JPH06270144A - Method and apparatus for producing prepreg laminated material - Google Patents

Abstract

PURPOSE:To more efficiently laminate precut prepregs with desired accuracy corresponding to the lamination condition of a prepreg laminated material. CONSTITUTION:A feed device 2 for holding the prepreg tape 10 delivered from a prepreg tape roll 9 to allow the same to run is provided on the downstream side of the prepreg tape roll 9 and a servo motor is provided to the feed device 2 and rotated in a predetermined feed direction by the signal from a data forming device 6. A cutter 3 precutting a prepreg 11 into a prescribed shape without cutting release paper 12 is provided on the downstream side of the feed device 2. A cueing lamination process and a group cueing lamination process are controlled on the basis of the data formed by the data forming device 6 to perform cutting, the application of a mark and lamination to more efficiently perform lamination with desired accuracy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing a prepreg laminate by laminating precut prepregs which are precut into a predetermined shape and spread on a release paper.

[0002]

2. Description of the Related Art Conventionally, the lamination of prepreg has been disclosed in Japanese Patent Laid-Open No.
As shown in JP-A-122611 and JP-A-4-122645, a pre-cut prepreg tape is prepared in advance by pre-cutting in accordance with a pattern in which only a prepreg of a prepreg tape composed of a long continuous prepreg and a release paper is laminated. Is mounted on a laminating apparatus and pre-cut pre-cut prepregs are fed by a predetermined length based on the created data so that the laminating start points of the pre-cut prepregs are overlapped with the laminating start points.

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

[0004]

However, since the feed 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, uneven lamination occurs, which causes deterioration of the quality of the laminated prepreg laminate material. Further, since the tip shape of the pre-cut prepreg is cut into various angles and shapes depending on the lamination pattern, it is difficult to accurately grasp the position of the tip portion.

In view of this, the present invention has an object to provide a prepreg laminate material manufacturing method and apparatus capable of efficiently laminating a pre-cut prepreg with desired accuracy in accordance with the lamination conditions of the prepreg laminate material. It was made as.

[0006]

To achieve the above object, in the present invention, a prepreg of a prepreg tape comprising a prepreg and a release paper is formed into a predetermined shape by a cutting device provided in a precut prepreg tape manufacturing apparatus. A precut prepreg is formed by precutting to form a precut prepreg, and the release paper is separated from the precut prepreg tape that consists of the precut prepreg from which unnecessary parts have been removed and the release paper, and the precut prepreg separated from this release paper is laminated to the layered portion. In the method of manufacturing a prepreg laminated material in which the laminating roll device provided in is relatively moved and pressed to laminate, on the release paper at a position at a predetermined distance from the tip of each precut prepreg precut in a predetermined shape. Pre-cut A mark is added to detect the position of the prepreg tip, When the pre-cut prepreg is laminated, the mark is detected by the detection device to position the tip of the pre-cut prepreg, and the tip of the pre-cut prepreg is aligned with the laminating start position for laminating, and each pre-stacking step and predetermined shape Form a group with multiple pre-cut prepregs that have been pre-cut, and add a mark to detect the position of the tip of the group on the release paper at a position that is a predetermined distance from the end of the first pre-cut prepreg of each group. , This mark is detected by the detection device when laminating the pre-cut prepregs to position the tip of the first pre-cut prepreg in the group, and the tip of the first pre-cut prepreg is aligned with the laminating start device, and then laminated. The amount of pre-cut prepreg inside the feeding device A method of manufacturing a prepreg laminated material, which is characterized by laminating precut prepregs by selecting a group cueing laminating step of sequentially laminating, and a prepreg of a prepreg tape composed of a prepreg and a releasing paper. A manufacturing apparatus equipped with a cutting device for precutting into a predetermined shape without cutting, and a precut prepreg of a precut prepreg tape made up of a precut prepreg and a release paper from which unnecessary parts are removed by the manufacturing apparatus, with respect to a layered portion. In a prepreg laminated material manufacturing apparatus having a laminating apparatus provided with a laminating roll device for pressing and laminating, a predetermined distance from the tip of the first precut prepreg of each precut prepreg or each group consisting of a plurality of precut prepregs. Mark on the release paper at the position A mark giving device provided in the making device for giving, and data for controlling the making device and the laminating device based on the mark giving method selected from the two mark giving methods and the laminated material shape data. A data producing device for producing the above, a detecting device provided in the laminating device for detecting the applied mark, and a control device for operating the laminating device based on the output from the detecting device and the data. An apparatus for producing a prepreg laminated material characterized by having the above.

