JP4115267B2 - Traveling sheet horizontal cutting device - Google Patents

Description

【００３９】
上記テストの結果、計算上の理想角度での切断となり、切断状況は何れも良好であった。従来の切断方法はナイフの入射角度が固定されており、各シート走行速度と合致していない為、シートの切口も悪く、切断に失敗することもあった。
【００４０】
【発明の効果】
請求項１の発明では、シートの走行速度およびナイフの走行速度に応じて、シート走行方向に対するナイフ入射角度を設定することにより、ナイフによる走行シートの切断状況が良好となり、ナイフの往路、復路共にシート切断が可能となり、切断作業をしないナイフの無駄な帰還装置を不要とし、設備が小型化され、設置コストが低下され、走行するシートの切断が確実に実施可能となり、製品の歩留とシート切断装置を取付けた塗工機等の作業機械の稼働率が大幅に改善された効果を奏する。またシート切断ストロークの最路時点でナイフを所定角度回動することによりシート切断装置の小型化の実現可能とする効果を奏する。
【００４１】
また、シート走行速度に応じてナイフの入射角度を自動的に設定することにより、ナイフ入射角度の設定が迅速、確実となり、シートの歩留の向上と作業機械の稼働率の向上が一段と可能となる効果を奏する。
【００４２】
請求項２の発明では、ナイフの刃先角度を所定角度範囲とすることにより、シート横切断作業が確実となり、シートの歩留と作業機械の稼働率との向上が更に向上する効果を奏する。
【００４３】
請求項３の発明では、シート切断装置小型化が実施可能となり、各種のシート切断作業機械に装着可能となり、更に巻取の交換以外のシートの連続切断作業の完全自動化も可能となり、切断されるシートの歩留と作業機械の稼働率との向上に測り知れない効果を奏する。
【図面の簡単な説明】
【図１】シート切断装置の位置関係実施例を示す塗工機の略示側面図である。
【図２】シート切断装置とシートとの取付関係実施例を示す部分拡大斜視図である。。
【図３】走行架台端より見たシート切断装置実施例の拡大側面図である。
【図４】走行架台側面より見たシート切断装置実施例の部分拡大立面図である。
【図５】ナイフ入射角度説明図である。
【図６】ナイフ刃先角度説明図である。
【図７】ナイフ回動線図である。
【符号の説明】
１ 繰出部
２ 塗工部
３ ドライヤ
４ 巻取部
５ 繰出側シート切断装置
６ 巻取側シート切断装置
７ シート
８ 走行架台
９ 走行体
１０ ナイフ支持体
１１ ナイフ
１２ ナイフ側ギア（ナイフ側係合体）
１３ ナイフ支持体軸
１４ モータ側ギア（モータ側係合体）
１５ 回動モータ
１６ 支持ロール
Ａ シート走行方向
Ｂ ナイフ走行方向
α ナイフ入射角度
β ナイフ刃先角度[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cutting device mounted for the purpose of transversely cutting a long sheet-like material represented by paper, polymer film, metal foil, and the like.
[0002]
[Prior art]
There are many means for cutting a long sheet typified by conventional paper, polymer film, metal foil and the like in the transverse direction (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).
In particular, it is widely used in the field of coating machines installed for the purpose of applying and drying liquid paints on sheets. The coating machine is a sheet winding material (hereinafter referred to as winding) mounted on a feeding device provided inside the coating machine, continuously feeding the sheet, and applying a liquid paint to the sheet surface. It is a general term for equipment that is dried and wound up again by a winding device (see, for example, Patent Document 4 and Patent Document 5).
In the conventional coating machine, the winding application and rewinding are completed, the coating machine is temporarily stopped, the winding is removed, and the winding for the next application is mounted on the feeding device, and again The cycle of resuming the coating operation was repeated, but the problem was that the operation rate was low because the operation was repeatedly stopped and started.
However, due to recent technological advances, the winding machine to be applied next is installed in the feeding device in advance, and the coating machine is stopped by automatically pasting and connecting the old winding and the new winding. It became possible to operate continuously without any problems.
In addition, after the winding of the old winding is completed, the winding device can automatically wind the sheet on the new winding shaft, and a significant improvement in the operating rate has been achieved (for example, see Patent Document 4). .)
