JP3442578B2 - Composite film peeling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite film peeling apparatus for use in various devices that require peeling of the release sheet from the base sheet, with respect to the composite film in which the release sheet is adhered to the base sheet.

[0002]

2. Description of the Related Art Conventionally, in an image recording apparatus for plate making,
An unexposed film was pulled out from a long film wound in a roll shape, an unexposed film of a predetermined length was mounted on the outer peripheral surface of the drum, and a latent image was formed by irradiating with laser light and exposing. The exposed film is sequentially wound, and a large number of the wound exposed films are caused by an automatic developing device provided separately from the image recording device, and a large number of plate-making films are produced by one development.

For this reason, the film exposed by the image recording apparatus must be carried to the automatic developing device and then charged into the automatic developing device to be developed so as not to be exposed to external light. It was complicated and forced to reduce productivity.

Therefore, in recent years, composite films which do not require a developing process have been provided. That is, in FIG.
As shown in (A), the composite film 1 for image recording is
The base sheet 3 on which the color material layer 2 is formed, and the release sheet 5 which is separably adhered to the color material layer 2 via the adhesive layer 4, the release sheet 5 is It is customary to have a small thickness.

When the composite film 1 is exposed, the color material layer 2
Among them, the coloring material portion irradiated with the laser light loses the binding force with the base sheet 3, and as shown in FIGS. 17 (B) and (C),
As the release sheet 5 is released, it is removed from the base sheet 3 together with the adhesive layer 4. In this way, the base sheet on which the image information is recorded, that is, the image forming sheet 7 (image recording film) is obtained. There is also a composite film of a type in which a portion of the color material layer 2 irradiated with laser light acquires a binding force with the base sheet 3, and in this case, it is peeled off from the base sheet 3 together with the release sheet 5. Is a color material portion that was not irradiated with laser light.

[0006]

The above-mentioned composite film is also usually provided in the form of a roll-shaped long film, and an operation of exposing an image on the composite film cut to an appropriate length as in the conventional case. Is continuously performed, and after exposure, it is usually handled as a rectangular sheet-shaped composite film 1.

In order to obtain a desired image-forming sheet, it is necessary to peel off the unnecessary sheet from the square sheet-shaped composite film 1 after exposure, but in an image recording apparatus using the composite film. , Composite film after exposure 1
In reality, the means for efficiently peeling and removing the unnecessary sheet has not been established yet.

The present invention has been made in view of the above problems, and an object thereof is to provide a peeling device for efficiently peeling and removing an unnecessary sheet from a composite film used for image recording or the like.

[0009]

According to a first aspect of the present invention, there is provided a peeling device for a composite film, which is a composite film for peeling a release sheet from a base sheet to a composite film in which the release sheet is adhered to the base sheet. A peeling device for a film, comprising a tip peeling device for peeling the tip of a composite film, and holding each tip of the base sheet and peeling sheet of the composite film peeled by the tip peeling device. An overall peeling device for peeling the sheet . Well
In addition, the tip portion peeling device bends the composite film.
So that the release sheet locally peels off at the bend
A support having an insertable gap for peeling, and peeling the support.
The tip of the composite film conveyed over the separation gap is bent
Insert it into the peeling gap in the state of
It is characterized in that it is provided with an inserting means for hanging it in the gap .

According to this peeling device, after peeling the front end portion of the composite film by the front end peeling device, the whole peeling device holds the peeled base sheet and the front end portion of the peeling sheet to peel the whole composite film. Therefore, even a composite film having a strong adhesive force can be surely and easily peeled with a very small peeling force, and by extension, the peeling device can be made compact and low power consumption can be achieved. Also before
Carry it on the peeling gap of the support table with the tip peeling device.
For exfoliation with the tip of the sent composite film bent
Insert it into the gap and let the tip end hang down in the peeling gap.
By doing so, the local peeling that occurs at the bent portion
Spread over the entire edge and easily strip the leading edge of the composite film.
Can be separated. In addition, the tip peeling device supports
The structure of the device is simple, as long as a base and insertion means are provided.
It

[0011]

Further, the whole peeling apparatus of the invention according to claim 2 is provided with a pair of sucker rollers for feeding the composite film to the downstream side while sandwiching the composite film, and the outer peripheral surface of each sucker roller is a base sheet or a peeling member of the composite film. A suction cup member for removably adsorbing each tip of the sheet is attached along the axial direction of the roller. The suction cup is used for peeling the composite film and conveying the base sheet and the release sheet in a predetermined direction after peeling. This can be performed at the same time by releasing the suction of the members, and the peeling device can be made more compact and simpler.