[0007]

In the above-mentioned prepreg laminated material manufacturing apparatus,
A mark for detecting the tip of the pre-cut prepreg is provided on the release paper at a predetermined distance from the tip of the pre-cut prepreg, and the mark is detected to position the tip of the pre-cut prepreg to stack them. And, a mark for detecting the front end of the group is provided on the release paper at a position at a predetermined distance from the front end of the first precut prepreg of the group formed by a plurality of precut prepregs precut in a predetermined shape. After detecting the mark and positioning the tip of the group to stack, select the group cueing stacking process that stacks the precut prepregs in the group sequentially by controlling the feed amount of the feeder of the stacking device according to the stacking conditions. Then, the precut prepreg can be laminated efficiently with desired accuracy.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is a front view of a precut prepreg tape manufacturing apparatus 1. The manufacturing apparatus 1 includes a feeding device 2, a cutting device 3, a mark applying device 4, a removing device 5, and a data creating device 6.

In the figure, a prepreg tape roll 9 is attached to a delivery shaft 8 on the left end side of a main body frame 7, and a prepreg tape 1 unwound from the prepreg tape roll 9 is provided downstream of the prepreg tape roll 9.
A feeding device 2 for holding and running 0 is provided. Further, the feeding device 2 is provided with a servo motor (not shown) so that the feeding device 2 rotates in a predetermined feeding amount (rotation amount) mark direction in response to a signal from the data producing device 6. Further, a prepreg 11 is provided on the downstream side of the feeding device 2,
A cutting device 3 is provided for pre-cutting the release paper 12 into a predetermined shape without cutting it.

The cutting device 3 has a cutting blade 13 for cutting the prepreg 11, and the cutting blade 13 is detachably attached to an ultrasonic oscillation holder 14 for applying ultrasonic vibration to the cutting blade 13. . A table 15 is provided below the cutting blade 13. The upper part of the ultrasonic oscillating holder 14 is fixed to a moving mechanism 16 which is movable in the longitudinal direction and the width direction of the prepreg tape 10, and the cutting blade 13 is programmed in the data creating device 6 by this moving mechanism 16. The prepreg 11 is precut into a predetermined shape while moving along a predetermined path.

Further, a mark providing device 4 is provided below the table 15 of the cutting device 3, and a stamp portion 18 for applying a rectangular mark 17 is provided.
When the prepreg 11 is attached to the solenoid mechanism 19 and the prepreg 11 is precut, the solenoid mechanism 19 operates to release the release paper 12 at a predetermined position with respect to the tip of the prepreg prepreg 20.
The mark 17 is provided on the back surface of the.

Further, a removing device 5 for removing the unnecessary prepreg precut by the cutting device 3 into a predetermined shape is provided on the downstream side of the mark applying device 4.
A winding shaft 21 is provided on the downstream side of the removing device 5,
A winding reel 22 for the release paper 12 is mounted on the winding shaft 21.

The data producing device 6 shown in FIG. 2 is provided above the feeding device 2 as shown in FIG. 1, and has a plurality of plies 24 (for forming the prepreg laminated material 23 as shown in FIG. 3). A ply division system 25 for creating division data of what shape (for example, a strip shape as shown in FIG. 4) for dividing each ply 24 of the pre-cut prepreg 20 arranged in a flat plate shape. The ply data 26 indicating the divided shape and position of each ply 24 created by the ply dividing system 25, and the precut prepreg 20 based on the divided shape of each ply 24 from the prepreg tape 10 are precut in each individual laying-up step, Course division system 2 that creates division data depending on whether to pre-cut in the cue stacking process
7. Course data 28 showing the divided shape and position of each precut prepreg 20 created by this course division system 27, the arrangement order of the precut prepregs 20,
The first software 29 for the manufacturing apparatus 1 to which the software such as the mark application and the unnecessary portion removal is input, and the stacking apparatus 30 to which the software such as the stacking order, direction, and pressing force of the precut prepreg 20 is input. The second software 31 is built in. Then, the laminated material shape data 32 that indicates the shape of the prepreg laminated material 23, the conditions of the cutting and laminating method (for example,
The thickness of the prepreg 11 is 0.3 mm, and the stacking pressure is 50 k.
g / cm ² , in the group cueing and laminating process, by inputting manual parameter data 33 for instructing how many pre-cut prepregs 20 should have one mark 17) The application data 34 and the lamination data 35 for instructing the lamination are output, and the output of the cutting / marking data 34 is sent to the feeding device 2, the cutting device 3, the mark imparting device 4, and the removing device 5 of the manufacturing apparatus 1 to generate the lamination data. The output of 35 is sent via the control device 36 of the laminating apparatus 30 to each operation unit such as the feeding device 37 necessary for laminating work.