The aforementioned continuous operation process, in the feeding unit, the collected Aramaki and preparative old winding need to disconnect the trailing edge of the sheet of preparative old winding when the sheets were laminated glue occurs. Further, in order to wind the sheet after coating on the new winding shaft, it is necessary to cut the rear end of the sheet traveling to the old winding shaft. This means that the traveling sheet is cut, and conventionally, the sheet is usually cut by pushing a saw blade-like knife into the traveling sheet all at once across the entire width of the sheet. However, in the above cutting method, the cut portion of the sheet is jagged, and by winding the leading end of the cut sheet on the new winding shaft as it is, the leading end of the sheet is bent, wrinkled, irregularly overlapped, etc. The sheet that occurs and continues to be wound on it has an uneven presser mold due to poor winding at the tip, resulting in a sheet that does not become flat and does not become a significant amount of product. This was a major factor in the decline in yield. Also, in the feeding portion, the cut edge of the sheet at the cutting portion is torn and separated, and the broken piece enters the application portion, resulting in a coating abnormality, which is also a major factor in yield reduction. Problem solving has been a problem (see, for example, Patent Document 2).
In recent years, in order to solve the above-described problem, as a method of cutting a traveling sheet, a method of cutting a sheet by a traveling knife by causing the knife to travel in a transverse direction from the end of the sheet has been gradually spread. In this method, the sheet cutting portion is not jagged, but is linear, and from one end of the sheet to the other end is cut in a substantially right triangle shape with respect to the flow direction of the sheet. The cut sheet front end is spirally wound around the new winding shaft.
The winding start state in the winding section by the cutting method, folding of the sheet overlap, no occurrence of wrinkles, also sheet to be wound by subsequently thereon, without being affected by the lower volume, the yield improvement It is a well-known fact that it greatly contributes to this (see, for example, Patent Document 1).
The most important means for moving the knife in the transverse direction with respect to the traveling sheet and cutting the sheet is the incident angle α of the knife with respect to the traveling sheet when the traveling speed of the knife is constant. (See FIG. 5). If the sheet speed is assumed to be constant, for example, the knife incident angle α does not match the sheet speed, and as the knife incident angle α approaches 90 degrees with respect to the sheet traveling direction, As a result, a lateral force is applied to the knife, and an unreasonable force is applied to the sheet and the knife, respectively, causing troubles such as breakage of the sheet in the running direction or breakage of the knife. Further, as the knife incident angle α approaches 0 degrees, the knife crosses the sheet in the width direction due to the crossing force of the knife, and the knife breaks. That is, since the appropriate incident angle α of the knife is determined by both speed vectors of the traveling sheet speed and the knife traveling speed, it is an important factor to set the knife incident angle α in advance (for example, Patent Documents). 1, see Patent Document 2.).
In the conventional cutting device, when the knife travels in the horizontal direction and reaches the other sheet edge from the sheet edge at the beginning of cutting, the sheet is completely cut, but then the knife tip is raised to a height that does not contact the sheet. It is necessary to return to the old position before cutting, and to move back in the opposite direction at a distance, above the sheet, and to return to the old position before cutting, and this knife return operation is a wasteful operation that does not cut the sheet Regardless, this is a cause of complicated and large equipment for the feedback operation, and is expensive in terms of production cost (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). ).
[0003]
[Patent Document 1]
JP-A-8-1582 (first page, third page, FIG. 1, FIG. 2, FIG. 3)
[Patent Document 2]
JP-A-7-206233 (first page, FIG. 1, FIG. 2, FIG. 3)
[Patent Document 3]
JP-A-5-318381 (first page, FIGS. 1 and 2)
[Patent Document 4]
Japanese Patent No. 2904799 (page 2)
[Patent Document 5]
JP 2001-114458 A (first page)
[0004]
[Problems to be solved by the invention]
In particular, in the case of a coating machine, it is rare to apply only one type of sheet and only one type of liquid paint, and it is usually performed to operate under a wide variety of conditions, and the sheet speed also depends on the above conditions. The incident angle of the knife has to be changed each time, and a great deal of time is required for the adjustment, and prompt determination of the incident angle has been a problem.
[0005]
In addition, the sheet feeding unit and the winding unit in the above-described coating machine are very complicated along with the automation of equipment, and generally the equipment space of the sheet cutting device in both parts is relatively narrow, and therefore the cutting device. It is necessary to reduce the size of the device itself, and this size reduction is an issue.
[0006]
As described above, the conventional cutting device requires a feedback operation when the knife travels in the horizontal direction and arrives at the other sheet end from the sheet end at the start of cutting, and the equipment for the return operation becomes complicated and large. This has been a problem.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the movement of the apparatus itself has been simplified, the apparatus itself has been miniaturized, and a traveling sheet transverse cutting apparatus has been invented that does not require manual operation for adjusting the knife incident angle.
