JP2006351703A - Single plate connection device of printed wiring board and its method, and printed wiring board roll manufactured by single plate connection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To connect a rear end of a front side single plate and a front end of a rear side single plate with a connection tape while making an interval therebetween approach to a proper position. <P>SOLUTION: A single plate connection device 3 includes, on a rear side of a tape sticking region 7, an end position sensor 31 for detecting, at least at two positions, positions of the rear end 1AR of the front side single plate 1A, and of the front end 1BF of the rear side single plate 1B; a single plate fixing/conveying apparatus 15 for conveying the single plate 1A forwardly; and a single plate moving/conveying apparatus 33 for moving and positioning the next single plate 1B forwardly. There are calculated inclination directions and inclination amounts of the rear end 1AR of the front side single plate 1A and of the front end 1BF of the rear side single plate 1B on the basis of position data detected by the end position sensor 31. Further, it is compared and judged whether or not there are same the inclination directions of the rear end 1AR of the front side single plate 1A and the front end 1BF of the rear side single plate 1B, and which are larger for the inclination amounts. Consequently, the interval between the rear end 1AR of the front side single plate 1A and the front end 1BF of the rear side single plate 1B is controlled to be a previously set minimum abutting interval G<SB>0</SB>. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board single board connecting apparatus and method, and a printed wiring board roll manufactured by this single board connecting method, and particularly as a printed wiring board material in the course of manufacturing a printed wiring board. For example, a single sheet cut into a predetermined length from a long sheet-like copper-clad laminate (usually referred to as “CCL”) having a predetermined width is overlapped with each other and simultaneously punched. In order to connect the single boards to each other and perform the circuit forming process in the next step, the single board connecting apparatus and method for printed wiring boards in which the single boards are bonded to each other with a connecting tape, and the single board connecting method are manufactured. The present invention relates to a printed wiring board roll.

  In recent years, the production amount of printed wiring boards, for example, FPC (Flexible Printed Circuit) has been rapidly increasing. Conventionally, as a method for manufacturing a printed wiring board, a circuit is formed on both surfaces of a thin plate-like member made of a sheet-like copper-clad laminate (CCL) having a predetermined width as a material of the printed wiring board. A long sheet-like CCL (a member in which a thin conductive film is formed on both sides of a thin plate-like base member such as polyimide) is cut into a single plate of a predetermined length, and each cut single plate A method of forming a circuit by etching or the like on a conductive film on both sides of each single plate subjected to this through hole plating is known. ing.

  The through-hole plating is performed to electrically connect circuits formed on both surfaces of the printed wiring board.

  Further, in the conventional method, when a circuit is provided for each single plate subjected to the through-hole plating, a circuit is formed for each single plate separated by one.

  On the other hand, in the other conventional method, the single plates subjected to the through-hole plating are connected to each other using a connection tape or the like, and are formed into a long shape and wound into a roll. Roll-to-roll (R-R) in which each long-connected single plate is fed out from a roll and fed in the longitudinal direction while forming a circuit on both sides of each single plate and wound on another roll. ) Method is adopted. The merits of this method are “reduction of production costs” and “production of high-value-added products with a small thickness”.

  Here, as the single plate connecting device for connecting the plurality of single plates, the rear end portion of the front single plate conveyed to a predetermined position by the transfer device, and the front end portion of the next rear single plate are used. Abutting each other, connecting the front single plate and the next rear single plate with a connecting tape, and transporting the next rear single plate to the predetermined position with the transport device A single plate connecting apparatus for connecting a plurality of single plates so as to be connected for a long time is known.

  In the single plate connecting apparatus for connecting the single plates, the single plates are sandwiched between rollers facing each other, the rollers are rotated, and the single plates are conveyed.

In the single plate connecting apparatus for connecting the single plates, the front single plate and the next rear single plate are connected to each other manually by an operator using a connecting tape.
JP-A-7-99379

  By the way, in the conventional printed wiring board manufacturing method, the through-hole for performing through-hole plating is formed almost simultaneously with a plurality of single plates superimposed, so that the through-hole can be formed efficiently. However, when a circuit is formed on both sides of a single plate, the circuit is formed for each single plate separated one by one, and thus there is a problem that the circuit cannot be formed efficiently.

  Further, in the conventional single plate connecting device for connecting single plates, the rollers are energized by actuators such as pneumatic cylinders, and the single plates are sandwiched and conveyed by each roller, so that the force for sandwiching the single plates is applied to the rollers. There is a problem that it becomes non-uniform in the longitudinal direction and each single plate may be bent and conveyed. If the single plates are bent and conveyed in this way, the single plates may be bent and connected.

  In addition, the abutting portion between the single plates is too “spread” in the longitudinal direction, “overlap” occurs in the thickness direction of the single plates, or due to unevenness of the side edges of each of the single plates If the “side edge unevenness” or the like occurs, it may cause problems in the next process, such as adversely affecting the productivity of roll processing and the quality of a single plate.

  For example, the above “overlap” means that when a plurality of connected single plates are wound up in a roll shape, the single plates swell and are crushed, so that the single plates in the upper and lower layers are wrinkled and pressed. There was a problem that it was caused. Moreover, since the alignment hole provided in each single plate does not enter the field of view of the sensor, a situation that cannot be found by the sensor occurs.

  In addition, the above-mentioned “spread” is caused by the fact that the connecting tape exposed at the interval between the abutting portions is adhered to the lower single plate when a plurality of connected single plates are rolled up. When each single plate is fed from the roll to the roll in the circuit forming step, for example, there is a problem that the single plate is not peeled off from the roll when the distance between the butted portions is, for example, 2 mm or more. In addition, when each single plate is fed from roll to roll, the sheet feeding hole provided in each single plate is displaced, so that it is not sent to the alignment position.

  Further, in the circuit forming process, the side edge position of the single plate is detected by an EPC (Edge Position Control) sensor, and the roll position of each single plate connected by this detection data is feedback-controlled, so that each single plate is moved to the work area. The position is adjusted to an appropriate position in the width direction (dry film lamination, exposure, development, etching, etc.). However, if there is the above-mentioned “side edge unevenness”, the EPC sensor does not operate correctly.

  Further, in the single plate connecting device for connecting the single plates, the single plates are connected to each other by attaching the connecting tape to the abutting portion of each single plate by an operator's manual work, so that the single plates are connected efficiently. There was a problem that I could not.

  The present invention has been made to solve the above-described problems.

