JPH0741608B2 - Method and device for manufacturing reinforced mortar molded product - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method and an apparatus for producing a cement mortar molded article suitable for building materials and the like.

[Conventional technology]

In general, cement mortar molded products are those that automatically press-mold by performing water squeezing at the same time as compression.
No. 0209 is known.

Although such a molded product is sufficient as a roofing material, it is not suitable as a flooring material that receives weight because it has insufficient bending strength as compared with an aluminum alloy and asbestos board. Materials made of aluminum alloy are expensive in terms of materials and processing, and asbestos boards are also expensive in terms of materials and processing, and have problems such as the need for cutting.

When a thin plate-shaped reinforcing member is mixed as a floor material, it can be used as a floor material, but the cement product has particularly insufficient tensile strength. By the way, in the computer room, office computer, office room floor with a personal computer, etc., it is necessary to provide piping equipment or passages for circulating cold or warm air in order to control the temperature of air such as cooling or heating and to clean the air. As shown in FIG. 1, there was a floor material having a double upper floor structure in which a floor material molded product b was placed on a thin plate stand a supported at a corner. It was also found that this flooring material can be sufficiently used as a flooring material by reinforcing the lower surface of the molded product with a reinforcing net, a reinforcing member made of a thin plate-like reinforcing plate, or the like.

In order to make the upper surface of the molded product look smooth and look good, this floor material should be formed on a smooth surface, or a decorative plate such as P tile should be bonded to the upper surface with an adhesive. There was also.

[Problems to be Solved by the Invention]

Therefore, an object of the present invention is to produce a cement mortar molded article with sufficient bending strength even in the case of a double upper floor structure by speeding up and automating rapidly and efficiently in large quantities, and also in terms of appearance. Moreover, it is an object of the present invention to provide a method and an apparatus for manufacturing a reinforced mortar molded product that can reduce the production cost.

[Means for Solving the Problems]

Supply cement mortar material to the molding die, place a thin plate-shaped reinforcing member on the material, then engage the upper and lower molds and press the cement mortar material from above the reinforcing member with the upper mold, In the method of manufacturing a reinforced mortar molded product which is molded while squeezing water, the reinforcing member is first supplied to the molding surface of the upper mold provided with the magnetic force, the vacuum suction force, or the suction means by the combined use of the magnetic force and the vacuum suction force. , An inner side of a mortar molded product having an upper mold for sucking the reinforcing member lowered and placed on a material, and having a smooth surface by the pressure molding surface of the upper mold or the lower mold on at least one of the upper surface or the lower surface Another object of the present invention is to provide a method for manufacturing a reinforced mortar molded article, characterized in that the above-mentioned reinforcing member is interposed between the two.

The present invention also provides a device for producing a reinforced mortar molded product, which press-molds a cement mortar material supplied in one of the upper mold and the lower mold while water is squeezed, in which at least one of the upper mold and the lower mold is pressed. A smooth surface is provided on the molding surface, and a pressurizing and molding surface of the upper die is provided with a suction / conveyance device for a magnetic member, a vacuum suction force, or a reinforcing member capable of using both magnetic force and vacuum suction force. By providing a reinforcing member supply device for supplying a reinforcing member to a pressure-molded surface, and providing the reinforcing member on one side inside the pressure-molded product, a device for producing a reinforced cement mortar molded product is provided. It is intended to achieve the above object.

〔effect〕

As described above, the upper mold, which is a pressure means for pressure molding and is also used as a means for conveying a molded product, is also used as a means for supplying a reinforcing member. Therefore, a relatively simple mechanism is sufficient. A complicated process can be processed. For example, a durable flooring material, such as a flooring material having a double upper floor structure, can be formed more quickly and inexpensively, and a smooth surface can be formed on at least one of the upper surface and the lower surface. It was possible to provide a floor material that looks good.

〔Example〕

Various features of the present invention will be described in more detail below with reference to the accompanying drawings showing embodiments of the present invention.

