JPH0747521A - Method and apparatus for producing net like reinforcing material-containing extrusion molded object - Google Patents

Abstract

PURPOSE:To certainly embed a net like reinforcing material in a raw material inferior to flowability by a method wherein the net like reinforcing material is set to the interior of a mold so that the leading end part thereof is allowed to protrude into the mold from the opening end of a guide member before a raw material is sent into the mold under pressure. CONSTITUTION:In discharging an extrusion molded object wherein a net like reinforcing material is embedded in a raw material from the outlet O of the molding space part of a mold 23, the net like reinforcing material provided to the inlet 1 of the molding space part of the mold 23 is set to the mold in such a state that the leading end part of the net like reinforcing material is allowed to protrude into the molding space part 23c of the mold 23 from the opening part of a guide member 35 before the raw material is pressed by a raw material supply means. Next, the raw material is supplied to both surfaces of the net like reinforcing material and the net like reinforcing material is drawn out of the guide member 35 while pressed by the raw material and the net like reinforcing material drawn into the raw material and the raw material surrounding the reinforcing material are molded into a predetermined shape within the molding space part 23c.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for producing an extruded product containing a net-like reinforcing material by embedding a net-like reinforcing material in a ceramic material such as a cement composition and a plastic synthetic resin and extruding the same. Regarding the device.

[0002]

2. Description of the Related Art Recent building materials for outer walls are produced by an extrusion molding method having high productivity in order to mass produce high quality building materials. In this extrusion molding, materials with poor fluidity such as ceramic materials such as cement compositions and plastic resins are pressed into a mold molding section and extruded to form an extrusion molded article having a predetermined shape. An extruded body can be formed easily.

However, compositions such as cement, which is a material for building materials for outer walls, generally have extremely high strength against compressive force, but are not so strong against pulling and bending, and bending force works. It is not always the preferred material to use as the member. For example, it is not suitable for use as an outer wall material at the top of a high-rise building that is exposed to strong winds or gusts and receives bending force due to wind pressure. For this reason, recently
Methods and devices have been developed that make a building material stronger against pulling and bending by inserting a reinforcing material inside the building material. For example, as shown in FIG. 8, the raw material fed from one extruder 1 is once separated into two paths 3 and the raw material is fed into the mold forming portion 5 from both sides of the mold forming portion. In some cases, the extrusion characteristics such as the extrusion pressure and the flow rate of the raw material are kept uniform. By thus making the extruded state uniform, the insertion position and the like of the net-shaped reinforcing member 7 are kept stable (see Japanese Patent Application No. 2-249216 of the present applicant). Reference numeral "8" in the drawing is a guide member.

[0004]

However, in such a conventional method and apparatus, since the raw material is press-fitted from the side surface of the net-shaped reinforcing body, the net-shaped reinforcing body may be pushed by the high-pressure raw material. A material having low rigidity such as a knitted product may not be embedded in the raw material in a flat state and may not be arranged so as to extend over the whole when the extrusion molded body is completed. For this reason, there is a possibility that the net-shaped reinforcing member cannot be embedded unless it has a considerable strength.

Further, in the conventional apparatus, since the position for controlling the flow rate of the raw material and the position for inserting the net-shaped reinforcing member are relatively distant from each other, the raw material having passed through the two paths is combined with the net-shaped reinforcing member. When doing so, the flow rates of the two raw materials may not be uniform, and the net-like reinforcing body may not be flatly embedded in the raw material.

At present, in order to reduce the weight of a building material, it is general practice to form one or more rows of hollow portions in the width direction of the building material. When molding a building material with a hollow inside as described above, the thickness of the part where the raw material flows becomes smaller, so the rate of change in the flow rate of the raw material increases, which makes it difficult to control the flow rate and other factors. There is also a problem that becomes. Since the wall thickness of the building material in the vicinity of the hollow portion is naturally thin, there is a high possibility that peeling will occur at the boundary of the net-like reinforcement, and the allowable error range of the insertion position of the reinforcement will be extremely small.

The present invention, which has been made in view of the above-mentioned problems, has the advantage that, even when one or a plurality of net-shaped reinforcing members are inserted inside the extrusion molded body, The flow velocity distribution can be made uniform, and it can be smoothly and surely placed at a predetermined position in the extrusion-molded body formed by the mold molding section.
Moreover, it is an object of the present invention to enable continuous insertion of the net-shaped reinforcing body.

