JPS60178160A - Film sticking and cutting device - Google Patents

Abstract

PURPOSE:To stick the end portion of a film to a substrate intermittently fed sheet by sheet without projecting by sticking the film to the substrate in such a manner as to begin with a little inside from the leading end thereof so that the film is ended at a portion a little before the trailing end of the substrate. CONSTITUTION:While the leading end of a film 2 drawn out from a reel 2 is positioned at the rear point (a) of a sticking roller 11, a substrate 1 is transferred by a belt 5, so that the leading end thereof is detected by a detector 31 to suitably detect the travel of the substrate 1 with a detector. When the leading end of the substrate 1 reaches between the point (a) and a contact point CL between the sticking roller 11 and a receive roller 12, a pair of take-back rollers 22 of a separator 4 are turned in a designated angle. Thus, the leading end of the film 2 is moved to the CL point, and then the substrate 1 and the film 2 are pressed by the paired rollers 11, 12 and advanced. Subsequently, when the trailing end of the substrate 1 is detected by a detector 32, only the film 2 is cut by cutting means D to completely stick the film 2 to the substrate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for adhering and cutting a film used for adhering a photosensitive film, for example, during the manufacturing process of a printed circuit board for configuring an electric circuit.

As such a device that automatically attaches a film to a substrate, there is a device that supplies the substrate and film between a receiving roller and a pressure roller, and attaches the film to one or both sides of the substrate. .

In the case of such conventional equipment, after applying the film,
The film is manually cut along the edge of the substrate using a knife or the like, but as shown in FIG. Is the film protruding from the edge of substrate 1 and protruding during exposure and printing? This may cause problems such as part of the edges peeling off.

In order to solve this problem, the periphery of the film 2 should be aligned with the periphery of the substrate 1 or be retracted from the periphery of the substrate 10 as shown in Fig. 8, but such adhesion should be done automatically. was extremely difficult.

The present invention provides an apparatus that can automatically carry out the film adhesion method described in 2 above, which has been considered difficult in the past.

That is, the present invention includes a substrate transport means for intermittently transporting nearly horizontal substrates one by one, a film supply means for supplying an adhesive film separated from a separator near the substrate with the adhesive layer on the substrate side, The film supplying means includes a film cutting means for cutting only the film on the separator; The substrate is entered between the sticking roller and the receiving roller under the condition that the leading edge of the film has advanced between the sticking roller and the receiving roller, and the cutting means is operated under the condition that the rear end of the substrate has passed a predetermined detection position. A control circuit is provided to control the substrate conveyance means, film supply means, sticking means, and film cutting means so as to cut the film, and a vertical line passing through the outer periphery of the sticking roller of the sticking means and the center of the roller is provided. the distance from the intersection point CL to the cutter standby position f of the cutting means;
The distance from the point CL to the detector 32 at the rear end of the substrate of the conveying means is made almost equal, and the device of this invention can automatically attach the film so that it does not protrude from the substrate. It is.

Hereinafter, details of the present invention will be explained based on an embodiment shown in the accompanying drawings.

A in FIG. 1 is a conveying means that moves the endless belt 5 to the front and rear IJs.
6.71 times, it is driven intermittently in the direction of the arrow at a speed ■. The film 2 has an adhesive layer 3 as shown in FIG.
A separator 4 is superimposed on this layer 3. In the illustrated example, the adhesive layer 3 is a photosensitive resist, but this resist is difficult to separate from the film 2 unless it is exposed to light.
Since it has jl:, it can be treated as an adhesive film.

The film supply means B, as shown in FIG.
and a gill 10 for winding up the separator 4, and both 1
Although the take-up roller 9 is free-rotating, it is constructed in such a way that a brake can be applied as needed.

The pasting means C consists of a pasting roller 11 and a roller 12, both of which are driven by appropriate driving means in the direction of the arrow at a speed of 2. The pasting roller 11 is not shown. It is supported by an elevating bearing 1, and is raised and lowered at predetermined times by raising and lowering this bearing by an appropriate driving means.

