JPS6221676A - Tape applying device - Google Patents

Abstract

PURPOSE:To apply a tape automatically onto a specific portion by clamping a printedboard while projecting partially from work table then rotating a lever having a tape stop roller at the leading edge against said projected portion. CONSTITUTION:A printedboard P is set on a work table 2. While adhesive tape 37 is developed from a reel 36 along the underface of lever 27 to the front edge of tape pad 26. Upon turning on of a start switch under this condition, the crank plate 11 will stop the printedboard P. Then the lever 27 will rotate to the right and direct upward. Thereafter, an air-cylinder 22 will function to advance the baseboard 19 thus to advance the lever 27. Furthermore, another air-cylinder will function again to rotate the lever 27 to the left thus to apply the adhesive tape 37 below the tape stopper pad 26 onto the printedboard P.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for pasting an adhesive tape onto an edge of a printed circuit board.

(Conventional technology and its problems) When manufacturing a large number of printed circuit boards that form electric circuits,
There is a process of drilling a large number of holes in plates of the same shape and size, but in such cases it is more efficient to overlap several plates and drill holes at the same time.

In order to polymerize and fix the printed circuit boards, conventionally adhesive tape was pasted manually to the overlapping edges of the printed circuit boards, but this method required a lot of manpower and had problems in terms of work efficiency. was there.

Furthermore, the present applicant had previously proposed a tape pasting device (Japanese Patent Application Laid-open No. 79491/1983) for mechanizing the above-mentioned work; This device has drawbacks such as not being able to tightly fix a large number of polymerized printed circuit boards, and the adhesive tape easily peeling off, so it has not yet been put into practical use.

In order to solve the above-mentioned problems, the present applicant first made it possible to set a polymerized printed circuit board with a part protruding from the work table, as shown in FIG. A device board is provided facing the protrusion of the printed circuit board so as to be movable up and down and back and forth, and has a tape pressing roller at the tip and a rear part of a lever having a tape pressing pad behind the roller. The lever is pivoted to the device board so that the lever can swing from a horizontal position to an upward position, and the adhesive tape pulled out from the reel is guided from the rear end of the lever to the tip of the lever along the lower surface of the lever and held. A tape pasting device (Japanese Patent Application No. 1983-1983) characterized in that a cutter is provided on the device board so as to be able to move up and down and cut the tape near the front edge of the tape holding pad when the lever is in the retracted position. 14321
No. 6) was invented.

(Problems to be Solved by the Invention) However, since the device shown in FIG. 12 integrates several printed circuit boards that are polymerized, LI=l+ +β2+13 as shown in FIG. 7
! 2 is quite long.

On the other hand, in the process of plating a printed circuit board, in order to prevent plating of the reference hole Q of the printed circuit board P (see Figures 14 to 17), an adhesive tape 37 is applied to the front and back surfaces near the reference hole Q.
You may want to paste the . If the apparatus shown in Fig. 12 is used as is to apply this tape to prevent plating, the length of the tape 37 to be applied will be as shown in Fig. 14. , is unchanged, 14 corresponding to 12 in FIG. 13 becomes 14<lN, and 15 corresponding to 23 in FIG. 13 becomes 1>13. For this reason, as shown in FIG.
Even the through holes R that require plating will be covered. Therefore, the device shown in FIG. 12 has a problem in that it cannot be used as it is for attaching a plating prevention tape.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention makes it possible to set a single printed circuit board with a part of it protruding from the work table, and also connects this protrusion with an air cylinder. A device board is provided facing the protrusion of the printed circuit board so as to be movable up and down and back and forth, and has a tape pressing roller at the top of the tip.
The rear part of the lever, which has a tape holding pad at the rear lower part of the roller, is pivoted to the device board so that the lever can be swung from a horizontal position to an upward position. A cutter is provided on the device board so as to be able to be raised and lowered so that the tape can be guided and held from the rear end along the lower surface of the lever to the tip of the lever, and that cuts the tape near the front edge of the tape holding pad when the lever is in the retracted position. The tape pasting device is constructed so that it can be used for pasting the plating prevention tape.

(Function) According to the device of the present invention configured as described above, the fifteenth to first
l without changing Ll as shown in Fig. 7.

