JP4011935B2 - Cutting blade mounting structure and strip cutting device - Google Patents

Description

もちろん、ハウジング４０に対する上側アーバ軸４４の位置精度と絶縁性とを満たす材料であれば、上記のものに限定されない。例えば、セラミック以外の高強度樹脂でもよい。絶縁部材５８の圧縮強度としては、９８００Ｎ／ｃｍ²以上であることが好ましい。
【００５２】
また、本発明では、上刃２２が取り付けられた上側アーバ軸４４と、下刃２４が取り付けられた下側アーバ軸８０との間に絶縁部材５８が配置されていればよい。従って、例えば、下側アーバ軸８０とフレーム３８との間に絶縁部材が配置されている（実質的に、上記実施形態のものと比較して、少なくとも絶縁に関しては上下関係が逆になっている）ようなものでもよい。さらに、フレーム３８を上下に分割し、その間に絶縁材料を介在させることで、上刃２２と下刃２４とが絶縁されるような構成でもよい。
【００５３】
上側アーバ軸４４を軸方向に移動させる手段としても、上記したハンドル７６を作業者が回転させるものに限られない。例えば、電動サーボモータやいわゆるステッピングモータ等を使用し、より高精度で且つ容易に、上刃２２の位置合わせを行えるようにしてもよい。
【００５４】
さらには、刃の設定位置への移動、位置合わせを、図示しない制御装置からの指示に基づいて、自動で行うようにすることもできる。たとえば、上刃２２と下刃２４とが接触したとき、位置検出器をゼロリセットし、モータ（電動サーボモータやステッピングモータ等）が接触位置を認識するようにしてもよい。事前に上刃２２の送り量を制御装置に入力しておき、刃の接触位置から所定の移動量で上刃２２を移動させるようにすることも可能である。加えて、位置検出器によって、最終的な上刃２２の移動量を検知し表示するようにしてもよい。このような構成とすることで、上刃２２の位置合わせ作業を省力化できると共に、より高精度で位置合わせできる。特に、電動サーボモータやいわゆるステッピングモータ等を使用することで、より高精度に位置合わせできる。
【００５５】
また、上記したような、感光層が塗布されてコイル状に巻き取られたアルミウエブ１２を順次巻き出して加工する加工ライン９０だけでなく、感光層を塗布した後、巻き取ることなく連続して加工する加工ラインや、加工後にコイル状に巻き取る加工ライン等、種々の工程を組み入れた加工ラインに、また、マスターシートに切断後、最終出荷形態の寸法となるようシート状に切断する加工に、本発明を適用することができる。
【００５６】
【発明の効果】
本発明は上記構成としたので、低コストでシャフトに裁断刃を取付可能で、作業負担も低減できる。
【図面の簡単な説明】
【図１】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを備える平版印刷版の加工ラインを示す斜視図である。
【図２】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを示す断面図である。
【図３】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを示す平面図である。
【図４】本発明の一実施形態の裁断刃取付構造が採用されたスリッタの回路を示す接続すである。
【図５】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを部分的に拡大して示す断面図である。
【図６】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを部分的に拡大して示す断面図である。
【図７】本発明の一実施形態の裁断刃取付構造が採用されたスリッタを部分的に拡大して示す断面図である。
【図８】本発明の一実施形態の裁断刃取付構造が採用されたスリッタにおいて上刃の位置合わせを行う工程を（Ａ）〜（Ｃ）へと順に示す説明図である。
【図９】従来のスリッタを示す概略図である。
【符号の説明】
１０ スリッタ
２２ 上刃
２４ 下刃
４４ 上側アーバ軸（シャフト）
５８ 絶縁部材
６０ 絶縁円板（絶縁部材）
６２ 絶縁筒体（絶縁部材）
８０ 下側アーバ軸（シャフト）
９０ 加工ライン（帯板裁断装置）
１１２ 電源（接触検知手段）
１１４ ランプ（接触検知手段）
１１６ 導線（接触検知手段）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cutting blade mounting structure and a strip cutting apparatus.
[0002]
[Prior art]
FIG. 9 shows the structure of a slitter 302 which is an example of a conventional strip cutting apparatus.