The printed wiring board single board connecting device of the present invention is a printed wiring board single board connecting device for connecting plate-like single boards having a predetermined length and width.
Positioned in the tape affixing region so that the longitudinal front end of the next single veneer is closely opposed to the longitudinal rear end of the front single veneer among the connected single plates. In addition, in order to connect the front single plate and the rear single plate to each other, a tape applying device for attaching a connecting tape to the rear end portion of the front single plate and the front end portion of the rear single plate When,
An end position detection device that is provided on the rear side of the tape affixing region and detects a position of a rear end portion of the front single plate and a front end portion of the rear single plate in at least two places;
Based on the position of the rear end portion of the front single plate detected by the end position detecting device, the front single plate is positioned so as to position the rear end portion of the front single plate in the tape application region. A single plate fixed conveying device provided to be fixed to the front side of the tape affixing region to be conveyed forward in the longitudinal direction;
Based on the position of the front end portion of the rear single plate detected by the end position detection device, the front end portion of the rear single plate is positioned at the rear end portion of the front single plate positioned in the tape application region. A single plate moving and conveying device provided on the rear side of the end position detecting device to move and position the rear single plate forward in the longitudinal direction so as to oppose each other; and
Based on the position data of the rear end portion of the front single plate and the front end portion of the rear single plate detected by the end position detecting device, the rear end portion of the front single plate and the front end portion of the rear single plate Whether the inclination direction of the rear end portion of the front veneer and the front end portion of the rear veneer is the same from the first calculation device that calculates the inclination direction and the amount of inclination of the first calculation device, Further, the first comparison determination device for comparing and determining which of the respective inclination amounts is larger, and the rear end portion of the front single plate and the front end portion of the rear single plate based on the comparison determination of the first comparison determination device. A control unit that gives a command to stop the single-plate moving and conveying device so that the interval becomes a preset minimum butt interval,
It is characterized by having.

  In the printed wiring board single board connecting device according to the present invention, in the printed wiring board single board connecting device, the control device sets the minimum butt interval based on the comparison judgment of the first comparison judgment device. A second arithmetic unit that calculates the distance between the rearmost end of the front single plate and the frontmost end of the rear single plate so that the command unit has a distance calculated by the second arithmetic unit. It is preferable to give a command to stop the single plate moving and conveying device.

  The printed wiring board single board connecting apparatus according to the present invention is the printed wiring board single board connecting apparatus, wherein the control device calculates the rear end portion and the rear side of the front single board calculated by the first arithmetic unit. A third arithmetic unit that calculates a maximum abutting interval from each inclination direction and inclination amount of the front end portion of the veneer and the minimum abutting interval, and a maximum abutting interval calculated by the third arithmetic unit is Based on the determination of the second comparison determination device for determining whether or not the predetermined upper limit value is exceeded, and the determination of the second comparison determination device, when the maximum matching interval is equal to or greater than the predetermined value, the alarm device is warned. It is preferable to have a command unit that gives a command to sound or gives a command to stop the operation.

The printed circuit board connecting method for a printed wiring board according to the present invention includes a longitudinal front end of a plate-like front single board having a predetermined length and width, and a longitudinal front end of the next rear single board. In the single plate connection method for connecting the front single plate and the rear single plate positioned in the tape application region so that the parts face each other in close proximity to each other,
The position, inclination direction, and amount of inclination of the rear end of the front veneer on the rear side of the tape application area are detected by at least two or more end position detection devices arranged on the rear side of the tape application area. The front single plate is moved and positioned so that the rear end portion of the front single plate is positioned in the tape application region based on the position of the rear end portion of the single plate detected.
The position, inclination direction, and amount of inclination of the front end of the rear veneer on the rear side of the tape application area are detected by at least two locations by the end position detection device, and the detected rear veneer is detected. The front end of the front single plate and the front end of the rear single plate from the position, inclination direction and amount of the front end of the front, and the position, inclination direction and amount of the rear end of the front single plate The minimum butt interval that pre-sets the distance between the rear end of the front veneer and the front end of the rear veneer. The rear single plate is moved and positioned so that
A connecting tape is attached to the rear end portion of the front single plate and the front end portion of the rear single plate to connect them.

  Further, the printed wiring board single board connection method of the present invention, in the printed wiring board single board connection method, each of the inclination direction of each of the rear end portion of the front single plate and the front end portion of the rear single plate and each It is preferable that the maximum butt interval is calculated from the amount of inclination and the minimum butt interval, and when the maximum butt interval is equal to or greater than a specified value, an alarm is sounded or the operation is stopped.

In the printed wiring board roll of the present invention, the longitudinal front end of the next rear single plate is close to the longitudinal rear end of the plate-shaped front single plate having a predetermined length and width. In the printed wiring board roll wound in a roll shape by connecting the front single plate and the rear single plate to each other by attaching a connecting tape to each other,
Compare the position, inclination direction and amount of the rear end of the front veneer with the position, inclination direction and amount of the front end of the rear veneer, and the rear end of the front veneer and Position the distance between the rear end of the single plate and the front end of the rear single plate, and position the rear end of the single plate so that the distance between the front end of the rear single plate and the front end of the rear single plate It is characterized by being formed smaller than a specified value.

  In the printed wiring board roll of the present invention, it is preferable that the specified value is 2 mm in the printed wiring board roll.

  As will be understood from the means for solving the above problems, according to the printed wiring board single plate connecting apparatus of the present invention, the rear end portion and the rear single plate of the front single plate in the tape application region It is possible to make the distance from the front end portion close to an appropriate position that is always the preset minimum butting distance.

  Therefore, since the single plates can be connected to each other in a good state, the connecting tape can be connected so that no wrinkles or bulges occur even if the connected single plates are wound in a roll shape. In addition, it contributes to the quality improvement of the product because it is smoothly fed by roll-to-roll when manufacturing the printed wiring board in the post process. In addition, since the connecting tape is peeled off in a later step, the yield can be improved. In addition, it is possible to automatically and efficiently connect a plurality of single plates.

  According to the printed wiring board single board connecting method of the present invention, as explained in the printed wiring board single board connecting device, the rear end of the front single board and the front end of the rear single board in the tape application region Since the distance between the two parts can always be brought close to an appropriate position that is a preset minimum abutting distance, the single plates can be connected to each other by attaching the connecting tape in a good state. As a result, wrinkles and bulges do not occur even if these connected single plates are wound into a roll, and the product can be smoothly fed by roll-to-roll when manufacturing printed wiring boards in other subsequent processes. Contributes to quality improvement. In addition, since the connecting tape is peeled off in a later step, the yield can be improved. In addition, it is possible to automatically and efficiently connect a plurality of single plates.

  According to the printed wiring board roll of the present invention, the distance between the rear end portion of the front single plate and the front end portion of the rear single plate is positioned so as to be a preset minimum butting distance, and the front single plate The maximum abutting interval between the rear end portion and the front end portion of the rear single plate is formed to be smaller than a specified value, and the front and rear single plates are wound in a roll shape so that they are connected. Even if a plurality of single plates are wound in a roll shape, wrinkles and swelling do not occur, and they are smoothly fed by roll-to-roll when manufacturing printed wiring boards in other post-processes, contributing to improvement in product quality. In addition, since the connecting tape is peeled off in a later step, the yield can be improved.

  Embodiments of the present invention will be described below with reference to the drawings.

