JPS60202042A - Printed circuit board feeding device at defined interval - Google Patents

Abstract

PURPOSE:To improve quality in a laminating process by providing a temporarily stopping mechanism for a printed circuit board and a mechanism for inserting and removing a spacing member between said printed circuit boards, in a means which continuously feeds said printing wiring board at a defined interval, provided in a laminating device. CONSTITUTION:A printed circuit board laminating device consists of a timing part 2, a laminating part 3, and a cutting part 4, and a feeding device at a defined interval is provided in the timing part 2. A liftable quick-feed belt 11, which receives a printed circuit board P fed from a feeding part 5, at a lower position, and elevates it up to a feeding position, and a stopper 17, which stops the quick feeding of the printed circuit board P when the belt 11 is located in the lower position, are provided in the feeding device at a defined interval. And, a quick feeding mechanism including a clamping roller 21 which clamps and quickly feeds the printing wiring board P when the quick feed belt 11 is being elevated and feeding rollers 22, 23, and a spacing pin 25, etc. which is inserted and retracted from between adjacent boards P, are also provided to constitute the feeding device.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an apparatus used for manufacturing printed circuit boards, and particularly to a printed circuit board laminating apparatus having a laminating section for laminating a dry film on the surface of a printed circuit board while continuously feeding the printed circuit board. The present invention relates to a device for feeding printed circuit boards at regular intervals to a laminate section.

In this specification, the substrate of a printed circuit board is abbreviated as a "printed circuit board" or simply "substrate," and a dry film of photoresist or a protective film laminated onto a substrate is referred to as a "photoresist film" or "resist." It is abbreviated as "film".

Background of the Technology In recent years, the mainstream method for manufacturing printed circuit boards is to form a photoresist layer on the surface of a conductor layer of a board such as a copper-clad board, and to form a wiring pattern using photolithography technology. In this case, as a method for forming the photoresist layer, a method is mainly used in which a dry film-like photoresist is laminated onto the surface of the substrate.

Previously, resist film was laminated onto printed circuit boards by cutting a long strip of resist film to the length of the board and then laminating the resist film one by one, but this method was inefficient and hindered mass production. Missing.

Therefore, in recent years, a laminating apparatus has been developed that can continuously laminate a resist film in the form of a long strip onto a printed circuit board without cutting it. However, conventional laminating devices of this type have problems as described below.
Measures against this were requested.

Prior Art and Problems Conventional laminating equipment as described above laminates the printed circuit board on the surface of the printed circuit board by continuously feeding a long strip of resist film while continuously feeding the printed circuit board with a feed roller or the like at intervals. It has a laminate section that is continuously heat-pressed using rolls.

However, in the past, there were variations in the interval between printed circuit boards supplied from the preceding printed circuit board processing section or printed circuit board stock section to the laminating section, which caused the following problems. That is, the printed circuit boards laminated with resist films in the above laminating apparatus are sent out from the laminating apparatus while being interconnected by the resist films. Therefore, it is necessary to cut the resist film between each substrate and separate the substrates one by one. In this case, if the gap between the substrates is too narrow, the film cannot be cut properly, and if the gap is too wide, the substrates will be separated from each other after cutting. The protruding ends of the resist film tend to curl or curl. This causes problems in the subsequent photolithography process, leading to poor quality of the printed board and a decrease in yield.

OBJECT OF THE INVENTION The present invention aims to solve this problem, namely, in the laminating apparatus as described above, printed circuit boards can be continuously fed to the laminating section at regular intervals, so that resist films can be easily and efficiently applied after lamination. It is an object of the present invention to provide a fixed interval feeding device for printed circuit boards that can be cut and, as a result, improve productivity in the printed circuit board lamination process, improve the quality of each roll of pudding, and ultimately improve the yield.