[0008]

The method of the present invention for achieving the above-mentioned object is a molding space of a mold molding section for molding a fluid raw material continuously fed under pressure from a raw material supply means into a predetermined shape. Along with the introduction from the part inlet, a plurality of net-shaped reinforcing materials are also supplied into the molding space of this mold forming part, and an extrusion molded body in which the net-like reinforcing material is embedded in the raw material is used for the mold forming part. In the method for manufacturing an extruded body containing a net-shaped reinforcing material, which is configured to be discharged from the outlet of the molding space, before the raw material is pressed by the raw material supply means, it is provided at the inlet of the molding space of the die molding unit. An initial setting step of setting a state in which a tip end portion of the net-shaped reinforcing member is projected into a molding space of the mold-forming portion from an opening of a guide member for guiding the net-shaped reinforcing member from the outside into the mold-forming portion. When, The front side raw material of the reinforcing body and the back side raw material of the net-shaped reinforcing body are supplied to the front and back surfaces of the net-shaped reinforcing body projected from the opening of the guide member at substantially the same flow rate, and the net is formed by these raw materials. A net-shaped reinforcing body encapsulating step in which the shape-reinforcing body is drawn while flowing out from the guide member while being pinched, and immediately after the end of the net-shaped reinforcing body encapsulating step, in the molding space part of the mold forming part,
A molding step in which the net-shaped reinforcing member drawn into the raw material and the raw material surrounding the net-shaped reinforcing body are molded into a predetermined shape to form an extrusion molded body in which the net-shaped reinforcing material is embedded in the raw material, The method for producing an extruded product containing a net-shaped reinforcing material, comprising:

The device of the present invention for achieving the above object is
A flow rate control means for the raw material into a molding space of the mold molding section from a mold molding section for molding the raw material of the extruded body which is a fluid into a predetermined shape, and a connecting pipe connected to the mold molding section. And a plurality of net-like reinforcing bodies that are mounted in the molding space of the mold molding unit and that enhance the strength of the extruded body independently from each other by externally A plurality of guide members for guiding inside the molding space of the mold forming part from the mold forming part, and a net shape for discharging the extrusion molded body in which the net reinforcing material is embedded from the molding space part outlet of the mold forming part. In the apparatus for manufacturing an extrusion-molded body containing a reinforcing material, the mold forming section includes a taper surface section in which a raw material passage is gradually narrowed and formed in a predetermined range in a flow direction of the raw material from an inlet on the inner surface of the molding space section, and a taper surface section. Flat connected to Is formed, and in the molding space portion corresponding to the portion where the tapered surface portion is formed, a gap portion for flattening and passing the net-shaped reinforcing member and an outer surface toward the opening portion at the tip of the gap portion are formed. A plurality of guide members having tapered surfaces formed in a taper shape are arranged in parallel, the raw material supply means divides the inside of each connection pipe into a plurality of parts, and a flow rate control means is provided for each of the divided passages. This is an apparatus for manufacturing an extruded body containing a net-shaped reinforcing material.

The raw material supply means is preferably provided with a second flow rate control means for controlling the flow rate of the raw material flowing out from the molding space portion in the molding space portion of the mold molding portion. More preferably, it has a distribution plate extending from the guide member into each of the connecting pipes, and a flow rate control means is provided for each of the passages divided by the distribution plate.

[0011]

In the method of the present invention, before the raw material is fed under pressure by the raw material supply means and is fed into the molding space of the mold forming section, the tip of the net-shaped reinforcing member is moved from the opening end of the guide member to the mold forming section. When set in a state where it protrudes into the molding space,
The net-like reinforcing material is drawn into the molding space of the mold molding unit by the raw material itself continuously fed from the raw material supply means. Since the timing of withdrawing the net-shaped reinforcing member is synchronized with the supply of the raw material, even the net-shaped reinforcing member having a low rigidity can be continuously and reliably inserted in a stable state.

Further, the net-shaped reinforcing member guided into the molding space of the mold forming section through the gap in the guide member installed in the molding space of the mold forming section is a raw material by the mold forming section. Is inserted into the raw material immediately before it is formed into a predetermined shape. Therefore, even if the raw material has poor fluidity, when the net-shaped reinforcing member enters the raw material, no large force is applied to prevent the net-shaped reinforcing body from entering the raw material, and the raw material does not flow into the gap portion of the guide member.

