JPH11179741A - Molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce required drive power and to prevent the leak of a resin soln. into a molding passage in a molding apparatus suitable for the continuous production of a long foamed resin molded object. SOLUTION: A rectangular upper mold 7 is fitted in a rectangular groove- shaped lower mold 6 to form a desired molding passage 17. Steel belts 8-11 are arranged in the molding passage 17 foaming a resin in a slidable manner and the inner surfaces of them are covered with bendable and co-rotatable seal belts 12, 13. The edge parts 12a, 13a of the seal belts 12, 13 are inserted into the gaps 18 of the upper and lower molds 6, 7 and the generation of burr is made impossible at a part other than the gap between the edge parts 12a, 13a. A plurality of small holes 6a, 7a are provided to the upper and lower molds 6, 7 and pressure water is injected into the gaps between the steel belts 8-11 to reduce the friction force of the steel belts 8-11 at a time of sliding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for forming a desired sectional shape through a material in a molding passage, for example, a resin molded article having a plate-like or long-like shape such as a heat insulating material or a building material. The present invention relates to a molding apparatus suitable for continuous production.

[0002]

2. Description of the Related Art Many proposals have been made for this type of molding apparatus. The basic configuration of this type of apparatus is, for example, as disclosed in Japanese Patent Publication No. 48-30137.
In a molding die forming a rectangular molding passage, four endless belts advancing along the inner wall surface of the molding die are arranged,
A long fiber bundle impregnated with a foam-curable resin stock solution or the like is injected from one side of the molding passage as a material to be molded, and molding is performed using the increase in volume of the resin stock solution during foaming while passing through the molding passage. This is to give the cross-sectional shape of the mold to the material to be molded and to continuously obtain a long molded body.

However, in such a configuration, the material to be molded leaks into the molding die from a gap between the endless belts, which appears as burrs on the molded product, or adheres to the surface of the molding cylinder to cause the traveling of the endless belt. There is a problem that this may eventually render the device inoperable.

[0004] Various means have been proposed in order to solve such problems caused by leakage of the material to be molded. For example, in the technology disclosed in JP-A-6-31751, four endless belts are arranged such that one edge thereof is in contact with another endless belt adjacent thereto, and an elastic member or a sheet-like member having a triangular cross section is provided. Elastic members and the like are arranged at the abutting portion, and these are deformed by the internal pressure of the molding passage which is increased by foaming of the resin stock solution, thereby closing the gap at the abutting portion and preventing leakage of the material to be molded from this portion. . According to the technique disclosed in Japanese Patent Application Laid-Open No. Hei 6-31752, instead of the above-described elastic member or the like, a thread-like body made of nylon or the like having a circular cross section is continuously supplied to a contact position between endless belts.
Similarly, it is deformed by the internal pressure of the molding passage to close the gap at the contact portion.

However, taking such measures to prevent the generation of burrs has the advantage that the design criteria for the gap between the endless belts can be relaxed, but in order to realize stable operation of the apparatus over a long period of time, it is necessary to use an elastic member or the like. A device for always accurately positioning a thread or the like in a gap between endless belts,
A new problem arises in that a mechanism is required and the device configuration is complicated.

In addition, not only the endless belt but also the elastic member and the thread-like body come into contact with the material to be molded in the molding passage.
These also require good releasability from the material to be molded or the molded product, and whether or not they move with the endless belt, the tensile force applied by the movement of the material to be molded or the cured molded product It must be able to withstand the heat, and on the other hand, it must be able to be deformed flat enough by the internal pressure of the molding passage so as not to affect the shape of the molded product. Must be taken into account, which causes a problem that the amount of usable materials is extremely small.