[0008]
According to the first aspect of the present invention, the traveling sheet transverse cutting device is configured such that a knife is inserted from one side end of the traveling long sheet, and the knife is traveled at a constant speed in a direction transverse to the sheet traveling direction. laterally cut to side edge, in the running sheet transverse cutting apparatus, the running sheet lateral cutting device detects the traveling speed of the sheet, in accordance with the travel speed of the sheet speed and the knife, the incident angle of the knife with respect to the sheet running direction automatically set at the time that led to the final run Gyosu stroke of the knife, automatically reversing the knife, again from said other end, with respect to the sheet running direction, symmetrically identical knife incident The sheet can be transversely cut in the opposite direction at an angle, and the sheet can be repeatedly transversely cut.
[0010]
In the invention of claim 2 , a configuration in which the edge angle of the knife is 60 degrees to 20 degrees with respect to the sheet plane is added to the invention of claim 1 .
[0011]
In the invention of claim 3, seat the traveling sheet transverse cutting apparatus, a frame-shaped traveling gantry installed saddled the sheet, a travel member is reciprocally movable disposed on the cross-platform, to the traveling body a knife support which is rotatably supported on the plane and the vertical direction, and the knife-side rotary engaging body mounted on the pivot shaft of the knife support, a knife is supported by the front Symbol knife support, the a rotating motor mounted to both ends of the traveling gantry, front Symbol knife side rotary engaging member engageable with said knife support a predetermined angle rotatable rotating motor side rotation shaft and parallel to axis of and engaging body, is provided inside the front Symbol frame, a travel signal detection apparatus of a sheet speed, and a knife rotating angle setting apparatus issues a command signal for rotating the knife in a predetermined incidence angle, moving the knife at a constant speed the construction of a more a traveling motor according to claim 1 or claim 2 originating It has a configuration to be added to.
[0012]
That is, in a sheet transverse cutting apparatus that transversely cuts a sheet traveling at a constant speed, the incident angle α of the traveling knife with respect to the sheet traveling direction is set as shown in FIG. When the knife travels from one end of the sheet in the direction crossing the sheet, the knife passes through the reflection-side sheet end, and the knife travel stroke reaches the final point, the knife incident angle α is set. With the knife rotation angle setting device provided in the frame or the like as shown in claim 3 , the knife is rotated and reversed to a predetermined angle, that is, a reference angle α opposite to the sheet running direction, in the next reverse direction. It is necessary to have a device that moves the knife up and down at each reversal by holding it at the incident angle α to be cut and running it at the same speed in the reverse direction with the reverse incident angle at the next cutting. It was to not configured.
[0013]
According to the third aspect of the present invention, the knife rotation angle setting device is configured such that a knife-side rotation such as a gear or a pulley is provided on a rotatable knife support provided on a traveling body that can reciprocate in the sheet transverse direction on the traveling platform. It is composed of a fixed rotating prime mover having a dynamic engagement body and fitted with a rotational prime mover side engagement body such as a gear or pulley provided at the end of the traveling frame.
The structure is such that the rotation of the rotary prime mover causes the knife to pivot to a predetermined symmetrical incident angle in the reverse direction via an engagement body such as a gear or a pulley. The structure of the knife rotation transmission means utilizing the above is a structure that can be taken into consideration, and is included in the structure of the present invention. That is, instead of the gear combination, a pulley combination via a belt may be used.
[0014]
The importance of the incident angle α of the knife will be described in detail with further explanation.
Knife with respect to the traveling direction of the traveling to and sheets, in a manner that the transverse cutting of the sheet is a knife that traverses traveling, as shown in FIG. 5, the correlation between the knife speed B traveling speed A and Yokohashiri row seat The incident angle α is determined.
This appropriate angle has only one angle and can be calculated by the following calculation formula.
tan α = B / A
Therefore, as the knife speed B is higher than the sheet traveling speed A, the incident angle α is closer to 90 degrees.
[0015]
When the angle of incidence of the knife relative to the sheet speed does not match the appropriate value, a force other than the force used for cutting acts between the knife that travels sideways and the sheet that travels, and in many cases there is an accident of sheet tearing or knife breakage. Will result.
In particular, when the knife traveling sideways enters the side edge of the traveling sheet and the knife incident angle does not match the appropriate value, the above trouble phenomenon occurs remarkably, so the knife incident angle for sheet cutting is the most important. Is an element.
