JPS63172634A - Apparatus for manufacturing fiber reinforced plastic - Google Patents

Abstract

PURPOSE:To recover effectively a protruded synthetic resin raw material, by providing a gate plate scooping up the raw resin material being protruded on both sides of a laminate and on the surface of a conveyer belt and transferring it on the uppermost layer of the laminate. CONSTITUTION:A manufacturing apparatus 1 has a plurality of supplying holes 3A of a foamable raw resin material 3 and supplying rollers 4A of a fiber mat 4 in this order and at the sending-out part 6 of a laminate 5, a gate plate 7 scooping up the raw resin material being protruded on both sides 5A and on the surface of a moving conveyer belt 2 and transferring it on the uppermost layer of the laminate 5. The resin raw material 3 and the fiber mat 4 are successively supplied and the laminate is prepared while it is being impregnated with the resin by means of each roller 4A...4A. In this process, the resin is protruded, but at the sending-out part 6, the resin is scooping up by means of scrapers 7A, 7A, transferred to the upper face of the laminate 5 by means of a guide plate 7B and moreover made into a constant thickness by means of a doctor knife 7C to become the uppermost layer of the laminate, which is thereafter sent out.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an apparatus for manufacturing fiber reinforced plastics.

[Conventional technique]

Conventionally, when manufacturing fiber-reinforced plastics, a plurality of pairs of resin raw material supply ports B and fiber mat supply rollers C are arranged in this order on the feed start end side of a conveyor belt A as shown in FIG. 3, and a laminate is formed. Then, a fiber-reinforced plastic board is manufactured by transferring this to a heating furnace for curing or the like.

[Problems with conventional technology]

By the way, in the case of using the above method, since the laminated material is pressed by the roller C, the supplied resin raw material protrudes to the side,
Furthermore, the raw materials are deposited on both sides of the conveyor belt A, and these raw materials are transferred to the curing process without being reused, resulting in a lot of wasted raw materials, and the molded plates after molding and curing. Since the above-mentioned protruding portion had to be cut, there were problems such as an increase in the number of steps.

In particular, when the resin raw material is a two-component curing type resin, the above problem is significant.

[Problems solved by the invention]

In view of the above-mentioned problems, the present invention has been made with the aim of effectively recovering and reusing the synthetic resin raw material that protrudes before molding and hardening.

[Technology to solve problems]

That is, in the fiber reinforced plastic manufacturing apparatus of the present invention, a plurality of pairs of resin raw material supply ports and fiber 77) supply rollers are provided in this order on the feed start end side of the conveyor belt, and the resin raw material and fibers laminated in multiple layers are provided. A gel plate is provided at the delivery section of the laminate with the mat to scoop up the resin raw material protruding from both sides of the laminate and the surface of the conveyor heald and transfer it to the top layer of the laminate. Characteristics [Example] Next, the present invention will be explained by referring to an example.

FIG. 1 is a side view of an embodiment of the invention, and FIG. 2 is a perspective view of essential parts of the embodiment.

In the fiber reinforced plastic manufacturing apparatus 1 of the present invention, a plurality of pairs of foamed resin raw material 3 supply ports 3A and fiber mat 4 supply rollers 4A are provided in this order on the feed start end side of the feed conveyor belt 2, and the fiber mats 4 are laminated in multiple layers. In the delivery section 6 of the laminate 5 of the resin raw material and the fiber mat 4, both side portions 5A (
2), and a gel plate 7 that scoops up the resin raw material 3 protruding from the surface of the traveling conveyor belt 2 and transfers it to the uppermost layer of the laminate 5.

As shown in FIG. 2, the gate plate 7 has scraper portions 7A, 7A that are in contact with both side portions 5A, 5A of the stacked body 5 and whose lower end is in contact with the surface of the conveyor belt 2, and this scraper portion 7A. A.? A guide plate 7B is provided upright on the outer surface of A and collects the scraped resin raw material 3 onto the upper surface of the laminate 5, and is integrated with this guide plate 7B and is constructed with a slight gap S from the upper surface of the laminate 5. It is composed of a doctor knife section 7C.

(Function) When manufacturing fiber-reinforced plastic using a fiber-reinforced plastic manufacturing apparatus, the present invention sequentially supplies the resin raw material 3 and the fiber mat 4 as in the conventional apparatus, and each roller 4A.
By pressing the fiber mat 4 with 4A, a laminate is manufactured while impregnating it with resin.

At this time, resin protrudes onto both sides of the laminate 5 or onto the conveyor belt 2.

When these laminated bodies 5 reach the delivery section 6, the conveyor belt 2
And since the laminate 5 is moving relative to the gate plate 7, is the resin 3 protruding or deposited on the scraper part? A
,? It is scooped up by A and transferred to the upper surface of the laminate 5 by a guide plate 7B, and further here by a doctor knife part 7C.
It is made to have a constant thickness, becomes the uppermost resin layer of the laminate 5, and is sent to the next process.

Note that when a two-component curing resin is used as the synthetic resin raw material 3, curing may be restarted due to reaction heat during mixing of the two components. Therefore, it is convenient to install the entire device in a cooling device 8 as shown in FIG. 1 to delay the natural hardening due to reaction heat, thereby completing the recovery action at the gate plate 7.

Further, as shown by 9 in FIG. 1, a resin raw material supply port may be further provided in a portion immediately before the gate plate 7 to adjust the layer thickness of the uppermost synthetic resin raw material layer.

〔effect〕

As explained above, when a synthetic resin raw material and a fiber mat are sequentially laminated to mold fiber-reinforced plastic, the raw material can be recovered at the same time during molding, and can be used as a molding raw material to form one layer. This reduces waste of synthetic resin raw materials, and since the cross-sectional shape of the molded product is regulated by the gate plate, the shaping process is also labor-saving.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a perspective view of essential parts of the embodiment, and FIG. 3 is an explanatory diagram of a conventional example. T/En, L) 3IiJ

Claims (3)

[Claims] (1) A plurality of pairs of resin raw material supply ports and fiber mat supply rollers are provided in this order on the feed start end side of the conveyor belt, and the sending portion of the laminate of the resin raw material and fiber mat stacked in multiple layers is provided with a resin raw material supply port and a fiber mat supply roller in this order. A fiber-reinforced plastic manufacturing apparatus, characterized in that a gate plate is provided for scooping up the resin raw material protruding from both sides of the laminate and the surface of the conveyor belt and transferring it to the uppermost layer of the laminate. (2) The fiber-reinforced plastic manufacturing device according to claim 1, wherein the entire device is covered with a cooling device. (3) The fiber-reinforced plastic manufacturing apparatus according to claim 1 or 2, wherein the foamed resin raw material is a two-component curing resin.