[0007] As an alternative to these, for example, as disclosed in Japanese Patent Publication No. 57-31981 and Japanese Patent Application Laid-Open No. 9-1682, a single long belt material is formed into a cylindrical shape and placed in a molding die. An apparatus for supplying the same material to be molded into the cylindrical molding passage formed by the belt material and forming the same, for example, JP-A-7-32386 and JP-A-82323
As disclosed in JP-A-49-49, there has been proposed an apparatus for forming a forming passage by bending two long belt members into a semicircle and combining them in a cylindrical shape.

The apparatus disclosed in Japanese Patent Publication No. 57-31981 can solve the above-mentioned drawbacks caused by using an elastic member or the like, but the joint of the belt material is always exposed in the forming passage. Therefore, the leakage of the material to be molded in the molding die, which has been solved by using an elastic member or the like, and a problem caused by the leakage occur.

In any of the above-described conventional techniques, the endless belt moves while sliding on the surface of the stopped mold in any case. For this reason, it is necessary to advance the endless belt against the frictional force, and when the molding is performed using a molding material having a large expansion force or a molded product having a large cross-sectional shape, the endless belt is driven. Not only does it require a very large driving force, but depending on the material used, endless belts, elastic members, filaments, etc. may expand and contract due to temperature changes during molding,
Therefore, there are various factors that increase the size of the device configuration, such as the necessity of a device for controlling the tension.

As an alternative to these, as disclosed in Japanese Utility Model Publication No. 6-50180, for example, a roller for supporting an endless belt with a large number of rollers instead of a forming die to prevent bending of the rollers. There is a method of arranging a backup roller for holding down. In other words, depending on the rigidity of the endless belt, if the rollers supporting the endless belt are arranged at a fine pitch so that the endless belt does not bend due to the expansion pressure of the molded body, the strength of the rollers arranged at the fine pitch However, a backup roller is used to cover this because a large thick roller cannot be used.

However, in such an apparatus configuration using a large number of rollers, the endless belt is inevitably bent wavy by the foaming pressure of the molded article due to the gap between the rollers, so that the belt driving force and belt tension are increased. Is difficult to keep small. If a highly rigid belt is used to reduce the degree of bending of the endless belt, a large-diameter pulley for winding the endless belt is required, so that the driving force is also large and the device configuration is also large. Has occurred.

It is conceivable to reduce the frictional force by applying a lubricant to the endless belt. In this case, however, the frictional force due to the sliding contact with the mold is reduced, which is convenient. Since the frictional force between the pulley and the pulley also becomes small, there is a problem that the driving becomes difficult, so that it cannot be adopted after all.

When foaming a resin, the speed and degree of the chemical reaction greatly depend on the ambient temperature. Accordingly, various methods of controlling the temperature of this type of apparatus have been proposed. For example, a method is known in which the entire molded portion is placed in an oven and controlled by the temperature in the oven. In addition, a method is known in which a heater is embedded in a mold, or the mold is hollowed out to control the temperature through hot or cold water. However, in the former case, the entire apparatus tends to be large, and it is considerably difficult to configure a heating section and a cooling section in the course of the reaction. In the latter method, although the disadvantages of the former method can be considerably solved, the presence of the endless belt and the driven belt in the mold results in poor heat conduction to the molding portion, making it difficult to perform delicate temperature control.

In view of the above-mentioned conventional problems, the present invention does not prevent burrs from being formed on a molded product, but conversely makes it possible to form burrs only at certain locations outside the mold. It is possible to prevent leakage of the resin liquid or the like in the passage, to obtain a molded product without obstructing the operation of the apparatus, and to easily obtain a molded product having a desired shape by simple post-processing.
Further, it is another object of the present invention to provide a molding apparatus having a simple apparatus configuration capable of saving energy for driving the apparatus by reducing frictional resistance between a molding die and a belt that slides on the molding die. .