  The printed wiring board (printed circuit board) according to this embodiment is provided with a thin conductive film (for example, a conductive film formed of copper foil) in advance on both the front and back surfaces of a thin plate-like member, It is manufactured by processing a conductive film. The thin plate-like member (material) is, for example, a sheet-like copper-clad laminate (usually referred to as “CCL”) having flexibility, and a conductive film is in close contact with both sides of a polyimide base film. Is formed.

  Here, a method for manufacturing the printed wiring board will be schematically described.

  Referring to FIG. 2, first, a long sheet-like CCL having a predetermined width is cut into a predetermined length by a cutting line extending in the width direction to form a single plate. The predetermined width of the CCL is usually 250 to 500 mm (step S1).

  After the plurality of single plates (about 20) are overlaid so that their end faces coincide with each other, through holes are formed in the plurality of single plates almost simultaneously using a punch or a drill. This through hole is for through hole plating in the next step. Thus, the working efficiency is improved by punching a plurality of single plates together (step S2).

  Next, each single plate having the through-holes is subjected to through-hole plating (step S3).

  Next, a single plate connecting step of connecting the single plates subjected to the through-hole plating to each other is performed. That is, the ends of the single plates are arranged close to each other (in contact with or slightly apart from each other) so as not to overlap each other in the thickness direction. The end portions of the adjacent single plates are pasted with a connecting tape having a predetermined width so as to cover the adjacent end surface portions from one surface in the thickness direction of the single plates. Then, they are connected to each other and formed long, and are wound, for example, on a reel (bobbin) in a roll shape (step S4).

  Next, a circuit forming process for forming circuits on both surfaces of each single plate is performed. Each single plate formed long and wound in a roll shape as described above is fed into the processing apparatus while being fed out from the roll, and the printed wiring board after being processed into each single plate is taken up by another roll. A roll-to-roll (RR) system is adopted. At this time, when the roll-shaped single plate is sent to another roll, thin circuits are formed on both surfaces of each single plate. That is, a printed circuit is formed through processes such as surface conditioning, dry film lamination, exposure, development, etching, and circuit polishing that clean the surface of the conductive film of each single plate.

  More specifically, first, a surface-conditioning process for removing an oil film and fine dust is performed by removing the oxide film on the surface of the thin conductive film provided on both surfaces (front and back surfaces) of the single plate. .

  A dry film is attached to the surface of the surface-treated conductive film, and exposure is performed in a state where pattern substrates for forming circuits on both surfaces of the single plate are installed on the dry film.

  The pattern substrate is removed and development processing is performed, and the circuit configuration of the pattern substrate is transferred to the dry film.

  Subsequently, a part of the conductive film is removed by etching, and circuits having the same form as the circuit of the pattern substrate are formed on both surfaces of the single plate. Thereafter, the dry film remaining on both surfaces of the single plate is removed.

  As described above, since a plurality of single plates are overlapped with each other to form a through hole, a through hole for through-hole plating can be efficiently formed. Furthermore, after connecting each single plate with through-hole plating and winding it into a roll, when each roll-shaped single plate is fed out and sent to another roll, it is attached to both sides of each single plate. Since the circuit is formed, the circuit can be efficiently formed almost continuously (step S5).

  Subsequently, each connected single board is separated (step S6), and after this separation, a thin coverlay is attached to both surfaces of each single board (step S7), and a printed wiring board is manufactured.

  As described above, the manufactured printed wiring board has circuits on both sides and has through holes for electrically connecting the circuits on both sides to each other. More efficiently.

  In addition, according to the printed wiring board manufacturing method described above, since the connecting tape is used to connect the single boards, the influence on the single boards is reduced (for example, the single board is damaged at the connection site). In other words, the single plates can be connected quickly and easily, and the connected single plates can be easily separated.

  Referring to FIGS. 3A to 3C, the single plate 1 formed in the above steps S1, S2 and S3 has four corners of the single plate 1 as shown in FIG. Used in the single plate connecting device, the alignment holes 1E for the four exposure machines provided in the above, the sheet feeding holes 1S of the two exposure machines provided on both sides at the center in the longitudinal direction of the single plate 1. Two positioning reference holes 1H are formed.

  Further, as shown in FIG. 3A, when the single plate 1 is cut into a predetermined length in the above step S1, the cut end face is not necessarily cut accurately at a right angle. In fact, the positioning accuracy of the two positioning reference holes 1H of the single plate 1 from the cut end surface is not always accurate.

  As shown in FIGS. 3B and 3C, the single plates 1 are abutted before and after the butt reference line TCL in the conveyance direction of the single plate 1.

  When the front end 1BF of the next rear single plate 1B is abutted and connected to the rear end 1AR of the single plate 1A arranged on the front side of the butt reference line TCL, the next rear single plate 1B A positioning pin SP for engaging the reference hole 1H of the next rear single plate 1B is fixedly provided on the single plate connecting device used at a fixed distance L from the butt reference line TCL. In this case, the variation in the cutting end surface accuracy and the positional accuracy variation in the positioning reference hole 1H are the variation in the interval between the butted portions of the single plates 1A and 1B, and the single plates 1A and 1B before and after being connected. This is an element that increases the unevenness of the unevenness at the side edges in the width direction, and this causes an abnormality in the shape of the butted portion between the single plates 1A and 1B.

  For example, as shown in FIG. 3B, the “spread” of the interval between the butted portions in the longitudinal direction of the single plates 1A and 1B, or the single plates 1A and 1B as shown in FIG. "Overlap" in the thickness direction of the sheet, "unevenness of the side end" due to unevenness of the side ends of the single plates 1A and 1B, and the like occur. The abnormal shapes of these butted portions cause various problems in each step of the next process, as described in the conventional description.

  However, according to this embodiment, the variation of the cutting end surface accuracy and the positional accuracy of the positioning reference hole 1H are hardly affected by the rear end portion 1AR of the front single plate 1A. The distance from the front end 1BF of the rear single plate 1B can be brought close to an appropriate minimum distance.

  Next, a single plate connecting device 3 according to an embodiment of the present invention will be described with reference to the drawings. This single plate connecting device 3 is used in the single plate connecting step of step S4 described above.

  Referring to FIG. 4, the veneer connecting device 3 is a thin veneer 1 having a predetermined width and a predetermined length and having a rectangular shape and having flexibility (for example, a printed wiring board). It is a device for connecting materials.

  As shown in FIG. 4, the base plate (not shown) of the single plate connecting device 3 has a longitudinal front end 1AR of the front single plate 1A and a longitudinal front end of the next rear single plate 1B. A tape application region 7 for positioning the next rear veneer 1B and attaching the connecting tape 5 is provided so that the part 1BF is closely opposed. Incidentally, in this embodiment, the width of the connecting tape 5 is, for example, 10 to 12 mm.

  A tape applicator 9 is provided to connect the front single plate 1A and the next rear single plate 1B positioned in the tape application region 7 to each other.

