JPH1010751A - Peeling device for composite film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a peeling device for efficiently peeling an undesired sheet from a composite film used for recording an image, etc. SOLUTION: The device is provided with carrying rollers 11 and 11A for holding and carrying the composite film 1 to the downstream side, and a pair of sucking rollers 40 and 40A for holding and feeding out the composite film 1 carried by the carrying rollers to the downstream side. A suction cup member 50 for attachably/detachably sucking each leading end part of a base sheet, or a peeling sheet is separately installed on the outer peripheral surface of each sucking roller along the roller axis direction. Besides, pressure rollers 42 and 42A for carrying the base sheet, or the peeling sheet to the downstream side while holding the base sheet, or the peeling sheet together with the sucking rollers 40 and 40A are arranged near the suction release position of the suction cup member 50.

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 used for various kinds of apparatuses which need to peel a release sheet from a base sheet with respect to a composite film having a release sheet bonded to the base sheet.

[0002]

2. Description of the Related Art Conventionally, in an image recording apparatus for plate making,
The unexposed film was pulled out from the long film wound into a roll, a predetermined length of the unexposed film was mounted on the outer peripheral surface of the drum, and exposed by irradiating a laser beam or the like to form a latent image. The exposed films are sequentially wound up, and a large number of the exposed films are developed by an automatic developing device provided separately from the image recording apparatus, and a large number of plate making films are manufactured by a single development.

For this reason, the film exposed by the image recording apparatus must be once transported to an automatic developing apparatus so as not to be exposed to external light, loaded into an automatic developing apparatus, and developed. It was complicated and forced to reduce productivity.

Therefore, in recent years, composite films that do not require a developing step have been provided. That is, FIG.
As shown in (A), the composite film 1 for image recording includes:
A base sheet 3 on which the color material layer 2 is formed, and a release sheet 5 which is detachably bonded to the color material layer 2 via an adhesive layer 4, wherein the release sheet 5 is smaller than the base sheet 3. In general, the thickness is reduced.

When the composite film 1 is exposed, the color material layer 2 is exposed.
Of these, the color material portion irradiated with the laser light loses the bonding force with the base sheet 3 and, as shown in FIGS. 17B and 17C,
As the release sheet 5 is peeled off, it is peeled off from the base sheet 3 together with the adhesive layer 4. Thus, a base sheet on which image information is recorded, that is, an image forming sheet 7 (image recording film) is obtained. In addition, there is a composite film of a type in which a portion irradiated with a laser beam in the color material layer 2 acquires a bonding force with the base sheet 3. In this case, the composite film is peeled off from the base sheet 3 together with the release sheet 5. Is a color material portion not irradiated with the laser light.

[0006]

The above-mentioned composite film is usually provided in the form of a long film in the form of a roll. As in the conventional case, an operation of exposing an image to a composite film cut to an appropriate length is performed. Is performed continuously, and is usually treated as a square sheet-like composite film 1 after exposure.

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

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

[0009]

According to a first aspect of the present invention, there is provided a peeling device for peeling a composite film having a release sheet adhered to a base sheet, the peeling sheet being separated from the base sheet. And a conveying means for conveying the composite film to the downstream side, and a pair of suction rollers for nipping and sending the composite film conveyed by the conveyance means to the downstream side, and a base sheet is provided on an outer peripheral surface of each suction roller. Or, a suction member for detachably adsorbing each end portion of the release sheet is provided along the roller axis direction, and further, a discharge means for holding the base sheet or the release sheet and discharging to the downstream side is provided by the discharge means of the suction member. It is arranged near the suction release position.

According to this peeling device, when the leading end of the composite film is conveyed between the pair of suction rollers by the conveying means, the composite film is nipped and sucked by the suction members of the pair of suction rollers. Thereafter, the base sheet and the release sheet of the composite film are sequentially peeled from the front end portion along the roller circumferential direction from the roller holding portion with the rotation of each suction roller, so that the entire composite film is easily peeled. Further, the suction of the sucker member is released at a position near the carrying-out means for holding the peeled base sheet and release sheet. Thereafter, the peeling of the base sheet and the release sheet is carried out by carrying out the base sheet and the release sheet to the downstream side using the carrying-out means. Therefore, the peeling of the composite film and the transport to the predetermined area can be performed at the same time, which can contribute to an increase in processing speed, a reduction in the size of the apparatus, and a simplification of the structure.