[0015]

According to a first aspect of the present invention, there is provided a molding apparatus in which a material to be molded is introduced into a molding passage having a desired cross-sectional shape to achieve the above object. In a molding apparatus for moving the material to be molded into a molded body having a cross-sectional shape corresponding to the cross-sectional shape of the molding passage while moving in the molding passage, the injection side of the material to be molded, the exit side of the molded body and the molded body A first forming die having a groove shape with at least one surface opened along a moving direction of the raw material and the formed body;
A second molding die for loosely fitting at least a part of the first molding die into the first molding die through the opening on the one surface of the first molding die to form the molding passage; and forming the second molding die in the molding passage. At least one first member movable along the inner surface of the first mold;
A belt-like body, at least one second belt-like body that can be driven to move along the surface of the second molding die facing the molding passage, and with the movement of the first belt-like body. A first driven belt-like body arranged so as to sandwich the first belt-like body between the first mold and the first mold so as to be movable along an inner surface of the first mold; The second belt is sandwiched between the second mold and the second mold so as to be movable along the surface of the second mold facing the molding passage as the belt moves. And a pair of edges of the first driven belt-shaped body and the second driven belt-shaped body, and the second molding die to the first molding die. Between the first and second molding dies at the fitting portion of at least one of the first and second molding dies, Having at least one small hole that is opened through the gap, and feeding the pressurized liquid or gas between the forming die provided with the small hole and the first or second belt-shaped body corresponding to the forming die, A liquid or gas film can be formed between the mold and the belt.

According to a second aspect of the present invention, in order to achieve the above object, the small holes are provided in each of the first and second molds.

According to a third aspect of the invention, in order to achieve the above object, the temperature of one or both of the first and second molds is controlled by a pressurized liquid or gas fed from the small hole. It is characterized by doing.

According to a fourth aspect of the present invention, in order to achieve the above object, the first and second molding dies are divided into two or more at corresponding positions, and are pressurized and fed through the small holes. The liquid or gas temperature is varied.

According to a fifth aspect of the present invention, in order to achieve the above object, the hollow inner shape of the first mold is a square tube, and the open surface of the hollow inside of the square tube is formed by the first mold. The first belt-shaped body is disposed on each of the surfaces except for the first belt-shaped body, and the first driven belt-shaped body can be bent into a groove shape corresponding to the internal shape of the first mold, and The second driven belt-shaped body can be bent into a groove shape corresponding to the shape of the fitting portion of the second molding die to the first molding die.

According to a sixth aspect of the present invention, in order to achieve the above object, the first molding die has a rectangular cross-sectional shape, and the second belt-like body has at least the first belt-like body. The part to be fitted to the mold has a rectangular cross-sectional shape.
The hollow interior formed by the second mold is a rectangular tube, and the first belt-shaped body is arranged along each of three surfaces except the one open surface of the first mold. The first driven belt-shaped member can be bent into a rectangular groove shape corresponding to the cross-sectional shape of the first forming die, and the second driven belt-shaped member is connected to the first forming die. It is characterized in that it can be bent into a rectangular groove shape corresponding to the shape of the fitting portion of the second molding die.

According to a seventh aspect of the present invention, in order to achieve the above object, the first and second belt-like bodies and the first and second driven belt-like bodies are separately and endlessly formed. The first and second belt-shaped members are rotated and driven to rotate the first and second driven belt-shaped members together with the first and second belt-shaped members.

According to the present invention, in order to achieve the above object, the material to be molded is initially a liquid, and is formed into a resin alone or a fiber assembly which is cured while expanding in the molding passage. Or a resin obtained by mixing a filler, a short fiber, or the like into the resin, wherein the first and second belt-shaped bodies have a desired mechanical strength, and the first and second belt-like bodies have a desired mechanical strength.
Is characterized in that the driven belt-shaped member has a releasing property from the above-mentioned cured resin and its composite cured body and a sealing property with respect to the above-mentioned resin liquid.

According to a ninth aspect of the present invention, in order to achieve the above object, at least a fold is provided along the moving direction of the first driven belt-like body so that the first molding is performed in the molding passage. It is characterized in that it can be bent according to the sectional shape of the mold.

