JPH05269881A - Method and apparatus for producing prepreg laminated material - Google Patents

Abstract

PURPOSE:To allow the leading end part of a precut prepreg to coincide with a lamination start position. CONSTITUTION:A prepreg tape is cut into a predetermined shape to obtain a precut prepreg tape 13 consisting of a precut prepreg 11 from which an unnecessary part is removed and release paper 12 and the release paper 12 is released from the precut prepreg tape 13 to laminate the precut prepreg 11 separated from the release paper 12 to a part to be laminated while a laminating roll 25 is relatively moved. In this case, a mark is applied on the release paper 12 at a position separated from the leading end part of the precut prepreg 11 by a predetermined distance and detected by a detector to accurately set the leading end part of the precut prepreg 11 to a lamination start position to produce a prepreg laminated material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects the position of the tip of a precut prepreg when a prepreg laminated material is manufactured by laminating precut prepregs which are precut into a predetermined shape and spread on a release paper. The present invention relates to a method for manufacturing a prepreg laminated material and a device therefor for always laminating the tip portion at the starting position for lamination.

[0002]

2. Description of the Related Art Conventionally, prepregs have been laminated by cutting a long continuous prepreg tape on a laminating device by a cutting device so that a tip portion is first cut into a laminating start pattern, and then a prepreg tape is fed and laminated. After cutting to the end pattern, rewind the prepreg tape,
It is performed by aligning the tip of the pre-cut pre-cut prepreg with the stacking start point.

The operation of cutting the prepreg prepreg and aligning the tip of the prepreg prepreg with the starting point of layering are performed by numerically controlling the prepreg tape feeder.

Therefore, the stacking starting point of the precut prepreg is determined by the feeding accuracy of the feeding device that feeds the precut prepreg tape to a predetermined position below the laminating roll.

[0005]

However, since the feeding amount of the feeding device is not always constant due to slippage and the like, the feeding of the precut prepreg tape varies, so that the stacking start points of the precut prepregs do not match. However, the lamination becomes uneven, which causes the quality of the laminated prepreg laminated material to deteriorate. In addition, the method of cutting a long continuous prepreg tape in accordance with a laminating pattern on a laminating device is inefficient. Therefore, a method has been proposed in which the pre-cut prepreg tape is pre-cut by another pre-cut prepreg manufacturing device according to the stacking pattern and spread on the release paper, and the pre-cut prepreg tape is sequentially stacked. According to this method, although the efficiency is improved, the stacking accuracy is not improved, and errors are accumulated, so that the accuracy is lowered. Since the tip shape of the precut prepreg is cut into various angles and shapes depending on the lamination pattern, it is difficult to directly grasp the position of the tip and control the position. It was

In view of this, the present invention has been made in view of the above circumstances, and has an object to provide a method for manufacturing a prepreg laminated material in which the tip portion of the precut prepreg is surely aligned with the starting position for lamination, and an apparatus therefor. is there.

[0007]