According to a second aspect of the present invention, there is provided a peeling device, comprising: a conveying means for conveying the composite film to the downstream side; and a base sheet for holding the composite film conveyed by the conveying means and attaching to the adhesive layer formed on the outer peripheral portion. Or a pair of adhesive rollers that affix the release sheet from its tip and rotate in the forward direction to peel off both sheets by rotating in the forward direction, and the base sheet and the release sheet that have been rewound by the reverse rotation of the adhesive roller. An unloading means for pinching and unloading is attached to each adhesive roller.

According to the peeling device, when the leading end of the composite film is conveyed to the adhesive roller by the conveying means, the composite film is sandwiched between the pair of adhesive rollers and attached to the outer peripheral surface thereof. Then, as the adhesive roller rotates in the forward direction, the base sheet and the release sheet of the composite film are adhered along the circumferential direction of the roller from the roller holding portion and are sequentially peeled from the leading end, so that the entire composite film is easily peeled. Is done. The peeled substrate sheet and the peeled sheet are wound around each adhesive roller. After the sheet is wound around the adhesive roller one round, the newly peeled sheet is superimposed and wound on the sheet. Therefore, the adhesive roller does not come into contact with the entire length of the composite film, so that the dirt on the adhesive layer and the decrease in the adhesive force can be minimized, and the maintainability is good. The base sheet or the release sheet wound around each adhesive roller is rewound by rotation of the adhesive roller in the reverse direction, and is conveyed to a desired area by an unloading roller via an appropriate conveyance guide.

According to a third aspect of the present invention, there is provided a peeling device, comprising: a conveying means for conveying the composite film to the downstream side; and a base sheet on the adhesive layer formed on the outer periphery while holding the composite film conveyed by the conveying means. An adhesive roller that peels off both sheets by attaching a release sheet from its tip and rotating in the forward direction and a peeling claw that peels the base sheet or release sheet attached to each adhesive roller from the outer peripheral surface of the roller, Discharge means is provided on the downstream side of the adhesive roller and discharges the base sheet and the release sheet peeled off by the release claw, respectively.

According to the peeling device, as in the case of the peeling device of the second aspect, the base sheet and the peeling sheet of the composite film are adhered along the circumferential direction of the roller from the roller holding portion according to the rotation of the adhesive roller. Accordingly, the entire composite film is easily peeled off. The base sheet and the peeling sheet which are stuck and peeled from the holding portion of the adhesive roller in the roller circumferential direction are immediately peeled off from the outer peripheral surface of the adhesive roller by the peeling claw, and are conveyed to the intended area via the unloading means. That is, while the composite film is peeled, the peeled substrate sheet and the peeled sheet can be immediately carried out, and high-speed processing can be performed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In describing a composite film peeling apparatus of the present invention, first, an overall configuration and a flow of the composite film will be described, taking an image recording apparatus in which the peeling apparatus is used as an example.

FIG. 15 is a block diagram of an image recording apparatus using a long composite film. The unexposed composite film 1A wound in a roll is transported by conveying rollers 102, 102, 103, and 103.
103, the composite film 1A is cut into an appropriate length by a film cutter 105 in accordance with the exposure drum or the image size, and the cut composite film is cut via the squeegee roller 108 into the exposure drum 1.
04 and wound around it. Exposure drum 10
4 is exposed to the exposure drum 104
Is vacuum-sucked through a number of intake holes provided on the outer peripheral surface of the exposure drum 104, and is tightly fixed to the outer peripheral surface of the exposure drum 104.

The composite film on the exposure drum 104 is exposed by irradiating a laser beam from the optical unit 107 while rotating the exposure drum 104. On the outer peripheral surface of the exposure drum 104, a groove into which the tip of the peeling claw 109 is inserted is formed. After exposure of the composite film, the outer peripheral surface of the exposure drum 104 between the front end and the rear end of the composite film is formed. The composite film 1 is peeled off from the exposure drum 104 while inserting the tip end of the peeling claw 109 into the exposed groove and rotating the exposure drum 104, and is fed into the peeling device 111 of the present invention via the transport guide 110.