[0003]
In this slitter 302, a holder 308 of a cutter 306 provided on an upper arbor shaft 304 is attached via an insulating sleeve 310 using ceramics or the like as a material. Further, a conductor 314 is connected between the holder 308 of the arbor shaft 304 and the lower arbor shaft 312, and an appropriate power source 316 is connected to the conductor 314, and contact between the cutter 306 and the cutter 322 is made external. A pilot lamp 318 is provided for notification. Furthermore, a dial gauge 320 is prepared that detects the amount of movement of the arbor shaft 304 in the axial direction and indirectly measures the contact pressure of the cutters 306 and 322 based on the detected value.
[0004]
In this slitter 302, when the upper arbor shaft 304 is moved in the right direction of the drawing and the upper cutter 306 contacts the lower cutter 322, the pilot lamp 318 is lit, so at this point, the dial gauge 320 is read. Set to zero. Here, if the standard of the relationship between the contact pressure between the cutters 306 and 322 and the dial gauge 320 is set by experiment or the like, the magnitude of the contact pressure can be obtained numerically from the reading of the dial gauge 320. .
[0005]
However, in the slitter 302, the cutter 306 is attached to the arbor shaft 304 via the insulating sleeve 310, so the mounting position accuracy of the cutter 306 is affected by the shape and mounting accuracy of the insulating sleeve 310. In general, ceramics or the like is used for the insulating sleeve 310 as described in the above publication from the viewpoints of insulation and shape stability. That is, it is necessary to process a material that is difficult to process with high accuracy, and the cost required for the processing increases.
[0006]
Further, since the insulating sleeve 310 needs to be detached and attached every time the cutter 306 is replaced or the position is changed, it is necessary to work so as not to cause breakage or deformation, and the work load is increased.
[0007]
[Problems to be solved by the invention]
In view of the above facts, an object of the present invention is to obtain a cutting blade mounting structure and a band plate cutting device that can attach a cutting blade to a shaft at a low cost and can reduce the work load.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, at least a pair of cutting blades for sandwiching and cutting a band plate in the thickness direction, at least a pair of shafts in which the pair of cutting blades are respectively movable, and the shaft are held. It has a housing and an insulating member which is arranged between the housing and the shaft and insulates the cutting blade.
[0011]
That is, in this cutting blade mounting structure, the insulating member that insulates the cutting blade is disposed between the shaft and the housing that holds the shaft, and is disposed between the cutting blade and the shaft. Not. For this reason, the insulating member does not require the mounting accuracy of the cutting blade to the shaft, it is not necessary to process the insulating member with high accuracy, and the cutting blade can be easily processed directly on the shaft or metal or the like. Since it can fix via a member, it becomes low cost. In particular, when the cutting blade is detached or replaced, it is not necessary to remove the insulating member, so that management for preventing damage is not required, and the work load is reduced. Since the same insulating member can be used over a long period of time, a substantial amount of material used for the insulating member can be reduced.
[0012]
In order to align the cutting blade attached to the shaft by the cutting blade mounting structure according to claim 1 in the axial direction of the shaft, for example, only when the cutting blades contact each other, the closed circuit includes the cutting blade. Be configured. When the cutting blades are brought close to each other and brought into contact with each other, it is possible to easily know that they are in contact by detecting this conduction state. Therefore, the cutting blade can be moved in the axial direction with reference to the contact position, and the alignment can be easily performed, so the work load is reduced.
[0013]
The closed circuit configured when the cutting blade comes into contact may be configured such that a power source and an alarm (for example, a lamp or a buzzer) are connected in series between the cutting blades only when the cutting blade is aligned. However, as described in claim 2 , if the cutting blade mounting structure is configured to include contact detection means for detecting the contact state of the pair of cutting blades by conduction, the alignment of the cutting blades is achieved. In this case, it is not necessary to construct a closed circuit one by one, so that the work load can be further reduced.
[0015]
In invention of Claim 3, it has the conveyance means which conveys a strip in a fixed direction, and the cutting blade attached to the shaft by the cutting blade attachment structure of Claim 1 or Claim 2 , It is characterized by the above-mentioned. And
[0016]
Therefore, it can cut with a cutting blade, conveying a strip in a fixed direction.
