JP2003166164A - Method and apparatus for connecting base for prepreg - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for connecting bases for prepreg, with which reduction of uniformity of product and adverse effect on production facilities are prevented and stain of product and production facilities can be prevented. <P>SOLUTION: This method for connecting bases for prepreg is used for producing prepreg by impregnating and drying a resin. The end part 2 of the base 1 composed of a sheetlike fiber assembly is bonded and connected to the end part 4 of another base 3 composed of a sheetlike fiber assembly. The end part 2 of one base 1 is provided with an adhesive 5. The end face 2a of one base 1 and the end face 4a of another base 3 are positioned in the range of width H of the adhesive 5 and the end part 2 of one base 1 is piled on the end part 4 of another base 3 and bonded with the adhesive. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting method and a connecting device for a prepreg base material, which is a sheet-shaped fiber aggregate used for producing a prepreg.

[0002]

2. Description of the Related Art Conventionally, when manufacturing a prepreg used for a laminated board (CCL) or the like, a glass cloth (glass woven fabric) or a glass nonwoven fabric or a synthetic fiber such as polyester fiber or aramid fiber is used as a base material. Sheet-like fiber aggregates such as the woven and non-woven fabrics used are used.
In addition, the sheet-shaped base material is formed into a long length, and the long sheet-shaped base material is continuously advanced in the longitudinal direction to carry out the varnish impregnation step and the drying step while being conveyed, whereby the prepreg Is also manufactured continuously. Then, when the end of the base material (hereinafter, referred to as the old base material) used for manufacturing the prepreg approaches, the other base material (hereinafter, referred to as the new base material) is connected to this base material, The prepreg is manufactured continuously without interruption.

FIG. 13 shows a base material connecting device for connecting an old base material O and a new base material N. The old base material O is carried while being hung on the carrying rolls 80, 81 and the like so as to proceed in one direction in the longitudinal direction. The old base material O is transported to a prepreg manufacturing process such as a process of impregnating a resin-containing varnish. Further, a cutting slitter 83 and an upper heater 84, which are rotationally driven by a driving machine 82 such as a motor, are provided on the upper side of the old base material O between the transport rolls 80 and 81. A lower heater 86 that is vertically driven by a driving machine 85 such as an air cylinder is provided directly below the upper heater 84. Further, next to the lower heater 86, an adhesive installation table 87 is provided.
Is provided.

Then, the connection between the old base material O and the new base material N using such a connecting device is performed as follows. First, when the end of the old base material O approaches, its transportation is stopped. Next, the vicinity of the end of the new base material N wound in a roll is sandwiched by a sandwiching tool 12 called a pass bar, and the sandwiching tool 1
New base material N rolled into a roll by moving 2
While unwinding, the new base material N is placed near the end portion on the adhesive attachment table 87. At this time, the new base material N is extended so as to be located above the lower heater 86. Next, the adhesive 5 is applied to the upper surface of the new base material N at the inner side of the sandwiching tool 12, for example. Next, the portion of the new base material N coated with the adhesive 5 is placed on the lower heater 86. Next, the lower heater 86 is moved upward so that the portion of the new base material N coated with the adhesive 5 is brought into contact with the lower surface of the old base material O, and the new base material N and the old base material are combined by the upper heater 84 and the lower heater 86. The material O is sandwiched between the upper and lower sides and heated while being in close contact with each other to cure the adhesive agent 5 and bond the new base material N and the old base material O. Next, in the vicinity of the position where the new base material N and the old base material O are bonded, the old base material O is cut along the short side direction by the cutting slitter 83, and the new base material N is cut in the short side direction with scissors or the like. It cuts along and it removes the clamping tool 12. In this way, the rear end of the old base material O and the front end of the new base material N can be connected. Then, after that, the old base material O is again conveyed, so that the new base material N is continuously conveyed to the prepreg manufacturing process after the old base material O.

When the old base material O and the new base material N are connected as described above, it is difficult to cut the vicinity of the bonded portion between the two, so that as shown in FIG. The old base material O and the new base material N were bonded and connected while the end portion (shorter end portion) 4 and the end portion (shorter end portion) 2 of the new base material N remained. That is, the end portion 4 of the old base material O and the end portion 2 of the new base material N were connected to each other without being adhered. In the present specification, the end portion of the base material refers to a portion extending from the end surface (short end surface) of the base material in the longitudinal direction of the base material by 1 to 50 mm.

[0006]

However, if the base material is connected without leaving the end portions of the base material as described above, the end surface (cut end surface) of the base material is exposed. As a result, the fibers are loosened at the edges of the base material, and this loosening may impair the homogeneity of the product (prepreg) or cause looseness in the production equipment of the product, resulting in adverse effects such as suspension of the production equipment. there were. In addition, an overlapping portion of the end portion 4 of the old base material O and the new base material N and an overlapping portion of the end portion 2 of the new base material N and the old base material O occur on both sides of the portion bonded with the adhesive 5. The varnish is also impregnated (attached) to this overlapping part
As a result, the amount of varnish impregnated increases and the product and manufacturing equipment may be soiled.

The present invention has been made in view of the above points, and it is possible to prevent deterioration of the homogeneity of products and adverse effects on manufacturing equipment, and prevent contamination of products and manufacturing equipment. An object of the present invention is to provide a material connecting method and a connecting device.

[0008]

A method for connecting a prepreg base material according to claim 1 of the present invention is a method for connecting a prepreg base material used for producing a prepreg by impregnating and drying a resin. In adhering and connecting the end portion 2 of the base material 1 formed of the sheet-shaped fiber assembly and the end portion 4 of the other base material 3 formed of the sheet-shaped fiber assembly, one base An adhesive 5 is provided on the end portion 2 of the material 1, and the end surface 2a of the one base material 1 and the end surface 4a of the other base material 3 are positioned within the range of the width H of the adhesive 5. The end portion 2 of the base material 1 and the end portion 4 of the other base material 3 are overlapped and bonded with an adhesive 5.