Reference numeral 13 denotes a separator separating table, which has an acute angle at its tip and swings about a rear shaft 14 as a fulcrum, and the swinging is performed at a predetermined time by an appropriate driving means. In addition, separation table 1
No. 3, the rear part is shaped like an arc, and a freely rotating roller 15 is brought into contact with the upper part of this part.

As shown in FIG. 1, the film cutting means is composed of a canter roller 20 to which a cutter 19 is fixed and a receiving roller 21 facing this roller 20. The roller 20 is intermittently driven by an appropriate driving means, and the roller 21 is driven freely. It is rotation. Further, the gap between the rollers 20 and 21 is appropriately adjusted so that the cutter 19 cuts only the film 2 and the adhesive layer 3, but does not cut the separator 4.

Reference numeral 22 in FIG. 1 denotes a pair of rollers for taking up the separator 4, which normally rotate freely, but only when necessary are connected to the drive shaft by an electromagnetic clutch ζ and driven in the direction of the arrow at rotational speed V. Ru.

23 and 24 are conveyance rollers that pinch and convey the substrate 1 after the film has been pasted, and are driven at a speed V in the direction of the arrow.

Reference numeral 25 denotes a hollow adsorber that can move forward and backward along the surface of the separation table 13 in the raised position, but its lower surface is a perforated plate as shown in Fig. 1, and a vacuum source such as a vacuum pump is not allowed to run inside the adsorber 25. 0
The suction device 25 is connected by a flexible hose, and the interior of the adsorption device 25 is vacuum-suctioned at a predetermined time by a control G such as a solenoid valve.

Reference numeral E denotes an airflow generating means, which consists of a plurality of nozzles 26 as shown in FIG. This nozzle 26 is provided with 274 air supply pipes, and these nozzles 26 are connected to the receiving roller 12.
facing one direction. Furthermore, detectors 31 and 32 of any type such as photoelectric type are provided at the front and rear parts of the substrate transport means A, and these detectors 31 and 32 detect the front and rear ends of the substrate 1. It is. Also, the rear end of the board 1 is 1.1!
The distance from the output detector 32 to the point CL where the vertical line passing through the center of the roller 11 intersects the outer periphery of the sticking roller 11 is the same.<The distance from the point CL to the standby position f of the cutter 19 is Keep them almost equal. That is, from the CL point,
The detector 32 is provided at a distance from the point CL that is approximately equal to the length of the film, which is the sum of the distance G to the cutting position e and the distance to the standby position f of the cutter 19.

FIG. 10 is a block diagram of the control means TTL.

A control circuit 30 composed of ICXLSI or the like is provided, and includes the detectors 31 and 32, a detector 33 such as a pulse-ray rake or a timer for detecting the amount of belt movement of the conveyance means A, and the start of crimping of the pasting roller 11. Input devices such as a detector 34 for detecting the amount of rotation of the roller 9, a detector 35 for detecting the rotation amount of the roller 9, and a detector 36 for detecting the position of the suction unit 25 are connected to the input port of the control circuit 30 via an interface 37.

Further, the driving means 41 of the conveying means A, the sticking roller 11
driving means 42, elevating means 51, and take-up roller 9
brake drive means 43, drive means 44 for the separation table 13,
A drive means 45 for the cutter roller 20, a drive means 46 for the separator take-up roller 22, and an electromagnetic clutch 49;
Output devices such as the solenoid valve 47 of the adsorber 25, the advancing/retracting means 50, and the solenoid valve 48 of the airflow generating means E are connected to the interface 52.
It is connected to the output port of the control circuit 30 via.

Next, its effect will be explained.

FIG. 1 shows the preparation state, in which the adhesive roller 11, which has already been rotated by the drive means 42, is in the pressing position 11c (i.e., in the lowered position, and the tip of the film 2 is in the adhesive roller 11c).
It is located at point a near the bottom of .

