JP2003034462A - Sticking object separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sticking object separator capable of easily separating a sticking object from a sheet material stuck with the sticking object with high productivity. SOLUTION: A separating roller 30 for rotating by receiving rotational driving force from a rotational driving device is arranged above a carrier conveyor 22B. A plurality of through-holes 38 in the thickness direction are formed in the separating roller 30. The inside of the separating roller 30 is divided into a pressure reducing area 48 and a pressurizing area 50 by a nonrotatable partition plate 42. An interleaf 14 stuck to a plate printing block 10 is sucked by suction air from the through-holes 38 corresponding to the pressure reducing area 48, and is separated from the plate printing block 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive article separating device for separating an adhesive article from a sheet material to which the adhesive article is attached.

[0002]

2. Description of the Related Art Platemaking methods in recent years (including electrophotographic platemaking methods)
In order to facilitate automation of the plate making process, lithographic printing plates such as photosensitive printing plates and heat-sensitive printing plates are widely used.
A lithographic printing plate is generally formed on a support such as a sheet-shaped or coil-shaped aluminum plate by, for example, graining, anodizing,
Surface treatment such as silicate treatment and other chemical conversion treatment is performed individually or in combination, and then, a photosensitive layer or a heat-sensitive layer (hereinafter, these are collectively referred to as "coating film", and the surface coated with the coating film is referred to as "image formation". Surface, the surface on which the coating film is not formed is referred to as a “non-image forming surface”, and then dried to be cut into a desired size. After manufacturing, if the coating film of the lithographic printing plate is damaged, it may affect the printed surface, so protective paper called interleaving paper may be attached to the coating film by electrostatic adhesion. is there.

After removing the interleaving paper, the planographic printing plate is subjected to plate making processing such as exposure, development processing, gumming, etc., and is set in a printing machine to be coated with ink, whereby characters and images are printed on the paper surface. Etc. are printed.

By the way, for example, when a defect is found in the lithographic printing plate after forming the coating film, it is not necessary to protect the coating film because it is not a product, and the interleaving paper is unnecessary. Further, depending on the needs of the user, interleaving paper may not be necessary.

As described above, when the interleaving paper is no longer necessary, it is necessary to separate the interleaving paper from the planographic printing plate and remove it. In the past, since this removing work was manually performed,
Workability was low. Further, in the manual separation, the number of sheets separated per unit time is limited, and the productivity is low.

Such an inconvenience has been caused not only when the interleaving paper is separated from the lithographic printing plate but also when it is generally necessary to separate the sticking material from the sheet material to which the sticking material is stuck.

[0007]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention has an object to obtain an adhesive article separating device which can easily and highly efficiently separate an adhesive article from a sheet material to which the adhesive article is attached. It is an issue.

[0008]

According to a first aspect of the present invention, there is provided a conveying device for conveying a sheet material having an adhered object stuck thereto in a predetermined direction, and a state in which the sheet material is conveyed by the conveying device. And a separating means for separating the adhered material from the sheet material.

In this adhered material separating device, the sheet material to which the adhered material is adhered is conveyed in a fixed direction by the conveying device.
Then, while the sheet material is being conveyed by the conveying device, the separating means separates the adhered material from the sheet material.

Therefore, without the manual work of the operator,
The adhered material can be separated from the sheet material, which improves workability. Moreover, since the adhered material can be separated without stopping the transportation of the sheet material, the productivity is also improved.

The specific structure for separating the adhered material from the sheet material by the separating means is not particularly limited. For example, the structure may be such that the adhered material is adhered and separated from the sheet material. As described above, it may be configured to have a decompression adsorption device that adsorbs the adhered material by a suction force due to decompression of air and separates it from the sheet material. With this configuration, the attached material can be reliably separated from the sheet material. Moreover, the suction force can be adjusted by adjusting the degree of pressure reduction.

Further, the structure for separating the adhered material while conveying the sheet material is not particularly limited, but as described in claim 3, at least the adsorption portion for adsorbing the adhered material of the decompression adsorption device is the sheet. It can be configured to be movable in the transport direction in synchronization with the material.

According to a fourth aspect of the invention, in the invention according to any one of the second to third aspects, a releasing means for releasing the adhered material adsorbed by the reduced pressure adsorption device from the reduced pressure adsorption device, It is characterized by having.

As a result, it becomes possible to further separate the adhered matter adsorbed by the reduced pressure adsorption device from the reduced pressure adsorption device and accumulate only the adhered substance. Further, by separating the adhered material from the reduced pressure adsorption apparatus, the reduced pressure adsorption apparatus returns to the initial state, so that the adhered material can be continuously separated from the sheet material.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the separating means is provided with an approach position at which the sheet material can be approached to separate the adhesive article. And a moving device that moves between a separated position that is separated from the sheet material and does not separate the adhered object, and a moving device.

Therefore, only when it is necessary to separate the adhered material from the sheet material, the separating means is moved to the approaching position to separate them, and when it is not necessary, the separating means is set to the separating position. That is, by switching the separating means between the approaching position and the separating position, it is possible to easily switch between the case of separating the adhered object and the case of not separating the adhered object.

