JPH02130106A - Production of prepreg sheet different in fiber angle - Google Patents

Abstract

PURPOSE:To prepare a prepreg having a desired fiber angle with high efficiency by cutting a UD prepreg sheet at the desired fiber angle to bring the cut sheets face to face with each other and automatically performing the bonding the taking-up of a tape. CONSTITUTION:A revolving table 3 is manually set at an arbitrary fiber angle thetawith respect to the take-up direction of a take-up apparatus 8. Thereafter, a UD prepreg sheet 11 is moved to the position by operating an unwinding apparatus 1, the first feed roll apparatus 2 and the brush roll 16a of a sheet feed apparatus 5 and cut by a cutting device 4 so as to become a determined sheet width. Next, the prepreg sheet 12 is fed to a guide plate 13 to be brought into contact with the left side of the previous prepreg sheet 12 by rotating a brush roll 16b while the brush roll 16a is rotated. Next, the upper parts of the contact parts of the prepreg sheets 12, 14 are pressed by a press plate 22 and the lower parts of the contact parts are bonded by a tape bonding machine mechanism 29. The prepreg sheet 12 after bonding is taken up by a take-up apparatus 8 while supported by a guide stand 15.

Description

[Detailed Description of the Invention] [Objective of the Invention] [Technical Field of the Invention] The present invention relates to a manufacturing lid for an FRP prepreg sheet, and particularly to a lid for producing an FRP prepreg sheet, which can be manufactured from an FR or P prepreg sheet having a fiber angle of zero degrees to a lid having an arbitrary fiber direction. This relates to a device for manufacturing all FRP prepreg sheets.

<Prior art> PR, P prepreg sheets (hereinafter referred to as prepreg sheets) are made by arranging carbon fibers, Kevlar fibers, glass fibers, etc. in a certain direction or forming them as a fabric, and impregnating them with a thermosetting resin. It is composed of By the way, prepreg sheets currently on the market &! This is an original prepreg sheet that extends along the fiber direction, that is, the fiber angle is 0 degrees, and is called a UD prepreg sheet. Therefore, in actual use, for example, each prepreg sheet has a total of 45°-9
If you try to laminate the fibers at an angle of 00 = 45° - 0°, you will end up with a lot of wasted end fabric, so a prepreg sheet with a full fiber angle of 45°JP911° is desired.

<Problem to be solved by the invention> Currently, there is no prepreg sheet with arbitrary fiber angles (eg 45°, 90')', so UD flipreg sheets are manually cut into small pieces with desired fiber angles. All of the fibers are arranged to have the desired fiber angle and pasted together with tape, but cutting, rearranging, and pasting with tape are difficult and inefficient. The present invention
The overall objective is to provide a device that can produce prepreg sheets with a desired fiber angle with high efficiency by automatically cutting the D prepreg sheet to the desired fiber angle, butting, pasting tape, and winding. 0 [Structure of the Invention] <Means for Solving All Problems> The present invention is an apparatus for producing a prepreg sheet raw gold sheet with a fiber angle θ from a U D prepreg sheet with a fiber angle of 0 degrees, which An unwinding device for unrolling the entire prepreg sheet, a first feed roll device for pulling out and feeding the UD prepreg sheet to a predetermined length from the unwinding device, and a UD prepreg fed by the first feed roll device. A cutting device for cutting the sheet into the predetermined lengths at an angle θ with respect to the fiber direction, and a prepreg sheet after cutting are brought into contact side by side with the cut prepreg sheet. A device is used to position the sheets and apply the tape to bond all contact areas with tape, and a sheet feeding device is used to position the sheets and apply the tape to the device, and a sheet feeding device is used to position and apply the tape. The pasting machine is equipped with a second feed roll device for feeding the prepreg sheets pasted by the device in the direction in which the prepreg sheets are arranged, and a device for winding up the entire prepreg sheet fed by the second feed roll device. , an unwinding device and a first feed roll device,
The second feed roll device and the winding device are arranged to substantially match the fiber angle θ.