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

As shown in FIG. 1, the peeling apparatus of the present invention
A pair of transport rollers 11 and 1 for transporting the composite film 1 in the form of a square sheet cut to a predetermined length while sandwiching the composite film between the rollers.
1A (conveying means) and the leading end of the composite film 1 conveyed by the conveying rollers 11 and 11A are adsorbed and held by a number of suction members 50 arranged in the axial direction of the roller, and are pinched between the rollers to be peeled. Rollers 40, 40A for carrying out the transfer, the transport rollers 11, 11A and the suction rollers 4
A transfer guide 20 is provided between the transfer guides 0 and 40A.

The transport rollers 11 and 11A are arranged so that the composite film 1 can be held at the outer peripheral surface facing portion.
One (the lower side in the illustrated example) of the transport roller 11 has a fixed position of its rotating shaft, and the other transport roller 11A has its rotating shaft movable in a radial direction with respect to the fixed transport roller 11 in the plane of the drawing. And the transport roller 1 on the fixed side
One side is urged by a spring or its own weight. The fixed-side transport roller 11 is driven by a drive motor so as to be able to stop forward / reverse rotation. In this case, the other transport roller 11 </ b> A is driven to rotate via the composite film 1. Of course, in order to reliably transport the composite film 1, the transport rollers 11 on the driving side are used.
The gears and the belt conducting member are connected to the two transfer rollers 11 and 11A so that the rotation is transmitted from the drive roller 11A to the driven transfer roller 11A.
May be attached. A lining layer may be formed on the outer peripheral surfaces of the transport rollers 11 and 11A with a material such as rubber having a large friction coefficient.

Pressing rollers 42, 42A (conveying means) which come into contact with the delivery sides of the suction rollers 40, 40A in a pressed state against the outer peripheral surfaces of the suction rollers 40, 40A, and are driven to rotate by the rotation of the suction rollers 40, 40A. A transport guide 43, 43A for guiding the base sheet 3 and the release sheet 5 to the downstream side is provided on the sending side of the pressing rollers 42, 42A. Press roller 4
The rotary shafts 2, 42A can be pressed against the outer peripheral surfaces of the suction rollers 40, 40A by urging their rotation shafts toward the suction rollers 40, 40A by a spring (not shown). The lining layer is formed of a material such as rubber having a large coefficient.

Of the sucker rollers 40, 40A, one (lower side in the figure) sucker roller 40 has a fixed position of its rotating shaft, and the other (upper side) sucker roller 40A has a fixed side in the plane of the drawing. The composite film 1 is supported so as to be slightly close to and separated from the suction roller 40 so that the composite film 1 can be sandwiched between the rollers. The moving suction roller 40A is urged toward the fixed suction roller 40 by a spring or its own weight. ing.

As shown in FIG. 2, the suction rollers 40, 40A are airtightly provided with a pipe 53 inside a roller cylinder 52 provided between the left and right end plates 51, 51. Has many suction members 50 in the roller axis direction.
Are connected, and the tip suction portion 55 is connected to the roller cylinder 5.
2, it is slightly exposed from the outer peripheral surface of the opening. Roller shafts 57 provided on the end plates 51, 51,
Bearings 58, 58 for rotatably supporting the suction rollers 40, 40A are attached to 57, and a gear 60 for transmitting reverse rotation to the other suction roller is attached thereto. 61, 61 are connected.
Further, the illustrated suction roller 40 on the fixed side is provided with a pulley 59 for rotational driving. The roller shaft 57,
Inside the 57, there are formed suction passages communicating with the rotary hose joints 61, 61 and the vacuum chamber 62 in the pipe 53. It is connected to the vacuum pump via piping. The suction rollers 40 and 40A may also have a lining layer formed of a material having a large friction coefficient such as rubber on the outer peripheral surface.

Next, the operation of each part of the peeling apparatus of the present invention will be described. In the following description, for convenience of explanation,
The release sheet 5 will be described as an upper side in the drawing.

The composite film 1 after the exposure is
Until the suction rollers 40, 40A are conveyed to the suction roller 40, 40A side by 1, 11A, the suction rollers 40, 40A are
The suction cup members 50 of 40A are stopped in a state of being rotated slightly upstream from a state in which they face each other. This position is set as a reference position of the suction cup member 50 (see FIG. 3).

When the leading end of the composite film 1 reaches the vicinity of the suction rollers 40, 40A, the vacuum solenoid valve is opened to operate the vacuum chamber 62 in the pipe 53 (see FIG. 2).
Is evacuated, and the rotation of the suction rollers 40 and 40A is started. The arrival of the composite film 1 is detected by an appropriate detector such as a photo sensor, and the signal controls the vacuum solenoid valve and the suction roller driving motor.