According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the conveying device removes the sheet material depending on whether or not it is necessary to separate the adhered material. It is characterized in that the sorting device is operated.

Therefore, the sorting device can sort the sticking material into the sheet material that needs to be separated and the sheet material that does not need to be separated. By arranging the separating means corresponding to the sheet material that needs to separate the sticking material, the sticking material can be efficiently separated from the sheet material as needed.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 partially shows a schematic configuration of a lithographic printing plate processing line 16 according to a first embodiment of the present invention. Further, FIG. 2 and FIG. 3 show an interleaf separation unit 18 which is the adhered material separation device of the first embodiment.

The planographic printing plate 10 comprises a thin aluminum support formed in the shape of a rectangular plate and a coating film (a photosensitive layer in the case of a photosensitive printing plate, a heat sensitive layer in the case of a thermosensitive printing plate). Further, if necessary, an overcoat layer, a mat layer, etc.) is applied to form the layer. Exposure to this coating film,
A plate-making process such as a development process and gumming is carried out, the plate is set in a printing machine, and ink is applied, so that characters, images, etc. are printed on the paper surface. The planographic printing plate 10 of the present embodiment
Is at a stage prior to the processing (exposure, development, etc.) necessary for printing, and is sometimes referred to as a lithographic printing plate precursor or a lithographic printing plate material.

With such a configuration, the specific configuration of the lithographic printing plate 10 is not particularly limited, but for example, a lithographic printing plate for a laser printing plate of a heat mode system and a photon system can be used for digital printing. A lithographic printing plate can be made directly from the data.

Further, the lithographic printing plate 10 can be made into a lithographic printing plate corresponding to various plate making methods by selecting various components in the photosensitive layer or the heat sensitive layer. Examples of specific embodiments of the lithographic printing plate according to the present invention include the following (1)
The aspect of (11) is mentioned. (1) A mode in which the photosensitive layer contains an infrared absorber, a compound that generates an acid by heat, and a compound that crosslinks by an acid. (2) A mode in which the photosensitive layer contains an infrared absorber and a compound that becomes alkali-soluble by heat. (3) A mode in which the photosensitive layer includes two layers, a layer containing a compound that generates radicals by laser irradiation, an alkali-soluble binder, and a polyfunctional monomer or prepolymer, and an oxygen barrier layer. (4) A mode in which the photosensitive layer comprises two layers of a physical development nucleus layer and a silver halide emulsion layer. (5) A mode in which the photosensitive layer includes three layers of a polymerized layer containing a polyfunctional monomer and a polyfunctional binder, a layer containing silver halide and a reducing agent, and an oxygen barrier layer. (6) A mode in which the photosensitive layer includes two layers, a layer containing a novolac resin and naphthoquinonediazide, and a layer containing silver halide. (7) A mode in which the photosensitive layer contains an organic photoconductor. (8) A mode in which the photosensitive layer includes two or three layers including a laser light absorption layer that is removed by laser light irradiation and a lipophilic layer and / or a hydrophilic layer. (9) A compound in which the photosensitive layer absorbs energy to generate an acid, a polymer compound having a functional group in the side chain to generate a sulfonic acid or a carboxylic acid by the acid, and an acid generator by absorbing visible light Embodiments containing a compound that gives energy to (10) A mode in which the photosensitive layer contains a quinonediazide compound and a novolac resin. (11) A mode in which the photosensitive layer contains a compound that decomposes by light or ultraviolet rays to form a cross-linked structure with itself or other molecules in the layer, and an alkali-soluble binder.

In particular, in recent years, a lithographic printing plate coated with a high-sensitivity photosensitive type coating film exposed by a laser or a heat-sensitive lithographic printing plate may be used (for example, the above-mentioned (1) to (3). ), Etc.)).

Note that the wavelength of the laser light here is not particularly limited, and for example, a laser having a wavelength range of 350 to 450 nm (a specific example is a laser diode having a wavelength of 405 ± 5 nm). Laser in the wavelength range of 480 to 540 nm (specific examples include an argon laser having a wavelength of 488 nm and a wavelength of 532 nm).
nm (FD) YAG laser, wavelength 532 nm solid-state laser, wavelength 532 nm (green) He-Ne laser). A laser with a wavelength range of 630 to 680 nm (specifically, a He-Ne laser with a wavelength of 630 to 670 nm,
Red semiconductor laser having a wavelength of 630 to 670 nm). A laser having a wavelength range of 800 to 830 nm (specifically, an infrared (semiconductor) laser having a wavelength of 830 nm). A laser having a wavelength of 1064 to 1080 nm (specifically, a YAG laser having a wavelength of 1064 nm).

And the like. Of these,
For example, any of the laser beams in the wavelength ranges of and can be applied to both the lithographic printing plate having the photosensitive layer or the heat-sensitive layer of the above aspect (3) or (4). Further, any of the laser beams in the wavelength ranges of and can be applied to both the lithographic printing plate having the photosensitive layer or the heat-sensitive layer of the above aspect (1) or (2). Of course, the relationship between the wavelength range of laser light and the photosensitive layer or the heat sensitive layer is not limited to these.