2 to 8 show a first embodiment of the present invention. The lower mold 1 is composed of a lower mold body 3 supported by a support base 2, and an upper end molding surface 4 communicates with a water squeezing chamber 6 through water squeeze holes 5, and the molding surface has a dewatering cloth, a dewatering cloth supporting wire mesh, Alternatively, a filter plate assembly 7 obtained by adding a draining iron plate to these is attached. The support base 2 can slide left and right on a sliding surface 11 by a piston rod 10 provided on a piston 9 housed in a cylinder 8. A pedestal 15 is provided on the right side of the lower mold 1, and a support pedestal 2 is provided.
Is fixed to the upper end of a piston rod 14 of a piston 13 that moves up and down in a cylinder 12 that can slide left and right together with a lower die, and a receiving plate 16 is placed on the piston rod 14.

The molding press 17 is an example of a model in which the upper mold body 18 moves up and down, and is a cylinder attached to a machine frame (not shown).
A support block 22 is fixed to a lower end of a piston 21 which slides in a cylinder chamber 20 of 19 and moves up and down, and an upper mold body 18 is fixed to a lower surface of the support block 22. A mold 23 is arranged around the upper mold body 18, is supported by a lower end of a piston rod 25 attached to a piston 24, and is housed in a lower end of the piston 21 or a cylinder 23A attached to a support block 22.
4 moves up and down by sliding in it.

The upper mold body 18 is positioned in the horizontal direction, the lower mold 1 moves left and right, and the upper mold body 18 relatively reciprocates horizontally between the lower mold 1 and a position aligned with the pedestal 15. Is done,
Further, by the operation of the piston 21, it is possible to move between the lower position where the lower die 1 performs the molding operation and the upper position where the conveyance is performed.
At the position where the upper die body 18 and the lower die 1 are aligned, the upper die body 18
There is a material supply device 26 on the left side of the, and a weighing and supply frame body 29 connected to the lower end of a material supply port 28 provided at the lower end of the material supply chamber 27
Has a horizontal cross-sectional shape that is open at the top and bottom and corresponds to the planar shape of the molded product, and is attached to the outer end of the piston rod 32 attached to the piston 31 housed in the cylinder 30, and the sliding surface 33 is attached to the material supply port 28. It reciprocates between the aligning position and the material supplying position which is vertically aligned with the upper surface of the material receiving position of the lower mold 1. Looking into the magnet 37 for attracting reinforcing members on the upper mold surface,
A reinforcing member supply device 33 is arranged on the right side of the upper mold body 18. This supply device 38 is one in which a carrier 42 is provided at the tip of a piston rod 41 provided on a piston 40 that slides in a cylinder 39. The reinforcing member 35 arranged on the carrying table 42 has perforations evenly distributed in the metal plate, and the projections generated by the perforations are shown as being shaped so as to bite into the mortar molded product and increase the grip. However, it is clear that a metal net may be used. Further, the cylinder 39 is attached to the lower end which is the tip of the piston rod 45 of the piston 44 which slides in the cylinder 43 attached to the machine frame (not shown) to which the cylinder 19 is attached, so that the carrier table 42 can move up and down. .