According to a tenth aspect of the present invention, in order to achieve the above object, at least a portion of the first and second driven belt-like bodies which is in contact with the material to be molded is made of a fluorine-based resin. Characterized by being impregnated.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. In the embodiment described below, the shape of the molding passage is a rectangular cylindrical shape, and only an example in which the shape of the molded product is a quadrangular prism is described and illustrated, but the present invention is not limited to this. For example, a triangular shape is possible, and a polygonal shape of a pentagon or more may be used. It is only necessary to change the number and arrangement of the belt-shaped members in accordance with the shape of the molding passage. In addition, the material to be molded in the present invention is not limited to a resin, and various types of materials can be used.However, even when a resin is to be a material to be molded, a foam-curable resin described and illustrated in the present embodiment, for example, The material is not limited to a phenol resin, a urea resin, a polyurethane resin, or the like, and a resin or the like that is initially liquid and hardens while expanding in a molding passage may be used as a material. Further, only an example in which a fiber aggregate such as a glass continuous strand mat to which the undiluted solution of the resin is adhered is shown and described, but the apparatus of the present invention is a single undiluted solution of the resin and Various objects such as those obtained by mixing a filler in an undiluted solution of the resin and those obtained by adhering the liquid resin to a bundle of long fibers can be used as the object to be molded.

FIG. 1 is a perspective view conceptually showing a molding apparatus according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof. In the apparatus of the illustrated embodiment, a foam-curable resin stock solution 1 is ejected from a nozzle 2 onto a glass continuous strand mat (hereinafter, simply referred to as a glass mat) 3 and adhered thereto. Is a continuous molding of a rectangular elongated molded body 5, mainly comprising a lower die 6 and an upper die 7, which are dies, four endless steel belts 8 to 11, and two similarly endless steel belts. It comprises seal belts 12 and 13, an unloading belt conveyor 14 and a deburring cutter 15 arranged on the output side of the apparatus.

As can be seen from FIG. 4 showing the cross-sectional shape of the lower die 6, the lower die 6 has a rectangular groove 16 which is open on the input side of the raw material 4, the output side of the molded body 5, and the upper surface. Also upper die 7
Has a rectangular cross-sectional shape corresponding to the shape of the groove 16 of the lower die 6. The groove 16 and the upper mold 7 of the lower mold 6 are formed so that a molding passage 17 having a desired shape and dimensions is formed when the steel belts 8 to 11 and the seal belts 12 and 13 are arranged as described later. Similarly, as shown in FIG. 4, the upper die 7 has a width which allows the upper die 7 to be loosely fitted in the groove 16 of the lower die 6 to a predetermined depth so that the gaps 18 and 18 are clear. Various known means may be used for fitting and positioning the upper die 7 to a predetermined depth, and illustration and description thereof will be omitted. Although a solid mold is used for the upper mold 7 in the illustrated example, it may of course be a hollow mold.

Further, the lower mold 6 and the upper mold 7 form a plurality of small holes 6a, 7a on the inner wall surface facing the molding passage 17, that is, the surface in contact with the steel belts 8 to 11, respectively.
a, so that pressurized water can be blown out from 7a,
A thin water film is formed between the upper die 7 and the steel belts 8 to 11 to reduce frictional resistance when the steel belts 8 to 11 slide, thereby saving driving energy. The small holes 6a and 7a are provided in appropriate numbers in the direction perpendicular to the paper surface of FIG.
Water supply pipes 6b, 7
b. Of course, pipes are attached to the plurality of small holes 6a and 7a in the lower mold 6 and the upper mold 7, respectively, and these pipes are shared outside the lower mold 6 and the upper mold 7 and connected to the water supply pipes 6b and 7b. You may.