Further, the lithographic printing plate of the present embodiment (the lithographic printing plates of all the aspects (1) to (11) described above) is an automatic plate making machine having an automatic plate feeding function in a state of forming a laminated bundle. It is set as a so-called plate setter or the like and is a planographic printing plate that may be supplied (plate supply) to the plate making process. However, in an actual use situation, it does not depend on how the user of the planographic printing plate feeds the planographic printing plate 10 by an automatic plate feeding mechanism, manually feeding the plate (in other words, All lithographic printing plates are included in the lithographic printing plate 10 according to the present invention (as a problem before the plate feeding method).
In addition, even lithographic printing plates of modes other than the above (1) to (11) are set on an automatic plate making machine having an automatic plate making function, a so-called platesetter, etc., and supplied to the plate making process (feeding). All lithographic printing plates that may be printed are included in the lithographic printing plate according to this embodiment.

Further, in the planographic printing plate, a so-called "discard plate" or "blank plate" is used which is set at a position where ink is not applied (that is, a region where printing is not performed) depending on the space of a printing machine used. There is also what is called. As described above, a waste plate or a blank plate is also included in the planographic printing plate according to this embodiment.

The shape of the planographic printing plate is not particularly limited, and for example, the thickness is 0.1 to 0.5 mm and the long side (width) is 300 to 2.
An aluminum plate having a short side (length) of 050 mm and a length of 200 to 1500 mm and a coating film (photosensitive layer or heat-sensitive layer) applied to one or both sides may be used.

In the processing line 16 shown in FIG. 1, a strip-shaped aluminum plate (aluminum web 1) on which a coating film is formed.
On the other hand, in the case of 2), the interleaving paper 14, which is also formed in a strip shape, is attached to the coating film, and is conveyed by a conveying device (not shown). Then, it is cut into a lithographic printing plate of a predetermined size by a cutting device such as a cutter 20 to obtain a sheet-shaped lithographic printing plate 10. Hereinafter, the "conveyance direction" simply means the conveyance direction of the planographic printing plate 10, and the "width direction" means the width direction of the planographic printing plate 10 (direction orthogonal to the conveyance direction). Also, in each drawing,
The carrying direction is indicated by arrow F, and the width direction is indicated by arrow W as appropriate.

A plurality of conveyors 22 are arranged downstream of the cutter 20. The transfer conveyor 22 is arranged so as to be branched into two in the middle of the transfer path, and a distribution device 24 is arranged at the branching portion. By switching the distribution device 24, the planographic printing plate 10 can be distributed to each conveyance path.

A transport conveyor 2 which constitutes one transport path
A stacking device 26 is provided downstream of 2A. Therefore, with the interleaf paper 14 attached to the planographic printing plate 10, the planographic printing plates 10 are stacked in the thickness direction by the stacking device 26 to form a stacked bundle.

On the other hand, the interleaf separation unit 18 is arranged above the conveyance conveyor 22B constituting the other conveyance path (in the middle of the conveyance path), and the stacking device 26 is provided downstream.

In FIG. 1, one transport conveyor is arranged from the cutter 20 to the sorting device 24 and one transport conveyor is also arranged from the sorting device 24 to the stacking device 26. It is not limited to the above, and a plurality may be arranged at each site.

As shown in detail in FIGS. 2 and 3, the interleaving paper separating unit 18 includes a separating roll 30 arranged in the vicinity of the transport conveyor 22B and a reversing roll arranged in the vicinity above the separating roll 30. 32 and. Both of the separation roll 30 and the reversing roll 32 are oriented such that their axial directions match the width direction of the planographic printing plate 10, and are rotatably held by holding plates 34 arranged on both sides of the transport conveyor 22B in the width direction. Has been done. Further, both the separation roll 30 and the reversing roll 32 are adapted to be rotated by a rotation drive device (not shown). The rotation direction and speed of the separation roll 30 are set so that the peripheral speed thereof matches the conveyance speed of the lithographic printing plate 10 (direction of arrow R1). The direction and speed of rotation of the reversing roll 32 are
The peripheral speed of the contact portion with the separation roll 30 is set so as to match the direction and speed of rotation of the separation roll 30 (arrow R2 direction). In the present embodiment, since the outer diameters of the separation roll 30 and the reversing roll 32 are matched, they rotate at the same angular velocity in the opposite directions.

As can be seen from FIG. 2, a hydraulic cylinder 36 is arranged above the holding plate 34, and the holding plate 34 can be moved up and down at a predetermined timing. Therefore, the separating roll 30 and the reversing roll 32 also move up and down integrally. In these ascending / descending ranges, the interval between the separation roll 30 and the transport conveyor 22B can suck the interleaf sheet 14 by a suction force at a position (approaching position) when the separation roll 30 is most lowered, as described later. The interval is set to a predetermined lifting range so that the interval 14 does not suck the interleaf sheet 14 when it is in the raised position (separated position). The distance between the separation roll 30 and the transport conveyor 22 at the separated position can be set to, for example, about 1 to 100 mm.