=18, the adhesive tape 37 can be attached so as to cover only the reference hole Q of the printed circuit board P. Therefore, according to the present invention, by simply replacing the tape holding roller and the lever having the tape holding pad of the apparatus shown in FIG. 12, this apparatus can also be used for pasting plating prevention tape on printed circuit boards. can.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In the figure, 1 (see Figure 12.13) is a polymerized printed circuit board, P (see Figures 1.2.8 to 11.15 to 17) is a single printed circuit board, and 2 is the printed circuit board 1 or P. This is a work table on which the objects are placed horizontally.

On this work table 2, there is a printed circuit board 1 or
In order to set it in a fixed position, the positioning bar 3 is fixed as shown in FIG.

4 (see Fig. 7) is a slide guide fixed horizontally above the work table 2. A cylinder holder 5 is slidably fitted into this slide guide 4, and a handle screw 6 is screwed into the slide guide 4. This allows the holder 5 to be fixed at a desired position via the shim 7. Further, a temporary printed circuit board support 8 is fixed to the lower end of the holder 5, and the edge of the printed circuit board 1 or P projected from above the work table 2 is stopped by the stepped portion 8a. This support 9 is a horizontal member fixed to the side surface of the work table 2 in order to support the end of the plate 8.

Further, an air cylinder 10 for pressing down the printed circuit board 1 or P from above is installed in the cylinder holder 5, and a clamp plate 11 is attached to the lower end of the piston rod 10a.
will be established.

Further, two guide columns 12 are vertically erected at an appropriate distance from each other so as to face the side of the work table 2 on which the air cylinder 10 is attached. Reference numeral 13 denotes an upper holder plate that connects the upper ends of the guide columns 12.

A block-shaped slider 14 (see FIG. 2.3) is fitted onto these two guide columns 12 so as to be able to move up and down, and the air cylinder 1 is fixed to the upper holder plate 13.
The piston rod 15a of No. 5 is connected to the slider 14 via a floating connector 16.

There are also two horizontal guide bars 1 at the top and bottom of the slider 14.
7 and fixed to both ends of these two horizontal guide bars 17 (2.3.
A device board 19 is installed vertically on one side of the slider 4 with a slight gap therebetween (see Figure 5), an opening 19a is formed in the middle of this device board 19, and a bracket protrudes from this opening 19a. 2o protruding from the slider 14,
A cylinder holder 21 facing the bracket 20 is provided protruding from the device board 19 at the rear of the bracket 20,
A piston rod 22a of an air cylinder 22 fixed to this holder 21 is connected to a bracket 20 via a floating connector 23.

Also, a bracket 6 is fixed to the upper part of the tip with a bolt 66.
A rubber tape pressing roller 24 is pivotally supported at 7 by a pin 25, and the rear part of a lever 27, which has a tape pressing pad 26 provided at the rear lower part of the roller 24, is pivotally supported to the device board 19 via a pivot shaft 28. A rod 29 (second.
4.5)). 30 is a knock pin for fixing the mouth/throat 29 to the lever 27.

Then, as shown in FIGS. 4 and 5, on the back side of the device board 19,
An air cylinder 31 is provided to swing the lever 27 from a horizontal state to an upward state via a rod 29.

32 is a bracket protruding from the base plate 19; 33 is a hinge pin connecting the bracket 32 and the cylinder 31;
4 is the piston rod 31a of the cylinder 31 and the rod 29
It is a crosshead that connects the

Further, as shown in FIGS. 1 and 3, a reel stand 35 is fixed to the device board 19 above the rear part of the lever 27, and an adhesive tape reel 36 can be detachably attached to the reel stand 35. 36a is reel 36
The shaft 35a is a drop bearing groove of this shaft 36a.

Further, a semi-cylindrical guide groove 27a for guiding the adhesive tape 37 pulled out from the reel 36 is formed at the rear of the lever 27, and the adhesive tape 37 is inserted through the guide groove 27a into the lever 27 with its adhesive surface facing downward. Lever 2 along the bottom
7 and the tip so that it can be held.

That is, as shown in FIGS. 1 and 2, a shaft 38 is provided protruding from the device board 19 at the lower rear of the lever 27, and the base of a tape presser lever 39 is pivotally supported on this shaft 38. By tensioning a spring 42 between a pin 40 protruding from the rear extension part 27b of the lever 27 and a pin 41 protruding from the rear extension part 27b of the lever 27, the tip of the lever 39 can be pressed against the tape 37 on the lower surface of the lever 27. This is to prevent the tape 37 from returning and dripping. 43 is the rear extension portion 2 of the lever 27.
7b is a lever stopper plate protruding from the device board 19; 44 is a stopper bolt that is screwed into this plate 43 and abuts against the upper surface of the rear extension 27b of the lever 27; 45 is a locknaft thereof; be.