FIG. 5 is a front view of the laminating apparatus 30 for the precut prepreg 20. The laminating apparatus 30 holds the precut prepreg tape 51 on which the precut prepreg 20 precut in a predetermined shape is spread, and sequentially draws out the precut prepreg tape 51 to orient the precut prepreg 20 at a predetermined angle and shift the position. The pre-cut prepreg 20 pre-cut into a predetermined shape is intermittently spread on the supply reel 39 around which the pre-cut prepreg tape 51 is wound, and the pre-cut prepreg 20 remains after the pre-cut prepreg 20 is peeled off. The take-up reel 40 that winds the release paper 12, the idle roller 41 that is provided in the vicinity of the downstream side of the supply reel 39 and that applies tension to the pre-cut prepreg tape 51 to prevent the deviation, and is provided below the supply reel 39. Pre-cut from the back side of the release paper 12 with a predetermined pressing force. Preg 2
And a pre-cut prepreg tape 5 provided between the laminating roll device 43 and the take-up reel 40.
It is provided with a feeding device 37 that holds the first release paper 12 and feeds the precut prepreg tape 51.

Further, the laminating apparatus 30 has a detecting device 44 for detecting the laminating position of the precut prepreg 20 having the laser type optical sensor 38 and a control device 36. The stacking device 30 is movable in the direction indicated by arrow V in FIG.

The control device 36 controls the motor 4 of the feeding device 37.
When the signal from the laser type optical sensor 38 is input, the feeding device 37 is driven by the feeding amount preset by the data creating device 6 to move the precut prepreg 20 to the lower part of the laminating roll device 43. It is designed to be sent to a predetermined position.

Next, the operation of forming the prepreg laminated material 23 in each individual staking and laminating step by this apparatus for manufacturing the prepreg laminated material 23 will be described.

First, the prepreg tape roll 9 is mounted on the unwinding shaft 8 of the manufacturing apparatus 1, and the tip of the prepreg tape 10 is fed from the prepreg tape roll 9 to the feeding device 2, the cutting device 3, the mark imparting device 4, and the removing device 5. The take-up reel 22 mounted on the take-up shaft 21 is wound via the.

Next, when the data creating device 6 is operated, the ply data 26 is created by the ply dividing system 25 based on the input laminated material shape data 32 and the manual parameter data 33. Then, course data 28 is created by the course division system 27, input to the first software 29 and the second software 31, and cutting / marking data 34 and stacking data 35 are output. And disconnect
The feeding device 2 is actuated by the signal of the mark giving data 34 and the prepreg tape 10 runs, and P shown in FIG.
When the point comes directly under the cutting blade 13 of the cutting device 3, the feeding device 2
Is stopped, the cutting blade 13 is moved by the moving mechanism 16 while ultrasonic vibration is generated by the ultrasonic oscillating holder 14, and the prepreg tape 10 is precut at right angles to the length direction of the prepreg tape 10 to form a precut line 46. It Then, the prepreg tape 10 runs for the running length L, precuts are performed at right angles to the length direction of the prepreg tape 10, the precut line 47 is formed, and the precut prepreg 20A is formed.

Next, the prepreg tape 10 travels the running length S + α, and the prepreg tape 10 is precut at a right angle to the longitudinal direction to form a precut line 48 on the upstream side of the precut prepreg 20B.

Thereafter, when the prepreg tape 10 runs and the mark applying position 49 reaches a position above the stamp portion 18 of the mark applying device 4, the prepreg tape 10 stops, and the prepreg line 47 on the downstream side of the precut prepreg 20A starts. Running length S, pre-cut prepreg 20
The stamp portion 18 is operated by the solenoid mechanism 19 with respect to the release paper 12 at the position of the running length α from the precut line 48 on the upstream side of B, and the mark 17 is formed on the back surface side of the release paper 12.
Is given.