The manufacturing process of the molded product according to the first embodiment of the present invention shown in FIGS. 2 to 8 will be described below. In FIG. 2, the upper mold body 18
Is at a position vertically aligned with the molded product receiving table 15 on each side of the lower mold 1, and the material is prepared in the material measuring and supplying frame body 29. The carrier 42 that supports the reinforcing member 35 is the upper mold body 18
It is on the right side of the position vertically aligned with, and is ready to be supplied to the upper mold. At this time, the piston 40 in the cylinder 39 is at the right end and the piston 44 in the cylinder 43 is at the lower end. First,
As shown in FIG. 3, the material metering / supply frame body 29 is moved to the right and moved to a position vertically aligned with the lower mold 1, the upper and lower openings of the material metering / supply frame body 29 are opened, and a fixed quantity of material 34 is obtained. It falls on the molding surface of the lower mold 1. On the other hand, the upper mold body 18 is at the upper end position, and the piston 40 first moves to the left, the conveying plate 42 puts a reinforcing member on it, reaches the lower alignment position of the upper mold body 18, and the piston 44 moves further upward. When the reinforcing member 35 is lifted up to a position in contact with the upper die molding surface, a magnet mounted flat on the upper die molding surface without any unevenness (in the case of an electromagnet, it may be excited at that time) attracts this. . Next is the fourth
When the support base 2 is moved to the right as shown in the figure, the lower mold 1 is placed at a position vertically aligned with the upper mold body 18, and the reinforcing member 35, for example, a reinforcing net is placed on the material 34. Further, although the support base 2 of the lower mold 1 moves to the right and reaches a position where it is vertically aligned with the upper mold, the reinforcing member transport plate 42 returns to the supply position. Next, as shown in FIG. 5, the upper die 17 is lowered by the operation of the piston 21 to perform compression molding, and at the same time water is forced to be forced to complete the molding. During compression, water is squeezed through the reinforcing net 35 to achieve uniform molding.The net has a smooth appearance without any uneven surface in the molded product. It is embedded on the installation side of the smooth surface of the mortar molded product on which the smooth surface is formed. The lower mold body 18 may be lowered and then the mold may be vibrated up and down to start the compression and water squeezing so that the reinforcing member 35 may slightly penetrate into the material. In addition, even if a grain is formed on the lower surface side of the mortar molded article by a dehydrating cloth of the filter plate assembly 7 communicating with the water squeezing holes 5 for pressurizing and squeezing water by the upper mold and the lower mold during the pressure molding. When using a mortar molded product as a flooring material, there is no problem because the cloth is not touched directly to the eyes after laying. On the other hand, the upper die body 18 is lowered by the work of the piston 21, and the molding work is started. After the completion of molding, the upper mold body 18 is first raised while continuing the suction as shown in FIG. 6, and then the piston 9 is operated to move the support base 2 to the left side to form the molded product 35, that is, as shown in FIG. The pedestal 15 is moved to a position aligned with the upper mold body 18, and the lower mold 1 is moved to a position where the material for the next molding is received from the supply device 26. No change is shown in the state of the reinforcing member supply device in FIGS. 5, 6, and 7. Therefore, as shown in FIG. 8, various temporal phases can be set, but in the upper mold body 18 and the pedestal 15, the mold frame 23 around the upper mold body 18 is raised to move the molded product 36 to the upper mold. The receiving plate on the receiving table 15 separated from the forming surface by gravity.
The material is dropped and placed on 16, the piston 13 is operated to lower the pedestal 15, and the material 34 for the next molding is supplied to the lower mold 1 as in FIG. Although the reinforcing member 35 is prepared in the reinforcing member supply device 38, it is arbitrary as to which stage of FIG. 5 to FIG. 8 the process is performed. This completes one cycle, and then the molded product on the pedestal 15 is in a state of being conveyed by a conveying device (not shown). The reinforcing member supplying device 38 for the reinforcing net as a reinforcing member may be, for example, not only the embodiment described below, but also a system for supplying horizontally in a direction orthogonal to the paper surface and slightly upward and downward. In that case, the reinforcing member supply device 38 is the second one of the lower mold 1 on the paper surface.
It may be provided at a position aligned with the positions shown in FIGS. 3 and 4, or may be provided at a position aligned with the positions shown in FIG.

Next, FIGS. 9 to 15 show a second embodiment of the present invention.
The lower mold 101 is a mortar molded product supported by a supporting base 102, and a mold 104 is movably arranged around a lower mold main body 103 which is to form a smooth surface on the lower surface, and is attached to the lower end of the mold 104. The cylinder 106 that houses the piston 105 is supported by the base 107 together with the support 104, and the lower die body 103 does not move. On the right side of the lower die, there is provided a pedestal 109 fixed to the upper end of a piston rod 115 provided on a piston 114 that moves up and down in a cylinder 113 which is also positioned, and a receiving plate 111 is placed on the pedestal 109. is there.

