JPH04129963A - Device for exfoliating cover film - Google Patents

Abstract

PURPOSE:To surely stably and automatically exfoliate a cover film so as to promote also a cost down by providing constitution such as actuating the first/ second brushes in the point of time, a plate material is detected to reach an exfoliation position, and stopping the first/second brushes in the point of time the exfoliated cover film is detected. CONSTITUTION:When a cover film exfoliating device 10 is started, a dry plate 16 is conveyed, and when an exfoliation position in a point end part is confirmed by a signal of a plate material detecting sensor 20, an exfoliating brush 22 is rotated. In this way, a cover film 18 is exfoliated, and when exfoliation is confirmed by a signal of an exfoliation detecting sensor 30, air nozzles 36, 38 are actuated to jet air and to bend the point end part in a direction of a guide plate 28, so that a transfer brush 29 is actuated and moved upward. Further, a rewinding roller 32 is actuated, and the cover film 18, whose point end part is closely attached and forcedly wound by the jetted air, is successively rewound. Next, winding is confirmed by a signal of a rewinding detecting sensor 34, and the air nozzles 36, 38 and rotation of the exfoliating brush 22 and the transfer brush 29 are stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cover film peeling device for peeling off a cover film stuck to the surface of a printing plate, a printed circuit board, or the like.

[Prior Art] Conventionally, the cover film attached to the surface of plates such as dry lithography (so-called waterless lithography) or printing boards such as printed circuit boards has been peeled off manually, which is extremely inefficient. Ta. For this reason, a peeling device that automatically peels off this cover film has been proposed (for example,
03152, JP 61-167176)
.

In the film peeling apparatus described in these publications, after once pasting a double-sided adhesive tape or single-sided adhesive tape on a cover film, this adhesive tape is pasted on a winding member and wound up, thereby removing the cover film together with the adhesive tape. It also has a structure that allows it to be peeled off. Therefore, the cover film can be automatically peeled off, and workability is also improved.

[Problems to be Solved by the Invention] However, in the above-mentioned film peeling device, adhesive tape is indispensable in any case, resulting in high cost. There were drawbacks such as the need for additional steps and increased work man-hours.

In consideration of the above facts, the present invention aims to provide a cover film peeling device that can automatically peel off a cover film reliably and stably, and can also reduce costs.

Means for Solving Problem 1] The cover film peeling device of the invention according to claim (1) comprises:
A cover film peeling device that peels off a cover film stuck to the surface of a plate material, comprising: a plate material conveying means for conveying the plate material; a plate material detection sensor that detects the plate material; and a first brush that is disposed corresponding to the tip of the plate material that has reached a peeling position and that peels off the cover film stuck to the plate material when activated. and the first
a guide member that guides the cover film peeled off by the brush; a second brush that transports the cover film guided by the guide member; and a peeling detection sensor that detects the cover film peeled off by the first brush. a take-up roller that winds up the cover film peeled off and transferred by the first and second brushes; and a take-up detection sensor that detects that the peeled cover film is taken up by the take-up roller. The first and second brushes are activated when the plate material that has reached the peeling position is detected by the plate material detection sensor, and the peeled cover film is detected by the winding detection sensor. The present invention is characterized by comprising a control means for stopping the first and second brushes at a certain point in time.

The cover film peeling device of the invention according to claim (2) comprises:
In the cover film peeling device according to claim (1),
The present invention is characterized by comprising an alarm means for issuing an alarm when the peeling detection sensor does not detect the cover film within a predetermined time after the plate material detection sensor detects the plate material.

The cover film peeling device of the invention according to claim (3) comprises:
In the cover film peeling device according to claim (1) or claim (2), the control means causes the peel detection sensor to detect the cover film within a predetermined time after the plate material detection sensor detects the plate material. If not, the plate material conveying means is stopped, reversed to return the plate a predetermined distance, and then the plate material conveying means is rotated forward again to repeat the cover film peeling operation.