At this time, the peripheral speed of the suction rollers 40 and 40A and the conveying speed of the composite film 1 are set to be substantially the same, and the leading end of the composite film 1 is positioned at the portion where the outer peripheral surfaces of the suction rollers 40 and 40A are closest. At the time of passing, as shown in FIG. 4, the respective distal ends of the base sheet 3 and the release sheet 5 of the composite film 1 are sucked and held by the tip sucking section 55 of the suction cup member 50. At this point, vacuum suction may be started.

Further, as shown in FIG.
By the rotation of 0, 40A, the base sheet 3 and the release sheet 5 of the composite film 1 are peeled off from each other and conveyed in the roller rotation direction. Then, as shown in FIG. 6, the leading ends of the base sheet 3 and the release sheet 5 are
After passing through 42A, the vacuum solenoid valve is closed to release the vacuum suction. The timing of the suction release is determined by detecting that the leading end of the base sheet 3 and / or the release sheet 5 has passed through the pressing rollers 42 and 42A or detecting the rotational positions of the suction rollers 40 and 40A by an appropriate detector. It is better to control the vacuum solenoid valve by controlling the time from the start of rotation of the suction rollers 40 and 40A.

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

After the base sheet 3 and the release sheet 5 are discharged into the respective conveyance guides 43, 43A, the suction rollers 40, 4
OA rotates to the reference position of the suction cup member 50, stops there, and waits until the next composite film 1 is conveyed. The stop timing of the suction rollers 40, 40A is determined after the discharge of the base sheet 3 or the release sheet 5 is detected by an appropriate detector, or after a predetermined time has elapsed from the start of rotation of the suction rollers 40, 40A. What is necessary is just to detect that 40A has come to the reference position, and stop the drive motor of the suction rollers 40, 40A based on the detection signal.

Another use of the peeling device is as follows: after suction of the leading end of the composite film 1 is started by the sucker member 50, suction is continued until the entire length of the composite film 1 is completely peeled off. , 40A, the base sheet 3 and the release sheet 5 may be once wound up, then rewinded by rotating the suction rollers 40, 40A in reverse, and discharged to the transport guides 43, 43A. In this case, it is preferable that the pressing rollers 42 and 42A can be driven to rotate.

When a new composite film wound in a roll is installed in an image recording apparatus, it is possible to cut a few tens of cm of the film front end portion which is easily soiled on the outer periphery in advance and discharge the image without performing image recording. Done. In this case, the cut composite film is transported to the suction rollers 40 and 40A,
When feeding the suction film to the downstream side by the suction rollers 40 and 40A, only the suction member 50 of one suction roller is operated, and the suction member 50 discharges the composite film to the required conveyance guide side while sucking the leading end of the composite film. Good.

In the above peeling device, the suction rollers 40, 40
Since A is used, the peeling of the composite film 1 and the conveyance of the base sheet 3 and the peeling sheet 5 in the predetermined direction after the peeling can be simultaneously performed by releasing the suction of the suction cup member 50,
The processing speed can be increased, the peeling device can be made compact, and the structure can be simplified.

In the above embodiment, the suction rollers 40, 40
7A, the suction cup member 50 is connected to the pipe 53 provided in the roller cylinder 52. As shown in FIG. 7, the suction cup member 50 is connected to the support plate 65 provided between the end plates 51, 51. Vacuum hoses may be directly piped to the suction cup member 50 from the suction ports of the end plates 51, 51. In the illustrated example, since two pipes are provided from the left and right end plates 51, 51 in two intake paths 66, 67, two kinds of vacuum pressures can be used. Thus, the suction operation can be performed using one or both of the intake paths.

Further, in the above embodiment, the tip suction portion 55
Although the sucker rollers 40 and 40A in which a plurality of circular sucker members 50 are arranged in the roller axis direction are shown, one or more sucker members whose tip suction portions are opened in a slit shape in the axial direction may be used.

FIG. 8 shows another embodiment, in which a pair of adhesive layers 71 having an adhesive layer 71 formed on the outer peripheral surface thereof with an adhesive rubber or an adhesive sheet is provided downstream of the transport rollers 11, 11A via a transport guide 20A. Adhesive rollers 70, 70A are provided, and the adhesive rollers 70, 70A are respectively provided with pressing rollers 72, 72A that are driven to rotate according to the rotation of the adhesive rollers 70, 70A.