  More specifically, the tape applicator 9 extends the connecting tape 5 having a predetermined width in the abutting direction of the end portions 1AR and 1BF of the adjacent single plates 1A and 1B. The single plates 1A and 1B are attached so as to cover the end portions 1AR and 1BF of the single plates 1A and 1B adjacent to each other from one surface in the thickness direction (the upper surface in this embodiment). 1A and 1B are connected.

  A table 11 for positioning the rear end 1AR of the front veneer 1A and the front end 1BF of the next rear veneer 1B is provided in the tape affixing area 7. Above 11, a frame 13, which is a main body portion of the tape applicator 9 separated from the table 11, is provided so as to be movable up and down.

  Inside the frame 13, a connecting tape 5 is wound and stored on a reel, and the connecting tape 5 is arranged so as to be fed out in a direction substantially coinciding with the butted portions of the single plates 1A and 1B. Has been. Further, the front end side of the connecting tape 5 fed out from the reel is guided to the lower surface side of the frame 13 by a plurality of rollers. In order to prevent the connecting tape 5 from returning to the reel side, the plurality of rollers are provided with tape reverse running prevention means such as a one-way clutch.

  Further, the frame 13 is provided with a tape pull-out means for pulling out the connection tape 5 from the reel by a predetermined length. The front end of the connecting tape 5 pulled out by the tape pulling means is configured to protrude obliquely downward from the lower surface of the frame 13, and a pressing roller for pressing the front end side of the connecting tape 5 against the table 11 from above. Is provided. Note that an adhesive layer is provided on the lower surface side of the drawn connection tape 5.

  The frame 13 is provided with a tape cutting part made of a cutter or the like for cutting the connection tape 5.

  Further, on the front side in the transport direction (right side in FIGS. 4 and 5) with respect to the tape application region 7, the single plate is fixed to move the front single plate 1A to the front side in the transport direction. A transport device 15 is fixedly provided.

  The single plate fixing and conveying device 15 is configured to move the single plate 1A in one longitudinal direction (vacuum conveyance direction shown in FIGS. 4 and 5) while vacuum-sucking one surface in the thickness direction of the front single plate 1A. ) To convey the front single plate 1A and the next rear single plate 1B connected to the front single plate 1A.

  The above-described single plate fixing and conveying device 15 will be described in detail. The single plate fixed and conveying device 15 is constituted by a belt conveyor 17 in this embodiment, and the belt 19 that rotates endlessly in the belt conveyor 17 has a single plate 1. A plurality of through holes 21 arranged in the transport direction are provided in a plurality of rows. Further, a flat guide member 23 is provided on the inner side of the belt 19 traveling on the upper side. The guide member 23 is provided with a plurality of rows of a plurality of grooves (not shown) formed to extend in the transport direction at positions corresponding to the through holes 21 of the belt 19.

  The groove-formed surface of the guide member 23 is close to or in contact with the inner surface of the belt 19, and the surface of the belt 19 opposite to the guide member 23 is the groove of the guide member 23 and the belt 19. The front single plate 1 </ b> A on the upper surface of the belt 19 can be vacuum-sucked through each through hole 21.

  The single plate fixed conveying device 15 is configured such that the belt 19 can be rotationally driven by a driving device such as a servo motor and stopped at an accurate position, and the driving device is connected to the control device 25 (see FIG. 6). It is connected.

  Instead of the belt conveyor 17 and the guide member 23, the front veneer 1A may be gripped and conveyed. For example, a first grip member that extends long in the width direction of the front single plate 1A is disposed on the back side of the front single plate 1A, and the second member extends long in the width direction of the front single plate 1A. The grip member is disposed on the front side of the front veneer 1A, and the front veneer 1A is sandwiched between the first and second grip members using an actuator such as a pneumatic cylinder. Thus, the front single plate 1A may be transported by moving the grip members in the transport direction using an actuator such as a pneumatic cylinder. Alternatively, it may be a single plate fixed conveyance device having another structure.

  Further, after being connected by the tape applicator 9 on the front side (right side in FIGS. 4 and 5) in the transport direction with respect to the single plate fixed transport device 15, the transport is performed by the single plate fixed transport device 15. A single plate take-up device 29 is provided for winding a plurality of connected single plates 1 on a reel 27 (bobbin). The reel 27 is provided so as to be rotatable with respect to the base (not shown), and is driven to rotate to wind up the plurality of connected single plates 1 by an actuator (not shown) such as an electric motor. is there.

  Further, on the rear side (left side in FIGS. 4 and 5) in the transport direction with respect to the tape application region 7, the position of the rear end portion 1AR of the front veneer 1A or the next rear side For example, an end position sensor 31 is provided as an end position detection device for detecting the position of the front end 1BF of the single plate 1B.

  As shown in FIG. 4, the end position sensor 31 (see FIG. 6) has two locations in the width direction at the front end 1AR of the front veneer 1A and the front end 1BF of the rear veneer 1B. The first sensor 31A and the second sensor 31B are detected.

  In this embodiment, the first and second sensors 31A and 31B are arranged above the positions near the positions where both side ends of the single plates 1A and 1B pass in the width direction orthogonal to the transport direction. Each of them is composed of a reflected light type optical sensor that integrally incorporates a light projecting unit and a light receiving unit. However, the present invention is not limited to this reflected light type optical sensor, and other types of sensors may be used.

  The first and second sensors 31A and 31B of the end position sensor 31 are the position of the rear end 1AR of the front single plate 1A or the position of the front end 1BF of the next rear single plate 1B. Is connected to the control device 25 shown in FIG. Details of the control device 25 will be described later.

  In this embodiment, the end position sensors 31 are provided at two locations in the vicinity of the positions where the both ends pass in the width direction of the single plates 1A and 1B, but the rear ends of the single plates 1A and 1B. It is possible to detect at least two arbitrary positions of the part 1AR or the front end part 1BF.

  Further, on the rear side (left side in FIGS. 4 and 5) in the transport direction with respect to the tape application region 7 and the first and second sensors 31A and 31B of the end position sensor 31, the next rear side A single plate provided with a flat portion on which the single plate 1B can be placed (a portion disposed on substantially the same plane as the table 11 of the tape application region 7 and the belt 19 of the single plate fixing and conveying device 15). For example, a movable table 33 as a moving conveyance device is provided so as to reciprocate so as to approach and separate from the table 11 in the tape application region 7 in the conveyance direction.

  The movable table 33 is moved back and forth in the transport direction of the movable table 33 (or moving distance) by a table driving device (not shown) composed of, for example, a ball screw and a nut member, and a servo motor that rotationally drives the ball screw. ) Is configured to operate accurately. Further, the table driving device is connected to the control device 25.