In addition, the base of the leaf spring 46 is attached to the upper surface of the lever 27 by the bolt 47.
A pin 48 that holds the lever 27 is supported at the tip of the leaf spring 46, and the upper ends of the links 49 are fitted and locked to both ends of the pin 48, and the lower ends of these links 49 are fixed. Place the pin 50 between the parts below the lever 27.
Two rollers 51 for preventing the tape 37 from sagging are fitted onto this pin 50, and a plate 52 for preventing the tape 37 from sagging is fitted between these two rollers 51. That is, the roller 51 and the plate 52 are always pressed against the tape 37 on the lower surface of the lever 27 by the action of the leaf spring 46.

Further, as shown in Fig. 1.4.6, two vertical slide guides 53 are fixed to the device board 19 below the lever 27 at an appropriate interval, and these slide guides 5
A cutter slider 54 having a T-shaped planar cross section is fitted between the cutter parts 3 so as to be slidable in the vertical direction, and an opening 54b is provided in the center of the outwardly protruding part 54a of this slider 54, and the cutter slider 54 is provided so as to protrude from the device board 19. One circular end 56a of a bell crank 56, which is pivotally supported on the shaft 55, is fitted into the opening 54b, and the other end 56b is connected to a piston rod 59a of an air cylinder 59 via a pin 57 and a clevis 58. The base of this air cylinder 59 has a hinge pin 60
and is pivotally supported on the device board 19 via a bracket 61.

Also, the outward protrusion 54a of the cutter slider 54
A cutter holder 62 is fixed to the top of the printed circuit board 1 with a bolt 63, a cutter 63 is fixed to this holder 62 via a cutter presser foot 64 with a bolt 65, and the tape 37 that has been pasted on the top surface of the printed circuit board 1 is moved when the lever 27 is moved back. position, the cutter 63 is raised by operating the air cylinder 59, and the tape pressing pad 26 is
It is configured to cut near the leading edge of the

Note that the operation of each part of the device of the present invention described above is electrically controlled in accordance with the order of operation explanation described below.
Since this control sequence circuit is well known, its explanation will be omitted.

Next, the operation of the apparatus of the present invention constructed as described above will be explained. 1 and 2 show a state in which preparation for work is completed, and in this case, one printed circuit board P is set at a predetermined position on the work table 2. FIG. That is, one side of the printed circuit board 1 is brought into contact with the positioning bar 3, and the other side of the printed circuit board 1 is brought into contact with the stepped portion 8a of the printed circuit board support plate 8.

The adhesive tape 37 pulled out from the reel 36 is guided along the lower surface of the lever 27 through the guide groove 27a at the rear of the lever 27 to the front edge of the tape presser pad 26 as shown in FIG. The tape 37 is supported so as not to sag by the tip of the tape pressing lever 39 being biased, the roller 51 biased by a leaf spring, and the droop prevention plate 52.

When the start switch (not shown) is turned on in this state, the air cylinder 10 (see Fig. 1.7) is activated and the piston rod 10a is lowered to push down the clamp plate 11 and press down the printed circuit board P. .

Next, the air cylinder 31 (see FIG. 4.5) is actuated to raise the piston rod 31a, and as a result, the lever 27 rotates from the position shown in FIG. 1 about the pivot shaft 28 to an upward position.

Next, the air cylinder 22 operates, and the piston rod 2
As a result of the retraction of the lever 2a, the device board 19 moves forward relative to the slider 14, and the lever 27 also moves forward in the direction of arrow A in FIG. 8, resulting in the state shown in the figure.

Next, the air cylinder 31 is operated again and the piston rod 31a is retracted, so that the lever 27 rotates in the direction of arrow B in FIG. 8 and enters the state shown in FIG. 9.

When the lever 27 is in this state, the tape presser pad 26
The lower adhesive tape 37 is pressed against the printed circuit board P and adheres to it.