The molding press 116 is an embodiment of a type in which an upper die 117 moves vertically and horizontally, and a piston 122 that slides up and down in a cylinder chamber 121 of a cylinder 120 attached to a machine frame (not shown). A table 123 that supports the lower end of the support table 123 is fixed, and a piston that slides in a cylinder 125 provided on the right side of the support table 123 is provided on one side of a support block 124 that is guided to horizontally slide the support table 123. 126 piston rod 12
Fix one end of 7. The upper mold 117 is attached to the lower surface of the support block
Is fixed, and is horizontally reciprocated between a position aligned with the lower mold 101 and a position aligned with the pedestal 109. Also, the operation of the piston 122 causes the lower position to perform the molding operation together with the lower mold and the upper and lower sides for carrying. You can move between positions. At a position where the upper die 117 and the lower die 101 are aligned, there is a material supply device 128 on the left side of the upper die 117, and when the raw material supply hole 129 is aligned with the lower die 101, the cross section is substantially aligned with the lower die. The bottom surface is opened and closed by a bottom plate 132 attached to the tip of a piston rod 131 that expands and contracts by a hydraulic cylinder 130.
In this embodiment, unlike the previous embodiment, the upper mold 117 is attached to the lower end thereof with a dehydration cloth, a dehydration cloth supporting wire mesh, or a filter plate assembly 133 formed by adding a draining iron plate to these, and the entire lower surface is vacuumed. Suction holes 134 are distributed and drilled to allow a horizontally extending guide hole or guide chamber 135 to communicate with the outside of the upper die 117. The guide hole 135 is connected to a water collecting pipe 136 connected to a vacuum blower (not shown).

The reinforcing member attracting magnet 139 is seen on the molding surface, and the reinforcing member supply device 140 is arranged on the right side of the upper mold body 117. In this supply device 140, a carrier table 144 is provided at the tip of a piston rod 143 provided on a piston 142 that slides in a cylinder 141. A reinforcing member 138 is placed on the carrier table 144. Further, the cylinder 141 is provided, for example, on the support table 123 on the right side of the cylinder 125, and is attached to the free end of a piston rod 147 attached to a piston 146 that slides up and down inside thereof.

The manufacturing process of the molded article of the second embodiment of the present invention will be described below. In FIG. 9, the upper mold 117 and the lower mold 101 are vertically aligned, the material 137 is supplied to the material supply device 128, and the reinforcing member supply device 140 is at the position where the transfer table 144 is moved to the left side.
A reinforcing member 138 is placed on the transfer table 144 at a position vertically aligned with the molded product receiving table 109. In FIG. 10, when the hydraulic cylinder 125 is operated to move the raw material supply hole 129 to a position vertically aligned with the lower die 101, the upper die 117 simultaneously moves to a position vertically aligned with the pedestal 109, that is, the reinforcing member 138. It reaches a position that is aligned with the carrying table 144 to be placed. Next, in FIG. 11, the bottom plate 132 of the material supply device 128 is moved to open the bottom of the material supply chamber 129 and the material 137 is dropped toward the lower mold 101. Around the same time, the upper mold 117 is the piston of the reinforcing member supply device 140.
By operating 146, the reinforcing member 138 placed on the carrier table 144 is lifted and brought into contact with the lower surface of the upper die 117 to receive the attractive force of the magnet 139. In FIG. 12, the upper die 117 supporting the reinforcing member is moved to the left side to reach the position vertically aligned with the lower die 101, and the carrier table 144 is moved to the right side. In FIG. 13, the upper mold is lowered to form the molding material 1 on the lower mold main body 103.
The reinforcing member 138 is placed and pressed on the 37, and the upper and lower molds are engaged with each other to perform compression molding while squeezing water. 14th
The figure shows the completion of molding and the lower mold 104 moved downward. Next, up to FIG. 15, the upper mold 117 supports the molded product by vacuum suction and ascends, and then while moving to the right by the operation of the piston 126, the molded product support 109 rises and the upper mold The molded product 139A is received from the upper mold 117 by stopping the vacuum suction at a point where it is just in contact with the molded product supported by 117. Simultaneously with the movement of the upper die 117 to the right side, the material supply device 128 also moves to the right side and is aligned with the lower die body 103 in the vertical direction, so that the material is already supplied to the lower die body 103. And the next molding cycle has already started. In this embodiment, unlike the above-mentioned embodiment, the filter plate assembly 1 is attached to the pressure molding surface of the upper mold 117 during pressure water squeezing.
The dewatering cloth 33 forms a grain on the upper surface of the mortar molded product, and the reinforcing member 138 intervenes inside the mortar molded product on the side where this grain is installed to reinforce the mortar molded product. A smooth surface is formed by the main body 103, and the texture formed on the upper surface of the mortar molded product is the same as that of the adhesive when a decorative plate such as P tile is adhered to the upper surface of the mortar molded product by using an adhesive. It can be used as a pool space, and the contact area of the mortar molded product with respect to the P tile is increased, which is convenient for effectively exerting the adhesive force.