In the present invention for achieving the above object, a prepreg of a prepreg tape composed of a prepreg and a release paper is precut into a predetermined shape by a cutting device, and unnecessary portions are removed. A prepreg laminated material in which a release paper is separated from a precut prepreg tape composed of a precut prepreg and a release paper, and the precut prepreg separated from the release paper is pressed and laminated while moving the laminating roll relatively to the part to be laminated. In the manufacturing method of, a mark for detecting the tip position of the precut prepreg is provided on the release paper at a position at a predetermined distance from the tip of each precut prepreg that has been precut to a predetermined shape, and this mark is applied to the precut prepreg. Positioning of the tip of the pre-cut prepreg by detecting with a detector during lamination The pre-cut prepreg is characterized in that the pre-cut prepreg is laminated such that the tip portion of the pre-cut prepreg is aligned with the starting position for lamination, and the mark is composed of one or more elements. The method for producing a prepreg laminated material according to claim 1, wherein the pre-preg prepreg has the information of the pre-cut prepreg at the same time as the position of the front end portion of the prepreg tape. A cutting device that pre-cuts into a predetermined shape without cutting, and a pre-cut prepreg of a pre-cut prepreg tape and a release paper from which unnecessary parts have been removed by this cutting device, and the pre-cut prepreg of the tape is pressed against the layered portion to be laminated. In a prepreg laminated material manufacturing apparatus having a laminating roll device for A mark giving device for giving a mark on the release paper at a position at a predetermined distance from the tip of the recut prepreg, and a detecting device for detecting the mark and positioning the tip of the precut prepreg at the stacking start position. An apparatus for manufacturing a prepreg laminated material, which comprises the prepreg, further comprises: an unwinding section and a winding section, and the prepreg is separated from the prepreg at a predetermined position between the unwinding section and the winding section. In a pre-cut prepreg tape manufacturing apparatus equipped with a cutting device that pre-cuts a prepreg of a prepreg tape consisting of a pattern paper into a predetermined shape without cutting the release paper, the tip portion of the pre-cut prepreg pre-cut into a predetermined tip shape 2. A mark applying device for applying a mark from a position to a release paper at a predetermined position is provided. The apparatus for producing a pre-cut prepreg tape used in the method for producing a prepreg laminate according to item 2 is defined in claim 4, and a coating layer removing device for release paper is further provided together with a marking device, and the coating layer for removing release layer is removed by the coating layer removing device. The apparatus for producing the precut prepreg tape according to claim 4, wherein the mark applying device is arranged so as to face the portion, and a dryer is provided near the mark applying device. An apparatus for producing the precut prepreg tape according to claim 5,
It is what

[0008]

In the above-mentioned prepreg laminated material manufacturing apparatus, the prepreg of the prepreg tape is precut into a predetermined shape by the manufacturing apparatus of the precut prepreg tape formed on this manufacturing apparatus or separately, and a predetermined distance from the tip of the precut prepreg prepreg. A mark for detecting the position of the tip of the precut prepreg is provided directly on the release paper at the position of or by peeling off the coating layer of the release paper, and this mark is detected by the detection device when the precut prepreg is laminated to detect the precut prepreg. By stacking while positioning the tip position, the tip part of the precut prepreg is made to coincide with the stacking start position.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS.

The prepreg laminated material manufacturing apparatus has a precut prepreg tape manufacturing apparatus 1 shown in FIG. 1 and a laminating apparatus 2 shown in FIG.
And a marking device 4, and the laminating device 2 includes a laminating roll device 5 and a detecting device 6.

The cutting device 3 includes an unwinding portion 9 on which a prepreg tape 8 is mounted with a cutting mechanism 7 interposed therebetween, a precut prepreg 11 and a release paper 12 after the prepreg 10 is precut into a predetermined shape by the cutting mechanism 7. Winding section 14 for winding the pre-cut prepreg tape 13 made of
And have. The cutting mechanism 7 has a cutting blade 15 for cutting the prepreg 10 and is attached to a bracket 16.

The cutting blade 15 is detachably attached to the ultrasonic oscillation holder 17.

The ultrasonic oscillating holder 17 is for generating ultrasonic vibrations and applying minute vibrations to the cutting blade 15.
A current for exciting ultrasonic vibration is supplied from a supply lead wire (not shown).

The mark applying device 4 is located on the downstream side of the cutting mechanism 7 and is mounted on a bracket 16 to which the cutting mechanism 7 is mounted. The mark applying device 4 has a solenoid mechanism 18 and a punch 19 attached to the solenoid mechanism 18, and pre-cuts the release paper 12 from which the unnecessary prepreg 10 is removed as shown in FIG. The solenoid mechanism 18 is operated at a predetermined position in the longitudinal direction and the width direction with respect to the tip of the prepreg 11 to punch the punch 19.
Thus, the hole portion 20 as a mark is formed. Then, the precut prepreg tape 13 having the holes 20 is wound up by the winding section 14 and sent to the laminating roll device 5 as the precut prepreg roll 21.