[Function] In the cover film peeling device according to claim (1), when the plate material being conveyed reaches the peeling position, the first brush is operated by the control means, and the cover film stuck to the plate material is peeled off. be done. The peeled cover film at the leading end of the plate material is transported by the second brush while being guided by the guide member, and is taken up by the take-up roller. Thereafter, the cover film is sequentially peeled off as the plate material is transported.

In this way, since the cover film is peeled off by the first and second brushes, other members such as adhesive tapes and the process of pasting them are not necessary, making it possible to peel off reliably and stably and reducing costs. You can also aim for

In the cover film peeling device according to claim (2), if the plate material to be conveyed reaches the peeling position and the bar film is not peeled off, the alarm means issues an alarm, thereby preventing other malfunctions. There is no possibility of it being triggered.

In the cover film peeling device according to claim (2), since the peeling operation is repeated until the cover film stuck to the plate material is reliably peeled off, the cover film can be reliably peeled off.

[Example] The present invention will be explained in detail below.

FIG. 1 shows a schematic overall configuration diagram of a cover film peeling device 10 according to the present invention. Also, in Figure 2, the first
An enlarged view of the main parts is shown, and FIG. 3 is a plan view corresponding to FIG. 2.

In the cover film peeling device 10, a plurality of conveyance rollers 14 as plate material conveyance means are arranged in a row on a machine stand 12, and a dry planographic plate 16 as a plate material is moved in the direction of the arrows in FIGS. 1 to 3. Can be transported. The dry lithographic plate 16 is a so-called waterless lithographic plate used for planographic printing, etc., and a cover film 1 is coated on the surface.
8 is attached. A plate material detection sensor 20 is arranged approximately at the center of the machine stand 12 corresponding to the peeling position of the cover film 18. The plate material detection sensor 20 detects the dry planographic plate 1 that has been transported by the transport roller 14 and has reached the peeling position.
6 can be detected, and is connected to a control device 40, which will be described later.

Moreover, a peeling brush 22 as a first brush is arranged above the peeling position. The stripping brush 22 is made of nylon and is rotated in the direction of arrow B in FIG. 2 by the operation of a driving source. This peeling brush 22 can come into contact with the dry planographic plate 16 that has reached the peeling position. For this reason,
When the dry lithographic plate 16 is transported to the peeling position as the peeling brush 22 rotates, the peeling brush 22 directly contacts the tip of the dry lithographic plate 16 and can peel off the adhered cover film 18. This peeling brush 22 (driving source) is also connected to the control device 40.

A peeling detection sensor 30 is arranged near the peeling brush 22 and at a position facing the peeling brush 22. The peeling detection sensor 30 is capable of detecting the tip of the cover film 18 peeled off by the peeling brush 22, and is connected to the control device 40 similarly to the plate material detection sensor 20.

Further, a guide plate 28 as a guide member is arranged near the peeling brush 22 and on the upstream side in the conveying direction of the dry planographic plate 16. The lower end of the guide plate 28 is connected to the peeling brush 22.
It corresponds to the peeling position according to the present invention, and is inclined at a substantially right angle to the upstream side in the conveying direction of the dry planographic plate 1G. For this reason, the cover film 1 peeled off by the peeling brush 22
The tip end of the guide plate 8 is folded back at a substantially right angle and guided by the guide plate 28.

A transfer brush 29 serving as a second brush is arranged at a position facing the intermediate portion of the guide plate 28 . The transfer brush 29 is also made of nylon and is rotated in the direction of arrow B in FIG. 2 by the operation of the drive source. This transfer brush 29
is adapted to transport the cover film 18 peeled off by the peeling brush 22 upward along the guide plate 28.

The transfer brush 29 (drive source) is also connected to the control device 40.

A take-up roller 32 is arranged near the upper end of the guide plate 28 . The take-up roller 32 is peeled off and the guide plate 28
The conveyed cover film 18 is wound up while being guided by. This winding roller 32 is also connected to the control device 40.

A winding detection sensor 34 is arranged above the winding roller 32. The winding detection sensor 34 is capable of detecting the cover film 18 being wound up by the winding roller 32, and is connected to the control device 4o similarly to the plate material detection sensor 20 and the peeling detection sensor 30.