According to a third aspect of the present invention, there is provided an entire peeling apparatus which comprises a pair of feed rollers for feeding the composite film to the downstream side while sandwiching the composite film, and a feed roller on the release sheet side for adhering to the release sheet of the composite film. And a winding means for winding the adhesive tape wound around the
At the same time that the release sheet is peeled off, the release sheet can be collected and the collected release sheet can be easily discarded.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION In describing the peeling apparatus for a composite film of the present invention, first, the overall structure and flow of the composite film will be described by taking an image recording apparatus using the peeling apparatus as an example.

FIG. 16 is a block diagram of an image recording apparatus using a long composite film, in which the unexposed composite film 1A wound in a roll shape is conveyed by rollers 102, 102, 103.
The composite film 1A is pulled out by the 103 and sent out, the composite film 1A is cut into an appropriate length by the film cutter 105 according to the exposure drum or the image size, and the cut composite film is exposed through the squeegee roller 108 to the exposure drum 1
Wrap it tightly around the outer peripheral surface of 04. Exposure drum 10
The composite film wound around 4 is the exposure drum 104.
Vacuum suction is performed by a large number of air intake holes provided on the outer peripheral surface of the exposure drum 104, and the outer peripheral surface of the exposure drum 104 is closely fixed.

Then, while rotating the exposure drum 104, laser light is emitted from the optical unit 107 to expose the composite film on the exposure drum 104. The exposure drum 104 has a groove formed in the outer peripheral surface thereof into which the tip of the peeling claw 109 is inserted. After the composite film is exposed, the groove is formed on the outer peripheral surface of the exposure drum 104 between the front end and the rear end of the composite film. The tip of the peeling claw 109 is inserted into the exposed groove, and the composite film 1 is peeled from the exposure drum 104 while rotating the exposure drum 104, and sent to the peeling device 111 of the present invention via the transport guide 110.

The exposed composite film 1 is peeled off the release sheet 5 from the base sheet 3 by the release device 111 according to the present invention to obtain an image forming sheet 7 having the coloring material portion fixed on the base sheet 3 side. Upper tray 1 of image recording device
It is discharged to 13. On the other hand, the release sheet 5 is put into the collection area 114 and collected as appropriate.

The peeling apparatus of the present invention, as shown in FIG.
A pair of transport rollers 11, 1 for sandwiching and transporting a rectangular sheet-shaped composite film 1 cut into a predetermined length.
1A (conveying means), a tip portion peeling device 12 for peeling the tip portion of the composite film 1 conveyed by the conveying rollers 11, 11A, and a substrate of the composite film 1 peeled by the tip portion peeling device 12 Sheet 3 and release sheet 5
And a whole peeling device 13 for peeling the whole composite film 1 while holding the respective tip portions thereof. In the following description, for convenience of explanation, the release sheet 5 will be described as the upper side in the drawings.

The conveying rollers 11 and 11A are arranged so that the composite film 1 can be sandwiched between the conveying rollers 11 and 11A at their outer peripheral surface facing portions.
One (lower side in the illustrated example) transport roller 11 has a fixed rotation shaft installation position, and the other transport roller 11A has its rotation axis radially movable in the plane of the drawing relative to the fixed-side transport roller 11. And the fixed side transport roller 1
It is biased to the 1 side by a spring and its own weight. The fixed conveying roller 11 is driven by a rotation driving means such as a motor so as to be able to stop forward and reverse rotation, and in this case, the other conveying roller 1
1A is driven to rotate via the composite film 1. Of course,
In order to reliably convey the composite film 1, a gear or a belt conductive member is used to transfer the rotation from the drive-side transport roller 11 to the driven-side transport roller 11A.
It may be attached to 1, 11A. The transport rollers 11,
On the outer peripheral surface of 11A, a lining layer may be formed by coating with a material such as rubber that is easily elastically deformed and has a large friction coefficient.