With respect to the net-shaped reinforcing material projected into the molding space, the raw materials are supplied to the front and back surfaces at substantially the same flow rate, so that the net-shaped reinforcing material can be smoothly drawn out, and the inside of the extrusion molded body can be smoothly drawn. The net-shaped reinforcement can be reliably and continuously inserted into the specified position of the, and even the net-shaped reinforcement of low rigidity material is embedded in the raw material in a flat state, and the net-shaped reinforcement is completed when the extrusion molded body is completed. The reinforcement is arranged so as to extend over the whole.

Further, in the apparatus of the present invention, on the inner surface of the die molding portion, within a predetermined range from the inlet of the molding space portion in the flow direction of the raw material,
Since the tapered surface portion is formed so as to gradually narrow the raw material passage, the raw material flows along the tapered surface portion to pressurize the net-shaped reinforcing member from both the front and back surfaces, thereby improving the unity with the net-shaped reinforcing member.

Further, if each connecting pipe is divided into a plurality of parts and a flow rate control means is provided for each of the divided passages, even if a plurality of net-shaped reinforcing bodies are inserted into the extruded molded body, the pressure-feeding is performed. The raw material is divided into a plurality of layers and supplied into the mold forming section. Since the flow rate and flow velocity of the raw material of each layer are adjusted by the flow control means corresponding to each, the flow rate or flow velocity of the raw material of each layer is the same, the flow velocity distribution of the raw material in the mold forming part is also uniform, and a net shape is obtained. When the reinforcing body is smoothly pulled out to form the extrusion molded body, the net-shaped reinforcing body can be surely inserted into a predetermined position inside thereof. This insertion can be performed continuously, and productivity is also improved.

Particularly, when the second flow rate control means for controlling the flow rate of the raw material flowing out from the molding space is provided in the molding space, the flow of the raw material is further homogenized, and the distribution plate is provided integrally with the guide member. As a result, the flow of the raw material in each divided passage becomes smooth, and the flow control of the raw material becomes easy.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual view showing an apparatus for manufacturing cement building materials, FIG. 2 is a plan view showing an embodiment of the manufacturing apparatus according to the present invention, FIG. 3 is a side view of the same, and FIG. 4 is a main part of the manufacturing apparatus. 6 is a horizontal sectional view, FIG. 5 is a view taken along the line 5-5 of FIG. 4, and FIG.
FIG. 7 is a partially cutaway perspective view showing a main part of the manufacturing apparatus, and FIG. 7 is a partially cutaway perspective view of an extrusion molded body.

First, as a general outline of the apparatus for producing the cement building material W, as shown in FIG. 1, a mixer 11 for kneading cement, silica sand, fibers, chemicals and the like to produce mortar as a raw material is provided. is doing. In this mixer 11, mortar is generated by kneading the composition. The mortar is the mortar outlet 13 of the mixer 11.
It is further discharged and is conveyed by the first conveyor 15 connected to the discharge port 13. The raw material supply port 19 of the extruder 17 is installed at the tip of the first conveyor 15, and the extruder 17 is connected to the manufacturing apparatus according to the present invention. Cement building material W molded by this manufacturing equipment
Is discharged from the outlet O of the die molding unit 23. A transfer conveyor 57 is installed at the outlet O of the mold forming unit 23, and is transferred onto a tray 59, cut into an appropriate length, and then transferred to an autoclave 61 for primary curing. When the primary curing is completed, the secondary curing is carried to the next autoclave 63. After being dried in this way and having a sufficient strength, it is cut and processed into the product cement building material W.

The manufacturing apparatus according to the present invention introduces mortar, which is a fluid raw material continuously fed under pressure from the raw material supply means G, into the inlet of the die molding unit 23 for molding it into a predetermined shape, and a plurality of mortars are introduced. The net-like reinforcing material is also supplied and the net-like reinforcing material is embedded in the mortar. Two net-like reinforcing members 29, 29 are inserted as shown in FIG.
The cement building material W having the two-stage hollow portion 31 is manufactured.

As shown in FIGS. 2 and 3, the raw material supply means G is provided with a pressure feeding device 21 called an auger capable of feeding mortar at a high pressure and a branch extending in two directions connected to the pressure feeding device 21. First and second connecting pipes 25,
27 and a plurality of passages Tu, Tc in the connecting pipes 25, 27.
, Td (see FIGS. 5 and 6)
And a flow rate control means R1 provided for each of the divided passages Tu, Tc, Td.