  Further, on the upper surface of the movable table 33, for example, a projection 35 as a single plate positioning member that is inserted into and engaged with a positioning reference hole 1H provided in the single plate 1 positions the single plate 1. For this purpose, the movable table 33 is provided so as to be able to protrude upward and downward from the upper surface. The reference hole 1H is provided in the single plate 1 for positioning on the upper surface of the movable table 33. For example, the single plates 1 are overlapped with each other in order to make a through hole for the through hole plating. It was opened at the time.

  A plurality of small through holes 37 are provided on the upper surface of the movable table 33, and the rear single plate 1B is vacuum-sucked on the upper surface of the movable table 33 through these through holes 37, or The rear single plate 1B can be air floated.

  When the next rear single plate 1B is positioned on the upper surface of the movable table 33, the projection 35 is projected to engage the reference hole 1H of the next rear single plate 1B. Combine. Further, when connecting the single plates 1A and 1B to each other by the tape applying device 9, the next rear single plate 1B is vacuum-sucked by the movable table 33, and the front plate fixed conveying device 15 is used for the front side. The single plate 1A is configured to be vacuum-adsorbed.

  Further, when the rear single plate 1B connected with the front single plate 1A is transported by the single plate fixed transport device 15 after the single plates 1A and 1B are connected, the protrusion 35 is formed on the upper surface of the movable table 33. It is configured so as to be immersed further downward and air floated on the upper surface of the movable table 33.

  Referring to FIG. 6, the control device 25 will be described in detail. The CPU 39 of the control device 25 has an input device 41 and a display device 43 for inputting various data and programs, and the input data and end position sensor 31. A memory 45 for storing data detected by the first and second sensors 31A, 31B, and a rear end 1AR of the front veneer 1A and a front end of the rear veneer 1B based on the data in the memory 45 A first arithmetic unit 47 that calculates the tilt direction and the tilt amount of the unit 1BF is connected.

  Further, the CPU 39 transfers and fixes the single plate so that the rear end of the rear end 1AR of the front single plate 1A stops at a predetermined position in the tape application region 7 based on the calculated value of the first arithmetic unit 47. A first command unit 49 that gives commands to the device 15 is connected.

Further, the CPU 39 determines the front single unit from the inclination direction and the inclination amount of the front end 1BF of the front single plate 1A and the front end 1BF of the rear single plate 1B obtained by the first arithmetic unit 47. A first comparison judgment is made by comparing whether or not the inclination directions of the rear end portion 1AR of the plate 1A and the front end portion 1BF of the rear single plate 1B are the same, and which one of the inclination amounts is larger, and determining each combination state. Based on the determination of the device 51 and the first comparison determination device 51, the interval between the rear end 1AR of the front veneer 1A and the front end 1BF of the rear veneer 1B is set in advance according to the respective combinations. The distance L (interval) between the rear end of the rear end 1AR of the front veneer 1A and the front end 1BF of the rear veneer 1B so as to be the minimum butting distance G ₀ (minimum value of the interval). ) Is calculated by the second arithmetic unit 53 and the second arithmetic unit 53. The second command section 55 issues instructions that allowed to stop the movable table 33 so as to release L to the movable table 33 is connected.

The relationship between the distance L and the minimum butt gap G ₀ and the most front end of the front end 1BF veneer 1B of the last end and the rear of the rear end portion 1AR of the front veneer. 1A, FIG. 1 (C) As shown in The distance L is a numerical value that determines the stop position of the next single plate 1B.

Further, the CPU 39 includes the tilt direction and the tilt amount of the rear end 1AR of the front single plate 1A obtained based on the calculated values of the first arithmetic unit 47, and the front end 1BF of the rear single plate 1B. and a tilt direction and tilt amount of the third arithmetic unit 57 which veneer 1A, 1B calculates the maximum butt gap G _Max when butted with minimal butt gap G _0, in the third arithmetic unit 57 a second comparison determination unit 59 calculated maximum butt gap G _Max compares determines whether or prescribed value G _S is the upper limit that has been set in advance, based on the determination of the second comparison determination unit 59, maximum impact or combined spacing G _Max is when the above prescribed value G _S gives a command to sound the alarm to the alarm device 61, or the third instruction unit 63 issues instructions to stop the operation of the veneer connecting device 3 is connected Yes.

  In this embodiment, the first arithmetic device 47, the second arithmetic device 53, and the third arithmetic device 57 constitute an arithmetic device as a whole, and the first comparison determination device 51 and the second arithmetic device 57 are the same. The comparison determination device 59 constitutes a comparison operation device as a whole, and the first command portion 49, the second command portion 55, and the third command portion 63 constitute a command portion as a whole.

  With the above configuration, in the single plate connecting step, when the front single plate 1A is conveyed forward in the conveyance direction by the belt 19 of the single plate fixed conveyance device 15, the two-dot chain line in FIG. 4 and FIG. As shown in the drawing, the position of the rear end 1AR in the longitudinal direction of the front veneer 1A is detected by the first and second sensors 31A, 31B of the end position sensor 31, and the detected data is the control device 25. Sent to.

  In the control device 25, as shown in step S11 of FIG. 1A, the first arithmetic unit 47 makes the front single plate 1A based on the detection data of the position of the rear end 1AR of the front single plate 1A. The inclination shape of the rear end portion 1AR, that is, the inclination direction and the inclination amount are calculated.

For example, as shown in FIG. 1 (B), the tilt direction can be determined by detecting whether one of the first and second sensors 31A and 31B is detected earlier or later. The tilt amount Df is the product of the detection time difference Tf by the first and second sensors 31A and 31B and the transport speed V of the front single plate 1A, that is, Df = Tf × V. (1)
Calculated by

  The tilt direction is also calculated from the above equation (1). For example, in the case of FIG. 1B, the detection time difference Tf is − (minus) because the first sensor 31A is detected earlier. Therefore, since the amount of inclination Df is also minus (minus), the inclination direction at this time is inclined obliquely downward to the right from the left end side in FIG.

  Next, in the first command section 49 of the control device 25, the rear end of the rear end portion 1AR of the front veneer 1A is stopped at a predetermined position in the tape application area 7 based on the calculated value of the first arithmetic unit 47. Thus, the front single plate 1A is conveyed forward in the conveyance direction as indicated by the arrows in FIGS. 4 and 7A, and the front single plate 1A is given a command. The rearmost end 1AR of the veneer 1A stops at a predetermined position in the tape application region 7.

  Then, the front single plate 1A is vacuum-sucked on the upper surface of the belt 19 of the single plate fixed conveyance device 15. When the belt 19 is rotationally driven, the single plate winding device 29 is also rotationally driven in synchronism, and the plurality of connected single plates 1 are wound on the reel 27 on the front side.

  Next, the next rear single plate 1B indicated by a two-dot chain line in FIG. 7A protrudes from the upper surface of the movable table 33 into a positioning reference hole 1H provided in the rear single plate 1B. By inserting the projection 35, the positioning is performed on the upper surface of the movable table 33 as shown in FIGS. 4 and 7B. The next rear single plate 1 </ b> B is vacuum-sucked on the upper surface of the movable table 33.