According to a second aspect of the present invention, there is provided a method for connecting a prepreg base material, which is a method for connecting a prepreg base material used for producing a prepreg by impregnating and drying a resin. When the end portion 2 of the base material 1 formed of the body and the end portion 4 of the other base material 3 formed of the sheet-like fiber assembly are bonded and connected, the adhesive 5 is applied to one of the base materials 1. And the end portion 2 of the one base material 1 provided with the adhesive 5 is formed by cutting the one base material 1 at the portion where the adhesive 5 is provided. The end surface 2 a of one base material 1 and the end surface 4 a of the other base material 3 are positioned within the width H of the provided adhesive 5 so that the end portion 2 of one base material 1 and the other base material 1 are positioned. It is characterized in that the end portion 4 of 3 and the end portion 4 of 3 are overlapped and bonded with an adhesive 5.

In addition to the method for connecting a prepreg base material according to claim 3 of the present invention, in addition to claim 1 or 2, the end portion 2 of one base material 1 and the end portion 4 of the other base material 3 are provided. It is characterized in that after being superposed with each other, they are heated and pressed to be bonded.

A method for connecting a prepreg base material according to a fourth aspect of the present invention is, in addition to the third aspect, 200 to 40.
It is characterized by heating and pressurizing at 0 ° C. and 2 to 3 kPa.

A connecting device for a prepreg base material according to a fifth aspect of the present invention is a connecting device for a prepreg base material used for producing a prepreg by impregnating and drying a resin. A connecting device for adhering and connecting an end portion 2 of a base material 1 formed of a body and an end portion 4 of another base material 3 formed of a sheet-like fiber assembly, wherein An adhesive attachment portion 6 for providing the adhesive 5 on the end portion 2 of the material 1, an end surface 2a of one of the base materials 1 and an end surface 4a of the other base material 3 within the width H of the adhesive 5. Are positioned so that the end portion 2 of one base material 1 and the other base material 3 are
And an overlapping portion 7 for overlapping the end portion 4 of the above and adhering with an adhesive 5.

A prepreg base material connecting device according to a sixth aspect of the present invention is a prepreg base material connecting device used for producing a prepreg by impregnating and drying a resin. A connecting device for adhering and connecting an end portion 2 of a base material 1 formed of a body and an end portion 4 of another base material 3 formed of a sheet-like fiber assembly, wherein The adhesive 5 is provided on the material 1 and the adhesive 5
The adhesive attachment portion 6 for forming the end portion 2 of the one base material 1 provided with the adhesive agent 5 by cutting the one base material 1 at the portion provided with the adhesive attachment portion 6. The end surface 2a of one base material 1 and the end surface 4a of the other base material 3 are positioned within the width H of the adhesive 5 so that the end portion 2 of the one base material 1 and the other base material 3 are positioned. And an overlapping portion 7 for overlapping the end portion 4 of the above and adhering with an adhesive 5.

In addition to the device for connecting a prepreg base material according to a seventh aspect of the present invention, in addition to the fifth or sixth embodiment, the end portion 2 of the one base material 1 and the other base material 3 which are overlapped with each other. It is characterized in that a pressurizing tool 8 for pressurizing the end portion 4 is arranged in the overlapping portion 7.

Further, in addition to the fifth to seventh aspects, the prepreg base material connecting device according to an eighth aspect of the present invention further includes a support base 9 for supporting one base material 1 on which the adhesive 5 is provided. ,
A cutting blade 10 for cutting the one base material 2 supported by the support base 9 is arranged in the adhesive attachment portion 6.

In addition to the eighth aspect, the prepreg base material connecting device according to the ninth aspect of the present invention has a suction port 11 for sucking and holding the one base material 1 on which the adhesive 5 is provided.
Is formed on the support base 9.

In addition to the apparatus for connecting a prepreg base material according to a tenth aspect of the present invention, in addition to the eighth or ninth aspect, the one base material 1 on which the adhesive 5 is provided is conveyed to the support base 9. It is characterized in that it is provided with a holding tool 12 for holding one of the base materials 1.

The prepreg base material connecting device according to an eleventh aspect of the present invention is the support base between the adhesive attachment part 6 and the superposing part 7, in addition to any one of the eighth to tenth aspects. It is characterized in that 9 is formed so as to be movable.

A prepreg base material connecting device according to a twelfth aspect of the present invention is the one base material provided with the adhesive 5 in the overlapping portion 7, in addition to any one of the eighth to eleventh aspects. It is characterized in that the support base 9 is movably formed so as to come close to the end 4 of the other base material 3 in a state where the end 2 of 1 is supported by the support 9.

A prepreg base material connecting device according to a thirteenth aspect of the present invention is the support device according to the twelfth aspect.
Is formed as the pressure tool 8.

In addition to the apparatus for connecting a prepreg base material according to a fourteenth aspect of the present invention, in addition to any one of the fifth to thirteenth aspects, the other base material 3 is cut to cut the other base material 3. It is characterized by comprising a cutting blade 13 for forming the end portion 4 and a pedestal 14 for supporting the other base material 3 when the other base material 3 is cut. .

The prepreg base material connecting device according to a fifteenth aspect of the present invention, in addition to the fourteenth aspect, holds the other base material 2 by suction when the other base material 2 is cut. It is characterized by comprising a suction holder 15 for

In addition to the prepreg base material connecting device according to a sixteenth aspect of the present invention, in addition to any of the sixth through fifteenth aspects, the cutting blades 10 and 13 are provided in the lateral direction of the base materials 1 and 3. It is characterized by being formed so as to be movable.

In addition to the prepreg base material connecting device according to a seventeenth aspect of the present invention, in addition to any of the seventh to sixteenth aspects, the pressurizing tool 8 is provided with a heating means for the base materials 1 and 3. It is characterized by being formed.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

As the base materials 1 and 3, it is possible to directly use a sheet-like long fiber assembly which has been conventionally used as a base material of a prepreg. For example, a glass cloth (glass woven cloth) or a glass non-woven cloth can be used. Alternatively, woven or non-woven fabric using synthetic fibers such as polyester fibers and aramid fibers can be used. The base materials 1 and 3 may be thick ones or ultrathin ones having a thickness of 30 to 60 μm. As the adhesive 5, a liquid or tape-like material (adhesive tape) made of a thermosetting resin or a thermoplastic resin can be used.