As shown in FIGS. 3A to 3C, a plurality of through holes 38 are formed on the outer peripheral surfaces of the separating roll 30 and the reversing roll 32 so as to penetrate these rolls in the thickness direction. . Further, a bottom plate (not shown) is arranged and sealed at one axial end (the end on the far right side in FIG. 2) of the separation roll 30 and the reversing roll 32, and a lid plate 40 is arranged at the other end. Has been done.

The cover plate 40 seals the other end sides of the separating roll 30 and the reversing roll 32, respectively, and independently of them (that is, the separating roll 30 and the reversing roll 32).
It is held by a holder (not shown) so that it always has a constant posture (without rotating together).

As shown in FIGS. 3A to 3C, the cover plate 4
0 from each of the separation roll 30 or the reversing roll 3
Partition plate 4 that passes through the inside of 2 and reaches the bottom plate (not shown)
2 has been extended. The partition plate 42 is formed in a substantially L-shape on the end face, and divides the inside of the separation roll 30 and the reversing roll 32 into two end face fan-shaped regions. These two
The two regions are always in a predetermined posture regardless of the rotation of the separation roll 30 and the reversing roll 32.

Further, a pressure pipe 44 and a pressure reduction pipe 46 are connected to the cover plate 40 in correspondence with each of the two divided areas, and these pressure pipes 4 are also connected.
4. The pressure reducing pipe 46 is connected to the air discharge port and the air suction port of an air pressure adjusting device such as a pump or a blower (not shown). Then, of the two regions inside the separation roll 30, air is sucked and decompressed from a region from the downstream side in the transport direction to the upper end in the direction of the arrow R1 (a relatively large region), and a small region is It is designed to send in air and pressurize. Therefore, these two regions are the depressurization region 48 and the pressurization region 50, respectively. Similarly, in the two areas inside the reversing roll 32, a relatively large area is a decompression area 52 into which air is sucked, and a small area is a pressurization area 54 into which air is sent.

As described above, since the depressurizing regions 48 and 52 and the pressurizing regions 50 and 54 are provided inside the separating roll 30 and the reversing roll 32, respectively, the depressurizing regions 48 and 52 are provided.
Air is sucked from the through hole 38 corresponding to. Of the surfaces of the separation roll 30 and the reversing roll 32, the portions corresponding to the reduced pressure regions 48 and 52 are in a reduced pressure suction state by this suction force, and the interleaf paper 14 can be sucked. On the other hand, air is ejected from the through holes 38 corresponding to the pressure areas 50 and 54. Therefore, of the surfaces of the separation roll 30 and the reversing roll 32, the portion corresponding to the pressure region 50 is in the pressure blowout state, and the slip sheet 1
The suction of 4 is released.

As shown in FIG. 1, a transport conveyor 56 is arranged on the side of the reversing roll 32 so as to correspond to the pressurizing area 54, and a slip sheet stacking device 28 is provided further downstream thereof. There is.

Next, the interleaving paper separating unit 18 of the present embodiment.
The process of removing the interleaf sheet 14 from the planographic printing plate 10 and the operation of the interleaf sheet separating unit 18 will be described below.

As shown in FIG. 1, the lithographic printing plate 10 cut into a predetermined size by a cutting device such as a cutter 20 and formed into a sheet has a conveying conveyor 22 with the interleaving paper 14 stuck thereto. The distribution device 24 is reached. The sorting device 24 sorts the planographic printing plates 10 according to whether it is necessary to separate the interleaving paper 14 from the planographic printing plates 10. That is, the planographic printing plates 10 that do not require separation of the interleaf paper 14 are distributed to the upper conveyor 22A in FIG. 1 and stacked in the thickness direction by the stacking device 26. On the other hand, the planographic printing plate 1 in which the interleaving paper 14 needs to be removed
0 is distributed to the lower transport conveyor 22B in FIG.

As shown by the chain double-dashed line in FIG. 3A, the separating roll 30 and the reversing roll 32 are in the separated position when it is not necessary to separate the interleaving paper 14 from the lithographic printing plate 10,
Although stopped (or rotated at a low speed), when the planographic printing plate 10 that needs to separate the interleaving paper 14 approaches, the hydraulic cylinder 36 is driven to lower the separation roll 30,
It is the approaching position (see the position indicated by the solid line in FIG. 3A). Further, upon receiving a rotational driving force from a rotation driving device (not shown), the separation roll 30 and the reversing roll 32 rotate in a predetermined direction (arrow R1 direction and arrow R2 direction) and speed, respectively.

A pump (not shown) is driven to reduce the pressure in the depressurizing regions 48 and 52 and to pressurize the pressurizing regions 50 and 54 in the separating roll 30 and the reversing roll 32.

In this state, when the tip of the planographic printing plate 10 reaches below the separation roll 30, the through hole 38 is formed in this portion.
Corresponds to the depressurized area 48 and exerts suction force by sucking air from the outside, so that the slip sheet 14 is sucked by this suction force.

Then, when the planographic printing plate 10 is further conveyed while the interleaf sheet 14 is sucked and the separation roll 30 rotates, the interleaf sheet 14 is fed from the leading end side thereof as shown in FIG. 3B. It is gradually separated from the planographic printing plate 10 and is temporarily held by being wound around the surface of the separation roll 30.