An air nozzle 36 and an air nozzle 38 are arranged directly above the peeling brush 22 and between the take-up roller 32 and the guide plate 28, respectively.

The air nozzle 36 has the function of forcibly folding back the tip of the cover film 18 peeled off by the peeling brush 22 toward the guide plate 28 by jetting air. The air nozzle 38 also forcibly winds the tip of the cover film 18, which has been guided by the guide plate 28 and has reached the upper end of the guide plate 28, around the take-up roller 32 by injecting air. It has a role.

These air nozzles 36, 38 are also connected to the control device 40.

As shown in FIG. 4, the control device 4o includes a central processing unit (C
PU) 42, read-only memory (ROM) 44, random access memory (RAM) 46, human port 4
8. Output port 50 and the data bus, control bus, etc. connected to these ■ Novus 52
It is composed of: The plate material detection sensor 20 , peeling detection sensor 30 , and winding detection sensor 34 are connected to the manual port 48 .

On the other hand, a peeling brush 22, a transfer brush 29, a winding roller 32, and air nozzles 36 and 38 are connected to the output capo 50 via respective drive circuits.

Further, a warning light 54 is connected to the output capo 50. A central processing unit (CPU) 42 controls each device by controlling each drive circuit. A read-only memory (ROM) 44 is pre-stored with a control routine program to be described later.

Next, the operation of this embodiment will be explained according to the flowchart shown in FIG.

When the cover film peeling device 10 is started, Step 1
At 00, the dry planographic plate 16 is transported by the transport roller 14 in the forward direction within the machine stand 12 (in the direction of the arrows in FIGS. 1 to 3). Further, in step 102, it is determined based on the signal from the plate material detection sensor 20 whether or not the leading end of the dry planographic plate 16 has reached the peeling position.

When the tip of the dry lithographic plate 16 reaches the peeling position in step 102, the process proceeds to step 104, where the peeling brush 22
rotates. As a result, the peeling brush 22 is attached to the dry lithographic plate 1.
The attached cover film 18 is peeled off by directly contacting the tip of the cover film 6 .

Next, in step 106, the process waits for a predetermined time to elapse, and after the predetermined time has elapsed, the process proceeds to step 108, where it is determined whether the cover film 18 at the tip of the dry lithography plate 16 has been peeled off based on the signal from the peel detection sensor 30. be done.

When peeling of the cover film 18 is confirmed in step 108, the process proceeds to step 110, and the air nozzle 36.3
8 is activated and air is injected.

As a result, the tip of the cover film 18 peeled off by the peeling brush 22 is bent toward the guide plate 28 . Furthermore, the transfer brush 29 is operated in step 112, and the peeled off cover film 18 is transferred to the transfer brush 29.
A conveying force is applied to the guide plate 28, and the guide plate 28 moves the guide plate 28 upward.

Furthermore, in step 114 the take-up roller 32 is actuated. As a result, the tip of the cover film 18 that has been guided by the guide plate 28 and has reached the upper end of the guide plate 28 is brought into close contact with the winding roller 32 by the air jetted from the air nozzle 38, and is forcibly wound around the winding roller 32. It is wound up.

Next, in step 116, it is confirmed based on the signal from the winding detection sensor 34 that the leading end of the cover film 18 has been wound. Further, the process proceeds to step 118, where the air nozzles 36, 38 are stopped, and further, step 120.
At , the rotation of the peeling brush 22 and the transfer brush 29 is stopped.

Thereafter, the cover film 18 is sequentially and automatically peeled off by the conveyance of the dry lithography plate 16 and the rotation of the take-up roller 32.

On the other hand, if peeling of the cover film 18 is not confirmed in step 108, the process proceeds to step 122, where the warning light 54 is turned on and an alarm is issued.

Further, the peeling brush 22 is stopped in step 124, and the conveyance of the dry lithography plate 16 by the conveyance roller 14 is stopped in step 126, thereby terminating the process.