Then, an example of the method of connecting the base materials according to claim 1 is performed as follows. First, as shown in FIGS. 1A and 1B, an adhesive 5 is provided (attached) on the surface (upper surface) of the end portion (shorter end portion) 2 of one base material 1. The end portion 2 on which the adhesive 5 is provided may use the end portion of the raw material of the base material 1 as it is, or a cut end portion formed by cutting the base material 1 of the raw material along the lateral direction. The end 2 on which the adhesive 5 is provided
Also good. Since the end portion of the original substrate 1 is formed in a wavy shape instead of a straight shape, it may be difficult to connect,
The cut end formed by cutting the base material 1 of the original fabric as described above is preferably the end 2 on which the adhesive 5 is provided. Also,
When the adhesive 5 is liquid, the adhesive 5 can be provided along the end portion 2 by applying it using a nozzle or the like.
When the adhesive 5 is in the form of a tape, the adhesive 5 can be provided along the end 2 by sticking. Further, the adhesive 5 can be provided on the entire surface of the end portion 2, and therefore, the width H of the adhesive 5 is 20 to 50 mm or more, like the length of the end portion 2 in the longitudinal direction of the substrate 1. One of the base materials 1 is formed to be large and is provided with the adhesive 5.
The end surface 2a of the end portion 2 is located within the width H of the adhesive 5.

Next, as shown in FIG. 1C, the surface of the adhesive 5 provided on the end 2 of the one base material 1 and the back surface (bottom surface) of the end 4 of the other base material 3 are described. The end portion 2 of the one base material 1 and the end portion 4 of the other base material 3 are overlapped with each other so as to contact with each other. At this time, the end surface 4a of the other base material 3 is placed within the range of the width H of the adhesive 5 provided on the end portion 2 of the one base material 1 so as to be superposed. The end 4 of the other base material 3 can be formed in the same manner as the end 2 of the one base material 1. Then, in this way, the end portion 2 of the one base material 1
When the end portion 4 of the other base material 3 is superposed, the adhesive 5
Is to impregnate the end portions 2 and 4 (including the end faces 2a and 4a) of both base materials 1 and 3 and the adhesive 5 is solidified or hardened, whereby the end portion 2 of one base material 1 is The end portion 4 of the other base material 3 can be bonded with the adhesive 5.

Another example of the method of connecting the base materials according to claim 1 is performed as follows. First, in the same manner as above, the adhesive 5 is provided on the surface (upper surface) of the end portion (shorter end portion) 2 of the one base material 1. At this time, as shown in FIG. The agent 5 is provided so as to extend outside the end surface 2a of the substrate 1 by 1 to 2 mm. Next, as shown in FIG. 2B, in the same manner as described above, the front surface of the adhesive 5 provided on the end portion 2 of the one base material 1 and the back surface (lower surface of the end portion 4 of the other base material 3). )
The end portion 2 of the one base material 1 and the end portion 4 of the other base material 3 are overlapped with each other so as to be in contact with each other, and the end portion 2 of the one base material 1 and the end portion 4 of the other base material 3 are overlapped. And are bonded with an adhesive 5. Then, in this way, the adhesive 5 is applied from the end surface 2a of the base material 1 to
The end surface 2a is provided by protruding outside by 2 mm.
The adhesive 5 wraps around and adheres to the end surface 2a.
More adhesive 5 can be impregnated by the end face 2
It is possible to reliably perform the sealing of a. In addition, also in the method of the said FIG. 1 (a)-(c), one base material 1
When the end portion 2 of the base material 3 and the end portion 4 of the other base material 3 are overlapped and pressed, the adhesive 5 is removed from the end surface 2a of the base material 1
It is preferable to adjust the attachment amount, attachment position, etc. of the adhesive 5 so as to protrude to the outside by ~ 2 mm.
The same effects as those of (a) and (b) can be obtained.

On the other hand, the method of connecting the base materials according to claim 2 is performed as follows. First, as shown in FIGS. 3A and 3B, the adhesive 5 is provided (attached) on the surface (upper surface) of one base material 1. The location where the adhesive 5 of the base material 1 is provided is preferably near the end of the raw material of the base material 1 in order to reduce the amount of the base material 1 to be cut off. The adhesive 5 can be provided at an arbitrary position on the base material 1.
The adhesive 5 can be provided by applying the liquid adhesive 5 or pasting the tape-like adhesive 5 in the same manner as described above, but the adhesive 5 is applied in the lateral direction of the substrate 1. It is provided along. Further, the width of the adhesive 5 provided at this time is formed to be larger than the width H of the adhesive 5 provided on the end portion 2 described later. After the adhesive 5 is provided on the base material 1 in this manner, one of the base materials 1 is cut in the lateral direction at the portion where the adhesive 5 is provided.
As shown in (c), the end portion 2 of the one base material 1 provided with the adhesive 5 is formed. The width H of the adhesive 5 provided on the end portion 2 after cutting the base material 1 is similar to the above, and the end surface 2a of the end portion 2 of the one base material 1 provided with the adhesive 5 is the adhesive agent. It will be located within the width H of 5.

Next, as shown in FIG. 3 (d) in the same manner as described above, the surface of the adhesive 5 provided on the end portion 2 of the one base material 1 and the back surface of the end portion 4 of the other base material 3. The end portion 2 of the one base material 1 and the end portion 4 of the other base material 3 are overlapped with each other so as to be in contact with the (lower surface). At this time, the end surface 4 of the other base material 3 is set within the width H of the adhesive 5 provided on the end portion 2 of the one base material 1.
Superimpose so that a is positioned. Other base material 3
The end portion 4 can be formed in the same manner as the end portion 2 of the one base material 1 as described above. Then, when the end portion 2 of the one base material 1 and the end portion 4 of the other base material 3 are superposed in this manner, the adhesive 5 is applied to the end portions 2 of both the base materials 1 and 3,
4 (including the end faces 2a, 4a) and the adhesive 5
Is solidified or hardened, whereby the end portion 2 of one base material 1 and the end portion 4 of the other base material 3 are bonded to each other by the adhesive 5
Can be glued with.