Further, when the tip of the interleaving paper 14 reaches the contact portion T with the reversing roll 32 due to the rotation of the separation roll 30, the through hole 3 of the separation roll 30 starts from this contact portion T.
8 is the position corresponding to the pressure area 50,
Is separated from the separation roll 30 by receiving the air ejection force from the through hole 38. On the other hand, in the contact portion T, the through hole 38 of the reversing roll 32 corresponds to the depressurized area 52 and exerts a suction force. Therefore, the interleaf paper 14 separated from the separation roll 30 is gradually sucked from the tip end side thereof to the reversing roll 32 and wound.

When the through hole 38 sucking the interleaving paper 14 reaches the position corresponding to the pressurizing area 54 by the rotation of the reversing roll 32, the jetting force of the air from the through hole 38 is received in this portion. The interleaving paper 14 is separated from the reverse roll 32. Then, the slip sheet 14 is conveyed by the conveyer conveyor 56 and accumulated by the slip sheet accumulating device 28.

On the other hand, the planographic printing plate 10 from which the interleaf paper 14 has been separated is further conveyed by the conveyor 22B and accumulated by the accumulating device 26.

When the slip sheet 14 is subsequently separated from the lithographic printing plate 10, since the slip sheet 14 is separated from the separation roll 30 and returned to the initial state, the same operation as above is repeated. , Continuous processing is possible. When it is not necessary to separate, the hydraulic cylinder 36 raises the separating roll 30 and the reversing roll 32 and stops (or decelerates) the rotation thereof.

As described above, in the interleaf sheet separating unit 18 of the present embodiment, the interleaf sheet 14 is separated while conveying the lithographic printing plate 10, so that the workability is improved and the number of processed sheets per unit time (productivity) is increased. Will also be higher.

FIG. 4 shows a lithographic printing plate processing line 66 according to the second embodiment of the present invention. Also, FIG.
6 and 6 show an interleaf paper separating unit 68 of the second embodiment. Hereinafter, the same components as those of the first embodiment,
The same reference numerals are given to members and the like, and description thereof will be omitted.

In the interleaf paper separating unit 68 of the second embodiment, the reversing roll 32 of the first embodiment is not arranged. Further, the partition plate 72 is formed more acutely than in the first embodiment when viewed from the end face, and has a fan-shaped shape (a central angle of an acute angle) extending from the transport conveyor 22B in the rotation direction of the separation roll 30 (direction of arrow R1). Area) has decompression area 4
It is supposed to be 8. Further, the interleaf paper stacking device 28 is arranged corresponding to the end portion of the depressurized area.

In the interleaf sheet separating unit 68 of the second embodiment having such a configuration, it is not necessary to separate the interleaf sheet 14 from the planographic printing plate 10 as in the interleaf sheet separating unit 18 of the first embodiment. In this case, it is in the separated position, but when it is necessary to separate, the hydraulic cylinder 36 is driven to descend to the separated position. And the separation roll 30
The interleaving paper 14 is separated from the planographic printing plate 10 and partially wound around the separating roll 30, but the through hole 38 in the portion that adsorbs the interleaving paper 14 is located in the pressurizing region 50 by the rotation of the separating roll 30. When it reaches, the interleaf paper 14 passes through the through hole 38.
The interleaving paper 14 receives the jetting force of air from the separating roll 3
Separated from zero. The slip sheet 14 is the slip sheet stacking device 2
8 are collected.

As described above, the interleaf sheet separating unit 68 of the second embodiment does not require the reversing roll 32 as compared with the interleaf sheet separating unit 18 of the first embodiment, so that the structure can be simplified.

FIG. 7 shows an interleaf paper separating unit 118 according to the third embodiment of the present invention. Hereinafter, the same components and members as those in the first embodiment or the second embodiment will be designated by the same reference numerals and the description thereof will be omitted. Further, the overall configuration of the processing line according to the third embodiment is the same as the processing line 16 according to the first embodiment or the processing line 66 according to the second embodiment.
Since only the interleaving paper separating unit 118 is different, the overall image of the processing line is not shown.

In the interleaf paper separating unit 118 of the third embodiment, the separating roll 30 and the reversing roll 32 of the first embodiment are used.
Is not provided, and instead of these, an endless separation belt 120 is provided. The separation belt 120 is 2
The roller 122 is wound around one roller 122, and receives a rotational driving force from a rotational driving source (not shown) and circulates in a direction along the conveyance direction of the planographic printing plate 10. Further, the separation belt 120 has a through hole 38 of the first embodiment.
Similarly, a plurality of through holes (not shown in FIG. 7) penetrating the separation belt 120 in the thickness direction are formed.

Inside the separation belt 120, the static eliminator 124 and the decompression device 12 are contacted with the lower surface of the separation belt 120 in order from the upstream side in the transport direction of the planographic printing plate 10.
6 is arranged, and the pressure device 128 is arranged so as to contact the upper surface of the separation belt 120.