  Thereafter, when the operator turns on a switch for operating the movable table 33, the movable table 33 is transported to the next rear single plate 1 </ b> B as indicated by arrows in FIGS. 4 and 7B. The position of the front end 1BF in the longitudinal direction of the next rear single plate 1B is detected by the first and second sensors 31A and 31B of the end position sensor 31, and the detected data Is sent to the control device 25.

  In the control device 25, as shown in step S12 of FIG. 1 (A), the first arithmetic unit 47 makes the rear single plate based on the detection data of the position of the front end 1BF of the rear single plate 1B. The tilt shape of the front end portion 1BF of 1B, that is, the tilt direction and the tilt amount are calculated.

For example, as shown in FIG. 1 (B), the tilt direction can be determined by detecting whether one of the first and second sensors 31A and 31B is detected earlier or later. The tilt amount Dn is the product of the detection time difference Tn by the first and second sensors 31A and 31B and the conveyance speed V of the rear single plate 1B, that is, Dn = Tn × V. (2)
Calculated by

  The tilt direction is also calculated from the above equation (2). For example, in the case of FIG. 1B, the detection time difference Tn is + (plus) because the second sensor 31B is detected earlier. Therefore, since the inclination amount Dn is also + (plus), the inclination direction at this time is inclined obliquely upward to the right from the left end side in FIG.

  Next, in the first comparison / judgment device 51 of the control device 25, as shown in step S13 of FIG. 1 (A), the rear end of the front veneer 1A based on the calculated value of the first arithmetic device 47 described above. Whether or not the inclination direction is the same is determined from the inclination direction of the portion 1AR and the inclination direction of the front end portion 1BF of the rear single plate 1B.

  For example, in step S13 of FIG. 1A, the product (Df × Dn) of the inclination amount Df of the rear end 1AR of the front veneer 1A and the inclination Dn of the front end 1BF of the rear veneer 1B is −. In the case of (minus), the inclination direction of the rear end 1AR of the front veneer 1A and the inclination direction of the front end 1BF of the rear veneer 1B are shown in step S14 of FIG. It is judged that they are different from each other.

In this case, in the second arithmetic unit 53, the distance L between the rear end of the rear end 1AR of the front veneer 1A and the front end of the front end 1BF of the rear veneer 1B is the minimum butting distance G _0. It becomes.

That is, L = −G ₀ (3)
It becomes.

Therefore, since the second command unit 55 gives a command to stop the movable table 33 based on the calculation of the expression (3) of the second arithmetic unit 53, the movable table 33 is set in step S14 in FIG. Further, as shown in FIG. 7C, a distance L (interval) between the rear end of the rear end 1AR of the front veneer 1A and the front end of the front end 1BF of the rear veneer 1B is -G. Stop at the position of _zero .

  On the other hand, when (Df × Dn) is + (plus) in step S13 in FIG. 1A, the inclination direction of the rear end 1AR of the front veneer 1A and the front end of the rear veneer 1B are shown. It is determined that the inclination directions of 1BF are the same.

  In this case, the first comparison / judgment device 51 compares the tilt amounts as shown in step S15 of FIG. That is, it is determined whether or not | Df |> | Dn |.

If | Df |> | Dn |, the second arithmetic unit 53 causes the rear end and the rear end of the rear end portion 1AR of the front veneer 1A as shown in step S16 of FIG. the distance L between the forwardmost of the front end portion 1BF of veneer. 1B, | difference between the minimum butt gap _{G 0,} | Dn
That is, L = −G ₀ + | Dn | (4)
It becomes.

Therefore, since the second command unit 55 gives a command to stop the movable table 33 based on the calculation of the expression (4) of the second arithmetic unit 53, the movable table 33 is set in step S16 of FIG. In addition, as shown in FIG. 7C, the operation stops at a position where the distance L is −G ₀ + | Dn |.

If | Df | <| Dn |, the second arithmetic unit 53 uses the rear end 1AR of the rear end 1AR of the front veneer 1A as shown in step S17 of FIG. the distance L between the forwardmost of the front end portion 1BF veneer 1B after side, | difference between the minimum butt gap G _0, | Df
That is, L = −G ₀ + | Df | (5)
It becomes.

Therefore, since the second command unit 55 gives a command to stop the movable table 33 based on the calculation of the expression (5) of the second arithmetic unit 53, the movable table 33 is set in step S17 of FIG. In addition, as shown in FIG. 7C, the operation stops at a position where the distance L is −G ₀ + | Df |.

As described above, the inclination direction and the amount of inclination of the rear end 1AR of the front veneer 1A and the inclination direction and the amount of inclination of the front end 1BF of the rear veneer 1B are not limited. It is positioned such that the minimum value of the minimum butt gap G ₀ the distance between the front end 1BF veneer 1B of the rear end portion 1AR and the rear of the front veneer 1A is set in advance according to respective combinations It will be.

  Incidentally, the butt pattern between the single plates 1 can include about 6 patterns. (1) As shown in FIG. 8A, when both the front single plate 1A in the transport direction and the next rear single plate 1B are acute at the left end in the transport direction, 2) As shown in FIG. 8B, the front single plate 1A has an acute angle at the left end in the transport direction, and the rear single plate 1B has an obtuse angle at the left end in the transport direction. When the right end of the single plate 1B in the transport direction is located behind the butting reference line TCL, (3) as shown in FIG. 8C, the front single plate 1A is in the transport direction. When the left single plate 1B has an acute angle, the rear single plate 1B is obtuse at the left end in the transport direction, and the right single end of the rear single plate 1B in the transport direction is positioned ahead of the butt reference line TCL. .

  Further, the following three patterns are symmetric with the above three patterns. (4) When the front single plate 1A and the rear single plate 1B in the transport direction are both obtuse at the left end in the transport direction, as shown in FIG. 8D, (5) FIG. As shown in (E), the front single plate 1A has an obtuse angle at the left end in the transport direction, and the rear single plate 1B has an acute angle at the left end in the transport direction, and the rear single plate 1B. (6) As shown in FIG. 8 (F), the front single plate 1A is obtuse at the left end in the transport direction. And the rear single plate 1B has an acute angle at the left end in the transport direction, and the left end in the transport direction of the rear single plate 1B is positioned in front of the butt reference line TCL.

According to the single plate connecting device 3 of this embodiment, it can sufficiently cope with the above-described six types of single plate 1 butt pattern, and the alignment point is changed by the difference between the obtuse angle and the acute angle as described above. Thus, the situation where the rear end 1AR of the front veneer 1A and the front end 1BF of the rear veneer 1B overlap can be avoided, and the interval between the veneer 1A and the veneer 1B is set to the minimum butting distance G _0. Can always be positioned.