In the laminating roll device 5, the unwinding portion 22 to which the precut prepreg roll 21 is mounted, the idle roller 23, and the precut prepreg 11 are laminated surface material 2
4, a laminating roll 25 for laminating on 4, a feeding device 26 for the precut prepreg 11, and a winding section 2 for the release paper 12
7, the detection device 6 includes a light projecting unit 29 of the optical sensor 28, a light receiving unit 30, and a numerical control device 31. Then, the light projecting unit 29 and the light receiving unit 30 are provided at a position where a certain distance is provided from the laminating roll 25 to the idle roller 23 side, and the holes 20 formed in the release paper 12 are provided on both sides of the release paper 12. It is arranged so as to be sandwiched from the side. Further, the numerical control device 31 is electrically connected to the feeding device 26 and the light receiving unit 30, and is configured so that the laser beam from the light projecting unit 29 is received by the light receiving unit 30 to operate.

Next, the operation of this manufacturing apparatus will be described.

First, the prepreg tape 8 is attached to the unwinding section 9 of the manufacturing apparatus 1, and the end of the prepreg tape 8 is wound around the winding section 14. Then, the winding section 14 is driven by a driving device (not shown) to cause the prepreg tape 8 to run by a programmed predetermined length, and the cutting mechanism 7
The ultrasonic oscillating holder 17 is energized to generate ultrasonic vibrations on the cutting blade 15, and the prepreg 1 of the prepreg tape 8
0 is cut by a program into a tip shape as shown in FIG. Then, the unnecessary portion on the tip end side of the prepreg 10 is removed by an unnecessary prepreg removing device (not shown). Then, the solenoid mechanism 18 of the mark giving device 4
Then, a hole 20 is formed at a position corresponding to the tip of the precut prepreg 11 on the release paper 12 from which unnecessary portions of the prepreg 10 have been removed by a needle-shaped piece (not shown). Next, the prepreg tape 8 is wound by the winding portion 14 for a required length, the rear end shape and the leading end shape of the next prepreg 10 are precut, and the next hole 20 is formed. In this way, the precut prepreg tape 13 having the holes 20 formed in the release paper 12 is wound around the winding portion 14 to form the precut prepreg roll 21.

Next, the precut prepreg roll 21 is mounted on the unwinding portion 22 of the laminating apparatus 2, the precut prepreg tape 13 is wound around the idle roller 23 and the laminating roll 25, and the release paper 12 is wound by the feeding device 26. It is wound around the take-up part 27. Then, in the state where the laminating roll 25 is located above the position where the laminating surface material 24 is to be laminated and apart from the laminating surface material 24, the optical sensor 2
8. The numerical control device 31 and the feeding device 26 are operated so that the feeding device 26 pulls the release paper 12 to run the precut prepreg tape 13. And the optical sensor 2
When the laser beam from the light projecting unit 29 of 8 passes through the hole 20 formed in the release paper 12 and enters the light receiving unit 30, an interrupt signal is transmitted to the numerical controller 31 and the precut prepreg tape 13 The feeding device 26 is driven so that the hole portion 20, that is, the tip portion of the precut prepreg 11 is located at a position directly below the laminating roll 25, that is, a laminating start position. Thus, when the tip of the precut prepreg 11 reaches a predetermined position, the precut prepreg tape 13 stops at that position. At this time, the laminating roll 25
Is located immediately above the stacking start position of the stacking surface material 24. Next, the laminating roll 25 is lowered, the laminating apparatus 2 is moved to the left in FIG. 2, and the precut prepreg tape 13 is run to adhere the precut prepreg 11 onto the laminating surface material 24. At this time, since the tip portion of the precut prepreg 11 is positioned by the hole 20 so as to coincide with the stacking start position as described above, the precut prepreg 11 is accurately stacked at a desired position.

FIG. 4 shows an embodiment in which the mark is directly applied to the release paper 12 by a stamp instead of punching. Two points in FIG. 1 are provided at predetermined positions in the width direction from the tip of the precut prepreg 11. A rectangular mark 34 is applied to the back surface of the precut release paper 12 by a mark applying device 33 shown by a chain line. The stamp portion 35 for giving these marks 34 is attached to the solenoid mechanism 18 ′, and when the prepreg 10 is precut, the solenoid mechanism 18 ′ is activated to be provided at a position corresponding to the tip portion of the precut prepreg 11. It has become so. A reflection type optical sensor 36 shown by a two-dot chain line in FIG. 2 is used as the detection device 6 for the mark 34 applied to the back surface of the release paper 12 as described above.