As the thin plate-shaped reinforcing member, a reinforcing net and a reinforcing plate can be considered. As the reinforcing net, synthetic fibers such as nylon, tetron, polypropylene, teflon, acrylic, polyvinyl, polyvinylidene, polyester, glass fiber,
A fiber net such as carbon fiber or a metal net such as stainless steel can be used. The reinforcing plate is, for example, a plate obtained by stamping out a plurality of holes that are evenly distributed on a metal plate by stamping to form a chevron-shaped protrusion on one surface. Such movement is allowed, and at the same time, if the surface with the protrusions is placed so as to face the inside of the molded product, the joining of the reinforcing member to the mortar material is ensured.

[Brief description of drawings]

FIG. 1 is a schematic view showing a state in which a molded article manufactured according to the present invention is used as a floor material, and FIGS. 2 to 8 are sectional views showing an embodiment of the apparatus of the present invention for carrying out the method of the present invention. It is the schematic diagram shown and is process drawing which shows 1st Example of the method of this invention. 9 to 15 are schematic cross-sectional views showing another embodiment of the apparatus of the present invention for carrying out the method of the present invention, and are process diagrams showing the second embodiment of the method of the present invention. 1 ... lower mold, 2 ... support base, 3 ... lower mold body, 7 ... filter plate assembly, 8 ... cylinder, 15 ... stand, 17 ... molding press, 18 ... upper mold body , 26 …… Material supply device, 37 ……
Magnet, 38 ... Reinforcement member supply device.

Claims (6)

[Claims] 1. A cement mortar material is supplied to a molding die,
Reinforcing mortar that mounts a thin plate-shaped reinforcing member on the material, then engages the upper and lower molds, presses the cement mortar material from above the reinforcing member with the upper mold, and molds it while squeezing water In the method of manufacturing a molded product, the reinforcing member is first supplied to the molding surface of the upper mold provided with the suction means by the magnetic force, the vacuum suction force, or the combined use of the magnetic force and the vacuum suction force, and the upper mold for sucking the reinforcement member is lowered. Characterized in that the reinforcing member is placed on one side inside the mortar molded product having a smooth surface formed by the pressure molding surface of the upper mold or the lower mold on at least one of the upper surface and the lower surface. And a method for producing a reinforced mortar molded article. 2. The reinforcing member is horizontally moved to the lower surface of the upper mold before the lower mold starts descending at the time of molding, and the reinforcing member is slightly lifted at the alignment position to be transferred to the upper mold. The method for producing a reinforced mortar molded article according to. 3. A device for producing a reinforced mortar molded product, which molds cement mortar material supplied to one of an upper mold and a lower mold while squeezing water under pressure, wherein at least one of the upper mold and the lower mold is pressure-molded. A smooth surface is provided on the surface of the upper die, and a pressurizing and molding surface of the upper die is provided with a suction conveyance device of a reinforcing member capable of magnetic force, vacuum suction force, or both magnetic force and vacuum suction force. An apparatus for manufacturing a reinforced mortar molded product, characterized in that a reinforcing member supply device for supplying a reinforcing member is provided, and the reinforcing member is provided inside one side of the mortar molded product. 4. The reinforced mortar molded product according to claim 3, wherein a vacuum suction device is provided on the pressure molding surface to suck and convey the reinforcing member when the water squeezing surface is not formed on the upper mold. Manufacturing equipment. 5. The device for supplying a reinforcing member to a pressure molding surface,
4. The apparatus for manufacturing a reinforced mortar molded product according to claim 3, wherein a transport table reaching a position vertically aligned with the pressure molding surface is provided so as to be movable in the horizontal direction. 6. The apparatus for manufacturing a reinforced mortar molded article according to claim 3, wherein the carrier table vertically aligned with the pressure molding surface is provided so as to be slightly movable vertically.