Further, in the control device 25, the third arithmetic device 57 calculates the inclination direction and the inclination amount of the rear end portion 1AR of the front veneer 1A obtained based on the calculated value of the first arithmetic device 47, and the rear side. and a tilt direction and tilt amount of the front end portion 1BF veneer 1B, veneer 1A, 1B is the maximum butt gap G _Max when butted with minimal butt gap G ₀ is calculated by the following formula (6) .

That is, G _Max = G ₀ + | Df−Dn | (6)
It becomes.

For example, in the case of step 14 in FIG. 1A, since Df> 0 and Dn <0, | Df−Dn | in equation (6) has the same value as | Df | + | Dn |. Therefore, in the drawing of step 14, the maximum butting distance G _Max on the right end side of the single plates 1A and 1B is expressed by equation (6).

In both cases of step 16 and step 17 in FIG. 1A, since Df <0 and Dn <0, | Df−Dn | in equation (6) is the difference between | Df | and | Dn | It becomes the same value as the absolute value. Therefore, the maximum butting distance G _Max on the left end side of the single plates 1A and 1B in the drawing of step 16 is expressed by the following equation (6). On the other hand, the maximum butting distance G _Max on the right end side of the single plates 1A and 1B in the drawing of step 17 is expressed by the following equation (6).

As described above, regardless of the inclination direction and inclination amount of the rear end 1AR of the front veneer 1A and the inclination direction and inclination amount of the front end 1BF of the rear veneer 1B, depending on the combination, veneer 1A, 1B is the maximum butt gap G _Max when butted with minimal butt gap G ₀ is calculated by equation (6) described above.

Then, in the second comparative decision apparatus 59, is compared is determined whether the third arithmetic unit maximum butt gap G _Max calculated in 57 upper limit of a preset prescribed value G _S more. That is, the quality of the butting interval between the single plates 1A and 1B is determined.

In the third instruction unit 63, based on the determination of the second comparison determination unit 59 described above, the maximum butt gap G _Max is when the above prescribed value G _S gives a command to sound the alarm to the alarm device 61, The operator can stop the operation of the single plate connecting device 3 by the alarm of the alarm device 61, remove the rear single plate 1B, and place the other single plate 1 on the movable table 33.

Alternatively the third command unit 63, when giving the command for maximum butt gap G _Max stops the operation of the veneer connected device 3 when the specified value or more G _S, the operator receives this as above The single plate 1B on the rear side can be removed, and the other single plate 1 can be installed on the movable table 33. In the third command section 63, it is desirable to sound an alarm to the alarm device 61 and stop the operation of the single plate connecting device 3.

Thus, if you set the specified value G _S to 2mm, can be veneer 1A, it is butt spacing 1B obtain products reliably be 2mm or less.

  Next, when the frame 13 of the tape applicator 9 is lowered, the front end side of the connection tape 5 previously drawn out from the reel inside the frame 13 is drawn out to the lower surface side of the frame 13, so that the front end side of the connection tape 5 is The pressing rollers are pressed from the top to the left end side in FIG. 5 of the end portions 1AR and 1BF of the single plates 1A and 1B on the table 11 to be pasted. Then, the frame 13 of the tape applicator 9 is moved to the right in FIG. 5 so that the connecting tape 5 is pressed by the pressing roller while being pulled out of the reel. Therefore, the connecting tape 5 is attached to each of the single plates 1A and 1B. The single plates 1A and 1B are connected to each other so as to cover the end portions 1AR and 1BF. Thereafter, the connecting tape 5 is cut by the tape cutting portion on the right end side in FIG. The frame 13 returns to the original position.

  In response to a command from the control device 25, the projection 35 is immersed below the upper surface of the movable table 33, and air is blown out from a plurality of small through holes 37 on the upper surface of the movable table 33 so that the single plate 1B is air floated. Can be switched. On the other hand, since the belt 19 of the single plate fixed transport device 15 is driven again and the front single plate 1A is transported forward in the transport direction, both of the rear single plates 1B connected to the front single plate 1A are also included. It is conveyed forward. At the same time, the movable table 33 retreats and returns to the original position, and air blowing from the plurality of small through holes 37 stops, and the projection 35 protrudes above the upper surface of the movable table 33.

  When the front single plate 1A and the rear single plate 1B are transported forward in the transport direction, as described above, the position of the rear end 1BR of the rear single plate 1B is an end portion. Based on the detected data, the rear end portion 1BR of the veneer 1B stops at a predetermined position in the tape application region 7 based on the detected data, as shown in FIGS. 4 and 7A. It will be in the initial state.

  By repeating the above operation, a plurality of single plates 1 are long connected with the connecting tape 5 to produce a printed wiring board roll.

From the above, according to the single plate connecting device 3 of this embodiment, the distance between the rear end portion 1AR of the front single plate 1A and the front end portion 1BF of the rear single plate 1B in the tape application region 7 is always set. it can be brought close to the minimum value to become a proper position of the minimum butt gap G ₀ which is set in advance. In other words, the interval between the butted portions of the single plates 1A and 1B can be controlled to a position that is as narrow as possible (closer) and never overlaps in the thickness direction of the single plate 1.

In addition, the inclination direction and the inclination amount of the rear end 1AR of the front veneer 1A and the inclination direction and the inclination amount of the front end 1BF of the rear veneer 1B are not limited to the respective combinations. Correspondingly, veneer 1A, 1B are calculated maximum butt gap G _Max when butted with minimal butt gap G _0, or the maximum butt gap G _Max is the upper limit of the specified value G _S than the preset comparing determines whether, when the maximum butt gap G _Max is equal to or higher than the predetermined value G _S or sound an alarm to the alarm device 61, so to stop the operation of the veneer connecting device 3, a veneer 1B of the rear The other single plate 1 can be removed and placed on the movable table 33. Thus, veneer 1A, 1B can be made smaller than the specified value G _S of reliably limit the butt interval. For example, by setting the specified value G _S to 2 mm, can be veneer 1A, is butt spacing 1B obtain a product consisting reliably smaller than 2 mm.

  Moreover, the printed wiring board roll manufactured as mentioned above also has the same effect.

  That is, since the single tapes 1 can be connected to each other in a good state, the connecting tape 5 can be connected so that even if the connected single plates 1 are wound into a roll, wrinkles and swelling do not occur. Since the peeling operation of the connecting tape 5 becomes good, the yield can be improved.

  In addition, since each of the above operations is automatically performed, it is possible to efficiently perform the connecting work of the plurality of single plates 1.

  As described above, according to the single plate connecting device 3 of this embodiment, the front side is not affected by the variation of the cut end surface accuracy and the position accuracy of the positioning reference hole 1H. Since the interval between the rear end 1AR of the veneer 1A and the front end 1BF of the rear veneer 1B can be brought close to an appropriate position, the above-mentioned “spread”, “overlap” and “side end” Abnormalities such as "unevenness" can be avoided. As a result, it contributes to quality improvement at the time of manufacturing the printed wiring board in the subsequent process.