In this way, when the tip of the dry lithography plate 16 being transported is detected, the peeling brush 22 is activated to remove the cover film 1.
Since the cover film 8 is peeled off, there is no need for adhesive tape or the like to be used for peeling off, which can reduce costs, and the process of attaching adhesive tape or the like to the cover film 18 is also no longer necessary, which increases the number of work steps. Nor.

Further, if the cover film 18 at the tip of the dry lithographic plate 16 is not peeled off, the work is stopped after the warning light 54 issues a warning, thereby eliminating the possibility of causing other problems. In this case, a configuration may be adopted in which the alarm is issued by an alarm sound.

Note that in the processing step, an alarm is issued if peeling of the cover film 18 is not confirmed in step 108, but other processing may be performed in this case.

For example, in the control routine shown in FIG.
If the cover film 18 is not peeled off at step 8, the process proceeds to step 130, where the dry planographic plate 16 is transported in the opposite direction by a predetermined amount (for example, 2 to 3 cm) by the transport roller 14. After that, the process returns to step 100 and the above-described steps are repeated. Therefore, in this case, the peeling operation is repeated until the cover film 18 stuck to the dry lithographic plate 16 is reliably peeled off, so that the cover film 18 can be reliably peeled off.

In the above embodiments, the dry lithographic plate 16 (so-called waterless lithographic plate) was used as the plate material to which the cover film 18 was attached, but the present invention is not limited to this. It can also be applied to other plate materials such as printed circuit boards and other plate materials without any payment.

[Effects of the Invention] As explained above, the cover film peeling device according to the present invention can reliably and stably automatically peel off the cover film stuck to the surface of a plate material such as a dry lithographic plate. This also has the effect of reducing costs.

[Brief explanation of the drawing]

FIG. 1 is a schematic overall configuration diagram of a cover film peeling device according to an embodiment of the present invention, FIG. 2 is an enlarged view of main parts of FIG. 1 showing a peeling brush and parts in its vicinity, and FIG. The corresponding plan view, FIG. 4 is a block diagram of the control device, FIG. 5 is a flowchart showing a control routine, and FIG. 6 is a flowchart showing another example of the control routine. DESCRIPTION OF SYMBOLS 10... Cover film peeling device, 14... Conveyance roller (plate material conveyance means), 16... Dry lithography (plate material), 18... Cover film, 20... Plate material detection sensor, 22 ... Peeling brush (first brush), 29... Transfer brush (second brush), 30... Peeling detection sensor, 32... Winding roller, 34... Winding detection sensor,・Control device (control means)

Claims (3)

[Claims] (1) A cover film peeling device that peels off a cover film stuck to the surface of a plate material, comprising: a plate conveyance means for conveying the plate material; and a peeling of the cover film conveyed by the plate conveyance means. a plate material detection sensor that detects the plate material that has reached the position; and a plate material detection sensor that is disposed corresponding to the tip of the plate material that has reached the peeling position, and is activated to peel off the cover film stuck to the plate material. a guide member that guides the cover film peeled off by the first brush; a second brush that transports the cover film guided by the guide member; and a second brush that transports the cover film guided by the guide member; a peeling detection sensor that detects the removed cover film; a take-up roller that winds up the cover film peeled and transferred by the first and second brushes; and a take-up roller that winds up the peeled cover film with the take-up roller. a take-up detection sensor that detects that the cover film has been peeled off; and when the plate material that has reached the peeling position is detected by the plate material detection sensor, the first and second brushes are actuated and the peeled off cover film is removed. A cover film peeling device comprising: control means for stopping the first and second brushes at a time point detected by the winding detection sensor. (2) The apparatus according to claim (1), further comprising an alarm unit that issues an alarm when the peeling detection sensor does not detect the cover film within a predetermined time after the plate material detection sensor detects the plate material. cover film peeling device. (3) The control means is configured to stop and reverse the plate material conveying means if the peeling detection sensor does not detect the cover film within a predetermined time after the plate material detection sensor detects the plate material. The cover film peeling device according to claim (1) or claim (2), wherein after returning the plate material by a predetermined distance, the plate material conveying means is rotated in the normal direction again to repeat the peeling operation of the cover film. .