The tip end peeling device 12 comprises a conveying roller 1
It is installed on the downstream side of 1, 11A and bends the composite film 1.
In this state, the release sheet will peel off locally at the bend.
A support base 20 having a sea urchin insertable stripping gap 21,
The tip of the composite film 1 conveyed in a state of straddling the peeling gap 21 is inserted into the peeling gap 21 in a bent state.
However, it is provided with an insertion mechanism portion 22 (insertion means) for suspending the tip end portion into the peeling gap, and the support base 20 extends toward the conveyance rollers 11 and 11A side and the insertion mechanism portion 22 side. The provided transport guides 23, 24 are attached.

The insertion mechanism portion 22 has an insertion blade 26 for inserting the tip of the composite film 1 into the peeling gap 21 in a bent state, and the insertion blade 26 is attached to the upper portion of the insertion blade 26 and rotates. A swing member 28 for moving the tip of the insertion blade 26 forwards and backwards into the peeling gap 21 by swinging about the shaft 27, and a link mechanism for swinging the swing member 28 around the swing shaft 27. 29, and a drive motor 30 having a rotation stop function for swinging the swing member 28 via the link mechanism 29, the link mechanism 29 being an arm member 32 fixed to an output shaft of the drive motor 30. And a link plate 33 having one end pivotally attached to the arm member 32 and the other end pivotally attached to the lower portion of the swing member 28.

In the whole peeling device 13, the tip ends of the base sheet 3 and the peeling sheet 5 of the composite film 1 peeled by the tip portion peeling device 12 are sucked by a large number of suction cup members 50 arranged in the roller axial direction. A pair of sucker rollers 40, 40A for sandwiching and peeling between the rollers while holding is provided, and the delivery side of the sucker rollers 40, 40A is brought into contact with the outer peripheral surfaces of the sucker rollers 40, 40A in a pressed state, Pressing rollers 42, 42A that are driven to rotate in accordance with the rotation of the suction roller 40, 40A are provided.
The base sheet 3 and the release sheet 5 are provided on the delivery side of 42A.
The transport guides 43 and 43A for guiding the sheet to the downstream side are provided. The pressing rollers 42 and 42A have suction shaft rollers 40 and
By energizing the A side, it is possible to press the outer peripheral surfaces of the suction cup rollers 40, 40A.

The suction roller 40 on one side (lower side in the drawing) has its rotary shaft installed at a fixed position, and the suction roller 40A on the other side (upper side in the drawing) is a composite film with respect to the suction roller 40 on the fixed side in the plane of the drawing. 1 is supported so as to be able to be sandwiched between the rollers so as to be slightly moved toward and away from each other, and the moving-side suction roller 40A is biased toward the fixed-side suction roller 40 side by a spring or its own weight.

As shown in FIG. 2, the suction roller 40, 40A has a pipe pipe 53 hermetically installed inside a roller cylinder 52 provided between the left and right end plates 51, 51. A large number of suction cup members 50 are connected in the roller axial direction, and the tip end suction portion 55 is slightly exposed from the outer peripheral surface of the opening formed in the roller tubular body 52. Roller shafts 57, 5 provided on the end plates 51, 51
7, bearings 58, 58 for rotatably supporting the sucker rollers 40, 40A are mounted, and a gear 60 for transmitting rotation in the opposite direction is attached to the other sucker roller, and a rotary hose joint is provided at the end thereof. 61 and 61 are connected. Further, the illustrated fixed-side suction roller 40 is provided with a pulley 59 for rotational driving. The roller shafts 57, 5
An intake passage communicating with the rotary hose joints 61, 61 and the vacuum chamber 62 in the pipe 53 is formed inside the rotary hose joints 61, 61. The rotary hose joints 61, 61 are vacuum solenoid valves and vacuum tanks (not shown). It is connected to the vacuum pump through a pipe. The suction roller 40, 40A may also have a lining layer formed on the outer peripheral surface of the suction roller 40, 40A with a material such as rubber having a large friction coefficient.