Water is most suitable for use in the present apparatus, and overflowing water is collected by the water collecting grooves 6 provided in the lower mold 6 and the upper mold 7.
The water is collected in a water tank (not shown) via c and 7c. Although the effect of reducing frictional resistance is inferior, compressed air may be injected to form an air film. Although other liquids and gases can be used, it is necessary to select a material that can be removed and dried before hanging on the members around which the steel belts 8 to 11 are wound, and the temperature of the mold is controlled. You should be especially careful when choosing.

Four endless steel belts 8 to 1
Reference numeral 1 denotes a dimension of the steel belts 8 and 9 along the substantially entire inner surface of the groove 16 of the lower mold 6, and a steel belt 10
And the steel belt 11 has a dimension along substantially the entire bottom surface of the upper die 7. Each of the side surfaces and the bottom surface described above is wound around the roller 19 in parallel with the roller 19 and along the moving direction of the molding material 4 in the molding passage 17, that is, the longitudinal direction of the lower mold 6 and the upper mold 7. And is rotationally driven by a driving means (not shown) while being in sliding contact with. In the present invention, a belt-shaped body having a required mechanical strength can be appropriately used instead of the steel belt. Further, even if it is not an endless belt, any belt-like body having a required length can be employed. Furthermore, in the present embodiment, the steel belt is wound around the roller and driven to rotate, but the present invention is not limited to this, and it is sufficient that the steel belt or a belt-like body instead of the steel belt can be moved by some means. For example, utilizing the frictional force and adhesive force between the material to be molded 4 or the molded body 5 and the seal belt and the frictional force and the like between the seal belt and the steel belt or an alternative belt-like body,
It is also possible to adopt a configuration in which a steel belt or an alternative belt-like body moves as the material to be molded 4 or the molded body 5 advances in the molding passage 17.

The two seal belts 12, 13 surround the steel belts 10, 11, respectively, inside thereof.
Each of the four rollers 20... Is wound around in parallel with each other.
It is assumed that it only rotates around 1. 1 and 4
As shown in the figure, outside the forming passage 17, it has an original substantially flat shape, and inside the forming passage 17, each has a bent shape,
That is, they are bent into rectangular grooves each opening upward. For this reason, in the illustrated embodiment, both of the seal belts 12 and 13 have a two-layer structure as shown in FIG. Two cuts 23 are formed between the second layer materials 22 located outside in 17. Needless to say, a material having a single-layered structure that can be bent by making a fold or a multilayered structure having three or more layers may be used. Further, the seal belts 12 and 13 are not necessarily endless belts but may be any belt-like body having a required length and structure.

The seal belt 12 is provided with a groove 16 of the lower mold 6.
Steel belts 8 to 1 corresponding to
The width is set so that both edges 12a, 12a are located at least in the gap 18 over the entire surface of the groove 0, and preferably the edge 12a is located at a position equal to or higher than the upper edge of the groove 16.
On the other hand, the seal belt 13 corresponds to the lower part of the upper die 7, and covers the entire surface of the steel belt 11 so that both edges 13 a, 13 a are located at least in the gap 18. The width is set so as to be at a position beyond the edge.

Further, both of the seal belts 12 and 13 are located inside the molding passage 17 and the material 4 to be molded and the molding 5
For the first layer material 21 that comes into contact with the material, a material having a required liquid sealing property for the foam-curable resin stock solution 1 and a required release property for the foamed molded article during molding and the molded article 5 after curing is used. Examples of such a material include a cloth made of polyaramid fiber or glass fiber or a composite cloth thereof impregnated with a fluorine-based resin so as to have releasability and heat resistance. The second layer material 22 located on the outside in the molding passage 17 may be the same as the above material, but in the present invention, the second layer material 22 has a required coefficient of friction with respect to a steel belt or a substitute material thereof, and The material is not limited to a sheet made of the above material and the like as long as it is a material that can rotate in a state pressed against a belt or the like. Material can be appropriately adopted.