Next, the prepreg tape 10 runs,
Pre-cut prepreg 20A and pre-cut prepreg 2
0B, the removing device 5 is actuated to remove the unnecessary prepreg 50, the above operation is repeated, and the precut prepregs 20A, 20B, 20C ... Are sequentially wound around the take-up reel 22 and the precut prepreg tape. 51 is formed. Then, the supply reel 39 wound with the precut prepreg tape 51 is mounted on the laminating apparatus 30, the precut prepreg tape 51 is passed over the idle roller 41 and the laminating roll apparatus 43, and the release paper 12 is fed through the feeding apparatus 37. The take-up reel 40 is wound. Then, when the control device 36 of the laminating device 30 is turned on, the feeding device 37 rotates, the precut prepreg tape 51 runs in the direction shown by the arrow U in FIG. 5, and when the laser type optical sensor 38 detects the mark 17, the control device. The tip end portion P of the pre-cut prepreg 20 </ b> A stops immediately below the laminating roll device 43 after traveling by a feed amount set in advance at 36. Next, the laminating roll device 43 descends, and the laminating device 30 moves in the direction of arrow V shown in FIG.
0A, 20B, 20C ... are laminated and ply 24
Is formed. Then, the pre-cut prepreg 20 is laminated on the ply 24 in the same manner as described above to form the prepreg laminated material 23 including the plurality of plies 24 (see FIGS. 3 and 4).

Next, the operation in the case of forming the prepreg laminated material 23 in the group cueing and laminating step will be described only on the part different from the individual cueing and laminating step. The data creation device 6 outputs the cutting / marking data 34 and the stacking data 35, the feeding device 2 operates, the prepreg tape 10 runs, and the point Q shown in FIG.
When it comes directly under the cutting blade 13 of, the feeding device 2 is stopped and the prepreg tape 10 is precut and the precut line 5
2 is formed. After that, the prepreg tape 10 is run for the running length L and precut is performed to form the precut line 53.
D is formed.

Next, the prepreg tape 10 runs the running length S + α to form the precut line 54 on the upstream side of the precut prepreg 20E. Then, the prepreg tape 10 runs and the pre-cut prepreg 20D
Running length S from the precut line 53 on the downstream side of the precut line 5 on the upstream side of the precut prepreg 20E
The mark 17 is added to the position of the running length α from 4.

Then, the prepreg tape 10 runs and the precut prepreg 20D and the precut prepreg 2
The unnecessary prepreg 55 between 0E is removed by the removing device 5.

Next, the prepreg tape 10 runs the running length L and the precut line 56 is formed by the signal of the cutting / marking data 34, and then the prepreg tape 10 runs the running length β and the precut line 57.
And the unnecessary prepreg 58 is removed by the removing device 5, and thereafter the precut prepregs 20F ... Are similarly formed.

Then, the precut prepreg tape 51 thus formed is mounted on the laminating device 30, the mark 17 is detected by the detecting device 44 to laminate the precut prepreg 20D, and the downstream of the precut prepreg 20D is continued. The side pre-cut prepregs 20E, 20F ... Are laminated by rotating the feeding device 37 by an amount corresponding to the running lengths L and β, respectively.

It should be noted that, in the individual cueing laminating step and the group cueing laminating step, either one of the steps is often applied when forming one prepreg laminated material 23, but one prepreg laminated material 23 is used. It is not limited to these and may be formed by using two steps together.

As described above, each individual cueing and laminating step,
By controlling the grooving cueing and laminating process with the data created by the data creating device 6 to perform cutting, marking, and laminating, the individual cueing and laminating process is performed for the prepreg laminated material in which the outer shape is particularly important. For the prepreg laminated material that applies the external shape and attaches importance to productivity to some extent, the number of precut prepregs included in each group is appropriately set, and the group cueing and laminating process is applied to perform lamination. Accurate stacking can be performed more efficiently.

[0030]

As described above, according to the method of manufacturing a prepreg laminate according to the present invention, the position of the front end of the precut prepreg is located on the release paper at a predetermined distance from the front end of each precut prepreg precut in a predetermined shape. A mark to detect the position of each mark, and this mark is detected and positioned at the time of stacking, and each tip-out stacking process that stacks by aligning the tip part with the stacking start position and multiple pre-cut prepregs make one group. A mark for detecting the position of the front end of the group is formed on the release paper at a position a predetermined distance from the front end of the first pre-cut prepreg of each group, and this mark is detected during stacking for positioning. , The first pre-cut prepreg is aligned with the tip of the first pre-cut prepreg at the stacking start position, and then stacked By selecting the group cueing laminating process for laminating by controlling the feed amount of the feeding device of the laminating device and laminating, the finishing is prioritized according to the laminating conditions of the prepreg laminating material. The prepreg laminated material can be manufactured by appropriately selecting.

