JPH06210745A - Device for continuous manufacture of formed body - Google Patents

Abstract

PURPOSE:To prevent burrs from being generated on a form at the inlet of a forming path and produce the stable formed body by making an endless belt on a lower face side longer than three belts constituting other faces and providing the endless belt on the lower face side in such a manner that its end is projected ahead of the ends of the three belts constituting the other faces. CONSTITUTION:An endless belt 3 on a lower face side, which constitutes a forming path 6, is made longer than other three endless belts 2, 4, 5 and provided so that the end of the endless belt, on the lower face side is projected ahead of the ends of the other endless belts at the inlet A of the forming path. In a device for continuous manufacture of a form, which comprises such a constitution, a reinforcing fiber material K, such as glass fiber, etc., impregnated with a foaming and setting resin 18 first placed on the endless belt 3 on the lower face side, which is projected ahead of the other endless belts 2, 4, 5, and is then led into the forming path 6. Thereby, the slack and the like of the reinforcing fiber material K, which may be caused when it is drawn in at the inlet A of the forming path, can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously forming a molded body for manufacturing a foamed resin molded body used for various purposes such as sleepers and building materials.

[0002]

2. Description of the Related Art In general, foamed resin moldings used for sleepers, various building materials, etc. are manufactured by a continuous molding apparatus. This continuous molding apparatus is, for example, disclosed in Japanese Patent Application No. 3-242162, in which the upper, lower, left and right surfaces of a rectangular tubular molding passage are formed by four endless belts of the same length. Reinforcing fiber materials such as glass fibers impregnated with a foaming curable resin liquid were supplied to the passages to continuously produce a long foamed resin molded body.

[0003]

However, in the conventional continuous molded article manufacturing apparatus, as shown in FIGS. 5 to 7, at the belt turn portion (the portion indicated by B in the figure) which is the molding passage inlet A, the firing is performed. Alignment of the reinforcing fiber material K impregnated with the curable resin liquid is poor, and the reinforcing fiber material K sags. In this case, the reinforcing fiber material K is caught between the end of the side surface endless belt C and the lower surface side endless belt D (portion (a) in the figure), and the lower surface of the endless belt C and the upper surface of the endless belt D are separated. The gap becomes large, the burr of the reinforcing fiber material K flows out from the gap, and it adheres to the roller that runs the endless belt to make it difficult for the roller to rotate, or the resistance between the roller and the endless belt becomes large. Can no longer be molded into
There was such a problem.

Therefore, in order to prevent the above-mentioned biting of the reinforcing fiber material, it may be possible to narrow the width (W) of the reinforcing fiber material K at the inlet A of the molding passage. However, the optimum molding condition is that the position E where the reinforcing fiber material K is fired and filled in the molding passage is as close to the entrance of the molding passage as possible for molding control. In this case, even if the width (W) of the reinforcing fiber material K is narrowed at the belt turn portion B, the effect of preventing the reinforcing fiber material from being caught is small.

The present invention has been developed in view of the above points, and an object of the present invention is to prevent the occurrence of burrs at the inlet of the molding passage and continuously obtain a desired stable molded body. It is an object of the present invention to provide an apparatus for continuously manufacturing a molded body that can be manufactured by performing

[0006]

The present invention has the following constitution in order to effectively achieve the above object. That is, it is designed to be rotated by the drive device.
Reinforcing fiber material such as glass fiber impregnated with a foam-curing resin liquid is supplied to the molding passage configured to form the upper, lower, left, and right surfaces by two endless belts, and the foam-curing resin is formed in the molding passage. In a continuous molded body manufacturing apparatus capable of continuously molding a long molded body by foaming and curing a liquid, an endless belt on the lower surface side that constitutes the molding passage is provided with three endless belts that constitute other surfaces. The endless belt is made longer than the endless belt, and the endless belt end on the lower surface side is provided so as to project from the molding passage inlet to the end of the three endless belts forming the other surface.

[0007]

With the above-mentioned structure, the reinforcing fiber material such as glass fiber impregnated with the foaming curable resin liquid is first placed on the lower endless belt protruding before the other endless belts, Since it is guided into the forming passage as it is, the alignment of the reinforcing fiber material at the inlet of the forming passage is not deteriorated, and the reinforcing fiber material is not sagged, so that the reinforcing fiber material is not easily caught. In addition, in the portion where the lower surface side endless belt and the side surface endless belt are engaged with each other, a sufficient distance can be secured between this portion and both ends of the reinforcing fiber material, and the reinforcing fiber material can be prevented from being caught.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. In the figure, reference numeral 1 is a continuous molding apparatus for molded articles according to one embodiment of the present invention. The apparatus 1 of this embodiment is a rectangular tube-shaped molding apparatus for continuously manufacturing a long molded article. Reinforcing fiber material K such as glass fiber impregnated with the foaming curable resin liquid is supplied to the passage 2 to move the molding passage 6 into
One endless belt 2, 3, 4, 5 is surrounded by one endless belt 2, 3, 4, 5 and one end 2a, 3a, 4a, 5a in the longitudinal direction of each endless belt 2, 3, 4, 5 is provided with a predetermined other endless belt 3, 4, It is arranged so as to be slidable on the inner surfaces of 5, 2. At least the three endless belts are movably supported by respective movable means, and these endless belts can be arbitrarily moved to freely change the cross-sectional shape of the molding passage 6.