At this time, compressed air is injected from the nozzle 26 toward point a to prevent the tip of the film 2 from drooping.

In this state, the conveying means A is driven by the driving means 41, and the substrate 1 is placed on the belt 5 and advances, and the tip of the substrate 1 is placed on the belt 5.
1, the signal is sent to the 11j control circuit 30, the control circuit 30 activates the detector 33, and starts detecting the amount of movement of the substrate 1. When the amount of movement detected by the detector 33 reaches a preset value, the tip of the substrate 1 is designed to reach point d, which is slightly ahead of point a, as shown in FIG. When the point d is reached, the driving means 46 is activated by a signal from the detector 33, and after separating the film 2, the rollers 22 which sandwich and press the separator 4 are rotated by a set angle and then stopped. , move the separator 4 in the direction of the arrow in FIG. This amount of movement is the same as the distance between the outer periphery of the sticking roller 11 and the outer periphery of the roller 11 from the point CL where the vertical line passing through the center of the roller 11 intersects to the point a. The leading edge of the film 2, which has progressed while peeling off at the leading edge, moves from point a to point CL, but since the leading edge of the substrate 1 being transported by transport means A also reaches the CL point, the leading edge of the film 2 moves from point a to point CL. 4 As shown in the figure, glue the substrate 1 and film 2 at the same position as the tip of the substrate 1 or slightly behind the tip of the substrate 1.
and progresses while being pressed together by rollers 11.

As described above, when the tip of the film 2 starts to be crimped onto the substrate 1, the solenoid valve 48 closes and the blowing of compressed air from the nozzle 26 is stopped.

In this way, the rollers 11 and 12 sandwich the substrate 1 and the film 2 and move at a rotational speed V, thereby continuously pasting the film 2 onto the substrate 1. During this time, the take-up roller 9 rotates freely.
Since the separator take-up p-ra 22 also rotates freely, the film 2 is pulled out together with the separator 4 from Lee/l/8, and comes in contact with the separator 4, which is integrated with the film 2 wound around the outer circumference of the reel 8. The separated separator 4 is wound around the zebrator 4 on the outer periphery of the reel \10.

As shown in FIG. 20 rotates, and the cutter 19 cuts the film 2 on the roller 21'' along with the adhesive layer 3, making one rotation.
When the cutting edge of the cutter 19 reaches point f, the cutting stops. However, since the separator 4 is not cut, the film 2 moves together with the separator 4.

By making the length from the substrate 1 to the detector 32 equal, or by making the film 2 slightly shorter,
The rear end of the film 2 attached to the substrate 1 is aligned with or slightly in front of the rear end of the substrate 1.

In this way, when the cutting point g of the film 2 reaches the zero point at the tip of the suction device 25, the driving means 44 is activated.
The separation table 13 rotates slightly downward. Therefore, when the rear end of the film 2 before the cutting point g does not lose support of the separator and falls onto the substrate 1, the falling angle becomes shallow, thereby preventing the generation of bubbles and wrinkles.

Furthermore, when the cutting position g reaches the tip of the separating table 13, the brake driving means 43 is activated to apply brakes to both rollers 9, and the clutch 49 of the separator 4 take-up roller 22 is disengaged, so that the film is not cut off. 2 and the separator 4 stop advancing, the separator 4 stops and reaches the cutting position g.
Only the earlier film 2 moves.

When the rear end of the substrate 1 to which the film 2 is pasted passes the CL point, the sticking F-ra 11 is raised by the operation of the lifting means 51 as shown in FIG. Then, the solenoid valve 47 opens and the adsorption device 25 starts adsorption.
Adsorb film 2.