Next, the operation of each part of the peeling device of the present invention will be described.

The exposed composite film 1 is, as shown in FIG.
When the front end of the composite film 1 reaches the position where it crosses the peeling gap 21 of the support 20, the transfer rollers 11,
Stop 11A. The tip position of the composite film 1 is detected by using an appropriate detector such as a photo sensor.

Next, as shown in FIG. 4, the oscillating member 22 is oscillated around the oscillating shaft 27 by the driving of the drive motor 30, so that the insertion blade 26 is positioned above the separating gap 21 (reference position). ), The tip of the insertion blade 26 is inserted into the peeling gap 21 while bending the tip of the composite film 1. At this time, as shown in FIG. 5, the state of the leading end of the composite film 1 is such that the upper release sheet 5 is bent in a wavy shape inside the base sheet 3 in which the upper release sheet 5 is bent in a U shape, and is partially peeled off. Become. Then, as the insertion blade 26 further descends, the peeled portion spreads toward the tip side, the insertion blade 26 descends to the lowest point, and at the time when the tip portion of the composite film 1 falls completely into the peeling gap 21, As shown in FIG. 6, the front end of the composite film 1 hangs down in the peeling gap 21 in a completely peeled state.

Thereafter, the swinging member 28 is swung to raise the insertion blade 26 to the reference position, and as shown in FIG. 7, the transport rollers 11 and 11A are reversed to peel the front end of the composite film 1. Pull up from the gap 21. To return the insertion blade 26 to the reference position, the arm member 3
2 and the reference position of the swinging member 28, the drive motor 3 is detected.
The number of output pulses may be controlled when the motor capable of controlling the rotational position such as a pulse motor is used. Further, the timing of stopping the reverse rotation of the transport motors 11 and 11A may be determined by detecting that the leading end of the composite film 1 has been pulled up from the peeling gap 21 by the detector and stopping the drive motor. You may stop after a time.

The tip of the composite film 1 has a peeling gap 21.
After being further pulled up, as shown in FIG. 8, the transport rollers 11 and 11A are rotated in the forward direction to transport the composite film 1 from which the leading end is stripped to the entire stripping device 13 side. At this time, since the base of the transport guide 24 on the upstream side of the support 20 is set to be slightly higher than the surface of the support 20, the composite film 1
Does not enter the peeling gap 21.

The exfoliation of the front end of the composite film is caused by the difference in thickness between the base sheet and the exfoliation sheet, the waist (stiffness), the difference in curvature between the inside and outside of the bent portion, and the like.
As in the illustrated example, the release sheet 5 having a smaller thickness than the base sheet 3 is not limited to the case where the release sheet 5 comes inside the bend.
It has been confirmed by the present inventor that good peeling can be obtained even when is inside the bend.

When the front end of the composite film 1 is peeled off, the suction roller 40, 40A of the whole peeling device 13 is
The suction cup members 50 of the suction cup rollers 40 and 40A are stopped in a state in which they are rotated slightly upstream from the state where they face each other. Note that this position is the reference position of the suction cup member 50 (see FIG. 7). Then, the tip of the composite film 1 is peeled off,
When it is conveyed to the entire peeling device 13 side and the tip thereof reaches the vicinity of the suction roller 40, 40A as shown in FIG. 8, the vacuum solenoid valve is opened to operate the vacuum chamber 62 in the piping pipe 53 (FIG. 2). (Refer to) and the suction rollers 40 and 40A start rotating. The arrival of the composite film 1 is detected by an appropriate detector, and the signal controls the vacuum solenoid valve and the suction roller driving motor.

At this time, the peripheral speed of the sucker rollers 40, 40A and the conveying speed of the composite film 1 are set to be substantially the same, and the tip of the composite film 1 is located at the portion where the outer peripheral surfaces of the sucker rollers 40, 40A are closest to each other. When passing, the tip ends of the base sheet 3 and the release sheet 5 are sucked and held by the tip suction portion 55 of the suction cup member 50, as shown in FIG. Note that vacuum suction may be started at this point.