The molding passage 6 which is an essential part of the present invention.
The endless belt 3 on the lower surface side is made longer than the other three endless belts 2, 4, 5, and at the molding passage inlet A of the molding passage 6, the endless belt end on the lower surface side is the other endless belt end. It is provided so as to project further forward (see FIG. 2). By the continuous molding apparatus 1 having the above-mentioned structure, the reinforcing fiber material K such as glass fiber impregnated with the foaming curable resin liquid first protrudes before the other endless belts 2, 4, 5. Since it rides on the endless belt 3 on the lower surface side and is guided into the molding passage 6 as it is, it is possible to prevent the slackening of the reinforcing fiber material K that occurs when the reinforcing fiber material K is pulled in at the molding passage inlet A.
It is possible to eliminate the state in which the reinforcing fiber material K is easily bitten.

Further, at the portion X where the lower surface side endless belt 3 and the side surface side endless belts 4 and 5 are engaged with each other, a sufficient distance t from the end of the reinforcing fiber material K can be ensured, and there is no biting. The distance T (see FIGS. 3 and 4) between the return portion of the upper surface side endless belt 2 and the lower surface side endless belt 3 is preferably T ≧ R. (R is the return diameter of the side surface side endless belt 4 (5).) Incidentally, in the continuous molded body manufacturing apparatus of the above embodiment, the molding passage 6 is used.
The cross-sectional shape of the molding passage 6 can be freely changed. However, a fixed type device in which the cross-sectional shape of the molding passage 6 has a predetermined cross-sectional shape is used in addition to the endless belt on the lower surface, which is the main part of the present invention, on another surface. The endless belt may be made longer.

[0011]

As described above, in the continuous molded body manufacturing apparatus of the present invention, the endless belt on the lower surface side forming the molding passage is made longer than the other three endless belts,
At the entrance of the forming passage, the endless belt end on the lower surface side is provided so as to protrude in front of the other endless belt ends, so that the reinforcing fiber material is the lower surface side protruding first in front of the other endless belt. Since it rides on the endless belt and is guided into the molding passage as it is, it is possible to prevent the slackening of the reinforcing fiber material that occurs when retracting at the inlet of the molding passage. Therefore, it is possible to continuously produce a molded product having a more stable quality efficiently without stopping the device by biting the reinforcing fiber material.
In addition, at the portion where the lower surface side endless belt and the side surface endless belt engage with each other, a sufficient distance can be secured between this portion and both ends of the reinforcing fiber material, and the reinforcing fiber material does not get caught.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an apparatus for continuously forming a molded body according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a main part of an embodiment according to the present invention.

FIG. 3 is an explanatory diagram of a state at the inlet of the molding passage as viewed from the plane.

FIG. 4 is an explanatory view of a state at the inlet of the molding passage as viewed from the side surface direction.

FIG. 5 is a simplified perspective view of a molding passage inlet of a conventional molding product continuous manufacturing apparatus.

FIG. 6 is an explanatory view of a conventional molding passage inlet viewed from a plane direction.

FIG. 7 is an explanatory view of a state of a conventional molding passage inlet viewed from a side surface direction.

[Explanation of symbols]

 1 ... Molded product continuous manufacturing apparatus, 2, 3, 4, 5 ... Endless belt, 6 ... Molding passage,

Claims (1)

[Claims] 1. A drive device is arranged to rotate 4
Reinforcing fiber material such as glass fiber impregnated with a foam-curing resin liquid is supplied to the molding passage configured to form the upper, lower, left, and right surfaces by two endless belts, and the foam-curing resin is formed in the molding passage. In a continuous molded body manufacturing apparatus capable of continuously molding a long molded body by foaming and hardening a liquid, an endless belt on the lower surface side forming the molding passage is provided with three endless belts forming other surfaces. An apparatus for continuously manufacturing a molded body, which is longer than an endless belt and is provided so that an end of the endless belt on the lower surface side from an inlet of a molding passage protrudes ahead of ends of three endless belts forming another surface.