Next, the clutch 49 is engaged, and when both rollers 22 rotated by both drive means 46 rotate through an angle corresponding to the length from point a to point b, the suction device 2 is
5 also moves forward at a surface speed V, causing the tip 111 of the film 2 to advance below the sticking roller 11 as shown in FIG. At the same time as the leading edge of the film 2 reaches point a, the solenoid valve 48 opens.
Air starts blowing out from the nozzle 26, and then the electromagnetic valve 47 closes to stop the adsorption of the film 2 by the adsorption device 25 and release the film 2 from the adsorption device 25. Return the chisel to its original position.

At the same time as the suction device 25 returns to its original position, the sticking roller 11 is lowered by the action of the elevating means 51, resulting in the initial state shown in FIG.

Note that if the film 2 integrated with the adhesive layer 3 is strong, the tip of the film 2 separated from the separator 4 will go straight below the sticking roller 11 by simply picking up the separator 4 with the picking roller 22. The adsorber 25 and the like described above are unnecessary.

Further, although the illustrated example shows the case where the film 2 is attached to one side of the substrate 1, the film 2 can be attached to both sides of the substrate 1 by providing a mechanism similar to the illustrated example at the bottom. At this time, the lower sticking roller is positioned instead of the receiving roller 12.

The cutting device of this invention can be
When attaching the edge of the film to the substrate that is being fed intermittently one by one, start attaching the film from the front edge of the substrate or slightly inside it, and place the film at the rear edge of the substrate or slightly in front of it. Since the film's I+] is narrower than the substrate's rlj, the side edges of the film on both sides should be equal to or slightly inward from both sides of the substrate. This allows the film to be attached completely automatically without protruding from the periphery of the substrate. Further, the present invention is characterized in that the film is cut while the film overlaps the separator before it is attached to the substrate. In other words, in the method of cutting the film on the rear edge of the substrate, when cutting the film, the cutter blade scratches the substrate.''3 To prevent this, making the cut of the cutter shallow makes it easier to cut the film. However, in the case of the present invention, there is no such fear at all, and since the film is cut on the separator, there is an effect that the 15J I:li of the film is reliably carried out.

[Brief explanation of drawings]

Fig. 1 is a side view of the film adhesion/cutting device of the present invention, Fig. 2 is a partially cutaway enlarged side view of the same, and Figs. 3 to 7.
The figure is a side view of each process showing the operation of the main parts, Figure 8 is a perspective view of a board with a film pasted by the device of this invention, and Figure 9 is a board with a film pasted on one side by a conventional device. FIG. 10 is a block diagram showing an example of the control means. A...Transportation means, B...Film supply means, C...
- Adhering means, D Film cutting means, E... Airflow generation means, 1... Substrate, 2... Film, 3... Adhesive layer, 4... Separator, 11... Adhesive roller , 12
...Receiving roller, 19...Cutter, 20...Canter roller Patent applicant Nitto Electric Industry Co., Ltd. Agent Sickle 1) Text 2

Claims (1)

[Claims] A substrate transport means for intermittently transporting nearly horizontal substrates one by one, a film supply means for supplying an adhesive film separated from a separator near the substrate with the adhesive layer facing the substrate, and a film supply means for transporting the supplied film. It has an adhesion roller that presses onto the substrate and adheres it, and an adhesion means consisting of a receiving roller,
A part of the film supply means is provided with a film cutting means that cuts only the film on the separator, and the substrate is inserted between the sticking roller and the receiving roller under the condition that the leading edge of the film advances between the sticking roller and the receiving roller. and a control circuit for controlling the substrate conveying means, the film supplying means, the adhering means, and the film cutting means so as to operate the cutting means to cut the film under the condition that the rear end of the substrate passes a predetermined detection position. a distance from a point CL where the outer periphery of the sticking roller of the sticking means intersects with a vertical line passing through the center of the roller to a point f of the cutter standby position of the cutting means; and a distance from the point CL to the conveying means. A film adhering and cutting device characterized in that the distances from the rear end of the substrate to the detection plate 32 are approximately equal.