Further, as shown in FIG. 10, the suction roller 4
The base sheet 3 and the release sheet 5 of the composite film 1 are peeled off from each other by the rotation of 0, 40 A and are conveyed in the roller rotation direction. Then, as shown in FIG. 11, the tip ends of the base sheet 3 and the release sheet 5 are pressed by the pressing roller 4.
After passing 2, 42 A, the vacuum solenoid valve is closed to release the vacuum suction. The adsorption release timing is detected by an appropriate detector when the tip of the base sheet 3 and / or the release sheet 5 has passed the pressing rollers 42, 42A,
Alternatively, the vacuum solenoid valve may be controlled by detecting the rotational position of the suction roller 40, 40A or by controlling the time from the start of rotation of the suction roller 40, 40A.

The suction cup rollers 40 and 40A continue to rotate even after the suction is released. Even if the adsorption of the base sheet 3 and the release sheet 5 is released, the release sheet 5 is conveyed to the respective collecting areas by the pressing roller 42A and the suction roller 40A, and the base sheet 3 is conveyed by the pressing roller 42 and the suction roller 40 toward their respective collecting areas. Therefore, the release of the release sheet 5 from the base sheet 3 is continued even after the adsorption is released.

After the base sheet 3 and the release sheet 5 are discharged into the respective conveyance guides 43, 43A, suction cup rollers 40, 4
0A rotates to the reference position of the suction cup member 50, stops there, and waits until the next composite film 1 is conveyed. The timing of stopping the suction roller 40, 40A is determined by detecting the discharge of the base sheet 3 or the release sheet 5 by an appropriate detector, or after a lapse of a predetermined time from the start of rotation of the suction roller 40, 40A. It is sufficient to detect that 40, 40A have reached the reference position and stop the drive motor for the suction roller 40, 40A in response to the detection signal.

As another usage of the whole peeling device 13,
After the suction of the front end of the composite film 1 by the suction member 50 is started, until the entire length of the composite film 1 is completely peeled off,
Adsorption is continued, the base sheet 3 and the release sheet 5 are once wound around each of the suction cup rollers 40 and 40A, and then the suction cup rollers 40 and 40A are reversely rotated to be rewound and discharged to the conveyance guides 43 and 43A side. You may do it.
In this case, the pressing rollers 42 and 42A are preferably rotatable.

By the way, when a new composite film wound in a roll shape is installed in the image recording device, it is possible to cut a few tens of cm of the leading end portion of the film, which is easily soiled on the outer circumference, in advance and discharge it without image recording. Done. In this case, the suction member 5 of one of the suction cup rollers is conveyed when the cut composite film is conveyed to the entire stripping device 13 without being operated by the tip end stripping device 12 and sent to the downstream side by the suction cup rollers 40 and 40A.
It is only necessary to operate only 0 and suck the tip of the composite film by the suction cup member 50, and discharge the composite film to the required conveyance guide side.

In the overall peeling device 13, the suction roller 4
Since 0 and 40 A are used, the peeling of the composite film 1 and the conveyance of the base sheet 3 and the peeling sheet 5 after peeling in a predetermined direction can be performed at the same time by the suction release of the suction cup member 50, and the peeling device is compact. And the structure can be simplified.

In the above embodiment, in the insertion mechanism portion 22 of the tip end peeling device 12, the insertion blade 26 advances and retreats into the peeling gap 21, the rotary motion of the drive motor 30 passes through the link mechanism 29, and the swing member. Although it is realized by swinging 28, the insertion blade 26 is not limited to advance and retreat by such means. For example, a fluid pressure cylinder or a rack and pinion mechanism for converting the rotational movement of the pinion into the linear movement of the rack is used. The blade 26 may be directly moved back and forth.