The connecting pipes 25 and 27 are branched from the mother pipe 24 and are three-dimensionally curved as shown in FIGS. 2 and 3, but the connecting pipes 25 and 27 have the same pipe length. It has a pipe diameter and is connected to the side part of the mold forming part 23 so that the mortar sent out from the pressure feeding device 21 merges again in the molding space 23C of the mold forming part 23. As shown in FIG. 6, the portions of the connecting pipes 25 and 27 connected to the side of the mold forming portion 23 have distribution plates 49 and 49 inside.
The passages Tu, Tc, Td are divided into three by
A first flow rate control means R1 is provided for each.

The distribution plates 49, 49 are formed integrally with a guide member 35, which will be described later, and the rear end of each of the connecting pipes 2 is formed.
It has been extended to within 5,27. If you do this,
The mortar sent from the pressure-feeding device 21 and flowing down through the connecting pipes 25 and 27 can be smoothly supplied into the molding space 23C. As a result, the mortar is separated into three layers by the distribution plates 49, 49 and flows into the molding space portion 23C of the mold molding portion 23.

The first flow rate control means R1 is provided with a molding space portion 2 of the mold molding portion 23 from the divided passages Tu, Tc and Td.
The flow velocity of mortar flowing into 3C is controlled, and flow velocity control valves 51u, 51c, 51d that are independently regulated for each of the three passages Tu, Tc, Td, and a fluid pressure supply means (not shown). The flow velocity control valves 51u, 51c, 51d are activated by operating the fluid pressure supply means, and the flow cross sections of the passages Tu, Tc, Td are adjusted. The reference numeral “52c” is a screw for attaching the fluid pressure supply means to the mold forming section 23.

As shown in FIG. 4, the mold forming part 23 of the present embodiment has an inner surface within a predetermined range in the flow direction of the mortar so that the raw material passage is gradually narrowed from the inlet I of the forming space part 23C. The formed tapered surface portion 23a and the flat portion 23b connected to the tapered surface portion 23a are formed.
Two guide members 35, 35 for accurately guiding the net-shaped reinforcing member 29 to a predetermined position are arranged in parallel with each other in the molding space portion 23C corresponding to the portion where the tapered surface portion 23a is formed. (See Figure 5). Each guide member 35
A space 37 is formed in the interior of the space to allow one net-like reinforcing body 29 to be accommodated to pass therethrough.
The outer surface of each guide member 35 is a tapered surface 37a that tapers toward the opening 39 at the tip of the gap 37.

As a result, the flow of the mortar flowing from the inlet I is guided by the tapered surface portion 23a and the tapered surface 37a of the guide member 35 to the front and back surfaces of the net-like reinforcing member 29. The opening 39
Protrudes into the molding space 23C by being made as narrow as possible within the range in which the net-shaped reinforcing member 29 can be sent out. As a result, the net-shaped reinforcing member 2 also exists in the mortar having poor fluidity.
9 can be easily buried and the mortar has an opening 39
Will not get inside. A support bolt 41 is attached to the tip end portion 39 of the guide member 35, and is supported by the mold forming portion 23.

In this way, the tapered surface portion 23a of the molding space portion 23C and the tapered surface 3 formed on the outer surface of the guide member 35 are formed.
When 7a is formed, the mortar that hits the front and back of the net-shaped reinforcing member 29 and the net-shaped reinforcing member 29 are reliably combined. Moreover, as described above, when the flow rate of the mortar flowing through the passages Tu, Tc, Td is controlled to be the same by the first flow rate control means R1, the net-like reinforcing member 29 is reliably removed from the guide member 35 by the mortar. It will be pulled out and will be united with the mortar in a flat and stable state.

As shown in FIGS. 2 and 3, the mold forming section 2
The net-shaped reinforcing member 29 is provided at the rear end of the mold forming part 23.
It is preferable to mount the holding member 43 in order to prevent it from being twisted or displaced unnecessarily when it is fed in. The holding member 43 is not particularly limited in the present invention, but may be, for example, a resistance roller that rotates with some frictional resistance.