[0017]
In addition, since the cutting blade is attached to the shaft by the cutting blade mounting structure according to claim 1 or 2 , the cutting blade is reduced in cost, and the work load of the alignment and attachment work of the cutting blade is reduced. .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a lithographic printing plate processing line 90 including a slitter 10 employing the cutting blade mounting structure of one embodiment of the present invention. In general, a lithographic printing plate is obtained by performing a surface treatment such as graining, anodizing, silicate treatment, or other chemical conversion treatment on a support such as a sheet-shaped or coil-shaped aluminum plate alone or in combination, and then photosensitive. A surface treatment layer is formed by applying and drying a liquid to produce a web, and the web is manufactured by a procedure of cutting to a desired size by the processing line 90 of this embodiment. The produced lithographic printing plate is subjected to plate making processes such as exposure, development, and gumming, and used for printing.
[0019]
The lithographic printing plate 30 obtained by cutting with the processing line 90 of the present invention is a stage before the processing (exposure, development, etc.) necessary for printing is performed, and in some cases, the lithographic printing plate precursor or Sometimes called a lithographic printing plate.
[0020]
The aluminum plate as the support of the lithographic printing plate is, for example, JIS 1050 material, JIS 1100 material, JIS 1070 material, Al—Mg alloy, Al—Mn alloy, Al—Mn—Mg alloy, Al—Zr alloy, Al -An Mg-Si alloy or the like can be applied. In the manufacturing process of an aluminum plate at a manufacturer, an aluminum ingot that conforms to the above-mentioned standard is manufactured, the aluminum ingot is hot-rolled, and then subjected to a heat treatment called annealing, if necessary, by cold rolling. Finished with a strip-shaped aluminum plate.
[0021]
The aluminum plate is subjected to surface treatment as necessary, and further, a desired coating solution is applied to obtain an aluminum web 12 for a lithographic printing plate.
[0022]
This aluminum web 12 is processed into a desired size by a processing line 90, and a lithographic printing plate 30 that can be used for printing is obtained.
[0023]
Moreover, the lithographic printing plate 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 of the present invention include the following embodiments (1) to (11).
(1) An embodiment 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) An embodiment 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 of a compound that generates radicals upon irradiation with laser light, a layer containing an alkali-soluble binder, and a polyfunctional monomer or prepolymer, and an oxygen blocking layer.
(4) An embodiment in which the photosensitive layer is composed of 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 polymerization layer containing a polyfunctional monomer and a polyfunctional binder, a layer containing silver halide and a reducing agent, and an oxygen blocking layer.
(6) A mode in which the photosensitive layer includes two layers of a layer containing a novolac resin and naphthoquinone diazide 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 2 to 3 layers including a laser light absorbing layer to be 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 that generates sulfonic acid or carboxylic acid by an acid in the side chain, and an acid generator by absorbing visible light The aspect containing the compound which gives energy to.
(10) The 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 crosslinked structure with itself or other molecules in the layer and an alkali-soluble binder.
[0024]
As shown in FIG. 1, on the upstream side (upper right side in FIG. 1) of the processing line 90, a feeder 14 that sequentially feeds webs wound in a roll shape is disposed. The long aluminum web 12 sent out from the sending machine 14 is curled and corrected by the leveler 15, and when it reaches the feeding roller 16, the interleaf paper 18 is stuck together and brought into close contact by charging to reach the notch 20.
[0025]
The notch 20 has a punched portion in the aluminum web 12 so that the upper blade 22 and the lower blade 24 of the slitter 10 can move in the width direction of the aluminum web 12 at the punching position. Thereby, it is possible to change the cutting width of the aluminum web 12 while continuously cutting the aluminum web 12 and the interleaf paper 18 together.
[0026]
The cutting waste generated by the cutting by the slitter 10 is sent to a chopper (not shown) and cut into small pieces, and then collected in a collection box 84 by a collection conveyor 82. With suction processing.
[0027]
In the processing line 90 of this embodiment, the slitter 10 and peripheral members (not shown) constitute a cutting unit 21, and two sets of this cutting unit 21 are prepared. Thereby, setup operations such as blade replacement can be performed by the unused cutting unit 21 outside the line, and the line stop time of the processing line 90 can be minimized.
[0028]
In this way, the length of the aluminum web 12 having a predetermined cutting width is detected by the length measuring device 26, and the cutter 28 cuts the aluminum web 12 at the instructed timing, and the lithographic plate of the set size is obtained. The printing plate 30 is manufactured.
[0029]
Next, the planographic printing plate 30 is sent to the stacking unit 34 by the conveyor 32 and stacked a predetermined number of times to form a stack 31. In the stacking unit 34, a protective sheet (generally referred to as “hit ball”) made of cardboard or the like can be disposed on the upper or lower side or one side of the stack 31.