In any of the above-mentioned embodiments, after the end portion 2 of one base material 1 and the end portion 4 of the other base material 3 are overlapped with each other, the overlapped portion is heated and pressed to bond them. preferable. By heating and pressurizing as described above, the impregnating property of the adhesive 5 into the end portions 2 and 4 is enhanced and the adhesiveness of the end portions 2 and 4 is enhanced, so that the end portion 2 of one base material 1 and the other base material 1 are End 4 of 3
When the adhesive 5 is a thermosetting resin, the curing speed is increased so that the end portions 2 and 4 can be bonded quickly and the productivity can be improved. Can be improved. Further, the temperature and pressure at the time of heating and pressurizing may be appropriately adjusted depending on the kind of the adhesive 5, the thicknesses of the base materials 1 and 3, and the like, for example, 200 to 400 ° C., 2 to
It can be heated and pressed at 3 kPa for about 30 seconds.

In the present invention, the end surface 2a of one base material 1 and the end surface 4a of the other base material 3 are within the width H of the adhesive 5.
Since the end portions 2 of the one base material 1 and the end portions 4 of the other base material 3 are overlapped with each other and bonded with the adhesive 5, the end portions 2, 4 of the base materials 1, 3 are positioned. The adhesive 5 can be impregnated (including the end faces 2a and 4a), and the impregnated adhesive 5 can seal the ends 2 and 4 of the base materials 1 and 3 to prevent unraveling. Ends 2 and 4 of base materials 1 and 3
It is possible to prevent unraveling. When the connected base materials 1 and 3 are used as a base material for manufacturing a prepreg, unraveling does not occur, so that deterioration of the homogeneity of the product prepreg and adverse effects on the prepreg manufacturing facility can be prevented. It is a thing. In addition, the end surface 2a of the base material 1 on one side is within the width H of the adhesive 5.
And the end surface 4a of the other base material 3 are positioned, and therefore, the overlapping portion of the end portion 2 of the one base material 1 and the other base material 3 and the other base material 3 on both sides of the portion bonded with the adhesive 5. It is possible to prevent an overlapping portion between the end 4 of the base material and the base material 1 on one side from occurring, and therefore, by using the connected base materials 1 and 3 as a base material for manufacturing a prepreg,
The amount of varnish impregnated can be prevented from increasing, and the product and manufacturing equipment are not polluted.

FIG. 4 shows an example of the base material connecting device of the present invention. In this connecting device, the one base material 1 is the new base material N, the other base material 3 is the old base material O, and the front end of the new base material N and the rear end of the old base material O are the above base materials. They are connected by the method of connecting materials. Reference numeral 6 in FIG. 4 is formed as an adhesive attachment portion and is a portion for providing the adhesive 5 on the new base material N (one base material 1), and reference numeral 7 is an end of the new base material N. This is a portion for overlapping and adhering the portion 2 and the end portion 4 of the old base material O (the other base material 3). Further, this connecting device is provided with a support base 9 movably formed between the adhesive attachment portion 6 and the overlapping portion 7. The support base 9 is attached to a support base vertical drive unit 20 formed of an air cylinder or the like, and the support base vertical drive unit 20 allows the support base 9 to be vertically driven. Further, the support base vertical drive unit 20 is movably mounted on a horizontally long guide rail 23, and the support base vertical drive unit 20 is formed of an air cylinder or the like.
1 is mounted on the guide rail 23 so that the support base vertical drive device 21 can be horizontally driven on the guide rail 23. The horizontal movement of the support base vertical drive unit 20 causes the support base 9 to move in the horizontal direction, and the horizontal movement causes the support base 9 to move to the adhesive attaching portion 6 and the overlapping portion 7. It is something that moves between and.

Further, as shown in FIG. 5, a plate-shaped cutting table 24 formed of Teflon (registered trademark) or the like is provided on approximately half of the upper surface of the support base 9. Also, the support base 9
A large number of suction ports 11 are provided in the other approximately half of the upper surface of the. The suction port 11 is connected to a suction device such as a pump, and exerts a suction action on the new base material N placed on the support base 9 through the suction port 11 so that the new base material N is supported by the support base 9. It can be adsorbed and held on the upper surface. In addition to the support 9, the adhesive attachment unit 6 is provided with an adhesive supply device for supplying the adhesive 5 to the new base material N and a cutting blade (splice cutter) 10 for cutting the new base material N. Has been.

Further, instead of the above-mentioned suction port 11, FIG.
As shown in FIGS. 12 to 12, a clamp device 50 that presses and holds the new base material N may be provided on the upper surface of the support base 9. The clamp device 50 is formed to include a pressing clamp 51 and a pair of elevators 52. As the pressing clamp 51, a rotatably formed roll-shaped clamp is used in FIG. 10, a rod-shaped clamp such as a round bar is used in FIG. 11, and a plate-shaped clamp is used in FIG. Has been. The elevator 52 is formed of a clamp actuator such as a cylinder, and the elevator 52 is attached to the side surface of the support base 9. Then, by attaching the end portion of the pressing clamp 51 to the elevator 52,
The pressing clamp 51 is formed on the support base 9 so as to be vertically movable.

A pedestal 1 is provided in the vicinity of the overlapping portion 7 described above.
4 are provided. The pedestal 14 is attached to a pedestal vertical drive 25 formed of an air cylinder or the like,
The pedestal 14 is formed so as to be vertically movable by the pedestal vertical drive unit 25. The pedestal vertical drive 25 is a horizontal pedestal drive 2 formed by an air cylinder or the like.
The pedestal vertical drive 25 is formed by the pedestal horizontal drive 26 so as to be movable in the horizontal direction. The pedestal up-down drive 25 moves in the horizontal direction, which causes the pedestal 14 to move in the horizontal direction, and the horizontal movement causes the pedestal 14 to move in and out of the overlapping portion 7. .

The pedestal 1 is provided near the overlapping portion 7.
4 is provided with a suction holder 15 arranged so as to be opposed thereto.
The suction holder 15 has a large number of suction ports formed on the lower surface thereof, and the suction ports are connected to a suction device such as a pump built in the suction holder 15, and the old substrate O is connected to the suction holder 15 through the suction port. By exerting a suction action, the old base material O can be adsorbed and held on the lower surface of the suction holder 15. An air blow nozzle 27 is arranged near the cradle 14 and the suction holder 15. The air blow nozzle 27 blows air between the old base material O and the pedestal 14 to prevent the old base material O and the pedestal 14 from sticking to each other by static electricity or the like after cutting the old base material O. The cradle 14 is smoothly removed from the.