As shown in FIGS. 4 to 6, a core 45 for forming a hollow portion 31 inside the cement building material W is attached to the guide member 35. This core 4
5 extends in the flow direction of the mortar, and the base end of the guide member 3
No. 5 is attached to the mold forming part 23.
Has reached the exit O.

Further, in this embodiment, depending on the shape of the cement building material W, the mortar flowing out from the molding space portion 23C of the mold molding portion 23 has a uniform flow velocity over the entire body only by the above-mentioned first flow rate control means R1. Therefore, the second flow rate control means R2 is provided in the molding space portion 23C of the mold molding portion 23. This second flow rate control means R2
Similarly to the first flow rate control means R1, it also has a flow rate control valve 55 for controlling the flow rate of mortar, and a fluid pressure supply means for controlling the valve opening degree of these flow rate control valves 55. The flow section is adjusted by means.
Reference numeral “56” is a screw.

Next, a method for manufacturing the cement building material W according to this embodiment will be described. Initial Setting Step First, before the mortar is pressure-fed by the raw material supply means G, the net-like reinforcing member 29 is inserted into the guide member 35,
The tip end portion of the net-shaped reinforcing member 29 is set so as to protrude from the tip end opening portion 39 of the guide member 35 into the mold forming portion 23.

Net-shaped Reinforcing Body Encapsulation Process When the installation of the net-shaped reinforcing body 29 is completed, the mixer 11
And extruding the kneaded fluid mortar into the extruder 1
Supply to 7. Then, the extruder 17 and the pressure feeding device 21
Is started and mortar is supplied into the connecting pipes 25 and 27. Since the insides of the connecting pipes 25 and 27 are divided into three by a distribution plate 49 extending integrally from the guide member 37, the mortar is divided into these passages Tu and Tc.
, Td are divided. Each of the divided passageways Tu,
Since the first flow rate control means R1 is provided in Tc and Td, the flow rate of mortar is equalized in each of the passages Tu, Tc, and Td, and the mortar is divided into a plurality of layers to form a molding space portion 23C of the mold molding portion 23. Is continuously supplied from the inlet I to the inside.

The flow of mortar flowing from the inlet I is deflected by the tapered surface portion 23a and the tapered surface 37a of the guide member 35 toward both the front and back surfaces of the net-shaped reinforcing member 29, and the net-shaped reinforcing member 29. Since pressure is applied from both the front and back sides, the mortar and the net-shaped reinforcing body 29 are inevitably united.

Moreover, as described above, when the flow rate of the mortar is controlled to be the same by the first flow rate control means R1, the net-like reinforcing member 29 is reliably pulled out from the guide member 35 by the mortar itself and flattened. It will be combined with the mortar in a stable state. That is, the extraction timing of the net-shaped reinforcing member 29 and the supply timing of the mortar are in synchronism with each other, so that the net-shaped reinforcing member 29 and the mortar always operate in synchronization and the net-shaped reinforcing member in a stable state. 29 can be pulled out continuously and smoothly. Therefore, even when a plurality of net-like reinforcements 29 are inserted, the flow rate or flow velocity of the mortar in each layer is the same, and the net-like reinforcements 29 cause the openings 3 of the guide member 35 to be formed.
It will be smoothly withdrawn from 9.

Moreover, even a net-like reinforcing material 29 made of a carbon-carbon composite material, which is relatively easily deformable and has a low rigidity, does not deform or twist due to high-pressure mortar, and is in a flat state. It will be buried in mortar. Further, even when the cement building material W is completed, it is possible to obtain the cement building material W in a state in which the net-shaped reinforcing material 29 extends over the whole, and it is possible to manufacture a high quality product with high productivity. .

The opening 39 of the guide member 35 is as narrow as possible within the range in which the net-shaped reinforcing member 29 can be fed out and protrudes into the molding space 23C, so that it can be used even in a mortar with poor fluidity. The net-shaped reinforcing member 29 easily enters, and the mortar does not enter the opening 39 of the guide member 35.