Further, in the above embodiment, the whole peeling device 1 is used.
In the suction cup rollers 40, 40A of No. 3, the suction cup member 50 was connected to the piping pipe 53 provided in the roller tubular body 52, but as shown in FIG. 12, the suction plate was attached to the support plate 65 provided between the end plates 51, 51. The member 50 may be connected, and vacuum hoses may be directly connected to the suction member 50 through the intake ports of the end plates 51, 51. In the illustrated example, since the left and right end plates 51, 51 are piped through the two intake paths 66, 67, two systems of vacuum pressure can be used, and the size and weight of the composite film 1 can be changed. Thus, the suction operation can be performed using either one or both of the intake paths.

Further, in the above embodiment, the tip suction portion 55.
Shows the suction cup rollers 40 and 40A in which a plurality of circular suction cup members 50 are arranged in a row in the roller axial direction, but one or more suction cup members whose tip suction portion is opened in a slit shape in the axial direction may be used.

FIG. 13 shows another embodiment, in which members having the same functions as those in the previous embodiment are designated by the same reference numerals,
In particular, the whole peeling device is different from the previous embodiment, and therefore the description will be focused on this device.

Whole peeling device 13A in this embodiment
Is a pair of feed rollers 70 and 70A which are installed on the downstream side of the tip portion peeling device 12 and which sandwich the composite film 1 between the roller facing portions and send it to the downstream side, and one of the adhesive tape 71A wound in a roll shape. Or a tape holding means 72 for holding a plurality of tapes, and a winding means 73 for winding the adhesive tape 71 unwound from the tape holding means 72 and wound around the feed roller 70 on the release sheet 5 side. A conveyance guide 74 is installed downstream of the feed rollers 70 and 70A. Incidentally, auxiliary conveying rollers 75, 75A (conveying means) may be additionally provided on the downstream side of the feed rollers 70, 70A. The feed rollers 70 and 70A, the auxiliary transport roller 7
Reference numerals 5 and 75A have the same configuration as that of the transport rollers 11 and 11A.

As the tape holding means 72, for example, a mounting shaft 76 on which a paper tube, which is a core of a roll-shaped adhesive tape 71A, can be freely rotatably mounted is sufficient. Further, the winding means 73 may be provided with a winding shaft 77 that is torque-controllable and can be stopped rotating, which is connected to an appropriate drive source such as a torque motor. By attaching and fixing the used paper tube of the roll-shaped composite film to the take-up shaft 77, the release sheet and the adhesive tape after the take-up can be discarded together with the paper tube. No need to prepare. A plurality of adhesive tapes 1 each having a small width may be installed along both side edges and the central portion of the composite film 1, or one tape having a half width of the composite film 1 may be used.

Whole peeling apparatus 13A in this embodiment
The operation of will be described.

The feed rollers 70, 70A are kept until the composite film 1 having the tip portion peeled by the tip portion peeling device 12 arrives at a position near the upstream side of the feed rollers 70, 70A.
The adhesive tape 71 is on standby in a wound state.
Then, as shown in FIG. 13, when the composite film 1 arrives at a predetermined position, the operation of the feed rollers 70, 70A and the winding means 73 is started.

The front end of the composite film 1 is a feed roller 70,
When it is sent to the facing portion of 70A and is sandwiched between the rollers, the release sheet 5 becomes an adhesive tape 7 as shown in FIG.
The adhesive tape 1 is adhered to the base sheet 1 and is peeled off from the base sheet 3, and is taken up by the take-up means 73 together with the adhesive tape 71. On the other hand, the base sheet 3 is transported to the downstream side, and when the auxiliary transport roller 75 is provided, it is sandwiched and transported by the auxiliary transport roller 75. By this operation, the composite film 1 is peeled off over the entire range.

After confirming that the base sheet 3 or the release sheet 5 has been discharged from the feed rollers 70 and 70A, the operation of the feed rollers 70 and 70A and the winding means 73 is stopped, and the next composite film 1 is conveyed. Wait in that state until you come. The release sheet 5 wound by the winding means 73 via the adhesive tape 71 can be removed from the winding shaft 77 and discarded as it is when the predetermined winding diameter is reached. According to the whole peeling device 13A, the peeling sheet 5 can be easily collected and discarded at the same time when the composite film 1 is peeled off, and a large space area for collecting the peeling sheet 5 is unnecessary.