The static eliminator 124 eliminates the charging of the interleaf paper 14 to reduce the electrostatic force on the planographic printing plate 10.
The decompression device 126 is connected to a pump (not shown) and substantially acts as the decompression region of the first and second embodiments. That is, when the through hole of the separation belt 120 reaches the position corresponding to the pressure reducing device 126,
The suction force is exerted by sucking air from the through hole, and the slip sheet 14 is sucked. The pressurizing device 128 is also connected to a pump (not shown), and substantially the first embodiment and the second embodiment.
It acts as the pressure area of the embodiment. Separation belt 1
When the through hole 20 reaches the position corresponding to the pressurizing device 128, air is blown out from the through hole, and the suction state of the slip sheet 14 is released.

On the outer side of the separation belt 120 and on the downstream side in the transport direction of the planographic printing plate 10, the separation belt 120 is provided.
A blowing pipe 130 that blows air at a predetermined timing is arranged between the carrier and the conveyor 22B. Further, above the separation belt 120, a separation claw 132 that separates the slip sheet 14 from the separation belt 120 is arranged.

The interleaving paper separating unit 118 includes the separating belt 1
20, roller 122, static eliminator 124, pressure reducing device 12
6, a spray tube 130, a pressure device 128, and a separation claw 132. Further, these are integrally held by a holder (not shown), and are moved up and down between the approaching position and the separating position by driving the hydraulic cylinder, as in the first embodiment.

In the interleaf sheet separating unit 118 of the third embodiment having such a configuration, the planographic printing plate is similar to the interleaf sheet separating unit 18 of the first embodiment and the interleaf sheet separating unit 68 of the second embodiment. When it is not necessary to separate the interleaving paper 14 from the sheet 10, it is in the separated position, but when it is necessary to separate it, the hydraulic cylinder is driven, and the separation belt 120, the roller 122, the static eliminator 124, and the decompression device. Device 12
6, the spray pipe 130, the separation claw 132, etc. descend to the separation position. Then, the planographic printing plate 10 to which the slip sheet 14 is attached
When the charge reaches the lower side of the static eliminator 124, the interleaf paper 14 is neutralized, and the electrostatic force on the planographic printing plate 10 is reduced.

Next, when the lithographic printing plate 10 reaches below the pressure reducing device 126, the interleaf paper 14 is separated from the lithographic printing plate 10 by the suction force of air and is wound around the separation belt 120. The front end of the interleaf paper 14 has a roller 122 on the downstream side in the transport direction.
When reaching the vicinity, the suction force does not act because the pressure reducing device 126 is not arranged in this portion, but the blowing pipe 13
Since the air from 0 flows in between the planographic printing plate 10 and the interleaf paper 14, the interleaf paper 14 receives the upward force and is kept in contact with the separation belt 120.

When the separation belt 120 circulates and the slip sheet 14 reaches the position corresponding to the pressurizing device 128, air is blown through the through hole in this portion, so that the suction state of the slip sheet 14 is released. .

Further, the separation belt 120 circulates, and the interleaving paper 1
When the leading end of 4 reaches the separation claw 132, the separation claw 132 enters between the separation belt 120 and the interleaf paper 14, so that the interleaf paper 14 is separated from the separation belt 120. Finally, the interleaving sheet stacking device 28 stacks the sheets.

As described above, also in the interleaf sheet separating unit 118 of the third embodiment, like the interleaf sheet separating unit 18 of the first embodiment and the interleaf sheet separating unit 68 of the second embodiment.
The slip sheet 14 can be reliably and continuously separated from the planographic printing plate 10.

The static eliminator 124 of the third embodiment is
The slip sheet 14 may be removed from the planographic printing plate 10 by using the slip sheet separation unit 18 of the first embodiment or the slip sheet separation unit 68 of the second embodiment to remove electricity. Similarly, the blowing tube 130 and the separation claw 132 of the third embodiment are replaced with the interleaf paper separation unit 18 and the second separation paper of the first embodiment.
It may be used for the interleaf separation unit 68 of the embodiment.

In each of the above-mentioned embodiments, the concrete constitution of each element, member, etc. constituting the interleaf separation unit 18, 68, 118 is not particularly limited, but for example, the separation roll of the first embodiment and the second embodiment. As 30 or the reversing roll of the first embodiment, one having an outer diameter of about 100 to 400φ can be used. Also, these rolls and the third
As the material of the separation belt 120 of the embodiment, the interleaving paper 14 is used.
It is preferable that at least the surface of the lithographic printing plate 10 is made of an elastic material such as rubber so that the surface of the lithographic printing plate 10 is not damaged even when pressed against the surface of the lithographic printing plate 10.

The through holes formed in the separating roll 30, the reversing roll 32, and the separating belt 120 have an inner diameter of 0.
It can be set to 1 to 10φ. When the aperture ratio of the through holes is 10 to 50%, preferably 20 to 30%,
A large suction force can be exerted, and the shapes of the separation roll 30, the reversing roll 32, and the separation belt 120 can be stably maintained.