[0030]
Then, the stack 31 is stacked on the pallet 33 through the transport unit 35. Then, it is sent to a storage such as a rack warehouse or a packaging process, and packaged with a packaging material (tape, interior material, exterior material, etc.). It is also possible to stack on a skid (flat stand skid, vertical skid, etc.) for an automatic plate making machine. In the case of stacking and packaging on these skids, an accumulation device for accumulating the bundles 31 on the skids may be provided in the processing line 90 and directly accumulated in the skids in the processing line 90.
[0031]
Thus, the planographic printing plate 30 is packaged and shipped, but depending on the packaging form, the interleaf paper 18 and other packaging materials may be omitted.
[0032]
As shown in FIGS. 2 and 3, the slitter 10 has a frame 38 disposed so as to be located outside the width direction (arrow W direction) of the aluminum web 12 to be conveyed. A housing 40 is attached to the upper portion of the frame 38 via a rail 64, and a fixing portion 40 </ b> F is provided in the housing 40. A shaft support hole 42 is formed in the fixed portion 40F, and the upper arbor shaft 44 is fixed via an insulating member 58. The housing 40 is movable in the axial direction of the upper arbor shaft 44 by a rail 64.
[0033]
The upper blade 22 is attached to the upper arbor shaft 44 via an attachment member 46. The mounting member 46 includes a bearing 48, spacers 50 and 52, and an upper blade retainer 54, and the upper blade 22 is rotatable with respect to the upper arbor shaft 44 and is mounted so as not to drop accidentally. ing. The upper blade 22 can be removed and replaced by loosening the mounting screw 56 and removing the spacer 50 and the upper blade holder 54.
[0034]
The insulating member 58 includes an insulating disc 60 disposed on the axial end surface of the upper arbor shaft 44 and an insulating cylinder 62 disposed on the outer peripheral surface in the vicinity of the axial end surface. The upper arbor shaft 44 and the housing 40 are insulated by the insulating member 58. Therefore, the upper blade 22 is also insulated from the frame 38.
[0035]
A precision feed screw 66 is attached to the frame 38. The tip of the precision feed screw 66 is inserted into the mounting hole 68 of the housing 40 and is attached to the mounting portion 40 </ b> A of the housing 40 by a nut 70. A male screw 72 formed in the vicinity of the head of the precision feed screw 66 is screwed with a female screw 74 formed on a screwing piece 38A of the frame 38. By rotating the handle 76, the housing 40 is moved to the frame. 38, the upper arbor shaft 44 can be moved in the axial direction. Due to the movement of the upper arbor shaft 44, the upper blade 22 also moves in the width direction (arrow W direction) of the aluminum web 12.
[0036]
A lower arbor shaft 80 is rotatably attached to the lower portion of the housing 40 via a bearing 78. The lower blade 24 is attached to the lower arbor shaft 80 via an attachment member 86. The lower blade 24 is attached by a spacer 88 and a lower blade holder 92 so as to rotate integrally with the lower arbor shaft 80 and not to fall off accidentally. The lower blade 24 can be detached and replaced by loosening the mounting screw 94 and removing the lower blade retainer 92 and the spacer 88. Furthermore, even when the upper blade 22 is attached or detached, if the lower blade holder 92 and the spacer 88 are removed, these do not get in the way.
[0037]
A drive shaft 104 that receives a rotational driving force from the drive motor 102 (see FIG. 3) and rotates as the aluminum web 12 is conveyed is disposed further below the lower arbor shaft 80. The rotational driving force of the drive shaft 104 is transmitted to the lower arbor shaft 80 via the drive gears 106 and 108, and the lower blade 24 also has a predetermined angular velocity corresponding to the conveying speed of the aluminum web 12. Rotate.
[0038]
The lower arbor shaft 80 and the upper arbor shaft 44 are provided with transmission portions 110 and 108, respectively, and a timing belt is stretched over them, and the lower arbor shaft 80 and the upper arbor shaft 44 rotate in opposite directions. It is supposed to be. As a result, the aluminum web 12 can be sandwiched and cut by the upper blade 22 and the lower blade 24 in the thickness direction.