A cutting blade (splice cutter) 13 is provided in the overlapping portion 7. This cutting blade 13
Can be formed by, for example, a press-cutting round blade, and is formed by being attached to a rotary actuator 28 for pressing the cutting blade, as shown in FIG. The cutting blade 13 and the cutting blade 10 provided on the adhesive attachment portion 6 have the same configuration, and are in the lateral direction of the new base material N and the old base material O (the conveying direction of the new base material N and the old base material O ( It is formed so as to be movable in a direction orthogonal to the longitudinal direction), and the new base material N or the old base material O is cut by the movement of the cutting blades 10 and 13. Also, the cutting blade 1
As described above, 0 and 13 may be knife-shaped blades which are pressed against a table or the like to rotate and cut while moving (profile cutting), or the cutting blades 10 and 13 are driven by themselves. It may be a knife-shaped slitter blade that rotates with the blade, or a blade that cuts while horizontally moving with a fixed blade such as a cutter knife.

A pressing tool 30 is provided in this connecting device. The pressing tool 30 is attached to a pressing tool up-and-down driving machine 31 formed of an air cylinder or the like, and the pressing tool 30 is formed so as to be vertically movable by the pressing tool up-and-down driving machine 31. The pusher vertical drive 31 is attached to a pusher horizontal drive 32 formed of an air cylinder or the like, and the pusher vertical drive 32 allows the pusher vertical drive 31 to move horizontally. Has been formed. When the pressing tool vertical drive unit 31 moves in the horizontal direction, the pressing tool 30 also moves in the horizontal direction, which causes the pressing tool 30 to move in and out of the overlapping section 7. . Further, the pressing tool 30 and the support base 9 form a pressing tool 8, and the pressing tool 30 and the support base 9 are each provided with a heating means formed by a heater such as a splice heater. There is.

Further, this connecting device is provided with a holding tool 12. The holding tool 12 is formed by a rod-shaped clamp, a plate-shaped clamp, a roll, or the like, and is formed so as to be able to hold the vicinity of the end portion of the new base material N of the original material wound in a roll shape. Further, the holding tool 12 is attached to a chain or belt suspended in an endless loop, and as the chain or belt advances, the holding tool 12 moves to move the new base material N wound in a roll shape. It can be extended while unraveling. Moreover, the old base material O
A pair of transport rolls 35 for transporting the new base material N, a transport roll 36 for transporting the new base material N, and a pinch roll 37 for stopping the transport of the old base material O are provided. The pair of transport rolls 35 are horizontally opposed to each other with the overlapping portion 7 and the suction holder 15 interposed therebetween. That is, the transport roll 3
5 are arranged side by side in the upstream and downstream directions of the transport direction of the old base material O. The pinch roll 37 is attached to a roll driving machine 38 formed by a driving device such as an air cylinder,
The pinch roll 37 is formed by the roll driving device 38 so as to be close to and away from the transport roll 35 on the downstream side.

Then, the old base material O and the new base material N are connected using the connecting device as described above as follows. The old base material O is transported to the prepreg manufacturing process such as the impregnation process of a resin-containing varnish and the drying process, and is hung in one direction in the longitudinal direction while being suspended by the pair of transport rolls 35, 35. It is transported as it advances. The old base material O is horizontally transported between the pair of transport rolls 35, 35, and the cutting blade 10 and the suction holder 15 are arranged above the old base material O in the horizontally transported portion. At the same time, the pedestal 14 is disposed below the old base material O in the portion that is conveyed horizontally.

The old base material O conveyed as described above
Before the end of the new base material approaches, the new base material N is processed for connection. First, as shown in FIG. 7, the support base horizontal drive unit 21 moves the support base vertical drive unit 20 and the support base 9 to dispose the support base 9 on the adhesive attachment portion 6. Next, the clamp 12
The new base material N wound in a roll shape is clamped near the end of the new base material N, and the clamp 12 is moved to the adhesive attachment portion 6 to unroll and stretch the new base material N. The vicinity of the end portion of the base material N (inside the portion sandwiched by the sandwiching tool 12) is placed on the support base 9. At this time,
The holding tool 12 is hung from the support base 9, and a new base material N is arranged and supported so as to straddle the suction port 11 of the support base 9 and the upper side of the cutting table 24. Next, the new base material N is suction-held on the upper surface of the support base 9 by the suction action from the suction port 11 so as not to easily move. Further, in the case of the support base 9 provided with the clamp device 50, the pressing clamp 5 is operated by the operation of the elevator 52.
The new base material N is held on the upper surface of the support base 9 so as not to easily move, by moving 1 down to sandwich the new base material N between the pressing clamp 51 and the support base 9.

After that, the new base material N is cut and the adhesive 5 is attached to the new base material N. When the base material connecting method according to claim 1 as shown in FIGS. The procedure of cutting the new base material N and attaching the adhesive 5 to the new base material N is different between the case of performing the base material connecting method according to claim 2 as shown in FIG. When performing the base material connecting method according to claim 1, first, the new base material N suction-held on the support base 9 is cut in the lateral direction on the cutting table 24 by the cutting blade 10 for connection. The end portion 2 is formed, and the holding tool 12 and a part of the new base material N held by the holding tool 12 are separated. Next, the adhesive 5 is provided on the end portion 2 of the new base material N formed by cutting by applying the tape-like adhesive 5 or applying the liquid adhesive 5 with the nozzle 55 of the adhesive supply device. . On the other hand, when the method for connecting base materials according to claim 2 is performed, first, a tape-shaped adhesive 5 is attached or a liquid adhesive 5 is applied by the nozzle 55 of the adhesive supply device to form a new base material. The adhesive 5 is provided on the material N. At this time, the adhesive 5 is provided on the portion of the new base material N arranged on the cutting table 24. Next, by cutting the new base material N in the lateral direction at the portion where the adhesive 5 is provided, the connecting end portion 2 of the new base material N provided with the adhesive 5 is formed.