  Conventionally, the variation in the interval between the butted portions of the single plates 1 has a distribution of, for example, 2 mm or more. However, according to the single plate connection device of this embodiment, a favorable result of, for example, 0.4 mm or less is obtained. I was able to.

(A) is a flowchart of the operation of the single plate connecting apparatus according to the embodiment of the present invention, and (B) is a plane in a state where the front single plate and the rear single plate are detected by the first and second sensors. in Figure is a plan view for explaining the distance L between the foremost end of (C) the minimum butt gap G _0, veneers rearmost end and the rear of the front veneer. It is a flowchart figure which shows manufacture of a printed wiring board. (A) is a top view of a single board, (B), (C) is a top view of the state which faced each other. 1 is a perspective view schematically showing a single plate connecting apparatus according to an embodiment of the present invention. It is a perspective view explaining the operation | movement of FIG. It is a block diagram of a control apparatus. (A)-(C) are the top views which show roughly the single plate connection apparatus of FIG. 4 by planar operation | movement. (A)-(F) are top views which show the 6 types of butting patterns of the state which faced each single plate.

Explanation of symbols

1, 1A, 1B Single plate 1E Alignment hole 1H for exposure machine Reference hole 1S for positioning 3S Sheet feeding hole 3 for exposure machine Single plate connection device 5 Tape for connection 7 Tape application area 9 Tape application device 11 Table 15 Single plate Fixed conveying device 17 Belt conveyor 25 Control device 27 Reel 29 Single plate winding device 31 End position sensor 31A First sensor 31B Second sensor 33 Movable table (single plate moving and conveying device)
35 projection 47 first arithmetic unit 49 first command unit 51 first comparison / judgment device 53 second computation unit 55 second command unit 57 third computation unit 59 second comparison / judgment device 61 alarm unit 63 third command unit TCL Baseline

Claims (7)

In a single board connection device for printed wiring boards that connect plate-like single boards with a predetermined length and width,
Positioned in the tape affixing region so that the longitudinal front end of the next single veneer is closely opposed to the longitudinal rear end of the front single veneer among the connected single plates. In addition, in order to connect the front single plate and the rear single plate to each other, a tape applying device for attaching a connecting tape to the rear end portion of the front single plate and the front end portion of the rear single plate When,
An end position detection device that is provided on the rear side of the tape affixing region and detects a position of a rear end portion of the front single plate and a front end portion of the rear single plate in at least two places;
Based on the position of the rear end portion of the front single plate detected by the end position detection device, the front single plate is positioned in the tape application region so that the rear end portion of the front single plate is positioned in the tape application region. A single plate fixed conveying device provided to be fixed to the front side of the tape affixing region to be conveyed forward in the longitudinal direction;
Based on the position of the front end portion of the rear single plate detected by the end position detection device, the front end portion of the rear single plate is positioned at the rear end portion of the front single plate positioned in the tape application region. A single plate moving and conveying device provided on the rear side of the end position detecting device to move and position the rear single plate forward in the longitudinal direction so as to oppose each other; and
Based on the position data of the rear end portion of the front single plate and the front end portion of the rear single plate detected by the end position detecting device, the rear end portion of the front single plate and the front end portion of the rear single plate Whether the inclination direction of the rear end portion of the front veneer and the front end portion of the rear veneer is the same from the first calculation device that calculates the inclination direction and the amount of inclination of the first calculation device, Further, the first comparison determination device for comparing and determining which of the respective inclination amounts is larger, and the rear end portion of the front single plate and the front end portion of the rear single plate based on the comparison determination of the first comparison determination device. A control unit that gives a command to stop the single plate moving conveyance device so that the interval becomes a preset minimum butt interval,
A single circuit board connecting device for a printed wiring board, comprising:   A second calculation in which the control device calculates a distance between the rearmost end of the front single plate and the frontmost end of the rear single plate so as to be the minimum abutting interval based on the comparison determination of the first comparison determination device. 2. The printed wiring board according to claim 1, wherein the printed circuit board includes a device, and gives a command to stop the single plate moving and conveying device so that the command unit has a distance calculated by the second arithmetic device. Single plate connection device.   The control device calculates the maximum butt from the inclination direction and the amount of inclination of the rear end portion of the front single plate and the front end portion of the rear single plate calculated by the first arithmetic unit and the minimum butt interval. A third arithmetic unit for calculating the interval, a second comparison / determination unit for comparing and determining whether or not the maximum butt interval calculated by the third arithmetic unit is equal to or greater than a preset upper limit value, and the second comparison A command unit for giving a command to sound an alarm to the alarm device or giving a command to stop the operation when the maximum butt interval is equal to or greater than a predetermined value based on the judgment of the judgment device; 3. A single circuit board connection device for printed wiring boards according to claim 1 or 2. In the tape application area, the longitudinal front end of the next single plate on the front side close to and faces the longitudinal rear end of the plate-like front single plate having a predetermined length and width. In the single plate connection method for connecting the positioned front single plate and the rear single plate to each other,
The position, inclination direction, and amount of inclination of the rear end of the front veneer on the rear side of the tape application area are detected by at least two or more end position detection devices arranged on the rear side of the tape application area. The front single plate is moved and positioned so that the rear end portion of the front single plate is positioned in the tape application region based on the position of the rear end portion of the single plate detected.
The position, inclination direction, and amount of inclination of the front end of the rear veneer on the rear side of the tape application area are detected by at least two locations by the end position detection device, and the detected rear veneer is detected. The front end of the front single plate and the front end of the rear single plate from the position, inclination direction and amount of the front end of the front, and the position, inclination direction and amount of the rear end of the front single plate The minimum butt interval that pre-sets the distance between the rear end of the front veneer and the front end of the rear veneer. The rear single plate is moved and positioned so that
A method for connecting single boards of a printed wiring board, comprising: connecting a connecting tape to a rear end portion of the front single plate and a front end portion of the rear single plate.   The maximum butt interval is calculated from the inclination direction and each inclination amount of the rear end portion of the front single plate and the front end portion of the rear single plate, and the minimum butt interval, and this maximum butt interval is calculated. 5. The printed circuit board single board connection method according to claim 4, wherein when the value exceeds a specified value, an alarm is sounded to the alarm device or the operation is stopped. The front veneer is made to face the longitudinal rear end of the plate-like front veneer having a predetermined length and width so that the longitudinal front end of the next rear veneer is close to the front veneer. In the printed wiring board roll wound in the form of a roll by connecting a tape for connection to each other and the rear single plate,
Compare the position, inclination direction and amount of the rear end of the front veneer with the position, inclination direction and amount of the front end of the rear veneer, and the rear end of the front veneer and Position the distance between the rear end of the single plate and the front end of the rear single plate, and position the rear end of the single plate at the maximum end. A printed wiring board roll characterized by being formed smaller than a specified value.   The printed wiring board roll according to claim 6, wherein the specified value is 2 mm.

Images