The mark 34 shown in FIG. 4 is a release paper 12 in which unnecessary portions are removed by precutting the prepreg 10.
However, the seal may be attached instead of the mark 34, and is not limited to these. Then, the mark 34 is applied in a step different from the step of stacking, but the mark applying device 33 is provided together with the cutting device 3 for precut at the downstream position of the unwinding portion 22 in FIG. May be. Further, the mark 34 may be, for example, the mark 34 including the plurality of holes 20 and the like, and information regarding each precut prepreg 11 may be provided so that the stacking condition may be appropriately changed.

5 and 6 correspond to the release paper 12 on which the marks cannot be directly applied to the release paper 12 because the coating layers 37 are formed on both sides of the release paper 12. In the embodiment showing the case where the coating layer 37 of the paper pattern 12 is removed to form the coating layer removing portion 38 and the mark 34 is applied to the coating layer removing portion 38, the coating layer is removed by the mark applying device 33 shown in FIG. A device 39 is provided.

The coating layer removing device 39 has a rotary brush 40, a motor 41 for the rotary brush 40, and an air cylinder 42 for vertically moving the rotary brush 40.

The rotating brush 40 is a disk-shaped member having a large number of wires flocked in the radial direction, is provided at a right angle to the running direction of the prepreg tape 8, and has a shaft 4 at the center thereof.
3 is fixed, and this shaft 43 is connected to the motor 41. The lower half of the rotating brush 40 has a suction duct 44.
The rotating brush 40 scrapes off the coating layer 37 of the release paper 12 and is inserted into the coating layer removing section 3
The removal powder generated when forming 8 is sucked by a blower (not shown).

The motor 41 is fixed to a vertical portion 46 of an L-shaped mounting plate 45, and the horizontal portion 47 of the mounting plate 45 has an air cylinder 42 mounted on a base plate 48.
The rod is stuck.

The mark applying device 33 is a prepreg tape 8
Located outside the coating layer removal device 39 for
It is mounted on the base plate 48 of the coating layer removing device 39. The mark imparting device 33 includes a mark imparting unit 49, an air cylinder 50 for moving the mark imparting unit 49 up and down, and a warm air nozzle 5 that is a part of a dryer.
1 and. The mark imparting section 49 includes a flat plate 52,
The flat plate 52 has a box body 54 provided with a mouth portion 53 formed on the upper surface thereof, and a felt impregnated with a paint is enclosed in the box body 54. Felts protrude to form the stamp portion 55. The rod of the air cylinder 50 mounted on the base plate 48 is fixed to the lower portion of the flat plate 52.

The warm air nozzle 51 is attached to the flat plate 52 of the mark applying portion 49, and the tip end portion is formed so as to face the mark 34 applied to the release paper 12 by the stamp portion 55, and is applied to the release paper 12. The mark 34 is dried with warm air. Further, a mounting member 56 is fixed to the end portion of the base plate 48 on the mark providing device 33 side, and a screw rod 57 is horizontally screwed to the mounting member 56. The end of the screw rod 57 has a motor 58.
Is combined with. Then, with this motor 58, the screw rod 5
By rotating 7 the base plate 48 moves toward the prepreg tape 8, and the coating layer removing device 39 or the mark applying device 33 provided on the base plate 48 moves directly below the release paper 12. ing. Incidentally, 59 is a holding plate, which is the rotary brush 4 of the coating layer removing device 39.
0 prevents the prepreg tape 8 from rising when the coating layer 37 of the release paper 12 is scraped off and when the stamp portion 55 of the mark applying device 33 applies the mark 34 to the coating layer removal portion 38 formed on the release paper 12. It has become.

Next, the operation of the coating layer removing device 39 and the mark applying device 33 will be described with reference to FIGS.