[0039]
As shown in FIG. 4, a power source 112 and a lamp 114 are connected in series by a conducting wire 116 between the upper blade 22 and the lower blade 24. As described above, since the upper blade 22 and the lower blade 24 are insulated by the insulating member 58 in a non-contact state, the lamp 114 is not lit, but the upper blade 22 and the lower blade 24 are not illuminated. , The closed circuit is formed, so that the lamp 114 is turned on.
[0040]
Next, a method for aligning the upper blade 22 using the cutting blade mounting structure of this embodiment will be described.
[0041]
First, as shown in FIGS. 5 and 8A, the operator places a precision feed screw so that the upper blade 22 is positioned at a position sufficiently away from the lower blade 24 with respect to the lower blade 24 serving as a position reference. 66 is rotated in a predetermined direction. In this state, since the upper blade 22 and the lower blade 24 are not in contact with each other, the lamp 114 does not light up. At this time, if the spacer 88 and the lower blade retainer 92 corresponding to the lower blade 24 are removed, they will not interfere. Of course, if these do not get in the way, there is no need to remove them.
[0042]
Next, the operator rotates the precision feed screw 66 so that the upper blade 22 approaches the lower blade 24. As shown in FIGS. 6 and 8B, when the upper blade 22 comes into contact with the lower blade 24, the lamp 114 is lit. Therefore, the operator confirms that the lamp 114 is lit so that the upper blade 22 is lowered. It can be easily known that the blade 24 has been touched.
[0043]
Although it is possible to set the position of the upper blade 22 in this state as a reference position (so-called zero point), in general, the contacting position may be slightly changed depending on the work situation and the operator. Therefore, it is preferable that the operator reversely rotates the precision feed screw 66 from the contact state, and the moment when the lamp 114 stops lighting is set as the reference position.
[0044]
After the upper blade 22 is set to the reference position in this way, the precision feed screw 66 is further rotated by a predetermined amount in a predetermined direction as necessary. In general, the precision feed screw corresponds to the rotation amount (rotation angle) and the feed amount (amount of movement in the axial direction). Therefore, by adjusting the rotation amount of the precision feed screw 66, FIGS. As shown to (C), the position of the upper blade 22 can be made into a desired position. If the spacer 88 and the lower blade retainer 92 have been removed, they are mounted on the lower arbor shaft 80 at this stage.
[0045]
As can be seen from the above description, the alignment of the upper blade 22 can be performed substantially only by the rotation of the precision feed screw 66, and the work burden on the operator is reduced.
[0046]
When detaching or replacing the upper blade 22, the mounting screw 56 is loosened, and the spacer 50 and the upper blade holder 54 are removed. If the lower blade retainer 92 and the spacer 88 are in the way, they can also be removed. Thereby, since the upper blade 22 can be removed from the upper arbor shaft 44, for example, the new upper blade 22 can be attached in a procedure reverse to the removal.
[0047]
Here, in this embodiment, the insulating member 58 that insulates the upper blade 22 and the lower blade 24 is disposed between the upper arbor shaft 44 and the housing 40, and the upper blade 22 is connected to the upper arbor shaft 44. It is not arranged on the mounting part. That is, since the insulating member 58 does not affect the mounting position accuracy of the upper blade 22 with respect to the upper arbor shaft 44, it is not necessary to process with high accuracy, and there is no mounting position error of the upper blade 22 depending on the insulating member 58. .
[0048]
Further, since the insulating member 58 only needs to be able to insulate the upper arbor shaft 44 and the housing 40, the shape of the insulating member 58 is smaller than that of the conventional configuration in which an insulating material is disposed on the mounting portion of the upper blade 22 as in the prior art. It can also be simplified. The mounting accuracy of the upper blade 22 with respect to the upper arbor shaft 44 is satisfied by the spacers 50 and 52 and the upper blade holder 54. However, since these members do not require insulation, for example, a material such as metal that is easy to process is used. can do.
[0049]
Furthermore, since it is not necessary to remove the insulating member 58 every time the upper blade 22 is attached or removed, management for preventing the insulating member 58 from being damaged becomes unnecessary, and the work load is reduced. Since the same insulating member 58 can be used over a long period of time, the material usage amount of the insulating material can be reduced.
[0050]
Specific examples of the insulating member applicable to the present invention include ceramic materials having the physical properties listed in Table 1 below.
[0051]
[Table 1]

Of course, the material is not limited to the above as long as the material satisfies the positional accuracy and the insulating property of the upper arbor shaft 44 with respect to the housing 40. For example, a high-strength resin other than ceramic may be used. The compressive strength of the insulating member 58 is preferably 9800 N / cm ² or more.