The pressure in the depressurized area is not particularly limited as long as the interleaf sheet 14 can be adsorbed, but in order to surely adsorb the interleaf sheet 14 with less energy, -49Pa to -4 is used.
The range of 900 Pa is preferable, and -98 Pa to -1960.
The range of Pa is more preferable.

The pressure in the pressurizing region is not particularly limited as long as the once-adsorbed interleaf paper 14 can be separated by blowing air, but in order to reliably separate it with less energy, it is 0.98 Pa to 980 Pa. The range is preferable, and the range of 9.8 Pa to 98 Pa is more preferable.

Further, for example, the planographic printing plate 10 for which it is necessary to separate the interleaf paper 14 is marked with a laser or the like, and a detection device for detecting the marking is provided as a part of the processing line 16 (at least the interleaf paper separation unit). It is also possible to adopt a configuration provided on the upstream side). With this configuration, the interleaf paper separating units 18, 68, 118 can be driven based on the information detected by the detection device.

The slip sheet 14 is not particularly limited in specific constitution as long as it can protect the coating film (image forming surface) of the lithographic printing plate 10. For example, a paper containing 100% wood pulp or 100 wood pulp is used. %, Papers not using synthetic pulp, and papers having a low-density polyethylene layer provided on the surface of these papers. In particular, paper that does not use synthetic pulp has a low material cost, and thus the interleaf paper can be manufactured at low cost. More specifically,
30-60g / m2 basis weight made from bleached kraft pulp
² , density 0.7 to 0.85 g / cm ³ , moisture 4 to 8%,
Examples include PH4 to PH6 interleaving paper, but the present invention is not limited to this.

Further, as the adherend separating device of the present invention,
The invention is not limited to separating the slip sheet 14 from the planographic printing plate 10. That is, the present invention can be widely applied to the case where the adhered material is separated from the sheet material to which the adhered material is adhered.

[0076]

EXAMPLES Next, the present invention will be described more specifically by way of examples, but the present invention is not limited to these examples. Example 1 In Example 1, the interleaf sheet 14 was separated from the lithographic printing plate 10 using the interleaf sheet separating unit 68 of the first embodiment shown in FIGS. 2 and 3.

First, a strip-shaped aluminum sheet having a thickness of 0.3 mm and a width of 1000 mm was grained, anodized and silicate-treated, and further coated with a photosensitive solution at 3 g / m ² and dried to form a photosensitive layer. A band-shaped interleaving paper 14 having a basis weight of 40 g / m ² and a width of 1000 mm is electrostatically adhered to the aluminum web 12 and then conveyed by a conveyor 22 shown in FIG.
The sheet was cut into a length of m to obtain a sheet-shaped lithographic printing plate 10 to which a slip sheet 14 was attached. Furthermore, this planographic printing plate 10
Was distributed by the distribution device 24, and the slip sheet 14 was separated from the planographic printing plate 10 as needed.

The separating roll 30 and the reversing roll 32 were both rubber rolls having an outer diameter of 300φ and a hardness of 60 degrees, and were held by the holding plate 34 in a state of being in contact with each other. The diameter of the through holes 38 was φ1, and the hole density was 1 piece / cm ² . The pressures in the depressurization region 48 and the pressurization region 50 are −981 respectively.
Pa and 49 Pa.

After the aluminum web 12 is cut by the cutter 20 to obtain the sheet-shaped planographic printing plate 10, the separating roll 30 and the reversing roll 32 are rotated at a peripheral speed of 30 m / min by a rotation driving device (not shown). At the same time, the hydraulic cylinder 36 was driven to lower the rolls to the approach position while maintaining the contact state of these rolls. At the approaching position, the separation roll 30 moves the conveyor 22
Lightly touched B.

In this state, when the planographic printing plate 10 to which the slip sheet 14 is attached passes between the separation roll 30 and the conveyor 22B, the slip sheet 14 is adsorbed by the separation roll 30 and is applied. Separated from. The tip of the slip sheet 14
When reaching the contact portion between the separation roll 30 and the reversing roll 32, the adsorption by the separation roll 30 is released, and the reversing roll 32 is adsorbed by the reversing roll 32.
I changed to. Further, the slip sheet 14 was transferred from the reversing roll 32 to the transport conveyor 56 and accumulated by the slip sheet stacking device 28.

On the other hand, the planographic printing plate 1 in which the interleaf paper 14 is separated
0 was continuously conveyed by the conveyor 22B and accumulated by the accumulator 26. [Embodiment 2] In Embodiment 2, as in Embodiment 1, the interleaf paper separating unit 68 of the first embodiment shown in FIGS. 2 and 3 is used to separate the interleaf paper 14 from the lithographic printing plate 10. However, the planographic printing plate 10 had a configuration different from that of Example 1.

First, a strip-shaped aluminum having a thickness of 0.2 mm and a width of 1200 mm was grained, anodized and silicate-treated, and further coated with a photosensitive solution at 3 g / m ² and dried to form a photosensitive layer. A band-shaped interleaving paper 14 having a basis weight of 40 g / m ² and a width of 1200 mm is electrostatically adhered to the aluminum web 12 and then conveyed by a conveyor 22 shown in FIG.
The sheet was cut into a length of m to obtain a sheet-shaped lithographic printing plate 10 to which a slip sheet 14 was attached. Furthermore, this planographic printing plate 10
Was distributed by the distribution device 24, and the slip sheet 14 was separated from the planographic printing plate 10 as needed.