Structure of the Invention The printed circuit board fixed interval feeding device according to the present invention is such that in the printed circuit board laminating apparatus as described above, four printed circuit boards are continuously fed to the laminate section at regular intervals. (a) It is disposed close to the printed circuit board supply section and is capable of rising and falling between an initial position below the article feeding path and an upper position at the same level as the feeding path. (b) A fast-feeding mechanism for thickly handling printed circuit boards, (b) fixed to a position near the rear end when the fast-feeding mechanism is located at its initial position, and capable of handling printed circuit boards fast-forwarded by the fast-feeding mechanism; (c) a stopper for stopping the rapid-forwarding mechanism and making it wait on the rapid-forwarding mechanism; (d) a fast-feeding mechanism that clamps and rapidly feeds the printed circuit board at a speed faster than the predetermined feeding speed in cooperation with the fast-feeding mechanism; (e) a feeding mechanism that is arranged to be openable and closable at the laminate section and feeds the printed circuit board to the laminate section at the predetermined feeding speed after the rapid feeding mechanism finishes feeding the printed circuit board; A preceding printed circuit board to be fed to the laminate section and the fast feed are arranged between the feeding mechanism and the laminate section so as to be able to be moved in and out of the feed path and movable parallel to the feed path. It is inserted between the following ψ printed circuit board that is rapidly fed by the feeding mechanism to ensure the constant interval between the two printed circuit boards, and after the feeding mechanism starts feeding the subsequent printed circuit board at a constant speed, the distance between the two printed circuit boards is The spacing member is removed from the spacer.

Embodiments of the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the same reference numerals indicate the same parts throughout the figures.

FIG. 1 is a perspective view schematically showing the appearance of an embodiment of a printed circuit board laminating apparatus (hereinafter simply referred to as a "laminator") equipped with a fixed interval feeding device for printed circuit boards according to the present invention, and FIG. FIG. 3 is a plan view and a side view, respectively, schematically showing the overall configuration. In these figures, the reference numeral 1 indicates the entire laminator, and the laminator 1 basically includes a timing unit 2, a laminating unit 3, and a cutting unit 4.
It consists of Further, reference numeral 5 in FIGS. 2 and 3 indicates that the printed circuit board P is transferred to the laminator 1 from the previous stage printed circuit board processing section or printed circuit board stock section (not shown).
The figure shows the substrate supply unit that supplies the substrate to the substrate.

First, the overall structure and operation of the substrate supply section 5 and each section 2, 3.4 of the laminator 1 will be briefly explained with reference to FIGS. 2 and 3. The substrate supply unit 5 transports the substrate FiP through a horizontal feeding path T (
3) in the direction of the arrow, and passes through the free support roller 8 to the laminator 1.
It is configured such that the signal is supplied to the timing adjustment section 2 of.

The timing adjustment section 2 of the laminator 1 has a fast-feeding belt 1
1, stopper 17, guide roller 18, width adjusting roller 19 (Fig. 2), clamp roller 21. It is equipped with a substrate constant-space feeding device according to the present invention having feeding rollers 22 and 23, a spacing bin 25, etc., and the substrates P supplied from the substrate supply section 5 are separated from each other by a predetermined gap d (for example, 2 to 3 m).
m) at a predetermined speed V (e.g., 0.5 to 21 Il) while lining up in a state facing correctly in the substrate feeding direction.
/min) to the next laminating section 3. The device for feeding substrates at regular intervals will be described in detail later with reference to FIGS. 4 to 7.