The adhesive rollers 70 and 70A are provided with gears (not shown) for transmitting one rotation to the other as reverse rotation, and the fixed (lower) adhesive roller 70 is provided with a drive motor. A transmission member such as a pulley for transmitting rotation is provided. In addition, each pressing roller 72, 72A
, A pair of unloading rollers 74, which pinch and convey the sheet between the rollers via conveyance guides 73, 73 </ b> A.
74A, 75 and 75A (conveyance means) are attached.
The pressing rollers 72, 72A are the pressing rollers 4 of FIG.
2, 42A and carry-out rollers 74, 74A, 75, 75A
Has the same configuration as the transport rollers 11 and 11A.

Of the adhesive rollers 70 and 70A, the fixed-side adhesive roller 70 has a fixed position of the rotation shaft 76, and the upper adhesive roller 70A in the figure has a vertically extending guide guide (not shown). ) And the rotation axis 7
6A is supported so as to be able to approach and separate from the fixed-side adhesive roller 70, and the movable-side adhesive roller 70A
Alternatively, it is urged toward the fixed adhesive roller 70 by a spring or the like. The movable width of the moving-side adhesive roller 70A is set so as to correspond to the maximum winding outer diameter when the entire lengths of the base sheet and the release sheet are wound on the adhesive rollers 70, 70A.

An urging release arm 77 for forcibly moving the rotating shaft 76A of the moving adhesive roller 70A upward in the drawing is provided. One end of the urging release arm 77 is disposed below the rotary shaft 76A, and the other end is connected to a vertical movement means such as a cylinder or a rack and pinion mechanism. It is free. Even when the moving-side adhesive roller 70A moves upward, the rotation transmitting gears attached to the respective adhesive rollers 70, 70A are in mesh with each other, and the rotation from the fixed-side adhesive roller 70 causes the moving-side adhesive roller 70 to rotate. The power is transmitted to the roller 70A.

The operation of the peeling device in this embodiment will be described.

As shown in FIG. 9, the transport rollers 11, 11
The appropriate detector detects that the composite film 1 has arrived at a position near the upstream side of the adhesive rollers 70 and 70A by A, and the adhesive rollers 70 and 70A are rotated forward by the detection signal. The tips of the composite film 1 are adhesive rollers 70, 70
As shown in FIG. 10, when the composite film 1 is fed into the opposing portion of A and sandwiched between the rollers, the base sheet 3 and the release sheet 5 of the composite film 1 are separated from each other by the adhesive rollers 70 and 70A.
The composite film 1 is peeled from the roller holding portion in accordance with the rotation of the roller. Further, as it rotates, as shown in FIG.
The base sheet 3 and the release sheet 5 are wound around the outer circumferences of the adhesive rollers 70 and 70A several times while being urged by A and brought into close contact therewith. At this time, the moving-side adhesive roller 70A moves upward according to the winding thickness.

The rear end of the base sheet 3 or the release sheet 5 is
When the pressing rollers 72 and 72A come before the pressing rollers 72 and 72A, the rotation of the adhesive rollers 70 and 70A is stopped, and as shown in FIG.
The urging release arm 77 (not shown) is operated to separate the adhesive rollers 70 and 70A so that the sheet wound around the adhesive rollers 70 and 70A does not come into contact, and then the adhesive roller 70 is moved in the direction shown by the broken line in the figure. , 70A are rotated in reverse, and the discharge rollers 74, 74A, 75, 75A are rotated.
Adhesive rollers 70 and 70A and carry-out rollers 74 and 74A,
The rotation control of 75 and 75A may be performed by detecting the rear end of the sheet using an appropriate detector and using the detection signal.
Alternatively, the control may be performed based on the elapsed time from the start of rotation of the adhesive rollers 70 and 70A.

By the reverse rotation of the adhesive rollers 70, 70A, the base sheet 3 or the release sheet 5 wound on the adhesive rollers 70, 70A is transferred to the unloading rollers 74, 74A, 75, 75A via the transport guides 73, 73A. Sent to
The sheet is nipped and carried out by the carry-out rollers 74, 74A, 75, 75A, and carried out to a predetermined collection area via an appropriate conveyance guide. At this time, since the preceding sheet is also pulled out by the carry-out rollers 74, 74A, 75, and 75A and carried out, the sheet adhered to the outer peripheral surface of the adhesive rollers 70 and 70A is also taken out. Easily peeled off.