Since it is easy to peel the whole of the composite film 1 after peeling off the front end thereof, the whole peeling device is not limited to the above-mentioned form, but various structures can be adopted. For example, as shown in FIG. 15, the whole peeling device 13B is provided on the downstream side of the tip portion peeling device 12,
A conveyor 81 having a plurality of rows of conveyor belts 80,
A peeling arm 84 having a rotary shaft 83 is provided above the upstream end of the conveyor 81. The peeling arm 84
A large number of suction cup members 50 are arranged in a row along the width of the conveyor at the tip of the conveyor, facing the downstream end of the conveyor 81. In addition, a plurality of suction cup members 50 are arranged between the conveyor belts 80, and the tip suction portions 55 thereof are exposed on the surface of the conveyor belt.

According to this peeling device, the tip end peeling device 1
The composite film 1 from which the leading end is peeled off by 2 is transported to the downstream side by the transport conveyor 81, and when the leading end of the composite film 1 reaches the downstream end of the transport conveyor 81,
The conveyance is stopped, and the lower surface of the composite film 1, that is, the substrate sheet 3 is vacuum-sucked by the suction cup member 50 on the side of the conveyance conveyor 81. Then, the peeling arm 84 is rotated to the composite film 1 side, and the suction cup member 5 attached to the tip portion thereof.
When the upper surface of the front end portion of the composite film 1, that is, the release sheet 5 is sucked by 0, the release arm 84 is rotated in the opposite direction, and the release sheet 5 is released from the base sheet 3.

After that, the suction cup member 5 on the side of the conveyer 81
The adsorption of 0 is released and the conveyor 81 is activated to convey the base sheet 3 to the downstream side. After the base sheet 3 is discharged from the conveyor 81, the conveyor 81 is stopped,
When the peeling arm 84 is returned to the reference position and the suction is released,
The release sheet 5 is stacked on the transfer conveyor 81, and the release sheet 5 is transferred to the downstream side by restarting the transfer conveyor 81. A branch guide 86 is provided on the downstream side of the transport conveyor 81, and the base sheet 3 and the release sheet 5 can be transported to a desired area by switching the direction of the branch guide.

The peeling device of the present invention is not limited to being attached to the above-mentioned image recording device, and the composite film in which the base sheet and the peeling sheet are releasably adhered regardless of the presence or absence of the coloring material layer in the composite film. It can be applied to various devices that require the release sheet to be peeled off.

[0053]

According to the peeling device of the first aspect of the invention, the composite film can be peeled with a very small force, and the peeling device can be made compact and the power consumption can be reduced. Also, a support base having a predetermined separation gap.
By using a tip peeling device equipped with
Insert the tip of the composite film into the peeling gap in a bent state.
Easy insertion of the composite film by simply inserting and hanging
Can be peeled off. Further, the tip portion peeling device,
The structure of the device is simple, as long as a support base and insertion means are provided.
I'm done.

[0054]

Further, by using the whole part peeling device according to the invention of claim 2 , peeling of the composite film and conveyance of the peeled base sheet and the peeling sheet in the predetermined direction are simultaneously performed by releasing the suction of the suction cup member. The peeling device can be made compact and simpler.

Further, by using the whole-part peeling device according to the invention of claim 3 , the peeling sheet can be peeled off, and at the same time, the peeling sheet can be wound and collected, and the collected peeling sheet can be easily discarded. Therefore, a large space area for collecting the release sheet is unnecessary.

[Brief description of drawings]

FIG. 1 is an explanatory cross-sectional view showing the overall configuration of a peeling device of the present invention.

FIG. 2 is a sectional view of a suction roller of the overall peeling device.

FIG. 3 is a cross-sectional explanatory view of the peeling device showing a state in which the leading end of the composite film is conveyed to the leading end peeling device.

FIG. 4 is a cross-sectional explanatory view of a peeling device showing a state where the leading end of the composite film is peeled by the leading end peeling device.

FIG. 5 is an enlarged cross-sectional view showing a state where the leading end of the composite film is being peeled off.