It is usual for a molding apparatus of this type to provide a heating means or the like in the lower mold 6 and the upper mold 7 and control the molding process by controlling the temperature, but these means are not shown. I do. Of course, it does not mean that the present invention must have means for controlling such a molding process. However, in the illustrated embodiment, the section from the inlet to the outlet of the molding passage 17 is divided into two or more, and pressurized water controlled to different temperatures is supplied to the small holes 6a,
By injecting from 7a, the temperature in the molding passage 17 can be controlled according to the reaction state of the resin.

Next, the operation of the present embodiment will be described. In a state where the steel belts 8 to 11 are driven to rotate, the nozzles 2 are initially foamed in a liquid state, such as a polyurethane resin, from the nozzle 2 onto a glass mat 3 drawn from a roll (not shown) of the glass mat while increasing the volume. The foaming-curable resin stock solution 1 to be cured is ejected to form a material to be molded 4, which is introduced from the entrance of the molding passage 17. Then, the steel belt 1 moving on the bottom surface of the groove 16 near the entrance of the forming passage 17.
The material 4 to be formed is deposited on the seal belt 12 above the seal belt 12, and the weight of the seal belt 12 is lightly pressed onto the steel belt 10, and the seal belt 12 moves together with the steel belt 10 due to the frictional force between the two. Then, start so-called co-rotation. In this state, lower mold 6,
Pressurized water is injected from the small holes 6a, 7a of the upper die 7, and the frictional force generated between the upper die 6 and the lower die 7 due to the sliding of the steel belts 8 to 11 is reduced by the water film as described above. . In the present embodiment, the glass mat 3 forming the material to be molded 4 is not pulled from the exit side of the molding passage 17 by any means, but this may be performed at the start of operation of the apparatus.

In the molding passage 17, the foaming curable resin stock solution 1 forming the material to be molded 4 foams while generating heat, and the steel belts 8 to 11 and the seal belt 12 are formed on the inner wall surface of the molding passage 17 due to the volume increase accompanying the foaming. , 13 is, for example, 1 to 3 kg / cm ² . Due to this pressure, the seal belts 12, 13 are strongly pressed against the steel belts 8 to 11, respectively, and the shape of the forming passage 17 becomes the desired shape here. In this state, not only the seal belt 12 and the steel belt 10, but also the seal belt 12 rotates together with the steel belts 8 and 9, and the seal belt 13 rotates together with the steel belt 11. As described above, the frictional force applied between the upper mold 6 and the lower mold 7 and the steel belts 8 to 11 is reduced,
The steel belts 8 to 11 move smoothly, and the material to be molded 4 is successively and smoothly drawn into the molding passage 17, formed into a shape in the molding passage 17, and solidified while containing the glass mat as a reinforcing material. Then, the molded product 5 is discharged from the exit of the molding passage 17. Since the molded body 5 does not come into contact with water by the seal belts 12 and 13, water does not mix with the molded body 5 and water does not damage the surface of the molded body 5. In addition, since the above-described operation is performed, it is necessary to control the moving speeds of the steel belts 8 to 11 to be equal. However, since such control is conventionally known, the configuration and operation of the control system will not be described. Omitted.

As described above, the seal belts 12 and 13 are originally in the form of a flat sheet when they are outside the molding passage 17, but when they enter the molding passage 17, the edges 12a and 13a are formed.
Overlap each other, enter the gap 18 between the lower mold 6 and the upper mold 7, and bend into a groove along each cut 23.
Of course, the bending deformation of the seal belts 12 and 13 starts before entering the gap 18 as shown in the figure.

Then, a part of the foaming-curable resin stock solution 1 expanded in the molding passage 17 is sealed before the solidification.
It goes between the edges 12a, 13a of the two, 13 and penetrates between them by the pressure created by the foaming and tries to exit the molding passage 17. Therefore, the discharged molded body 5
Is formed with burrs 5a. However, the burrs 5a can be generated only between the edges 12a and 13a of the seal belts 12 and 13, and are not generated in other portions. It is to be noted that air is evacuated from the molding passage 17 from the edges 12a and 13a of the seal belts 12 and 13 at the same time.