The base sheet 3 or the release sheet 5 wound around the adhesive rollers 70, 70A is attached to the adhesive rollers 70, 7A.
Since only a few turns are wound around the outer circumference of 0A, when the adhesive rollers 70, 70A are discharged in the reverse direction, strictly speaking, if the number of rotations of the rollers is the same, the transport speed changes in accordance with the unloading of the sheet. Since the thickness is negligible, the speed change is almost negligible. For this reason, the peripheral speed of the unloading rollers 74, 74A is set substantially equal to the peripheral speed of the adhesive rollers 70, 70A.

In the above embodiment, the example in which the urging release arm 77 is provided is shown, but the urging release arm 77 is not necessarily required. However, by providing the urging release arm 77, when the adhesive rollers 70, 70A are discharged in the reverse direction,
There is an advantage that contact and rubbing between the wound sheets are prevented.

In this embodiment, the adhesive rollers 70, 70A
Dirt on the surface of the pressure-sensitive adhesive layer 71, and hence the decrease in adhesive strength is small, but when the adhesive strength is significantly reduced, the dirt is removed by washing with an appropriate solvent such as water or an organic solvent. Can be.

FIG. 13 shows a third embodiment.
In this embodiment, the transport rollers 11 and 11A, the transport guide 20
A, the arrangement of the adhesive rollers 80, 80A is the same as that of the previous embodiment, but each adhesive roller 80, 80A is provided with a plurality of peeling grooves 81 on the outer circumference in the circumferential direction, as shown in FIG. As described above, the peeling claws 82 and 82A each having a comb-like tip that can be inserted into the peeling groove 81 are additionally provided.
2, 82A, take-out rollers 83, 83A, 84,
84A (conveyance means) is attached. In addition, peeling claw 8
Guide guides 85, 85A are provided between the rollers 2, 82A and the discharge rollers 83, 83A, 84, 84A. still,
It is preferable to coat a low friction layer such as ethylene tetrafluoride resin on the peeling side surfaces (tapered surfaces in the figure) of the distal ends of the peeling claws 82 and 82A so that the peeled sheet is smoothly sent to the downstream side.

According to this peeling device, the leading end of the composite film 1 is fed to the opposing portions of the adhesive rollers 80 and 80A,
When sandwiched between the rollers, the composite film 1 is separated from the leading end by the base sheet 3 and the release sheet 5 as in the previous embodiment.
Are adhered to the outer peripheral surfaces of the adhesive rollers 80 and 80A, and the composite film 1 is sequentially peeled off from the roller holding portion in accordance with the rotation of the rollers. Further, when the ends of the base sheet 3 and the release sheet 5 reach the release claws 82 and 82A by the rotation of the rollers as shown in FIG.
The sheets are adhered to the adhesive rollers 80, 8 by the comb-shaped tip of A.
Discharge roller 8 which is peeled off from 0A and disposed on the downstream side
By 3,83A, 84,84A, it is transported to the intended area.

The peeling device of the present invention is not limited to the case where it is attached to the above-mentioned image recording apparatus. Further, regardless of the presence or absence of the color material layer in the composite film, the composite film in which the base sheet and the release sheet are peelably bonded. The present invention can be applied to various devices that need to peel a release sheet from a sheet.

[0050]

According to the peeling device according to the first to third aspects of the present invention, since the composite film can be peeled sequentially from the tip end thereof, the composite film can be peeled easily and the device can be made compact. And lower power can be achieved.

In the peeling apparatus according to the first aspect of the present invention, the peeling of the composite film and the conveyance of the peeled base sheet and the peeling sheet in a predetermined direction can be simultaneously performed by releasing the suction of the suction cup member. It is possible to further increase the speed and make the peeling device compact and simple.

In the peeling device according to the second aspect of the present invention, the base sheet or the peeling sheet is attached to the adhesive roller only for one round, and does not contact the entire length of the sheet. The peeling ability is not easily reduced, and the maintainability is good.

Further, in the peeling device of the third aspect, the peeled base sheet and the peeled sheet can be immediately carried out to the downstream side while the composite film is peeled, and high-speed processing is possible.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view showing an entire configuration of a peeling device including a suction roller of the present invention.

FIG. 2 is a sectional view of a suction roller.

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

FIG. 4 is an explanatory cross-sectional view of the peeling device showing a state in which a front end portion of the composite film is attracted to a suction roller.