The laminating section 3 includes feed rollers 31 , 32 , 33
, 34, laminating roll 35, free support roller 3
6. The substrate P fed from the laminating unit 2 having the resist film reel 37 etc. is continuously fed at a constant speed (2) while maintaining the gap d between them, and the long strip-shaped resist film F (No. (Specifically indicated with hunting in Figure 2)
is continuously supplied at a constant feeding speed of the substrate, and after cutting a relief hole Hf (Fig. 2) corresponding to the reference hole Hp (Fig. 2) of the substrate P in advance in the resist film F, The film F is continuously thermocompressed onto both the upper and lower surfaces of the substrate P,
Then, the substrate P and resist film F after lamination
is sent to the next cutting section 4. In other words, the substrate P fed from the timing adjustment section 2 is kept at a constant speed by the feed rollers 31, 32, 33, and 34 while maintaining the distance d.
The film is continuously fed through a laminating roll 35 at the same time. On the other hand, long strip-shaped resist films F are continuously supplied from the upper and lower resist film reels 37 to the laminating roll 35, and are continuously thermocompressed onto the upper and lower surfaces of the substrate P, respectively. Furthermore, each of the gou punch units 40 has a laminating roll 3 in the supply path of the resist film F.
On the other hand, on the way to the laminating roll 35 of the substrate feeding path T, the substrate P
A sensor (not shown) for detecting the reference hole Hp is arranged at the same distance from the laminating roller 35 as the Gouy punch unit 40, and at the same time as this sensor detects the reference hole Hp, the Gouy punch unit 40 A relief hole Hf is formed in the resist film F. And these holes H
When the pSHf sheets are sent to the position of the laminating roller 35, they are overlapped as shown in FIG.

The cutting section 4 includes a feed roll 51 and boo IJs 52 and 53.
It is equipped with a cutting mechanism having a feed belt 54 wound horizontally, a cutter 60, etc., and the laminated substrate P and resist film F sent out from the laminating section 3 are
While continuously feeding the resist film F, the resist film F is cut at the gap between the substrates P, and the substrates P are separated one by one, and sent as shown by arrow B to a subsequent substrate processing section or substrate stock section (not shown). do. That is, the substrates P interconnected by the resist film F sent out from the laminating section 3
The line is moved at a constant speed by the feed rollers 5, 1 and the feed belt 54 (however, in practice, the peripheral speed of the feed heald 54 is set at a constant speed).
Continuously sent at a slightly faster rate (advantageous). The cutter 60 is provided between the feed roller 51 and the feed belt 54, and has a razor-shaped cutter blade 65.

This Kanku blade 65 can be moved up and down as shown in FIG. 3 by a support mechanism (not shown) and a drive mechanism, and at the same speed in the same direction B as the substrate row as shown in FIG. The feed roller 51 and the feed belt 54 are configured to cross at right angles at the same time as being fed (the actual locus is as shown by the dotted line in FIG. 2 (oblique to the substrate row feeding direction B)). When the gap between the substrates in the row of substrates is detected by a sensor (for example, a photo sensor) not shown between the cutter blades 65 and 65, the cutter blade 65 descends as shown in FIG. At the same time, the resist film F is moved in a direction perpendicular thereto, and the resist film F is cut at the gap between the substrates.

As a result, the preceding substrate P is separated from the substrate row and sent out in the direction of arrow B by the feeding belt 54. On the other hand, after the cutting is completed, the canter blade 65 is shown at 65' in FIG.
It rises at the position indicated by , moves upward on the substrate side in the opposite direction to the direction used when cutting, and returns to the initial position.

Next, the substrate constant-space feeding device will be described in detail with reference to FIGS. 4 to 7. 4 and 5 are a plan view and a side view, respectively, showing the timing alignment section 2 together with parts of the substrate supply section 5 and the laminating section 3. FIG.

The substrate constant-space feeding device has l pairs of rapid-feeding belts 11 provided at a front stage near the substrate supply section 5 along the substrate feeding path T (FIG. 5). This fast-feeding belt 11 is wound horizontally around pulleys 12 and 13, and a two-speed variable speed motor M1 is connected to the pulley 13 by a belt or chain 14.
2 at high speed Vl and low speed Vg (where ■゛<vt<v) of the substrate P as described later.
It is configured to allow various types of fast forwarding. In addition, the code S1,
S2 and S3 indicate sensors for detecting the substrate P that is fed from the substrate supply section 5 to the fast-feeding belt 11 and fast-forwarded, and although these sensors are not clearly shown in the figure, they each consist of a light-emitting element and a light-receiving element. It is a photo sensor.

