JPS60179206A - Manufacturing device of resin holding sheet - Google Patents

Abstract

PURPOSE:To enable the resin leaking from the resin pool between both rolls to be effectively collected by connecting the auxiliary resin pool provided outside a side blade to the gap formed in between side blade edge and roll surface. CONSTITUTION:A coater roll 1 and a metering roll 2 are heated by the heating medium circulating inside so as to be kept at same surface temperature, and are arranged in a pair in parallel, and then are rotatably driven in one direction. In the space formed in between both rolls 1, 2, side blades 11, 11 are provided, and the resin pool 3 storing liquid resin 7a is formed. Outside the side blade 11, the auxiliary resin pool 15 surrounded by a blade 14 is provided correspondingly to the lower position in relation to the rotating direction of the metering roll 2. Liquid resin 7a entering into the gap between the resin plate 11a edge of the side blade 11 and the surface of the metering roll 2, is dragged into the upper auxiliary resin pool 15, accompanied with the rotation of the metering roll 2 and is compressed, whereby said resin leaks into the auxiliary resin pool 15. The resin leaking from the resin pool 3 is collected in the auxiliary resin pool 15 and does not drop on a floor.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention involves forming a resin reservoir between a pair of metering rolls and a cork roll, and applying a fixed amount of liquid resin in the resin reservoir to a base sheet. The present invention relates to an improvement in a manufacturing apparatus for a resin-supported sheet.

[Prior art]

A resin-supported sheet is a thin film of resin coated on one side of a base sheet, and in the prepreg manufacturing process, the resin-supported side is overlapped with reinforcing fibers arranged in a sheet-like manner, and then subjected to pressure treatment under heat. It is used as a material for transferring the supported resin to the reinforcing fiber side.

Conventionally, as a manufacturing device for such a resin carrier sheet, a heated cork roll and a metering roll are arranged facing each other, and side plates surround both sides of the space formed along the axial direction between the two rolls. By making it into a resin reservoir,
There is one in which a fixed amount of resin is transferred from the resin reservoir to the base sheet. However, since the edge of the side plate is placed close to the surfaces of both rolls through a small gap, the resin in the resin reservoir tends to leak out little by little from the small gap. In particular, the metering roll is movable relative to the cork roll in order to adjust the resin film thickness on the base sheet. This may increase the resin leakage from the resin reservoir, causing the resin to drip onto the floor and worsen the working environment.

[Purpose of the invention]

An object of the present invention is to provide a resin-carrying sheet manufacturing apparatus that can efficiently collect resin leaking from the resin reservoir formed between the coke roll and the metering roll. There is a particular thing.

[Structure of the invention]

To achieve the above object, the present invention has an edge between a cork roll and a metering roll that are arranged side by side in a pair, so as to cross the axial direction of both rolls and to have an edge close to the surfaces of the two rolls. In an apparatus for manufacturing a resin carrying sheet, the resin reservoir is formed by providing a side plate with a side plate, and the liquid resin retained in the resin reservoir is applied to the base sheet in fixed quantities. The auxiliary resin reservoir is provided and the auxiliary resin reservoir is communicated with a gap formed between the side plate edge and the roll surface.

Examples of the sheet forming the base of the resin-supported sheet of the present invention include double-sided sheets of paper such as kraft paper, roll paper, and glassine paper with a thickness of about 0.05 to 0.2 mm, clay, starch, polyethylene, polyvinyl alcohol, etc. A coating layer of a mouth sealant is provided, and a silicone or non-silicone mold release agent is provided on each coating layer, preferably a condensation reaction type or addition reaction type silicone of polydimethylsiloxane and polydimethylhydrodiene siloxane. A release paper coated with a release agent is preferably used.

Furthermore, as the resin applied to the base sheet, thermosetting resins such as epoxy resins, unsaturated polyester resins, phenol resins, and polyimide resins are preferably used.

[Embodiments of the invention]

The present invention will be explained below with reference to embodiments shown in the drawings.

In FIG. 1, 1 is a coater roll, and 2 is a metering roll. Both rolls 1.2 are heated to the same surface temperature by a heating medium circulating inside,
They are arranged in parallel in pairs with a gap 4 in between, and are driven to rotate in the same direction as shown by the arrows. In the space formed between both rolls 1 and 20 along the direction of their rotational axes, on both sides in the axial direction,
Side play 1-11 that crosses the axial direction.
11 is provided to form a resin reservoir 3 that stores liquid resin 7a.

Weir plates 10 and 10 are provided at the front and back along the longitudinal direction of the resin reservoir 3.
is provided.

A heating roll 6 is provided above the metering roll 1, and a block-shaped resin 7 is in contact with the surface of the heating roll 6 under its own weight. This block-shaped resin 7 is melted at the portion in contact with the heating roll 6, and the molten liquid resin 7
a is made to flow down into the resin reservoir 3 below along the guide plate 8.