In addition, the unwinding device, the first feed roll device, the sheet positioning and tape pasting device, and the sheet feeding device,
It is preferable that at least one of the two groups, the second feed roll device and the winding device, be installed on a rotating table so as to rotate integrally with respect to the other group.

Function> The UD prepreg/t stored in the unwinding device is
The sheet is conveyed by a feed roll device, and cut by a cutting device into a sheet having a predetermined width at an angle θ of 1 to the fiber direction. After that, it passes through the sheet feeding device and is butted side by side with the previously cut prepreg sheet.
Tape is attached using a device. The pasted prepreg sheets become a continuous prepreg sheet with a fiber angle θ, are conveyed by a second feed roll device, and finally wound up by a winding device.

In addition, the unwinding device, the first feed roll device, the sheet positioning and tape pasting device, and the sheet feeding device,
When at least one of the two groups of the second feed roll device and the winding device is installed on a swivel table to rotate integrally with respect to the other group, the fiber angle is The θ ligation can be easily and arbitrarily changed.

<Example> Embodiments of the present invention will be explained with reference to FIGS. 1 to 7.

In FIG. 1, l is an unwinding device, which is installed at the upper left end of the swivel table 3, which will be described later, in FIG. Brake (not shown)
A light vehicle like this (a mechanism that can apply the brakes) is making money.

2 is a first feed roll device provided on the swivel table 3, which includes two rollers for completely unrolling the UD prepreg sheet 11 from the unwinding device 1, and a drive mechanism for driving them by a predetermined amount. The UD prepreg sheet is unrolled from the unwinding device 1 by a predetermined length and moved to a predetermined position.

The swivel table 3 is set to be equal to the fiber angle θ to be manufactured with respect to a guide table 15 extending in the winding direction of a winding device 8 for fully winding the prepreg sheet 12 having an arbitrary fiber angle θ2, which will be described later. ing.

Reference numeral 4 denotes a cutting device for cutting the UD prepreg sheet 1lt, and it is installed on the floor straddling the swivel table 3 so that the cutter blade 4a (see FIG. 6) is parallel to the guide table 15. The swivel table 3 on which the unwinding device 1, the first feed roll device 2, the sheet feeding device 5, and the sheet positioning and tape applying device 6, which will be described later, are mounted is centered around the center position of the cutting blade width of the cutting device 40. For example, as shown in FIG. 5, it can be manually rotated to any angle position, and by driving the cutter blade 4a up and down with air pressure, etc., the first feed roll device 2 The unwound UD prepreg sheet 11 can be cut at any angle θ with respect to the fiber direction.

Reference numeral 5 denotes a sheet feeding device provided along the sheet receiving surface of the swivel table 3. This sheet feeding device 5 is for transporting the prepreg sheet 12 cut by the cutting device 4 to a device 6 for sheet positioning and tape pasting in all subsequent processes, and is for feeding the prepreg sheet 12 to a guide plate provided at the tip of the turning table 3. A plurality of circular bran rolls 16a made of soft nylon fibers are provided in the feeding direction until they hit the guide plate 13, and a prepreg sheet 12 is provided in the feeding direction to the right in FIG. 1 along the guide plate 13. A similar bran roll 16b with 1.6C left. Note that the blank rolls 16b and 16c are used in selection 1- depending on the installation angle θ of the turning table 3.

/- Prepreg sheet 1 sent from tote feeding device 5
2&'r,... In Fig. 1, the lower side is the guide plate 13.
The prepreg sheet 14 that is in contact with and whose diagonal right side is the one in front
They are positioned and stopped so that they are in contact with the similarly diagonal left side of each. At this position, the upper portions of the abutting portions of these two prepreg sheets 12 and 14 are received as described below, and the lower portions are pasted together by a mechanism 29 for tape application as described later.