The fast-feeding belt 11 is mounted on a support base 15 that can be raised and lowered in the vertical direction by a linear motor M2, and has a lower position (initial position) where the upper surface of the belt is lower than the substrate feeding path T, as shown by a solid line in FIG. As shown by a dotted line 11', the belt can be moved up and down between an upper position where the upper surface of the belt is approximately at the same level as the substrate feeding path T. The vertical stroke is, for example, 15-201. A stopper 17 is disposed near the rear end of the fast-forwarding belt 11 when it is at the initial position (lower position). This stopper 17 is connected to the substrate P fast-forwarded by the fast-forwarding bell) II as described later.
This is for stopping the machine at a predetermined standby position. still,
Reference numerals S4 and S5 indicate sensors for respectively detecting the initial position and upper position of the fast-forwarding bell (11), and these are the aforementioned photosensors or mechanical microswitches.

As shown in FIG. 4, fixed guide rollers 18 and width adjusting rollers 19 movable in the horizontal direction (arrows Z1, Z2) perpendicular to the substrate feeding path T are arranged on both sides of the fast-feeding belt 11, respectively. The width adjustment roller 19 is driven by a cylinder SYI using air or the like, and presses the substrate P at the standby position on the fast-feeding belt 11 against the guide roller 18 so that the substrate P is in a predetermined position and faces straight in the substrate feeding direction. It has the effect of cent. Note that the spring 20 is for adjusting the substrate pressing force of the cylinder SYI.

As shown in FIG. 5, a clamping roller 21 is provided above the fast-forwarding bell 1-11 so as to face the pulley 13 thereof. The clamping roller 21 is always urged downward by a spring 21a, and as will be described later, when the fast-feeding belt 11 rises, it clamps the substrate P placed on it, and cooperates with the fast-feeding belt 11 to clamp the substrate P. P at low speed ν
2 for rapid feeding.

A pair of feeding rollers 22 and 23 are arranged downstream of the first clamping roller 21, that is, on the side of the laminating section 3. The lower roller 22 is constantly driven by a belt or chain 24 in synchronization with the feed roller 31 of the laminating section 3, and can feed the substrate P at a predetermined speed V. The upper roller 23 is a driven roller that can be moved up and down by a cylinder SY2 using air or the like. This upper feeding roller 23 is normally in the upper position (initial position), and the substrate P rapidly fed by the fast feeding belt 11 and the clamping roller 21 can freely pass between the feeding rollers 22 and 23. As will be described later, when this rapid feeding of the substrate is completed, it is lowered to clamp the substrate P between the lower feeding roller 22 and feed the substrate P at a constant speed (2). Incidentally, reference numerals S6, S7, and S8 indicate the aforementioned photosensors for detecting the substrate P that is fed rapidly or at a constant speed along the feeding path T, and reference numeral S9 indicates the photo sensor of the upper feeding roller 23. A photosensor or microswitch as described above is shown for detecting the downward position. Furthermore, two spacing pins 25 (see FIG. 4) are provided on the left and right sides of the feed rollers 22 and 23, that is, on the side of the laminating section 3. The spacing bins 25 are set equal to a predetermined substrate spacing d, and are configured to be freely inserted into and removed from between the substrates 1 by being driven up and down by a cylinder SY3 using air or the like. On the other hand, the cylinder SY3 is attached to a slider 28 attached to a horizontal guide rod 27 of a fixed support 26, so that the spacing bin 25 is not shown in solid line in FIG.
It is movable parallel to the substrate feeding path T between a front position close to 3 and a rear position close to the feed roller 31 indicated by a dotted line 25'. As will be described later, the spacing pin 25 is normally located at the lower front position (initial position), and the rear end of the board P is located at the spacing pin 25.
When it passes through, it is raised as shown in FIG. When the subsequent substrate P is rapidly fed by the fast-feeding belt 11 and the clamping roller 21, spots 25' and 're' appear in FIGS. 4 and 5. . 1□F. □1 Yu, Yori, Ka:
, is abutted against the rear end of the row substrate P. As a result, the distance between the front and rear substrates P is set to d. Then, the spacing pin 25
is removed from between the substrates 1 and returned to the initial position by a return spring 29 stretched between the support stand 26 and the slider 28. Incidentally, the reference numeral SIO indicates the above-mentioned photosensor or microswitch for detecting the rear position 25' of the slider 28, that is, the spacing pin 25.