On the other hand, on the downstream side in the rotational direction of the resin reservoir 3 on the surface of the cork roll 1, a liquid resin 7a is formed in the form of a film with a uniform thickness due to the gap 4 between the coke roll 1 and the metering roll 2. The metering roll 2 can be adjusted to move in the direction of the arrow AB, and by adjusting the movement, the gap 4 can be changed and the thickness of the resin film can be adjusted. Further, a sheet supply roll 9 made of an elastic material such as rubber is pressed to the lower part of the coater roll 1, and rotates in the same direction as the above-mentioned coke roll 1 as shown by an arrow. This sheet supply roll 9 continuously supplies a band-shaped base sheet 12 between it and the cork roll 1, and transfers the film-like liquid resin 7a formed on the surface of the cork roll 1 onto the surface of the base sheet 12. , a resin support sheet 13 is formed.

As shown in detail in Figures 2 and 3, the side plate 11 surrounding the side of the resin reservoir 3 is made of a resin having low frictional resistance, such as fluororesin (for example, polytetrafluoroethylene). It has a resin plate 11a inside, which is held on both sides by retaining plates 11b and llb. In addition, the edge of the resin plate 11a has a shape that follows the outer contours of the cork roll 1 and the metering roll 2, so as to seal the liquid resin 7a in the resin reservoir 3 through a small gap. .

An auxiliary resin reservoir 15 surrounded by the plate 14 is provided on the outside of the side plate 11 configured as described above, corresponding to a position on the downstream side in the rotational direction of the metering roller 2. A sealing material 16 made of an elastic material such as rubber is slidably fitted into the side of the plate 14 surrounding this auxiliary resin reservoir 15, and the position of this sealing material 16 is adjusted by an adjustment bolt 17 to The edge is brought into contact with the surface of the metering roll 2. In addition, on the side opposite to the sealing material 16 with the auxiliary resin reservoir 15 in between, the edge of the resin plate 11a of the side plate 11 is arranged so that a small gap is provided between it and the surface of the metering roll 2. It is sealed.

The small gap between the edge of the resin plate 11a and the surface of the metering roll 2 may be enlarged by adjusting the position of the metering roll 2 as described above. Therefore, the auxiliary resin reservoir 15 communicates with the small gap and also communicates with the resin reservoir 3 via this small gap. In addition, the sealing material 16
A small gap is also formed in a portion where the bottom surface of the auxiliary resin reservoir 15 sandwiched between the metal plate 11a and the edge of the resin plate 11a is close to the surface of the metering roll 2.

Although the auxiliary resin reservoir 15 having such a configuration is only provided on one side plate 11 in the figure, a similar auxiliary resin reservoir 15 is provided on the other side plate 11 with the resin reservoir 3 in between. is also provided.

When the above-mentioned resin support sheet manufacturing apparatus is operated, the liquid resin 7a that has entered the gap between the edge of the resin plate 11a of the side plate 11 and the surface of the metering roll 2 accompanies the rotation of the metering roll 2. Upper auxiliary resin reservoir 1
The resin is dragged toward the 5 side, becomes compressed, and leaks into the auxiliary resin reservoir 15. In addition, some of the liquid resin leaks out to the outside of the side plate 11 before reaching the auxiliary resin reservoir 15, but this resin is also entrained on the surface of the metering roll 2 and left in the auxiliary resin reservoir 15. The auxiliary resin reservoir 15 is removed from the small gap between the bottom edge of the metering roll 2 and the surface of the metering roll 2.
It will get inside and accumulate. Therefore, most of the resin leaking from the resin reservoir 3 is collected in the auxiliary resin reservoir 15 and does not accidentally fall onto the floor.

〔Effect of the invention〕

As described above, the resin support sheet manufacturing apparatus according to the present invention provides an auxiliary resin reservoir on the outside of the side plate surrounding the resin reservoir, and places the auxiliary resin reservoir between the edge of the side plate and the roll surface. Since the auxiliary resin reservoir is configured to communicate with the gap formed in the auxiliary resin reservoir, most of the liquid resin that is about to leak from the resin reservoir can be collected in the auxiliary resin reservoir.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a resin-supported sheet manufacturing apparatus according to the present invention, FIG. 2 is an enlarged side view showing the main parts of the same apparatus, and FIG. FIG. 1... Coke roll, 2... Metering roll 3
... Resin reservoir, 7a... Liquid resin, 11... Side plate, lla... Resin plate, Ilb... Holding plate,] 2... Base sheet, 13... Resin carrying sheet, 14...Plate, 15...Auxiliary resin reservoir. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

[Claims] A resin reservoir is formed by providing a side plate between a cork roll and a metering roll that are arranged side by side in a pair, the side plate crossing the axial direction of both rolls and having an edge close to the surface of both rolls. In a resin-carrying sheet manufacturing apparatus in which the liquid resin retained in the resin reservoir is applied onto the base sheet in fixed quantities, an auxiliary resin reservoir is provided on the outside of the side plate, and this auxiliary resin reservoir is applied to the edge of the side plate. 1. An apparatus for manufacturing a resin-supported sheet, characterized in that the resin support sheet is in communication with a gap formed between the part and the surface of the roll.