Even if the adhesive 5 is provided on the end portion 2 of the new base material N by any of the above methods, the end surface 2a of the new base material N is located within the width H of the adhesive material 5. become. After that, while maintaining the state in which the new base material N is suction-held on the support base 9, as shown in FIG. 9, the support base vertical drive machine 21 moves the support base vertical drive machine 20 and the support base 9 as shown in FIG. The support base 9 and the end portion 2 of the new base material N provided with the adhesive 5 are arranged on the overlapping portion 7. At this time, the cutting blade 13 arranged in the overlapping portion 7 is positioned above the width H of the adhesive 5 provided on the end portion 2 of the new base material N. In this way, it waits until the end of the old base material O being conveyed approaches.

Next, when the end of the old base material O approaches,
The pinch roll 37 is moved closer to the transport roll 35 on the downstream side by the roll driving device 38, and the old base material O is sandwiched between the transport roll 35 and the pinch roll 37, whereby the old base material O
Stop the transportation of. Even when the transportation of the old base material O is stopped in this way, since the step roll 39 is provided on the downstream side of the stop position and the old base material O is transported via the step roll 39, The transport of the old base material O is not stopped in the manufacturing process of the prepreg, and it is possible to prevent the productivity of the prepreg from being reduced even though the old base material O and the new base material N are connected. Next, the cradle horizontal drive 26 causes the cradle vertical drive 25 and the cradle 14 to move.
Is moved toward the side (upstream side) opposite to the transport direction of the old base material O, and approximately half of the upstream side of the pedestal 14 is introduced into the overlapping portion 7. Next, the suction holder 15 is operated to suction-hold the old base material O on the lower surface of the suction holder 15, and the cradle up / down drive 25 moves the cradle 14 upward to move the suction holder 1
The old base material O is sandwiched between the lower surface of 5 and the upper surface of the pedestal 14 on the downstream side.

Next, as shown in FIG.
In, the part of the old base material O received on the pedestal 14 is cut by the cutting blade 13 in the lateral direction. By cutting the old base material O in this manner, the end portion 4 for connecting the old base material O is formed. Further, the old base material O on the upstream side of the cut portion is wound up. Next, in the overlapping portion 7, the support base 9 is moved upward by the support base vertical drive unit 20 to position the end 2 of the new base material N at the bonding position. Next, the cradle horizontal drive 26 moves the cradle vertical drive 25 and the cradle 14 toward the transport direction (downstream side) of the old base material O, and holds the cut old base material O. The pedestal 14 is overlaid 7
Derived from. At the same time, the blowing of air from the air blow nozzle 27 is started. Next, the pedestal up / down drive 25 moves the pedestal 14 downward to release the sandwiching of the cut old base material O, whereby the cut old base material O is sucked and held by the air from the air blow nozzle 27. It falls apart from the lower surface of the tool 15. At this point, the blowing of air from the air blow nozzle 27 is stopped. Then, the end 4 of the old base material O is superposed on the end 2 of the new base material N supported on the support base 9 by dropping the old base material O. Since the old base material O is cut by the cutting blade 13 disposed in the overlapping portion 7 above the width H of the adhesive 5 provided on the second base material 2, the end surface (cut end surface) 4a of the old base material O is cut. Is a new base material N
It will fall onto the adhesive 5 provided at the end 2 of the. Therefore, the end surface 4a of the old base material O can be positioned within the width H of the adhesive 5 provided on the end portion 2 of the new base material N.

After that, the pressing tool vertical driving machine 32 horizontally moves the pressing tool vertical driving machine 31 and the pressing tool 30 in the conveying direction (downstream side) of the old base material O and the pressing tool vertical driving machine 31. The pressing tool 30 is moved downward by the above to be introduced into the overlapping portion 7, and is further supported by the pressing tool 30 via the overlapping portion of the end 4 of the old base material O and the end 2 of the new base material N. Overlay the table 9. Then, the pressing tool 30 and the support base 9
By heating and pressing the overlapped portion of the end 4 of the old base material O and the end 2 of the new base material N with the pressurizing tool 8 consisting of
The adhesive 5 impregnates the end portion 4 of the old base material O and the end portion 2 (including the end surfaces 2a and 4a) of the new base material N, and at the same time, the adhesive agent 5 solidifies or cures. The end 4 of the material O and the end 2 of the new base material N can be bonded with the adhesive 5. The heating and pressurizing conditions are the same as above.

After that, the pressing tool 30 is moved up by the pressing tool up-and-down drive unit 31 so as to be pulled out from the overlapping portion 7, and the supporting table 9 is moved down by the supporting stand up-and-down driving machine 20, so that the old base material O is removed. The end portion 4 and the end portion 2 of the new base material N are unpinched from the bonded portion (connection portion), and at the same time, the suction action of the suction holder 15 and the suction port 11 of the support base 9 is stopped to stop the old base material. Release the suction holding of O and the new base material N. Further, in the case of the support base 9 provided with the clamp device 50, the lifting and lowering device 52 moves the pressing / holding tool 51 upward to release the holding of the new base material N by the pressing / holding tool 51 and the upper surface of the support base 9. Next, the pressing tool vertical driving machine 32 horizontally moves the pressing tool vertical driving machine 31 and the pressing tool 30 toward the opposite side (upstream side) to the conveying direction of the old base material O and returns to the original standby position. At the same time, the support base vertical drive unit 21 moves the support base vertical drive unit 20 and the support base 9 to the adhesive attachment portion 6. After that, the roll driver 38 separates the pinch roll 37 from the downstream transport roll 35 to release the pinching of the old base material O by the downstream transport roll 35 and the pinch roll 37, and the old base material O is transported. Resume. Then, when the old base material O has been conveyed, the new base material N is subsequently conveyed, and the old base material O is continuously transferred to the new base material N without stopping the manufacturing process of the prepreg. Is what you can do.