The precut prepreg tape 13 is run, and a predetermined distance (S) from the tip of the precut prepreg 11 (the left end in FIG. 5 is the tip when laminated).
When the mark applying position of (1) comes to a position corresponding to the rotating brush 40 of the coating layer removing device 39, the precut prepreg tape 13 stops. Then, the pressing plate 59 is lowered by the operation of the actuator (not shown) and comes into contact with the upper surface of the precut prepreg 11. After that, the motor 58 for moving the base plate 48 rotates and the screw rod 57 rotates, and the coating layer removing device 39 and the mark applying device 33 mounted on the base plate 48 cause the precut prepreg tape 1 to move.
3 and the rotary brush 40 of the coating layer removing device 39 comes directly under the mark applying device 33, the base plate 48
Movement stops. Then, the motor 41 rotates, the rotating brush 40 rotates, the air cylinder 42 operates, and the coating layer removing device 39 moves up toward the precut prepreg tape 13 to scrape off the coating layer 37 of the release paper 12 by the rotating brush 40. Be done. The coating layer 37 is scraped off to remove the coating layer removal portion 38.
When the film is formed, the air cylinder 42 operates and the coating layer removing device 39 descends. Here, the motor 58 rotates, the screw rod 57 rotates, and the base plate 48 further moves toward the precut prepreg tape 11 and the mark applying device 33.
When the stamp part 55 comes directly below the coating layer removing part 38, the motor 58 stops and the air cylinder 50 of the mark applying device 33 operates, and the mark applying device 33 rises toward the coating layer removing part 38. Then, the stamp portion 55 is pressed against the coating layer removal portion 38 to give the mark 34. Then, the air cylinder 5
0 is activated to start the descent of the mark giving device 33, the warm air is blown from the warm air nozzle 51 to dry the mark 34, and then the motor 58 is rotated and the screw rod 57 is rotated to move the base plate 48. Along with this, the coating layer removing device 39 and the mark applying device 33 move in a direction away from the precut prepreg tape 13. By repeating the above operation, the mark 34 can be provided at the mark providing position at a predetermined distance (S) from the tip of each precut prepreg 11. Then, in this way, the release paper 1
As shown in FIG. 7, the precut prepreg tape 13 is run until the detection device 6 detects the mark 34 by providing the mark 34 on the back side of the sheet 2. If the mark 34 is detected, the running is stopped and the laminating roll 25 By pressing with, the stacking start positions can always be matched and stacked.

FIGS. 8 and 9 show another embodiment in which a disc 61 having a knife-shaped peripheral portion is used in place of the rotating brush 40 of the coating layer removing device 39.
1 is the same as that of the embodiment shown in FIG. That is,
By rotating the disc 61 by the motor 41, the coating layer 37 of the release paper 12 is removed by the peripheral edge of the disc 61 to form the coating layer removing portion 38 and the release paper 12 is wedge-shaped as shown in FIG. Forming a groove 62 of
When the stamp portion 55 is pressed against the coating layer removal portion 38 and the groove 62 of the release paper 12, the paint penetrates into the coating layer removal portion 38 and the groove 62 to form the mark 34.

Although the operating mechanism of each part uses a motor and an air cylinder, a hydraulic cylinder may be used, and the operating mechanism is not limited to these.

[0031]

As described above, the method for producing a prepreg laminated material according to the present invention provides a mark on the release paper at a position a predetermined distance from the tip of the precut prepreg precut in a predetermined shape to form a precut prepreg. Since the mark is detected by the detection device at the time of stacking and the tip portion of the pre-cut prepreg is positioned, extremely accurate positioning can be performed by a simple method, and a prepreg laminated material without deviation can be manufactured.

Further, according to the manufacturing apparatus of the present invention, a mark applying device for applying a mark to the release paper, and a detecting device for detecting the mark and positioning the front end of the precut prepreg at the stacking start position. Since it is a simple device only provided with, it is possible to reliably perform highly accurate positioning with an inexpensive device, and there are excellent effects such as improving the quality of the prepreg laminated material.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a manufacturing apparatus provided in a prepreg laminated material manufacturing apparatus according to the present invention.

FIG. 2 is a side view of an example of a laminating apparatus provided in the prepreg laminated material manufacturing apparatus according to the present invention.

FIG. 3 is a plan view showing a state where marks are applied by a mark applying device according to an embodiment.