FIG. 6 is an enlarged cross-sectional view showing a state where the front end of the composite film is completely peeled off in the peeling gap.

FIG. 7 is a cross-sectional explanatory view of the peeling device showing a state in which the front end portion of the composite film after peeling is pulled out from the peeling gap.

FIG. 8 is a cross-sectional explanatory view of the peeling device showing a state where the composite film is conveyed to the whole peeling device after peeling off the front end portion thereof.

FIG. 9 is a cross-sectional explanatory view of the peeling device showing a state in which the front end portion of the composite film conveyed to the entire peeling device is attracted to the suction roller.

FIG. 10 is a cross-sectional explanatory view of the peeling device showing a peeled state of the composite film by the whole peeling device.

FIG. 11 is a schematic diagram of a peeling device showing a state where the peeling of the composite film proceeds by the whole peeling device, the base sheet of the composite film and the leading ends of the peeling sheet reach the conveyance guide, and the suction of the leading end by the suction cup member is released. FIG.

FIG. 12 is a cross-sectional view showing another example of a suction roller.

FIG. 13 is a cross-sectional explanatory view of a peeling device showing another configuration example of the entire peeling device.

FIG. 14 is a cross-sectional explanatory view of a peeling device showing a peeled state of a composite film by another whole peeling device.

FIG. 15 is a cross-sectional explanatory view showing another configuration example of the overall peeling device.

FIG. 16 is an overall configuration diagram of an image recording apparatus.

FIG. 17 is a sectional structural view of a composite film for image recording and a sectional view showing a peeled state.

[Explanation of symbols]

1 composite film 3 Base sheet 5 Release sheet 12 Tip peeling device 13, 13A, 13B Whole peeling device 20 Support 21 Peeling gap 22 Insertion mechanism (insertion means) 26 Inserting blade 28 Swing member 40,40A sucker roller 50 sucker member 70, 70A feed roller 71 Adhesive tape 72 Tape holding means 73 Winding means

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshimitsu Funayoshi 5 No. 5 Higashikujo Minami Ishida-cho, Minami-ku, Kyoto City Dainichi Screen Manufacturing Co., Ltd. Inside the Jujo Plant (72) Mamoru Fujimoto Higashi-kujo, Minami-ku, Kyoto 5 Minami-Ishida-cho Dainichi Honshu Screen Mfg. Co., Ltd., Jujo Plant (56) Reference JP-A-53-85604 (JP, A) JP-A-53-137142 (JP, A) JP-A-54-48546 ( JP, A 62-40462 (JP, A) JP 62-41158 (JP, A) JP 62-126076 (JP, A) JP 6-27685 (JP, A) JP Hei 5-246563 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03F 7/34 B65H 29/54

Claims (3)

(57) [Claims] 1. A composite film peeling device for peeling the release sheet from a base sheet to a composite film in which a release sheet is adhered to a base sheet, the tip for peeling a tip portion of the composite film. comprising a part peeling device, and an entire peeling apparatus holding the base sheet and the front end portion of the release sheet of the composite film is peeled off by the tip end portion peeling device for peeling the two sheets, the tip peeling apparatus, the composite With the film bent,
Can be inserted so that the release sheet peels off locally at the two bends
Between the supporting table having an effective peeling gap and the peeling table
The front end of the composite film conveyed on the gap is bent forward
Insert it into the peeling gap and put the tip into the peeling gap.
An apparatus for peeling a composite film, comprising: an inserting means for drooping . 2. An entire peeling device is provided with a pair of sucker rollers for feeding the composite film to the downstream side while sandwiching the composite film, and the base sheet of the composite film or each tip of the peeling sheet is attached to and detached from the outer peripheral surface of each sucker roller. The peeling device for a composite film according to claim 1 , wherein a suction cup member that freely adsorbs is attached along the roller axial direction. 3. An entire peeling device, wherein a pair of feed rollers for feeding the composite film to the downstream side while sandwiching the composite film, and an adhesive tape wound around the feed roller on the release sheet side so as to adhere to the release sheet of the composite film. A stripping device for the composite film according to claim 1 , further comprising: