JPH054222A - Reinforcement panel manufacturing method and device - Google Patents

Abstract

(57) [Summary] [Purpose] A panel that can be applied to flooring and the like and that has a reinforcing material inserted so as to have sufficient strength is continuously molded by an extrusion molding method. A die attached to a container of an extrusion molding machine and having a die hole corresponding to a cross section of a panel to be molded is attached, and a stem inserted into the container to press the material is provided. A mandrel is built in the stem so that the mandrel can move in and out, and an insertion hole for a reinforcing wire is provided in a material billet made of a panel material that is pressed by the mandrel. A wire is fed from the crosshead side, and the panel with the reinforcing material is continuously extruded by being pulled out from the die in synchronization with the extrusion speed of the panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a panel containing a reinforcing material, and more particularly to a floor panel of a room in which office automation equipment is installed and other panel materials requiring strength are manufactured by an extrusion molding method. And a method and apparatus suitable for

[0002]

2. Description of the Related Art Generally, in a room in which office automation equipment is installed, a floor may be formed at a certain height from a floor slab because of the connection wiring of equipment and the like. Such a floor is installed by combining rectangular panels and attaching legs to them so as to have a constant height. Such a floor panel is usually made of an inorganic material, and is disclosed in JP-A-1-26335.
As seen in Japanese Patent Publication No. 7, for example, a concrete material is used, and it is common to mold this into a predetermined shape with a panel mold of a prescribed size.

However, since a large amount cannot be produced by the mold forming method, a method of continuously forming by an extrusion forming method has been proposed. This is disclosed in, for example, JP-A-63-24620.
As disclosed in Japanese Patent Publication No. 7, a raw material containing cement or the like as a main material is supplied to an extrusion molding machine to continuously mold a predetermined panel.

[0004]

However, according to the conventional molding method, since the panel to be molded uses a material that is weak against tensile stress, it is necessary to set the sectional shape having a large quadratic coefficient of section. However, there is a drawback that the panel has a large sectional structure. Further, in order to prevent the strength from being lowered by setting the molded panel to be thin, it is also proposed to form a composite panel in which metal panels are laminated and integrated as seen in Japanese Patent Laid-Open No. 2-24135. However, there is a drawback that productivity is poor because continuous molding cannot be performed.

The present invention is a panel which can be applied to flooring materials, etc., focusing on the above-mentioned conventional problems, and continuous extrusion molding with a reinforcing material inserted so as to have sufficient strength. It is an object of the present invention to provide a method and a device for manufacturing a panel containing a reinforcing material that can be manufactured.

[0006]

In order to achieve the above object, a method of manufacturing a panel with a reinforcing material according to the present invention is such that a panel molding material is supplied into a container of an extrusion press and a die attached to the container is used. In addition to extruding into a panel shape, a reinforcing material-containing panel is continuously formed by feeding wires and other reinforcing materials into the material extruded from the die in synchronism with the extruding speed and inserting them. is there.

The manufacturing apparatus for a panel with a reinforcing material according to the present invention is mounted in a container of an extrusion molding machine, in which a die hole corresponding to the cross section of the panel to be molded is formed, and the die is loaded into the container. A structure comprising a stem for pressurizing a panel molding material, and a means for feeding out a reinforcing material for feeding a panel reinforcing material such as a wire or a wire mesh into the molding material to be pressed is provided at or behind the die. It is what

[0008]

[Function] The die attached to the container of the extrusion molding machine has a die hole corresponding to the cross section of the panel to be molded.
This is a rectangular cone-shaped cross-sectional passage, and the cross-sectional passage is gradually narrowed so that the extruded molded product has a thin rectangular cross-section corresponding to the panel. The container is filled with panel material, which uses raw materials mainly composed of inorganic materials such as cement, which is produced by a mixer or kneader installed outside the extruder to produce the material billet, or directly. The kneader is used to fill and supply the inside of the container. Therefore, when the panel material is filled in the container and pressed by the stem, a continuous panel having a constant cross section is extruded from the die.

Further, at the die of the extrusion molding machine or at the rear of the die, there is provided a reinforcing material feeding means for feeding a panel reinforcing material such as a wire or a wire mesh into a molding material which is pressurized inside the stem. The reinforcing material can be sent out in synchronization with the extrusion of the molding material, so that the molding material can be molded with the reinforcing material integrally inserted therein. This is because, for example, an insertion hole for a reinforcing material is formed inside the pressure stem or a mandrel attached to the stem, a roller for the reinforcing material such as a wire or a wire mesh is provided inside the crosshead, and the extrusion speed is It can be realized by sending the reinforcing material in synchronization with the. Alternatively, it is possible to form a reinforcing material feeding hole in the die and directly feed the reinforcing material into the molding material in the die from the die.

[0010] If the feeding speed of the reinforcing material and the extruding speed of the panel are not synchronized, molding failure will occur. Therefore, if necessary, a means for drawing the reinforcing material is installed on the outlet side of the molded product, and this drawing means is used for the extrusion speed. It is desirable to move them in synchronization. As a result, accurate synchronization can be achieved.

Since the panel thus formed by extrusion molding is continuously manufactured with the reinforcing material integrated, productivity is improved significantly and a panel having sufficient strength is obtained. To be Since the reinforcing material is integrated and extruded, the panel does not need to be a composite material, and a thin panel having excellent surface properties can be obtained and directly used as a surface material.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the method and apparatus for manufacturing a panel with a reinforcing material according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view of an essential part of an extrusion molding machine which constitutes a panel manufacturing apparatus according to an embodiment, and FIG. 2 is a panel material manufacturing process for supplying a panel molding material to the extrusion molding machine. Is shown.

First, a panel molded by the panel manufacturing apparatus according to the embodiment is made of a hydraulic inorganic material such as cement as a material, and a material billet that can be supplied to an extrusion molding machine is manufactured in advance. As shown in FIG. 2, for example, Portland cement, sulfonated melamine resin, polyvinyl alcohol resin, water and the like are used as raw materials, and these are first stirred and mixed by a mixer 10 at an appropriate ratio. After the mixed state becomes homogeneous, the mixture is fed to the kneading machine 12, where it is kneaded and adjusted so that the kneaded material has a uniform quality. As the kneading machine 12, in addition to the vertical type equipment as shown in the figure, an appropriate kneading machine such as a screw type can be used. The material kneaded by the kneading machine 12 is supplied to the compression molding machine 14 and molded into a material billet 16 that can be loaded into a container of an extrusion molding machine described later.

In the embodiment, since the hydraulic inorganic material is used as the raw material of the raw material billet 16, the raw material billet 16 is manufactured in advance by the above-mentioned process. It is also possible to directly connect to and to fill and supply directly. In addition to the above hydraulic material, a resin material or the like can be used as the panel material, and in such a case, it is desirable to directly fill the container with the resin supply means.

The material billet 16 thus obtained
Is supplied to the panel manufacturing apparatus constituted by the extruder shown in FIG. As shown, the device comprises a container 20 having a loading hole 18 for loading a material billet 16 formed of a hydraulic inorganic material such as cement as described above. This container 2
A die 22 is attached to the front end surface of the die 0, and the die 22 is sandwiched between the die 22 and the end platen 26 so that the die hole 24 is arranged concentrically with the billet loading hole 18 of the container 20. . The die hole 24 of the die 22 has a cross-section that matches the cross-sectional shape of the panel to be formed by the exit hole, and is formed in a rectangular cone shape such that the cross-section expands toward the billet loading hole 18 of the container 20. The material billet 16 is extruded toward the die 22 so that the panel cross section is smoothly formed.

A cross head 28, which is driven by a ram cylinder under pressure, is provided at the rear of the container 20. The cross head 28 has a billet loading hole 1 for the container 20.
The stem 30 protruding toward 8 is integrally attached. A push plate 32 is provided at the tip of the stem 30 and is fitted into the billet loading hole 18 in a close contact state to press the rear end face of the material billet 16 during extrusion molding.

Further, a mandrel 34 is passed through the central portions of the stem 30 and pusher plate 32. The mandrel 34 has a flat cross-section and can move independently of the tip end surface of the pusher 32 so that the mandrel 34 is connected to the base end of the mandrel 34 inside the crosshead 28. A cylinder device 36 containing a piston is provided. Therefore, the mandrel 34 has the stem 3
It can be moved to an arbitrary position or held at a fixed position independently of the pressurizing operation of zero. The mandrel 34 is formed in a flat cross section that is substantially similar to the cross section of the exit of the die hole 24. The mandrel 34 is held in the center of the billet loading hole 18 of the container 20 in a state of protruding from the pressing plate 32 at the time of molding, and the tip end thereof is held. The surface faces the die hole 24.

The mandrel 34 is for inserting a reinforcing material such as a wire into a molded product at the time of panel extrusion molding. Therefore, the mandrel 34 is provided with a reinforcing material insertion hole 38. In the embodiment, a plurality of wires 40 are supplied as a reinforcing material, a plurality of insertion holes 38 are provided at equal intervals along the flat direction of the mandrel 34, and the insertion holes 38 are opened at the tip end surface and passed through the die hole 24. It is possible to send it out. Further, on the base end side of the mandrel 34, the insertion hole 38 reaches the wire insertion port 42 that is formed by bending toward the inside of the crosshead 28. Inside the crosshead 28, the mandrel 34
In order to feed the reinforcing wire 40 inside the insertion hole 38 of
The feed roller means 44 around which the reinforcing wire 40 is wound is installed, and the wire 40 to be fed is fed out into the insertion hole 38 from the wire insertion port 42 opened on the lower surface of the mandrel 34.

The reinforcing wire 40 fed from the roller means 44 is passed through the wire insertion port 42 and the mandrel 34.
It is supplied to the insertion hole 38 inside, passes through the die hole 24 from the tip opening of the mandrel 34, and is drawn out through the exit hole 46 of the end platen 26. If the panel pushing speed and the wire drawing speed are not synchronized during this drawing, the reinforcing wire 40 and the panel material will be separated. Therefore, the wire drawing device 4 is provided on the exit side of the end platen 26.
8 are deployed. This has a plate 50 connecting the ends of the wires 40, and a rod 52 for moving the plate 50 along the wire axis. The rod 52 is driven by hydraulic cylinder means or the like (not shown). I am trying. The withdrawal speed of the plate 50 by the rod 52 is drive-controlled so as to move in synchronization with the extruding speed of the stem 30 and the like in synchronization with the extruding speed of the molded product.

A roller conveyor 54 is installed on the exit side of the end platen 26 so that the molded product can be conveyed.

A panel with a reinforcing material is manufactured by the panel manufacturing apparatus configured as described above. The material billet 16 for panel molding is supplied into the container 20 of the extrusion press and is passed through the die 22 attached to the container 20. In addition to being extruded into a panel shape, the reinforcing wire 40 is extruded into the material extruded from the die 22 in synchronism with the extruding speed to be inserted therein, whereby the reinforcing material-containing panel is extruded.

That is, the material billet 16 is prepared so that the molding materials for the panel can be mixed, kneaded and loaded into the extrusion molding machine.
Are formed by a molding device. The material billet 16 is transferred to the front surface of the container 20 by the billet supply device attached to the extrusion molding machine and the preparation is completed. In the extrusion molding machine, the stem 30 is moved forward, the material billet 16 is fed into the loading hole 18, and the mandrel 34 that has been in the retracted state is projected from the pressing plate 32 to face the die 22. Then, the feed roller means 44 of the wire 40 is driven to feed the wire 40, penetrate the material billet 16 loaded in the container 20 and project it from the exit hole 46 of the end platen 26, and the wire tip is drawn to the drawing device 48. Connect.

When the wire 40 has a small diameter and cannot penetrate the material billet 16, the material billet 16 is previously prepared.
Is formed in a half-divided state, the row of wires 40 is sandwiched and loaded in the container 20, and the wires 40 are enclosed in the material billet 16.

After such an operation, a forming operation is started, in which the stem 30 is extruded by driving the cross head 28 by the ram cylinder, and the material billet 16 is pressed toward the die 22 by the pressing plate 32 at the tip. It is carried out by At this time, the mandrel 34 is adjusted to hold the home position. By this pressurizing operation, the material billet 16 in the container 20 is formed into a shape set by the die hole 24, formed into a rectangular flat plate shape, and discharged. Further, since the wire drawing device 48 is moved in synchronization with the panel discharge speed to move the wires 40 at the same time, the wires 40 are inserted inside the continuously extruded molded panel, and thereby the molded panel is reinforced. The material is continuously molded in the state of being filled.

According to such an embodiment, in the panel 60 formed by extrusion molding, as shown in FIG. 3A, the reinforcing wires 40 are provided inside the panel 60 at equal intervals along the width direction. The structure is arranged, and the strength improving effect is enhanced particularly when a material that is weak in tensile stress is used as the panel material. In particular, the panel 6 with reinforcements inserted at the same time
Since 0 can be continuously molded, the productivity is extremely high.

Although the wire 40 is used as the reinforcing member in the above embodiment, a wire net 62 can be used as the reinforcing member. In this case, as shown in FIG. A reinforcing panel 64 having a sandwich structure in which the metal net 62 is arranged in the middle layer is obtained. In this case, the material billet 16 is formed in a half-divided state, and the wire net 62 is inserted into the container so as to be sandwiched from the upper and lower surfaces.

In the above embodiment, the reinforcing material is sent out through the mandrel 34 which is inserted into the stem 30, but this is as shown in FIGS. 4 (1) and 4 (2).
The seal surface between the container 20 and the die 22 may be used to supply (FIG. 1 (1)), or the die 22 may be directly formed with an insertion opening for supply (FIG. 2)). With this configuration, the configuration of the reinforcing material supply device is simplified.

In the above embodiment, the material billet 16 is formed by the billet forming device so that it can be loaded into the container 20, but the kneading machine 12 directly feeds the container 2 into the container 2.
It is possible to carry out filling by filling the 0 loading hole 18 with pressure. With this configuration, continuous panel molding becomes possible,
Moreover, there is an advantage that the procedure for incorporating the reinforcing material is facilitated.

As the material billet 16, one which can be plastically deformed at room temperature is used. For example, a hydraulic inorganic material composed of cement, calcium silicate, gypsum, or the like, or
It is possible to use a mixture of an aggregate such as river sand, an amino acid resin such as urea resin, and a curing agent such as ammonium chloride in an appropriate ratio.

[0031]

As described above, according to the present invention,
The panel molding material is supplied into the container of the extrusion press and extruded into a panel shape through the die attached to the container, and the wire and other reinforcing materials are fed into the material extruded from the die in synchronization with the extrusion speed. A method of extruding a panel with a reinforcing material by inserting it into a container, and a die with a die hole corresponding to the cross section of the panel to be formed attached to the container of the extrusion molding machine, and the panel forming in the container. A panel reinforcing member such as a wire or a wire mesh is provided in the die or at the rear of the die, which comprises a material supplying means for filling and supplying the material and a stem which is inserted into a container and presses the material. A panel that can be applied to floor materials, etc. One continuous molding becomes possible effects at sufficiently state strength gave a is obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts of a device for manufacturing a panel with a reinforcing material according to an embodiment.

FIG. 2 is an explanatory diagram of a forming process of a material billet.

FIG. 3 is a partially cutaway perspective view of a molded panel.

FIG. 4 is a cross-sectional view of essential parts showing another embodiment of the method for supplying the reinforcing material.

[Explanation of symbols]

16 material billet 18 Billet loading hole 20 containers 22 dice 24 die hole 26 End Platen 28 crosshead 30 stems 32 pusher 34 Mandrel 38 Reinforcing material insertion hole 40 Reinforcing wire 42 Wire insertion port 44 feed roller means 46 Exit Hall 48 wire drawing device 50 plates 52 rod 60 panels

Claims (2)

[Claims] 1. A panel molding material is fed into a container of an extrusion press to be extruded into a panel shape through a die attached to the container, and a wire or other reinforcing material is extruded into the material extruded from the die. A method for manufacturing a panel with a reinforcing material, characterized in that a panel with a reinforcing material is continuously molded by sending it out and inserting it in synchronism with. 2. A die having a die hole attached to a container of an extrusion molding machine and having a die hole corresponding to a panel cross-section to be molded, and a stem for pressurizing a panel molding material loaded in the container. An apparatus for manufacturing a panel containing a reinforcing material, wherein the die or a rear part thereof is provided with a feeding means for a reinforcing material for feeding a panel reinforcing material such as a wire or a wire mesh into a molding material to be pressed.