The burrs 5a are scraped (or cut off) by the deburring cutter 15 while being conveyed on the belt conveyor 14, and formed into a final shape. Since the position at which the burrs 5a occur is constant as described above, the deburring cutter 15 may be as simple as simply pressing a knife-shaped edge against the upper surface of the molded article 5.

In order to prevent a decrease in the coefficient of friction between the steel belts 8 and 11 and the roller 19 around which the steel belts 8 and 11 are hung, moisture adhering to the steel belts 8 and 11 at the time of exiting the mold is scraped off by a scraper (not shown). Further, the steel belts 8 to 11 are completely dried by an infrared heater or the like (not shown) disposed in the vicinity.

[0041]

As described above, the molding apparatus according to the present invention rotates a plurality of belt-shaped members in a molding passage formed by fitting another molding die to be paired with one molding die. A pair of driven belt-like members are provided so as to be drivable and cover the inner surface of the molding passage, and further follow the inside of the molding passage of the belt-like member and co-rotate, so that leakage of resin liquid does not occur in the molding passage. There is an effect that good products can be continuously obtained without hindering the operation of the molding apparatus. In addition, since the edges of these driven belt-shaped members are sandwiched between the fitting portions of the molding die, the portions where burrs may be formed on the molded product are limited between the edges of the driven belt-shaped members sandwiched between the molding dies. This eliminates burrs on the molded product at any point in the molding path, simplifies the design of belt-like bodies that had strict standards for preventing burrs, and reduces the equipment configuration to the same type of conventional molding equipment. Compared to this, there is an effect that the device can be made very simple and inexpensive, and since the process for deburring is simple, the device configuration for the post-process can also be simplified. Further, pressure is applied between the first or second belt-shaped body corresponding to the molding dies through at least one small hole that opens toward a molding passage provided in at least one of the first and second molding dies. Since the liquid or gas is fed to form a liquid or gas film between the molding die and the belt-shaped body, there is an effect that energy for driving the apparatus can be saved and the apparatus configuration can be simplified. .

According to a third aspect of the present invention, as described above, the first and second molding dies are formed by pressurized liquid or gas fed from one or both of the first and second molding dies. Since the temperature of the mold was controlled,
In addition to the above common effects, there is an effect that the temperature control of the mold can be efficiently performed.

Further, as described above, the molding apparatus according to the fourth aspect divides the first and second molding dies into two or more at corresponding locations, and pressurizes the liquid or the liquid fed from the small holes. Since the temperature of the gas is made different, in addition to the above-mentioned common effects, the temperature of the mold can be accurately controlled according to the properties of the molded product,
There is an effect that a higher quality molded product can be manufactured, and the defect rate can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view conceptually showing a molding apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is an enlarged sectional view showing a configuration of a forming passage.

FIG. 5 is an enlarged sectional view showing the structure of the seal belt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Foam curable resin stock solution 2 Nozzle 3 Glass continuous strand mat (glass mat) 4 Molding material 5 Molded body 5a Burr 6 Lower mold 6a Small hole 6b Water supply pipe 6c Water recovery groove 7 Upper mold 7a Small hole 7b Water supply Piping 7c Water recovery groove 8-11 Steel belt 12, 13 Seal belt 12a, 13a Seal belt edge 14 Belt conveyor 15 Deburring cutter 16 Lower die groove 17 Molding passage 18 Lower die upper die gap 19, 20 Roller 21 First layer material 22 Second layer material 23 Cut

Claims (10)