Further, according to the apparatus of the present invention, a mark imparting device for imparting a mark on the release paper at a position of a predetermined distance from the tip of each precut prepreg or the first precut prepreg of each group, the mark imparting system, and A data creating device that creates data for controlling the manufacturing device and the stacking device based on the laminated material shape data, a detection device for detecting a mark, and a stacking process based on the output from the detection device and the data. With a simple device that only has a control device for operating the device to carry out the laminating work, it is possible to surely select high-accuracy positioning or normal positioning to perform lamination, and to obtain a high-quality prepreg laminated material. There is an excellent effect that it is possible to obtain a prepreg laminated material in which excessive productivity is suppressed and productivity is improved.

[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 flow explanatory diagram of a data creation device provided in the creation device.

FIG. 3 is a perspective view of a prepreg laminated material formed of plies.

FIG. 4 is a plan view of a ply formed of a precut prepreg.

FIG. 5 is a side view of an embodiment of a laminating apparatus provided in the prepreg laminated material manufacturing apparatus according to the present invention.

FIG. 6 is a plan view when pre-cutting and marking are applied to the prepreg tape in the individual cueing and laminating step and the group cueing and laminating step.

[Explanation of symbols]

 1 Manufacturing Device 2 Feeding Device 3 Cutting Device 4 Marking Device 5 Removal Device 6 Data Creating Device 10 Prepreg Tape 12 Release Paper 13 Cutting Blade 17 Mark 20 Precut Prepreg 23 Prepreg Laminating Material 30 Laminating Device 36 Control Device 38 Laser Optical Sensor ( Detection device) 43 Laminating roll device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location // B29C 43/20 7365-4F B29K 105: 08 B29L 9:00 4F

Claims (2)

[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 provided in a precut prepreg tape manufacturing apparatus to form a precut prepreg, and a precut in which unnecessary portions are removed. The release paper is separated from the pre-cut prepreg tape consisting of the prepreg and the release paper, and the pre-cut prepreg separated from the release paper is pressed while moving the laminating roll device provided in the laminating device relative to the part to be laminated. In the method of manufacturing a prepreg laminated material to be laminated by applying a mark for detecting the tip position of the precut prepreg on the release paper at a position a predetermined distance from the tip of each precut prepreg precut in a predetermined shape, This mark is detected by a detector when precut prepregs are laminated. Position the tip of the pre-cut prepreg, and stack the individual pre-cut prepregs by aligning the tip of the pre-cut prepreg with the stacking start position and stacking, and a group of multiple pre-cut prepregs that have been pre-cut into a predetermined shape. A mark for detecting the position of the front end of the group on the release paper at a predetermined distance from the front end of the first precut prepreg of each group, and this mark is detected by the detection device when the precut prepreg is stacked. After detecting and positioning the tip of the first pre-cut prepreg of the group, the tip of the first pre-cut prepreg is aligned with the stacking start device, and then the pre-cut prepreg in the group is fed by the feeding device of the laminating device. Select the group cueing and laminating process, in which the layers are sequentially laminated by controlling the quantity. Method for producing a prepreg laminate material characterized by laminating a re-cut prepreg. 2. A manufacturing apparatus equipped with a cutting device for precutting a prepreg of a prepreg tape composed of a prepreg and a release paper into a predetermined shape without cutting the release paper.
A prepreg having a laminating roll device for pressing the precut prepreg of a precut prepreg tape composed of a release paper and a precut prepreg from which unnecessary parts are removed by the manufacturing apparatus to laminate the prepreg on the layered portion. In the laminated material manufacturing apparatus, a mark provided on the manufacturing apparatus for giving a mark on the release paper at a position at a predetermined distance from the tip of the first precut prepreg of each precut prepreg or each group consisting of a plurality of precut prepregs Applicator and the above 2
A data creating device that creates data for controlling the manufacturing device and the laminating device based on the selected mark applying method of one of the two mark applying methods and the laminated material shape data, and for detecting the applied mark And a control device for operating the laminating device based on the output from the detecting device and the data.