From this state, when the air cylinder 22 is activated and the piston rod 22a is pushed out, the lever 27 moves back together with the device board 19 as shown by arrow C in FIG. It is pulled out from the reel 36 as shown by arrow E in the figure.

Next, the air cylinder 59 operates and the piston rod 59
By pushing out the bell crank 56, the shaft 5
5 as a fulcrum in the clockwise direction in FIG. 10. As a result, the cutter slider 54 is pushed up, and the cutter 63 is pushed up as shown in FIG. 10 to cut the tape 37, and then the piston rod 59a is retracted. The cutter 63 returns to its original position. When the piston rod 15a descends, the device board 19 descends together with the slider 14, so that the lever 27 and the roller 24 move in the direction of arrow F in FIG.
11, bend the tape 37 as shown in FIG. 11, and attach it to the edge of the printed circuit board P.

After the roller 24 reaches the level shown in FIG. 11, the air cylinder 22 is actuated to advance the roller 24 to the position shown in the figure and then retreat it again. In this way, the tape 37 is also reliably adhered to the lower surface of the printed circuit board P.

When the roller 24 retreats, the piston rod 15a of the air cylinder 15 retracts, and the roller 24 rises together with the device board 19, returning to the state shown in FIG. to be released.

This completes one cycle of the apparatus of the present invention, and by repeating this operation, the tape can be applied automatically and efficiently.

(Effect of the invention) According to the apparatus of the present invention configured as described above, the fifteenth to first
As shown in Figure 7, without changing l.

-1ll, the adhesive tape 37 can be attached so as to cover only the reference hole Q of the printed circuit board P. Therefore, according to the present invention, the tape pressing roller 24 and the tape pressing pad 26 of the apparatus shown in FIG.
By simply replacing the lever 27 having the bracket 67 with the lever 27 having the bracket 67 shown in FIG. 1, the apparatus shown in FIG. .

4. Additional relations The present invention is an invention in which the essential parts of the patented invention of Japanese Patent Application No. 59-143216 are made into essential parts of the structure, and It accomplishes the same purpose as that patented invention, which is to provide a device for applying tape.

[Brief explanation of the drawing]

Fig. 1 is an elevational view of the device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a view in the direction of the ■ arrow in Fig. 1, Fig. 4 is a view in the direction of the - arrow in Fig. 1, and Fig. 5 is a view in the direction of the ■ arrow in Fig. 1. Figure 2 is a view in the direction of the V arrow in Figure 2, Figure 6 is a view in the direction of the ■ arrow in Figure 1, Figure 7 is an elevation view of the printed circuit board clamping device, Figures 8 to
Fig. 11 is an explanatory diagram of the operation of the device of the present invention, Fig. 12 is an elevational view of the original device of the invention, Figs. 13 and 14 are explanatory diagrams of its operation, and Figs. The explanatory diagram, FIG. 17, is a plan view of FIG. 16. 1... Polymerized printed circuit board P--11 printed circuit boards 2... Work table 10--Air cylinder 12... Guide column 14... Slider 17... Horizontal guide bar 19... Device Board 2
2... Air cylinder 24... Tape press roller 26... Tape press pad 27... Lever 31... Air cylinder 35... Reel stand 36... Adhesive tape reel 37... Adhesive tape 39. ... Tape presser lever 46 ... Leaf spring 51 ... Roller 52 ... Anti-sagging plate 54 ... Cutter slider 56 ... Bell crank 59 ... Air cylinder 63 ... Cutter 6-F1 bracket Patent applicant: Takeuchi Seisakusho Co., Ltd. Figure 3 jl Figure 15 Figure 16 Figure 17

Claims (1)

[Claims] 1. A printed circuit board can be set with a part of it protruding from the work table, and this protrusion can be clamped by an air cylinder, and the device board can be lifted and lowered by facing the protrusion of the printed circuit board. The rear part of a lever that is movable back and forth and has a tape pressing roller at the top of the tip and a tape pressing pad at the rear lower part of the roller is pivoted to the device board, and the lever is swung from a horizontal position to an upward position. At the same time, the adhesive tape pulled out from the reel can be guided and held from the rear end of the lever along the lower surface of the lever to the tip of the lever, and when the lever is in the retracted position, the adhesive tape is pulled out from the tape holding pad. A tape pasting device characterized in that a cutter that cuts near the leading edge is provided on the device board so as to be movable up and down, so that it can be used for pasting a plating prevention tape.