Now, the constant interval feeding of the substrates P by the substrate constant interval feeding apparatus as described above will be explained in detail based on the process diagrams shown in FIGS. 6A to 6 and the time chart shown in FIG. 7. Furthermore, the 6th A
Only related parts are schematically shown in FIG. 6, and FIG. 7 only shows the operations of sensor SI, SIO, motors M1, M2, and cylinders SYI to SY3.

(Al First, as shown in FIG. 6A, it is assumed that the rapid feed belt 11, the upper feed roller 23, and the spacing pin 25 are all in the initial position at the time of startup. In this state, the feed belt 7 of the supply section 5 When the th substrate P1 is sent, the substrate Pi is tilted diagonally when it passes over the support roller 8 by more than half, and the front end thereof is placed on the fast-feeding belt 11.

(As shown in FIG. 6B, when the sensor s1 detects the substrate P1, the motor M1 drives the fast-feeding belt 11 at high speed, and the substrate P1 is fast-forwarded at a high speed v.

(c) Next, as shown in FIG. 6C, when the sensor S2 detects the front end of the board P1, the motor M1 is driven at a low speed, and the board P1 is decelerated to a low speed v2 and hits the stopper 17. Then sensor S3 detects substrate P1,
The driving of the motor M1 (that is, the fast-forwarding bell) 11 is stopped, and the substrate P1 is made to stand by at that position. At the same time, the cylinder SYI is actuated by the signal from the sensor s3 as shown in FIG. 4 to drive the width adjustment roller 19 in the direction of arrow Z1, and presses the board PI against the guide roller 18 to set it in a predetermined position and in the correct direction. do.

(d) Furthermore, as shown in FIG.
The base iP1 is raised to the upper position as shown in FIG.
It is clamped by a clamping roller 21 at the upper feeding position. Incidentally, when the fast-feeding belt 11 reaches the upper position, it is detected by the sensor s5 and the motor M2 is stopped.

(Q) Next, the motor M1 is driven at a low speed again as shown in FIG. It passes through and is fed in fast forward at low speed v2.

(f) Then, as shown in FIG. 6F, when the sensor S8 detects the front end of the base 1IiP1, the drive of the motor M1, that is, the fast-forwarding belt 11 is stopped. At the same time, cylinder SY2
is activated, the upper feeding roller 23 descends in the direction of the arrow Y3, clamps the substrate P1, and starts feeding it at a predetermined speed (2). On the other hand, the lowering of the upper feeding roller 23 is detected by the sensor S9.
The motor M2 is reversely driven by the signal, and the fast-forwarding belt 11 is lowered as shown by the arrow Y2, and when it returns to the initial position, this is detected by the sensor S4 and the motor M2 is stopped. Furthermore, as shown in FIG. 4, the cylinder SYI is actuated by the signal from the sensor S9, and the width adjusting roller 19 returns to the direction of the arrow Z2.