The separating roll 30 and the reversing roll 32 were both rubber rolls having an outer diameter of 300φ and a hardness of 60 degrees, and were held by a holding plate 34 so that a gap of 1 mm was formed between them. The diameter of the through holes 38 is φ5, and the hole density is 1 piece / cm ^2.
And The pressures in the depressurization area 48 and the pressurization area 50 were −981 Pa and 49 Pa, respectively.

Then, after the aluminum web 12 is cut by the cutter 20 to obtain the sheet-shaped planographic printing plate 10, the separating roll 30 and the reversing roll 32 are rotated at a peripheral speed of 10 m / min by a rotation driving device (not shown). At the same time, the hydraulic cylinder 36 was driven to lower the rolls to the approach position while maintaining the contact state of these rolls. At the approaching position, the separation roll 30 moves the conveyor 22
Lightly touched B.

In this state, when the planographic printing plate 10 to which the slip sheet 14 is attached passes between the separation roll 30 and the conveyor 22B, the slip sheet 14 is adsorbed by the separation roll 30 and the planographic printing plate 10 is adsorbed. Separated from. The tip of the slip sheet 14
When reaching the contact portion between the separation roll 30 and the reversing roll 32, the adsorption by the separation roll 30 is released, and the reversing roll 32 is adsorbed by the reversing roll 32.
I changed to. Further, the slip sheet 14 was transferred from the reversing roll 32 to the transport conveyor 56 and accumulated by the slip sheet stacking device 28.

On the other hand, the planographic printing plate 1 in which the interleaf paper 14 is separated
0 was continuously conveyed by the conveyor 22B and accumulated by the accumulator 26.

[0087]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure, it is possible to easily and highly efficiently separate an adhesive article from a sheet material to which the adhesive article is attached.

[Brief description of drawings]

FIG. 1 is a schematic view partially showing a processing line of a lithographic printing plate to which an interleaf separation unit according to a first embodiment of the present invention is applied.

FIG. 2 is an enlarged perspective view of the interleaf paper separating unit according to the first embodiment of the present invention.

FIG. 3 is a step (A) of separating a slip sheet from the planographic printing plate by the slip sheet separating unit according to the first embodiment of the present invention.
It is explanatory drawing shown in order to (C).

FIG. 4 is a schematic view partially showing a processing line of a lithographic printing plate to which an interleaf separation unit according to a second embodiment of the present invention is applied.

FIG. 5 is an enlarged perspective view showing an interleaving paper separating unit according to a second embodiment of the present invention.

FIG. 6 shows a step (A) of separating a slip sheet from the planographic printing plate by the slip sheet separating unit according to the second embodiment of the present invention.
It is explanatory drawing shown in order to (C).

FIG. 7 shows a step (A) of separating the interleaf sheet from the planographic printing plate by the interleaf sheet separating unit according to the third embodiment of the present invention.
It is a side view shown to (B).

[Explanation of symbols]

10 Planographic printing plate (sheet material) 12 Aluminum web 14 Synthetic paper (adhesive) 16 Lithographic printing plate processing line 18 Interleaf paper separation unit (adhesive separation device) 22B Transport conveyor (transport device) 24 Sorting device 30 Separation roll (vacuum adsorption device, separation means) 32 reverse roll 36 hydraulic cylinder (moving device) 48 Decompression area 50 Pressurized area 52 Decompression area 54 Pressurized area 66 Planographic printing plate processing line 68 Interleaving paper separation unit (adhesive separation device) 118 Interleaving paper separation unit (adhesive separation device) 126 Decompression device 128 pressure device

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3F053 EA01 EC02 ED17 LA01 LB01                       LB08 LB10                 3F108 JA02 JA05

Claims (6)

[Claims] 1. A transport device for transporting a sheet material to which an adhesive material is attached in a certain direction, and a separating means for separating the adhesive material from the sheet material while the sheet material is being conveyed by the transportation device. An adherent separating device, comprising: 2. The vacuum sticking device according to claim 1, wherein the separating means is a vacuum suction device that sucks the sticking material by a suction force by depressurizing air and separates the sticking material from the sheet material. Kimono separation device. 3. The decompression adsorption device, wherein at least an adsorption portion for adsorbing the adhered material is movable in the conveying direction in synchronization with the sheet material.
The adhered material separation device according to. 4. The adhered material separation device according to claim 2, further comprising a releasing means for releasing the adhered material adsorbed by the reduced pressure adsorption device from the reduced pressure adsorption device. apparatus. 5. A moving device for moving the separating means between an approach position where the adhesive material can be separated by approaching the sheet material and a spaced position where the adhesive material is separated from the sheet material and the adhesive material is not separated. The adhesive-separation device according to any one of claims 1 to 4, further comprising: 6. The sorting device according to claim 1, wherein the transport device operates a sorting device that sorts the sheet material according to whether or not it is necessary to separate the adhered material. Sticker separation device.