[Claims] 1. A molding material having a desired sectional shape is charged into a molding passage having a desired cross-sectional shape. The molded material having a sectional shape corresponding to the sectional shape of the molding passage is moved while moving in the molding passage. A molding apparatus having a groove-shaped first molding die having at least one surface opened along a moving direction of the molding material input side, the molding body discharge side, the molding material, and the molding body moving direction; A second mold for loosely fitting at least a part of the first mold in the first mold through the opening of the one surface of the first mold to define the molding passage;
A molding die, at least one first belt-shaped member movable along the inner surface of the first molding die in the molding passage, and a surface of the second molding die facing the molding passage. At least one second belt-shaped body that can be driven to move along;
A first belt-shaped body is interposed between the first belt and the first mold so as to be movable along the inner surface of the first mold with the movement of the first belt. 1 between the driven belt-like body and the second mold so as to be movable along the surface of the second mold facing the inside of the molding passage as the second belt-like body moves. A second driven belt-shaped body disposed so as to sandwich the second belt-shaped body, and a pair of edges of the first driven belt-shaped body and the second driven belt-shaped body is formed by the second driven belt-shaped body. A second molding die fitted to the first molding die at a position where the second molding die is fitted to the first molding die; at least one of the first and second molding dies is inserted into the molding passage; A molding die having at least one small hole opening toward the first and second belt-like bodies corresponding to the molding die; A molding apparatus characterized in that a liquid or gas which is pressurized is sent therebetween to form a liquid or gas film between the mold and the belt-like body. 2. The molding apparatus according to claim 1, wherein said small holes are provided in each of said first and second molding dies. 3. The molding apparatus according to claim 1, wherein the temperature of one or both of the first and second molds is controlled by a pressurized liquid or gas fed from the small hole. 4. The method according to claim 1, wherein the first and second molding dies are divided into two or more at corresponding positions, and the temperature of the pressurized liquid or gas fed from the small hole is made different. Item 5. The molding device according to any one of Items 1 to 3. 5. The hollow inner shape of the first mold is a rectangular tube, and the first belt-shaped member is disposed on each surface of the rectangular hollow inside except for the open surface. The first driven belt-shaped member can be bent into a groove shape corresponding to the internal shape of the first molding die, and the second driven belt-shaped member can be bent into the first molding die. The molding apparatus according to any one of claims 1 to 4, wherein the apparatus can be bent into a groove shape corresponding to the shape of the fitting portion of the second molding die. 6. A cross section of the first molding die is a rectangular groove, and at least a portion of the second belt-like body fitted to the first molding die has a rectangular cross section. The inside of the hollow formed by the first and second molds is a rectangular tube, and the first belt-like body is formed along each of three surfaces of the first mold except for the one open surface. The first driven belt-like body can be bent into a rectangular groove shape corresponding to the cross-sectional shape of the first forming die, and
5. The driven belt-shaped body according to claim 1, wherein said driven belt-shaped body can be bent into a rectangular groove shape corresponding to a shape of a fitting portion of said second molding die to said first molding die. Any of the molding equipment. 7. The first and second belt-shaped members and the first and second driven belt-shaped members are individually and endlessly wound around each other, and the first and second belt-shaped members are rotated. The molding apparatus according to any one of claims 1 to 6, wherein the first and second driven belt-shaped members are driven to rotate together with the first and second belt-shaped members. 8. The resin to be molded, which is initially liquid and is formed by attaching the resin to a resin alone or a fiber assembly which is cured while expanding in the molding passage, or a filler or a short fiber And the like, and the first and second
Has a desired mechanical strength, and the first and second driven belts have a releasing property from the resin cured body and the composite cured body thereof and a sealing property with respect to the resin liquid. The molding apparatus according to any one of claims 1 to 7, wherein: 9. A fold is provided along at least the moving direction of the first driven belt-like body so that the first driven belt can be bent in the forming passage in accordance with a cross-sectional shape of the first forming die. The molding apparatus according to any one of claims 4 to 8, wherein 10. A portion of at least a surface of the first and second driven belt-like bodies that comes into contact with the material to be molded,
The molding apparatus according to any one of claims 1 to 9, wherein the molding apparatus is impregnated with a fluorine-based resin.