[0050]

As described above, according to the invention of claim 1 of the present invention, the end portion of the base material formed of the sheet-shaped fiber aggregate and the other base material formed of the sheet-shaped fiber aggregate In adhering and connecting the ends, an adhesive is provided at the end of one base material, and the end surface of one base material and the end surface of the other base material are positioned within the range of the width of the adhesive. In this way, the ends of one base material and the ends of the other base material are overlapped and bonded with an adhesive, so that the ends of the base materials including both end surfaces are impregnated with the adhesive. The adhesive can be adhered to the base material, and the impregnated adhesive agent can seal the end portion of the base material to prevent the base material from being disentangled and prevent the end portion of the base material from being disentangled. When the connected base material is used as a base material for manufacturing a prepreg, unraveling does not occur, so that it is possible to prevent deterioration of homogeneity of the prepreg as a product and adverse effects on the prepreg manufacturing facility. . Further, since the end surface of one base material and the end surface of the other base material are located within the range of the width of the adhesive, the end portion of the one base material and the other base material on both sides of the portion bonded with the adhesive. It is possible to prevent the overlapping portion between the base material and the end portion of the other base material from overlapping with the one base material. Therefore, the connected base material is used as a base material for producing a prepreg. By using it, it is possible to prevent the impregnated amount of varnish from increasing and to prevent the product and manufacturing equipment from being contaminated.

Further, the invention of claim 2 of the present invention provides that an end portion of a base material formed of a sheet-shaped fiber assembly and an end portion of another base material formed of a sheet-shaped fiber assembly are provided. When connecting by adhesion, one base material is provided with an adhesive, and one base material provided with the adhesive is cut by cutting the one base material at a portion where the adhesive is provided. The end surface of one base material and the end surface of the other base material are positioned so that the end surface of one base material and the end surface of the other base material are located within the range of the width of the adhesive provided at the end part of the base material. Since the edges are overlapped and bonded with an adhesive, it is possible to impregnate and bond the edges of the base material including both end surfaces of the base material with the adhesive. It is possible to seal the part to prevent it from coming loose and prevent it from coming loose at the edge of the substrate. When the connected base material is used as a base material for manufacturing a prepreg, unraveling does not occur, so that it is possible to prevent deterioration of homogeneity of the prepreg as a product and adverse effects on the prepreg manufacturing facility. . Further, since the end surface of one base material and the end surface of the other base material are located within the range of the width of the adhesive, the end portion of the one base material and the other base material on both sides of the portion bonded with the adhesive. It is possible to prevent the overlapping portion between the base material and the end portion of the other base material from overlapping with the one base material. Therefore, the connected base material is used as a base material for producing a prepreg. By using it, it is possible to prevent the impregnated amount of varnish from increasing and to prevent the product and manufacturing equipment from being contaminated.

Further, the invention of claim 5 of the present invention provides that an end portion of a base material formed of a sheet-shaped fiber assembly and an end portion of another base material formed of a sheet-shaped fiber assembly are provided. A connecting device for adhering and connecting, wherein an adhesive attachment part for providing an adhesive on one end of one base material, an end face of one base material and the other within the width range of the adhesive. Since an end portion of one base material and an end portion of the other base material are overlapped with each other so as to position the end surface of the base material of One end of one base material is provided with an adhesive at the end of one base material and the end surface of one base material and the end surface of the other base material are positioned within the width range of the adhesive at the overlapping part. By overlapping and adhering the end of the material and the end of the other base material, the end surface of the base material including the end surfaces of both base materials The adhesive can be impregnated for adhesion, and the impregnated adhesive can seal the edges of the substrate to prevent loosening and prevent the edges of the substrate from unraveling. It is a thing. When the connected base material is used as a base material for manufacturing a prepreg, unraveling does not occur, so that it is possible to prevent deterioration of homogeneity of the prepreg as a product and adverse effects on the prepreg manufacturing facility. . Further, since the end surface of one base material and the end surface of the other base material are positioned within the range of the width of the adhesive,
It should be ensured that there is no overlap between the edge of one base and the other base and the overlap between the end of the other base and one base on both sides of the area where the adhesive is applied. Therefore, by using this connected base material as a base material for the production of prepreg, the impregnated amount of varnish can be prevented from increasing and the product and the production equipment can be kept clean. is there.

Further, the invention of claim 6 of the present invention provides that an end portion of a base material formed of a sheet-shaped fiber assembly and an end portion of another base material formed of a sheet-shaped fiber assembly are provided. A connecting device for adhering and connecting, wherein one base material is provided with an adhesive, and one base material is provided with an adhesive by cutting the one base material at a portion where the adhesive is provided. An adhesive attachment portion for forming a portion, and one of the end surface of one base material and the end surface of the other base material are positioned within the range of the width of the adhesive provided by the adhesive attachment portion. Since the end portion of the base material and the end portion of the other base material are provided with a superimposing portion for adhering the end portions of the other base material with an adhesive, the adhesive is provided at the end portion of one of the base materials at the adhesive attachment portion. At the same time, the end surface of one base material and the end surface of the other base material should be positioned within the width of the adhesive at the overlapping part. Then, the end portions of one base material and the end portions of the other base material are overlapped and adhered to each other, so that the end portions of the base materials including both end surfaces of the base materials are impregnated with the adhesive agent and bonded. In addition, the impregnated adhesive agent can seal the end portion of the base material to prevent loosening and prevent the end portion of the base material from being loosened.
When the connected base material is used as a base material for manufacturing a prepreg, unraveling does not occur, so that it is possible to prevent deterioration of homogeneity of the prepreg as a product and adverse effects on the prepreg manufacturing facility. . Further, since the end surface of one base material and the end surface of the other base material are located within the range of the width of the adhesive, the end portion of the one base material and the other base material on both sides of the portion bonded with the adhesive. It is possible to prevent the overlapping portion between the base material and the end portion of the other base material from overlapping with the one base material. Therefore, the connected base material is used as a base material for producing a prepreg. By using it, it is possible to prevent the impregnated amount of varnish from increasing and to prevent the product and manufacturing equipment from being contaminated.

[Brief description of drawings]

FIG. 1 shows an example of an embodiment of a connection method of the present invention, in which (a) and (c) are sectional views and (b) is a perspective view.

FIG. 2 shows another embodiment of the connection method of the present invention, in which (a) and (b) are sectional views.