To further explain the configuration of the device 6 for sheet positioning and tape application based on FIGS. 2 to 4, reference numeral 21 denotes a presser plate 22 that holds the entire upper part of the contact area of the two prepreg sheets 12 and 14. It is a cylinder, and the guide surface 23a of the swivel table 30 and the guide surface 23b of the guide table 15 are spaced apart from each other at the lower part of the abutting part of the two prepreg sheets 12 and 14. The guide surfaces 23a and 23b are arranged to face each other, and have a structure in which the force applied to the presser plate 22 is received from these guide surfaces 23a and 23b. In addition, in Figure 2, 10 is prepregsy) 12.1
This is the back paper of No. 4.

In FIG. 3, in the tape feeding mechanism 29, the guide surfaces 23a and 23t shown in FIG. 2 are moved by the moving cylinder 28.
) along the presser plate 22. 26 C is a tape roll for pasting together the two prepreg sheets 12 and 14. Tape 27 is a tape roll for unrolling the entire roll.
, Paste the two prepreg sheets 1 through the roll 24
The tape 27 is pressed and supplied to the bonding surface of 2.14, and the tape 27 separates the two prepreg sheets 12.14.
Attach the bottom bonding surfaces of the . FIG. 4 shows the entire bonded state.

Returning to FIG. 1, 7 is the second feed roll device;
This device is similar to the first feed roll device 2 described above, but as shown in Fig. 6.7, an unwinding mechanism 7a similar to the unwinding device 1 is attached to the upper part of this device.
The wide polyethylene cover film 17 can be completely rolled up together with the prepreg sheet 12 after lamination. 8 is a winding device, f-+! l)
, a mechanism in which a winding motor is attached instead of a powder brake (not shown) to the mechanism of the unwinding device 1, and the laminated prepreg sheet is re-shaped into the original fabric at 12.14'. It is a winding device.

Since the structure is as described above, according to this embodiment, it is possible to manufacture the prepreg sheet 12 as described below.

The prepreg sheet 12 having an arbitrary fiber angle θ is manually adjusted to an arbitrary fiber angle with respect to the winding direction of the winding device 8 which winds the prepreg sheet 12 having an arbitrary fiber angle θ. The UD prepreg sheet 11 on the unwinding device 1 located on the swivel table 3 by setting θ
is set to the same fiber angle θ as the rotating table 3. After this U
The D prepreg sheet 11 is fed to the unwinding device 1, the first feed roll device 2, and the brush roll 16 of the sheet feeding device 5.
The sheet is moved to a predetermined position by the operation a, and the sheet is cut into a predetermined sheet width by a cutting device 4.

Next, in order to send the cut prepreg sheet 12 to the device 6 for the next step of positioning and tape application, the brush roll 16a' is rotated and the prepreg sheet 12 is sent to the guide plate 13, and then the brush roll 16a is The brush roll 16bk is rotated while the brush roll 16bk is being rotated fully, and the prepreg sheet 12 is conveyed to a so-called positioning point where it is brought into contact with the left side of the prepreg sheet 14 that is cut first and is located on the right side.

Here, the prepreg sheets 12 and 14 have sufficient rigidity and thickness to enable positioning by contacting each other.

Next, at this position, the entire upper part of the two prepreg sheets 12 and 14 in contact is pressed by the pressing plate 22, and the entire lower part of the contact part is pasted together by the mechanism 29.

The prepreg sheet 12 after being laminated is supported by the guide table 15 and transferred to the second feed roll device 7 for the next step.
The prepreg sheet 12 having an arbitrary fiber angle θ is transported and wound up by the winding device 8. At this time,
Since the surface of the prepreg sheet 12 has adhesive properties, a series of operations such as unwinding and pasting shown in Fig. 6.7 are repeated in sequence to form a prepreg sheet with an arbitrary fiber angle.
The second original fabric can be manufactured easily and accurately.