FIG. 4 is a plan view showing a state where marks are applied by a mark applying device according to another embodiment.

FIG. 5 is a perspective view showing an embodiment of a mark applying device provided with a coating layer removing device.

6A and 6B are explanatory views showing a state of mark application by the mark application device of FIG.

FIG. 7 is an explanatory diagram showing a stacking order of pre-cut prepreg tape with marks.

FIG. 8 is a perspective view showing another embodiment of a mark applying device provided with a coating layer removing device.

9 is an explanatory diagram showing a state of mark application by the mark application device of FIG. 8. FIG.

[Explanation of symbols]

 1 Manufacturing Device 2 Laminating Device 3 Cutting Device 4 Marking Device 5 Laminating Roll Device 6 Detecting Device 8 Prepreg Tape 9 Unwinding Part 11 Precut Prepreg 12 Release Paper 14 Winding Part 17 Ultrasonic Oscillating Holder 22 Unwinding Part 23 Idle Roller 25 Laminating roll 26 Feeding device 27 Winding unit 28 Optical sensor 33 Marking device 37 Coating layer 38 Coating layer removing unit 39 Coating layer removing device 51 Warm air nozzle 55 Stamping unit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication location H05K 1/03 K 7011-4E // B29K 105: 06 (72) Inventor Shoichi Hata Numazu, Shizuoka Prefecture 2068-3 Ooka City, Toshiba Machine Co., Ltd. Numazu Plant (72) Inventor Yuhei Yamakawa 2068 Ooka, Numazu City, Shizuoka Prefecture Toshiba Machine Co., Ltd. Numazu Plant

Claims (6)

[Claims] 1. A prepreg of a prepreg tape composed of a prepreg and a release paper is precut into a predetermined shape by a cutting device, and the release paper is peeled off from the prepreg prepreg tape from which unnecessary parts are removed and the release paper. In a method of manufacturing a prepreg laminated material, in which a precut prepreg separated from a lever release paper is laminated by pressing a laminating roll while relatively moving the laminated part with respect to a laminated portion, a tip of each precut prepreg precut into a predetermined shape A mark for detecting the position of the tip of the precut prepreg is provided on the release paper at a position a predetermined distance from the section, and this mark is detected by the detection device when the precut prepreg is laminated to position the tip of the precut prepreg. Align the tip of the pre-cut prepreg with the stacking start position Method for producing a prepreg laminate, which comprises laminating by. 2. The mark comprises one or more elements,
The method for producing a prepreg laminate according to claim 1, wherein the prepreg laminated material has information of the precut prepreg at the same time as the position of the tip of the prepreg prepreg. 3. A cutting device for precutting a prepreg of a prepreg tape comprising a prepreg and a release paper into a predetermined shape without cutting the release paper, and a precut prepreg and a release paper from which unnecessary parts are removed by the cutting device. In a prepreg laminated material manufacturing apparatus having a laminating roll device for pressing and laminating a precut prepreg of a precut prepreg tape consisting of a release paper at a position at a predetermined distance from the tip of the precut prepreg. An apparatus for manufacturing a prepreg laminated material, comprising: a mark applying device for applying a mark on the upper side; and a detecting device for detecting the mark and positioning the front end portion of the precut prepreg at a laminating start position. 4. A prepreg of a prepreg tape composed of a prepreg and a release paper is cut at a predetermined position between the unwinding portion and the winding-up portion to cut the release-paper. In a pre-cut prepreg tape manufacturing apparatus equipped with a cutting device that pre-cuts into a predetermined shape without adding a mark to the release paper at a predetermined position from the tip position of the pre-cut prepreg pre-cut into a predetermined tip shape An apparatus for producing a precut prepreg tape used in the method for producing a prepreg laminated material according to claim 1 or 2, further comprising a mark giving device. 5. A coating layer removing device for release paper is provided together with the mark applying device, and the mark applying device is arranged so as to face the coating layer removing portion of the release paper by the coating layer removing device. Item 4. A precut prepreg tape manufacturing apparatus according to item 4. 6. The apparatus for producing a precut prepreg tape according to claim 5, wherein a dryer is provided near the mark applying device.