part 2 Molded body 3 Non-fluid material 10 Material supply device 20 Press machine 30 Non-fluid material removal device 31 Rotary brush

Claims (5)

[Claims] 1. A mold having a pattern by introducing a non-fluid material onto a molding surface of a template provided with an uneven portion for forming a pattern and compressing the material on the template by a press machine. In the method of manufacturing a molded body for molding a body, after the non-fluid material is spread substantially uniformly on substantially the entire molding surface of the template, the compression ratio becomes substantially the same according to the unevenness of the molding surface of the template. A method for producing a molded body, comprising removing a part of a non-flowable material and compressing the molded body with a press machine. 2. A mold having a pattern by introducing a non-fluid material onto a molding surface of a template having an uneven portion for forming a pattern, and compressing the material on the template by a press machine. In the method for manufacturing a molded body for molding a body, the non-fluid material is spread substantially uniformly over substantially the entire molding surface of the template, and then the development is performed so that the unevenness of the molding surface of the template is substantially plane-symmetric. A method for producing a molded article, comprising removing a part of the non-flowable material from its upper part, and compressing the molded article with a press machine. 3. A molding having a pattern by introducing a non-fluid material onto a molding surface of a template provided with an uneven portion for forming a pattern and compressing the material on the template by a press machine. In a manufacturing apparatus of a molded body for molding a body, a non-fluid material removing apparatus for removing the non-fluid material in a shape substantially symmetrical with the uneven portion of the molding surface of the template is provided. Manufacturing equipment for moldings. 4. An apparatus for removing a non-fluid material, the apparatus comprising a rotary brush having a tip portion having a shape corresponding to the unevenness so as to be substantially symmetrical with the unevenness of the molding surface of the template. Item 5. An apparatus for producing a molded article according to Item 3. 5. The shape of the top surface of the non-fluid material and the shape of the side edge of the molding cavity for making the tip of the brush have substantially the same compression ratio when compressing the non-fluid material on the molding surface. The rotary brush for a molded body manufacturing apparatus according to claim 4, wherein the rotary brush is formed in a shape corresponding to the following.