(g1) Next, as shown in Fig. 6G, the first substrate P1, which is fed at a constant speed by the feed rollers 22 and 23, is fed to the feed roller 31 of the laminating section 3, and continues to be fed at a constant speed. On the other hand, the second substrate P2 from the substrate supply section 5 is transferred to the fast-forwarding belt 11 which has returned to the initial position from FIGS. 6A to 6C.
Referring to the figure, the rollers are supplied as described above from +8) to tc>, are fast-forwarded at high speed V1 and low speed V2, are brought closer to each other, and are placed on standby at a predetermined position.

(h) As shown in FIG. 6H, when the rear end of the first substrate P1 passes the sensor S6, the motor M2 is activated and the (
Fast forward as in the case of Fig. 6D explained in dl,
The belt 11 rises and the second substrate P2 is clamped by the clamping rollers 21.

(1) Next, as shown in FIG. 61, when the rear end of the first substrate P1 passes the sensor S7, the cylinder SY3 is actuated, and the spacing pin 25 rises in the direction of arrow Y5 to move the rear end of the first substrate P1 past the sensor S7. It is inserted between P2. At the same time, cylinder SY2 operates,
The upper feeding roller 23 ascends back to the initial position as shown by arrow Y4. At the same time, the motor M1 is again driven at low speed, and the second substrate P2 is moved between the fast-feeding belt 11 and the clamping roller 2.
1, the feed is fast-forwarded at low speed V2.

(J) Then, as shown in FIG. 6J, the second substrate FiP2, which is fed in fast forward motion, follows the first substrate P1, which is fed at a constant speed, while pushing the spacing pin 25 at the front end (Vx>V), It abuts against the rear end of the first substrate Pl via the spacing pin 25.

Thereby, the gap d between the first substrate P1 and the second substrate P2 is set to a predetermined value.

(When the k1 spacing pin 25 reaches its rear position, this is detected by the sensor S10, and the cylinder S
Y2 is activated, and the upper feeding roller 23 moves downward in the direction of arrow Y3 to clamp the second substrate P2. At the same time, the cylinder SY3 operates again to remove the spacing pin 25 from between the substrates Pl and P2 in the direction of the arrow Y6. As a result, the substrates P1 and P
2 are continuously fed at a constant speed V while maintaining a predetermined distance d from each other. On the other hand, the spacing pin 25 that has been pulled out downward is returned to the initial position (indicated by the dotted line) in the front direction by the return spring 29 as shown by the arrow X2. At the same time, the lowering of the upper feeding roller 23 is also detected by the sensor S9, and as described above, the fast-feeding belt 11 is lowered and returned to the initial position by the motor M2.

(1,) From then on, for each board after the third board P3 (Fig. 6), from (g) to the second board explained in (kl),
The same steps as for substrate P2 are repeated. Incidentally, as is clear from FIG. 7, the sensor S8 is connected to the first substrate P.
It is only used to detect I.

In this way, even if there are variations in the board spacing at the time of supply, the wooden boards P supplied from the board supply section 5 are aligned at predetermined intervals in the timing alignment section 2 and are continuously transferred to the laminate section 3. It will be shipped.

As described above, according to the printed circuit board constant interval feeding device according to the present invention, the printed circuit boards P can be continuously fed to the laminating section 3 at predetermined intervals, and therefore the resist film in the laminating section 3 can be properly maintained. Not only does it enable lamination, but it also enables efficient and good cutting of the resist film after lamination.

As described above, according to the present invention, it is possible to realize a printed circuit board fixed interval feeding device that can continuously feed printed circuit boards at fixed intervals, and therefore, resist film cutting after lamination can be easily and efficiently performed. As a result, it is possible to improve the quality of printed boards and, in turn, to improve the yield, and the technical and economic effects are significant.