[0052]
Moreover, in this invention, the insulating member 58 should just be arrange | positioned between the upper arbor shaft 44 to which the upper blade 22 was attached, and the lower arbor shaft 80 to which the lower blade 24 was attached. Therefore, for example, an insulating member is disposed between the lower arbor shaft 80 and the frame 38 (substantially the vertical relationship is reversed at least with respect to insulation as compared with the above embodiment. ). Further, the upper blade 22 and the lower blade 24 may be insulated by dividing the frame 38 into upper and lower portions and interposing an insulating material therebetween.
[0053]
The means for moving the upper arbor shaft 44 in the axial direction is not limited to that in which the operator rotates the handle 76 described above. For example, an electric servo motor, a so-called stepping motor, or the like may be used so that the upper blade 22 can be positioned more accurately and easily.
[0054]
Furthermore, the movement and alignment of the blade to the set position can be automatically performed based on an instruction from a control device (not shown). For example, when the upper blade 22 and the lower blade 24 come into contact, the position detector may be reset to zero so that a motor (such as an electric servo motor or a stepping motor) recognizes the contact position. It is also possible to input the feed amount of the upper blade 22 to the control device in advance and move the upper blade 22 by a predetermined movement amount from the contact position of the blade. In addition, the final movement amount of the upper blade 22 may be detected and displayed by the position detector. With such a configuration, it is possible to save the labor for aligning the upper blade 22 and perform alignment with higher accuracy. In particular, by using an electric servo motor, a so-called stepping motor, or the like, alignment can be performed with higher accuracy.
[0055]
In addition to the processing line 90 for sequentially unwinding and processing the aluminum web 12 that has been coated with the photosensitive layer and wound in a coil shape as described above, the photosensitive layer is continuously applied without being wound after being coated. Cutting into a processing line that incorporates various processes, such as a processing line that is processed in a coiled form after processing, or a sheet that is cut into a sheet so that it has the dimensions of the final shipping form after being cut into a master sheet In addition, the present invention can be applied.
[0056]
【The invention's effect】
Since this invention was set as the said structure, a cutting blade can be attached to a shaft at low cost, and a work burden can also be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a processing line of a lithographic printing plate provided with a slitter employing a cutting blade mounting structure according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a slitter employing a cutting blade mounting structure according to an embodiment of the present invention.
FIG. 3 is a plan view showing a slitter in which a cutting blade mounting structure according to an embodiment of the present invention is employed.
FIG. 4 is a connection showing a circuit of a slitter adopting a cutting blade mounting structure according to an embodiment of the present invention.
FIG. 5 is a partially enlarged cross-sectional view of a slitter employing the cutting blade mounting structure according to an embodiment of the present invention.
FIG. 6 is a partially enlarged cross-sectional view of a slitter that employs the cutting blade mounting structure according to an embodiment of the present invention.
FIG. 7 is a partially enlarged cross-sectional view of a slitter employing the cutting blade mounting structure according to an embodiment of the present invention.
FIGS. 8A to 8C are explanatory views sequentially showing steps of aligning the upper blade in a slitter adopting the cutting blade mounting structure of one embodiment of the present invention in order from (A) to (C).
FIG. 9 is a schematic view showing a conventional slitter.
[Explanation of symbols]
10 Slitter 22 Upper blade 24 Lower blade 44 Upper arbor shaft (shaft)
58 Insulating member 60 Insulating disk (insulating member)
62 Insulating cylinder (insulating member)
80 Lower arbor shaft (shaft)
90 Processing line (Strip cutting machine)
112 Power supply (contact detection means)
114 lamp (contact detection means)
116 Conductor (contact detection means)

Claims (3)

At least a pair of cutting blades that sandwich and cut the strip in the thickness direction;
At least a pair of shafts in which the pair of cutting blades are respectively movable;
A housing for holding the shaft;
An insulating member that is disposed between the housing and the shaft and insulates the cutting blade;
A cutting blade mounting structure characterized by comprising: Contact detection means for detecting the contact state of the pair of cutting blades by conduction;
The cutting blade mounting structure according to claim 1, comprising: Conveying means for conveying the strip in a certain direction;
A cutting blade attached to the shaft by the cutting blade mounting structure according to claim 1 or 2 ,
A strip cutting apparatus characterized by comprising:

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