Molding Step Immediately after the step of enclosing the net-shaped reinforcing body, the mortar is molded into a predetermined shape when the net-shaped reinforcing body 29 is provided in the mold molding portion 23. When the net-shaped reinforcing member 29 is embedded in the mortar and is pressure-fed in the mold forming part 23, the mortar has a space formed by the core 45 in the mold forming part 23 and the outer shape is the mold. The shape of the cement building material W is rectangular, which is the exit shape of the molding portion 23, and the cement building material W has a rectangular cross section having a hollow portion 31 inside. In addition, when forming a building material of a corner portion of the wall surface, the outlet shape of the mold molding portion 23 may be L-shaped in cross section, or may be U-shaped or the like depending on the case.
The tip opening 39 of the guide member 35 is narrow, and even when fluid mortar is used, the mortar does not penetrate from the opening 39 into the gap 37 of the guide member 35. In addition, the net-shaped reinforcing member 29 has the gap 37.
Since it has the effect of cleaning the gap portion 37 when it is dragged out of the mold into the mold forming portion 23, the gap portion 37 is not clogged with mortar or the like.

The above is one embodiment of the present invention, and the present invention can be variously modified without departing from the scope of the claims. For example, although mortar was used as a raw material in the above-mentioned embodiments, the present invention is not limited to this, and various fluid materials can be used. Further, the number of divisions in each connecting pipe can be appropriately changed depending on the number of net-shaped reinforcements embedded in the raw material, and the number of flow control means provided in the division passage can be changed. Further, the flow rate control means provided in the mold forming section may not necessarily be necessary depending on the product. In addition, the distribution plate extended from the guide member into each connecting pipe,
It does not necessarily have to be formed integrally with the guide member.

[0038]

According to the method of the present invention described above, the raw material is fed under pressure after the tip of the net-shaped reinforcing member is set in the mold forming portion so as to project from the open end of the guide member. The net-shaped reinforcing material is drawn into the mold forming part. Since the withdrawal of the net-shaped reinforcing member is synchronized with the supply of the raw material, the net-like reinforcing member can always be inserted continuously in a stable state and surely. In addition, the guide member is installed in the mold forming section, and the net-shaped reinforcing member guided into the mold forming section through the gap formed in the guide member is Since the raw material is inserted into the raw material immediately before it is formed into a predetermined shape, the net-like reinforcing body can be surely embedded even in the raw material having poor fluidity. According to the device of the present invention, the inner surface of the mold forming portion is provided with the tapered surface portion where the raw material passage is gradually narrowed from the inlet side and the guide member where the outer surface is tapered so that the raw material is in a net shape. The reinforcing body flows so as to pressurize it from both the front and back sides, and the unity with the net-shaped reinforcing body is improved. Further, since the flow rate control means is provided for each of the passages obtained by dividing the inside of each connecting pipe, even if a plurality of net-shaped reinforcing bodies are inserted inside the extruded molded body, the pressure-feeding raw materials correspond to each. The flow rate and flow rate are adjusted by the flow rate control means to be supplied into the mold forming section separately in a plurality of layers, so that the raw materials in each layer have the same flow rate or flow rate, and the flow rate distribution of the raw material in the mold forming section. Can be uniformly controlled, and the net-shaped reinforcing body can be smoothly pulled out, and when the extrusion molded body is formed, the net-shaped reinforcing body can be reliably inserted into a predetermined position inside thereof. This insertion can be done continuously, so that not only can extrusions of different sizes be formed, but productivity is also improved. Further, if the second flow rate control means for controlling the flow rate of the raw material flowing out from the molding space portion is provided in the molding space portion, the flow of the raw material is further homogenized, and if the distribution plate is provided integrally with the guide member, The flow of the raw material in the divided passages becomes smooth, and the flow control of the raw material becomes easy.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an apparatus for producing a cement building material.

FIG. 2 is a plan view showing an embodiment of a manufacturing apparatus according to the present invention.

FIG. 3 is a side view of the same.

FIG. 4 is a horizontal half-sectional view showing a main part of the manufacturing apparatus.

5 is a cross-sectional view taken along line 5-5 of FIG.

FIG. 6 is a partially cutaway perspective view showing a main part of the manufacturing apparatus.

FIG. 7 is a partially cutaway perspective view of an extrusion molded body.

FIG. 8 is a sectional view showing a conventional extrusion molding apparatus.