[Brief explanation of the drawing]

FIG. 1 is a perspective view schematically showing the appearance of an embodiment of a printed circuit board laminating apparatus equipped with a printed circuit board constant-space feeding device according to the present invention, and FIGS. 2 and 3 are schematic views showing the overall structure of the laminating apparatus, respectively. Plan view and side view, Figures 4 and 5
The figures are a plan view and a side view, respectively, of the timing adjustment section of the laminating apparatus, and FIGS. 6A to 6A and 7B are a process diagram and a time chart, respectively, showing the operation of the printed circuit board fixed interval feeding apparatus. ■...Printed circuit board laminating device, 2...timing unit, 3...laminate unit, 4...cutting unit,
5... Board supply unit, 7... Feeding belt, 11...
Rapid feed belt, 17...stopper, 21...clamping roller, 22, 23...feeding roller, 25...
- Spacing pin, 31, 32, 33, 34... Feed roller, 35... Laminating roll, 37... Resist film reel, 40... Gui punch unit, 51... Feed roller, 54...・Feed belt, 60
...Cutter, 65...Cutter blade, P...
・Printed circuit board, F...resist film, T...
Substrate feed path, S1 to SIO...sensor, Ml, M2...
・Motor, S1~SIO...Cylinder. Patent Applicant Fujitsu Limited Patent Application Agent Akira Aoki Patent Attorney Kazuyuki Nishidate Patent Attorney Yukio Uchida To Akira Yamaguchi & 68 Figure 6B Figure 60 Figure 6D Figure 6E Figure l Figure 6F Fig. 6G 2″ ( Fig. 6H Fig. 61 Fig. 6j Fig. 3 h6)

Claims (1)

[Claims] 1. A laminating apparatus equipped with a means for continuously supplying printed circuit boards at regular intervals, the means having a stop mechanism for temporarily waiting the printed circuit boards, and a mechanism for inserting and extracting a spacing member between the printed circuit boards. 1. A fixed-space feeding device for printed circuit boards, comprising a mechanism for feeding the printed circuit boards at regular intervals. 2. In a printed circuit board laminating apparatus having a laminating section that continuously feeds printed circuit boards at intervals and continuously laminates a long strip-shaped film member on the surface of the printed circuit boards, the printed circuit boards supplied from the printed circuit board supply section are A constant-space feeding device for printed circuit boards that continuously feeds printed circuit boards to the laminate section at constant intervals,
(b) A fast feed for printed circuit boards that is disposed close to the printed circuit board supply section and that can be raised and lowered between an initial position below the article feeding path and an upper position at the same level as the feeding path. (b) a mechanism fixedly installed near the rear end of the fast-forwarding mechanism when the fast-forwarding mechanism is located at its initial position; (c) a stopper disposed above the fast-forwarding mechanism, which clamps the printed circuit board placed on the fast-forwarding mechanism when the fast-forwarding mechanism rises to the upper position, and cooperates with the fast-forwarding mechanism; (d) A rapid feeding mechanism that rapidly feeds the printed circuit board at a speed faster than the predetermined feeding speed. a feeding mechanism that feeds the printed circuit board to the laminate section at the predetermined feeding speed after the fast-forward feeding of the printed circuit board by the fast-forward feeding mechanism; and (e) between the feeding mechanism and the laminate section. a preceding printed circuit board to be fed to the laminate section and a subsequent printed circuit board to be fed in fast-forward by the fast-forward feeding mechanism; a spacing member that is inserted between the printed circuit board and the printed circuit board to ensure the constant spacing between the two printed circuit boards, and is removed from between the two printed circuit boards after the feeding mechanism starts feeding the subsequent printed circuit board at a constant speed; What is claimed is: 1. A fixed interval feeding device for printed circuit boards, comprising: 3. The apparatus according to claim 2, wherein the rapid feed mechanism is capable of rapidly feeding the printed circuit board at two different speeds, both of which are faster than the predetermined feeding speed. 4. In the apparatus according to claim 2 or 3, the printed circuit board fast-forwarded by the fast-forwarding mechanism is placed on the side of the fast-forwarding mechanism at a predetermined position with the feeding direction correctly oriented. A device characterized by having a width adjustment mechanism for setting.