FIG. 5 is an explanatory cross-sectional view of a peeling device showing a peeled state of the composite film.

FIG. 6 is a cross-sectional explanatory view of a peeling device showing a state in which the peeling of the composite film progresses, the leading ends of the base sheet and the peeling sheet of the composite film reach the transport guide side, and suction of the leading end by the suction cup member is released. It is.

FIG. 7 is a sectional view showing another example of the suction roller.

FIG. 8 is an explanatory cross-sectional view illustrating an entire configuration of a peeling device including an adhesive roller.

FIG. 9 is an explanatory cross-sectional view of the peeling device showing a state in which the leading end of the composite film has been conveyed to the vicinity of the adhesive roller.

FIG. 10 is an explanatory cross-sectional view of a peeling device showing a state in which a leading end of a composite film is stuck to an adhesive roller and peeled off as the roller rotates.

FIG. 11 is an explanatory cross-sectional view of a peeling device showing a state where the composite film is wound up while being peeled off by an adhesive roller.

FIG. 12 is an explanatory cross-sectional view of the peeling device showing a state immediately after rewinding and carrying out the base sheet and the peeling sheet after the peeling of the composite film is completed.

FIG. 13 is an explanatory cross-sectional view illustrating an entire configuration and a peeling state of a peeling device including an adhesive roller and a peeling claw.

FIG. 14 is a partial perspective view of a peeling claw.

FIG. 15 is an overall configuration diagram of an image recording apparatus.

FIG. 16 is a cross-sectional view of a composite film for image recording and a cross-sectional view showing a peeled state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Composite film 3 Base sheet 5 Release sheet 11, 11A Conveying roller (conveying means) 40, 40A Suction roller 42, 42A Pressing roller (conveying means) 50 Suction member 70, 70A, 80, 80A Adhesive roller 74, 74A, 75, 75A carry-out roller (carry-out means) 83, 83A, 84, 84A carry-out roller (carry-out means) 82, 82A

Continued on the front page (72) Inventor Toshimitsu Funayoshi 5th Higashikujo Minamiishidacho, Minami-ku, Kyoto Dainippon Screen Manufacturing Co., Ltd. Jujo Office (72) Inventor Mamoru Fujimoto 5th Higashikujo Minamiishidacho, Minami-ku, Kyoto-shi Dainippon Screen Mfg. Co., Ltd.

Claims (3)

[Claims] 1. A composite film peeling apparatus for peeling a release sheet from a base sheet with respect to the composite film having a release sheet adhered to the base sheet, comprising: transport means for transporting the composite film to a downstream side; A sucker member comprising a pair of sucker rollers for sandwiching and sending the composite film conveyed by the conveying means to the downstream side, and detachably adsorbing the respective leading end portions of the base sheet or the release sheet on the outer peripheral surface of each sucker roller. Is provided along the roller axis direction, and a discharge means for sandwiching the base sheet or the release sheet and discharging to the downstream side is disposed near the suction release position of the suction cup member. Film peeling device. 2. A composite film peeling device for peeling the release sheet from the base sheet with respect to the composite film having the release sheet adhered to the base sheet, comprising: a conveying means for conveying the composite film to a downstream side; Holding the composite film conveyed by the conveying means, and attaching a base sheet or a release sheet to the pressure-sensitive adhesive layer formed on the outer peripheral portion from the leading end thereof and rotating in the forward direction to separate and wind both sheets. A composite film comprising a pair of adhesive rollers, and a discharge means for pinching and discharging the base sheet and the release sheet respectively rewound by rotation of the adhesive roller in the opposite direction is attached to each adhesive roller. Stripping device. 3. A composite film peeling device for peeling the release sheet from the substrate sheet with respect to the composite film having the release sheet adhered to the substrate sheet, comprising: a transport means for transporting the composite film to a downstream side; An adhesive roller for holding the composite film conveyed by the conveying means, and adhering a base sheet or a release sheet to the adhesive layer formed on the outer peripheral portion from the front end thereof and peeling both sheets by rotating in a forward direction; A peeling claw for peeling the base sheet or the peeling sheet adhered to each adhesive roller from the outer peripheral surface of the roller, and a base sheet and a peeling sheet provided on the downstream side of each adhesive roller and peeled by the peeling claw, respectively. An apparatus for separating a composite film, comprising an unloading means for unloading.