3A and 3B show another example of the above, wherein FIGS. 3A, 3C and 3D are sectional views and FIG. 3B is a perspective view.

FIG. 4 is a schematic diagram showing an example of an embodiment of a connection device of the present invention.

FIG. 5 is a perspective view showing an example of the above-mentioned support base.

FIG. 6 is a schematic view showing a part of the above.

FIG. 7 is a schematic diagram showing a part of the above operation.

FIG. 8 is a schematic view showing a part of the above operation.

FIG. 9 is a schematic view showing a part of the above operation.

FIG. 10 shows another example of the above-mentioned support base, (a) is a front view and (b) is a side view.

11A and 11B show another example of the above support base, FIG. 11A is a front view, and FIG. 11B is a side view.

FIG. 12 shows another example of the above-mentioned support base, (a) is a front view and (b) is a side view.

FIG. 13 is a schematic diagram showing an example of a conventional connection device.

FIG. 14 is a cross-sectional view showing a conventional connection method.

[Explanation of symbols]

1 base material 2 ends 2a end face 3 base materials 4 edges 4a end face 5 adhesive 6 Adhesive installation section 7 Overlap part 8 pressure tool 9 Support stand 10 cutting blades 11 Suction port 12 clamps 13 cutting blade 14 cradle 15 Suction holder

Continued front page    (72) Inventor Hiroshi Kawaguchi             5 Co., Ltd., 3 Imaichi-cho, Moriyama City, Shiga Prefecture             Ichikin Engineering F term (reference) 3B154 AA06 AA07 AA13 AB20 AB22                       BA48 BB02 BB12 BB63 BC29                       BC31 BD14 BF01 BF02 DA24

Claims (17)

[Claims] 1. A method for connecting a base material for a prepreg used for producing a prepreg by impregnating and drying a resin, the end portion of the base material formed from a sheet-shaped fiber aggregate and a sheet-shaped fiber. When bonding and connecting the end of another base material formed by the aggregate, an adhesive is provided on the end of one base material, and the end surface of the one base material is within the width of this adhesive. And the end surface of the other base material are positioned so that the end portion of one base material and the end portion of the other base material are overlapped and bonded by an adhesive agent. Method. 2. A method of connecting a base material for a prepreg used for producing a prepreg by impregnating and drying a resin, wherein the end portion of the base material formed from a sheet-shaped fiber aggregate and a sheet-shaped fiber. When connecting the ends of the other base material formed by the assembly by adhesion, the adhesive is provided by providing the adhesive on one base and cutting the one base at the part where the adhesive is provided. To form an end portion of one base material, and to position the end surface of one base material and the end surface of the other base material within the range of the width of the adhesive provided on the end portion of one base material. A method for connecting a prepreg base material, characterized in that the end portion of one base material and the end portion of the other base material are superposed and bonded with an adhesive. 3. The base material for prepreg according to claim 1, wherein one end of the base material and the end portion of the other base material are overlapped with each other and then heated and pressed to bond them. Connection method. 4. The method for connecting a prepreg base material according to claim 3, wherein heating and pressurization is performed at 200 to 400 ° C. and 2 to 3 kPa. 5. A connecting device for a prepreg base material used for producing a prepreg by impregnating and drying a resin, wherein the end portion of the base material and the sheet-like fiber formed of a sheet-like fiber assembly are used. A connecting device for adhering and connecting an end portion of another base material formed of an assembly, wherein an adhesive attachment portion for applying an adhesive agent to the end portion of one base material, and this adhesive The end surface of one base material and the end surface of the other base material are placed within the range of the width of the agent so that the end parts of the one base material and the end part of the other base material are overlapped with each other by an adhesive. A connecting device for a prepreg base material, comprising: an overlapping portion for adhering. 6. A method for connecting a base material for a prepreg used for producing a prepreg by impregnating and drying a resin, the end portion of the base material formed of a sheet-shaped fiber assembly and a sheet-shaped fiber. A connecting device for adhering and connecting to an end portion of another base material formed of an aggregate, wherein one base material is provided with an adhesive and one base material is provided at a portion where the adhesive is provided. An adhesive attachment portion for forming an end portion of one base material provided with an adhesive by cutting, and an end surface of one base material within the range of the width of the adhesive provided by the adhesive attachment portion. An end portion of one base material and an end portion of the other base material so that the end surface of the other base material is positioned and an overlapping portion for adhering with an adhesive. A characteristic prepreg base material connection device. 7. The pressure-applying tool for pressurizing an end of one of the base materials and an end of the other base material that are superposed is arranged in the superposing part. 6. The connection device for a prepreg substrate according to item 6. 8. A support base for supporting one base material provided with an adhesive, and a cutting blade for cutting the one base material supported by the support base are arranged in the adhesive attachment portion. The connection device for a base material for prepreg according to any one of claims 5 to 7, wherein the connection device is a base material for prepreg. 9. The prepreg base material connecting device according to claim 8, wherein a suction port for sucking and holding one base material on which the adhesive is provided is formed on the support base. 10. The prepreg according to claim 8 or 9, further comprising a holding tool for holding one base material on which one adhesive is provided so as to convey the one base material to a support base. Substrate connection device. 11. The prepreg base material connection device according to claim 8, wherein a support base is movably formed between the adhesive attachment portion and the overlapping portion. . 12. A support base is movably formed in the overlapping portion so that an end of one base material provided with an adhesive is in proximity to an end of another base material while being supported by the support base. The connection device for a prepreg base material according to any one of claims 8 to 11, wherein 13. The prepreg base material connecting device according to claim 12, wherein the support base is formed as a pressing tool. 14. A cutting blade for cutting the other base material to form an end portion of the other base material, and a pedestal for supporting the other base material when the other base material is cut. The prepreg base material connecting device according to any one of claims 5 to 13, further comprising: 15. The connection of the base material for prepreg according to claim 14, further comprising a suction holder for sucking and holding the other base material when the other base material is cut. apparatus. 16. The prepreg base material connecting device according to claim 6, wherein the cutting blade is formed so as to be movable in the lateral direction of the base material. 17. The connection device for a prepreg base material according to claim 7, wherein the pressing tool is provided with a heating means for the base material.