In addition, since the length of the guide stand 15 to the left in FIG. 1 changes depending on the installation angle θ of the swivel stand 3, it is preferable to separate it and provide it detachably and attach it as necessary.
It goes without saying that the guide plate 15 may partially support the prepreg sheet 12 at appropriate intervals.In addition, the guide plate 13 can also be mounted on the swivel table 3, as shown in FIG.
The installation position changes completely depending on the installation angle θ.

In the embodiment described above, the cutting device 4, the second feed roll device 7, and the winding device 8 are fixedly installed, and the unwinding device 1, the first
Although an example has been shown in which the feed roll device 2, sheet positioning and tape pasting device 6 and sheet feeding device 5 are rotated by the rotating table 3, these may also be fixedly installed, and the second feed roll device 7 and winding device 8'ff: it may be made to rotate. It goes without saying that when the winding side is turned, the installation angle of the cutting device 4 must also be changed in accordance with the turning angle.

〔Effect of the invention〕

As described above, according to the prepreg sheet manufacturing apparatus of the present invention, a prepreg sheet material having an arbitrary fiber angle can be easily and highly efficiently manufactured from a UD prepreg sheet material.

[Brief explanation of drawings]

1 to 7 show examples of the present invention, in which FIG. 1 is a plan view of the general configuration of the entire device, FIG. 2 is a cross-sectional view showing a portion of the sheet positioning device, and FIG. A-A in Figure 2
Tape attachment shown in section by line is a cross-sectional view of the device, No. 4
The figure is a sectional view taken along line B-B in Figure 3 after lamination, and Figure 5 is the installation angle of the swivel base in Figure 1.
690' A schematic configuration plan view of the entire device showing a mental state,
6 is a front view of FIG. 5, and FIG. 7 is a right side view of FIG. 5. ■... Unwinding device, 2... First feed roll device, 3... Swivel base, 4...
Cutting device, 5... Net feeding device, 6...
・Sheet positioning and chip 7 pasting are done by the device 7...
...Second feed roll device, 8... Winding device, IO... Sheet backing paper, 11...
・UD prepreg sheet, 12... Prepreg sheet, 13... Guide plate, 14...
...Previous Buripreg sheet, 15...Guidance stand, 16a, 16b 116C...Brush roll, 17...Polyethylene cover film, 21...・Pushing cylinder, 22...
... Pressing plate, 23a, 23b... Guide surface,
24...Pasting is done by roll, 25...
・f-7" feed roll, 26...tape roll, 27...tape, 28...
Tape moving cylinder, 29... Tape pasting mechanism, fiber angle... θ.

Claims (1)

[Claims] 1. An apparatus for producing a prepreg sheet material having a fiber angle θ from a UD prepreg sheet having a fiber angle of 0 degrees, comprising an unwinding device for unwinding the UD prepreg sheet; A first feed roll device for pulling out and feeding the UD prepreg sheet a predetermined length from the feeding device, and a first feed roll device for feeding the UD prepreg sheet by drawing it out to a predetermined length from the feeding device; A cutting device for cutting each predetermined length, and sheet positioning and tape for arranging and abutting the cut prepreg sheet next to the previously cut prepreg sheet and pasting the abutting portions with tape. A pasting device, a sheet feeding device for conveying the prepreg sheet cut by the cutting device to the sheet positioning and tape pasting device, and a prepreg sheet pasted by the sheet positioning and tape pasting device are the same. A second feed roll device for feeding the prepreg sheet in the arrangement direction, and a winding device for the prepreg sheet fed by the second feed roll device, the unwinding device and the first feed roll device . A manufacturing apparatus for prepreg sheets having different fiber angles, characterized in that the second feed roll device and the winding device are arranged to substantially match the fiber angle θ. 2. At least one group of the two groups: an unwinding device, a first feed roll device, a sheet positioning and taping device, and a sheet feeding device, and a second feed roll device and a winding device, with respect to the other group. 2. The apparatus for producing prepreg sheets with different fiber angles according to claim 1, wherein the apparatus is installed on a rotating table so as to rotate integrally.