[Explanation of symbols]

23 ... Mold forming part, 23a ... Tapered surface part, 23b ...
Flat part, 23C ... Molding space part, 29 ... Net reinforcing material, 35 ... Guide member, 37 ... Gap part, 37a ...
Tapered surface, 39 ... Opening of guide member, 49 ... Distribution plate, G ... Raw material supply means, I ... Molding space inlet, O ... Molding space outlet, R1 ... First flow rate control means, R2 ... Second flow rate control Means, Tu, Tc, Td ... passage,
W: Cement building material.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tadashi Isoyama 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation (72) Inventor Kozo Toyama No. 19-1 Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Tatsuo Suenaga 2-19-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Hiroaki Nakagawa 2-1-1, Tobita, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Center

Claims (4)

[Claims] 1. A mold molding section for molding a fluid raw material continuously fed from a raw material supply means (G) into a predetermined shape.
Introduced from the inlet (I) of the molding space of (23), a plurality of net-shaped reinforcing materials (29) are also fed into the molding space (23C) of the mold molding part (23), Net-shaped reinforcement (2
In the method for producing an extrusion-molded article containing a net-shaped reinforcing material, the extrusion-molded article in which 9) is embedded is discharged from the molding space section outlet (O) of the mold molding section (23). Before pressing the raw material by G), a guide member for guiding the net-like reinforcing body (29) provided at the molding space portion inlet (I) of the mold forming part (23) from the outside into the mold forming part. From the opening (39) of (35), the distal end of the net-shaped reinforcing body (29) to the molding space of the mold molding part (23).
(23C) initial setting step of setting in a state of protruding into the inside of the guide member (35) of the reinforcing member to the front and back surfaces of the net-shaped reinforcing member (29) protruding from the opening (39) The front-side raw material and the back-side raw material of the net-shaped reinforcing member (29) are supplied at substantially the same flow rate, and the net-shaped reinforcing member (2
9) The net-shaped reinforcing body encapsulating step in which the material is pulled out from the guide member (35) while being pinched, and immediately after the net-shaped reinforcing body encapsulating step is completed, the molding space portion (23) of the mold forming part (23) 23C), the net-shaped reinforcing member (29) pulled out inside the raw material and the raw material surrounding the net-shaped reinforcing body are molded into a predetermined shape, and the net-shaped reinforcing material (29) is embedded in the raw material. And a step of forming the extruded body as described above, and a method for producing an extruded body containing a net-shaped reinforcing material. 2. A mold forming part (23) for forming a raw material of an extruded body which is a fluid into a predetermined shape, and the mold forming part (23).
Raw material supply that continuously feeds the raw material into the molding space (23C) of the mold molding section (23) from the connection pipe (25, 27) connected to the pump while controlling the flow rate by the flow rate control means (R1). Means (G)
And a plurality of net-like reinforcing bodies (29) that are mounted in the molding space (23C) of the mold molding section (23) and enhance the strength of the extruded body independently from the outside. It has a plurality of guide members (35) for guiding inside the molding space (23C) of the mold molding part (23), and a net-like reinforcement from the molding space part outlet (O) of the mold molding part (23). In the apparatus for producing an extrusion-molded product containing a net-shaped reinforcing material, which discharges the extrusion-molded product in which the material (29) is embedded, the mold molding part (23) is provided on the inner surface of the molding space part from the inlet (I) of the raw material. A taper surface portion (23a) formed in a predetermined range in the flow direction and having a gradually narrowed raw material passage, and a taper surface portion (23a)
And a molding space portion (23C) corresponding to the portion where the flat surface portion (23b) and the tapered surface portion (23a) are formed.
Inside, a gap portion (37) for flattening and passing the net-shaped reinforcing member (29) and an outer surface tapering toward the opening portion (39) at the tip of the gap portion (37) are formed. A plurality of guide members (35) having a tapered surface (37a) are arranged in parallel, and the raw material supply means (G) divides the inside of each of the connecting pipes (25, 27) into a plurality of parts. An apparatus for manufacturing an extruded product containing a net-shaped reinforcing material, characterized in that a flow rate control means (R1) is provided for each of the passages (Tu, Tc, Td). 3. The second flow rate for controlling the flow rate of the raw material flowing out from the molding space portion (23C) into the molding space portion (23C) of the mold molding portion (23). Control means (R2)
The apparatus for manufacturing an extruded product containing a net-shaped reinforcing material according to claim 2, further comprising: 4. The raw material supply means (G) has a distribution plate (49) extending from the guide member (35) into each of the connecting pipes (25, 27), and the distribution plate (49). The apparatus for producing an extruded product containing a net-like reinforcing material according to claim 2 or 3, wherein a flow rate control means (R1) is provided for each of the passages (Tu, Tc, Td) divided by.