[0016]
In addition, as described above, in the operation mode of the coating machine, due to changes in sheet properties, paint composition, etc., the sheet speed is not constant and must be changed as necessary. It has been attempted to solve the trouble by detecting the sheet speed signal and changing the knife speed.
[0017]
However, it is necessary to control the speed of the motor that is used for traveling, and in many cases, the speed control equipment and the drive unit are increased in size and complicated due to the use of servo motors, variable speed motors, etc., resulting in very expensive equipment. It was.
[0018]
According to the first aspect of the present invention, a traveling prime mover such as a separate air cylinder or a general-purpose motor is used as a means for traversing the knife, and the traveling speed signal of the seat before the traveling of the knife is maintained while the traveling speed of the knife is constant. enter a, by setting the incident angle of the knife in advance, it is configured to seat cut at angle of incidence of the ideal.
[0019]
Means for presetting the angle of incidence of the knife according to the speed signal of the traveling sheet are generally easy. As shown in claims 1 and 3 , a rotatable knife support that pivotally supports a knife in a direction perpendicular to the seat surface is set to rotate at a predetermined angle from a seat speed signal. Although a small motor can be considered as this, it is not limited to this. According to the invention of claim 3 , the reversal of the knife and the setting of the incident angle are configured only by engagement of a rotary prime mover such as a drive motor and an engagement body such as a gear or a pulley, and is compact.
[0020]
When a sheet is cut with a knife, the angle formed by the blade edge of the knife itself and the sheet surface, that is, as shown in FIG. 6, the knife angle β is important.
This knife angle β should be an angle at which the cutting force is maximized because the amount of cutting the sheet with the knife increases as the combined speed of both speed vectors of the sheet traveling speed and the traverse knife speed increases. is there.
[0021]
Normally, as shown in FIG. 6, the knife cutting edge angle β used for the transverse cutting of the sheet can be cut if it is an angle smaller than 90 degrees with respect to the sheet surface. In the sheet cutting mechanism, the smaller the angle β formed by the sheet surface and the knife edge, the greater the sheet cutting force.
Since the cutting force works at a right angle to the knife blade edge, the cutting force increases if the cutting force is taken with respect to the sheet surface in the cutting direction, that is, the angle β is small, but the cutting edge angle β is increased accordingly. If it is made small, the blade edge pushes down the sheet, escapes from the sheet blade edge, and the sheet cannot be cut by the amount pushed down.
[0022]
The inventor diligently studied the relationship between the cutting of the sheet and the cutting edge angle β, and as a result of repeating the test, the cutting of the sheet was the best when the cutting edge angle β was 45 degrees to 30 degrees with respect to the sheet surface. I found out that The range of 60 degrees to 20 degrees of the cutting edge angle β according to the invention of claim 2 defines a good cutting range including the aforementioned range.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
The importance of the knife incident angle α with respect to the sheet traveling direction will be described in further detail with further explanation.
In the method of cutting a sheet with a knife that travels across the sheet traveling direction, the knife incident angle α is determined by the correlation between the sheet traveling speed Cv and the knife speed Nv that travels across the sheet.
The optimum knife incident angle α is only one point and can be calculated by the following equation.
tan α = Cv / Nv (1)
[0024]
When the knife incident angle α with respect to the sheet traveling direction does not match the appropriate value, a force other than the force used for cutting the sheet works between the laterally traveling knife and the traveling sheet, and in many cases the sheet is torn or the knife is broken. This will result in an accident.
In particular, when the blade angle of the knife that runs laterally enters the edge of the running sheet, when the knife incident angle α does not match the appropriate value, the aforementioned trouble phenomenon occurs remarkably. The angle α is the most important factor. Further, as described in paragraph 0004, the sheet speed is not constant in the operation state of the coating machine, but should be changed depending on the sheet material, paint properties, etc. The above-mentioned trouble has been solved by adopting a signal and changing the knife traveling speed in accordance with the sheet speed signal. However, with this method, it is necessary to control the speed of the motor used for running the knife, and in many methods, the speed control equipment and the drive unit are enlarged due to the use of a servo motor, a transmission motor, etc. It has become.
[0025]
In the present invention, a method of making the knife traveling speed constant is adopted, and an air cylinder or a general-purpose motor is used as a traveling motor for traveling the knife, the knife traveling mechanism is simplified, and the constant speed is maintained in advance. incorporating the running speed signal of the sheet, it is to cut the sheet at an ideal angle of incidence by setting the incident angle of the knife by the signal. Of course, when the knife traveling speed is changed depending on the type of sheet, the incident angle can be set accordingly.
[0026]
As a means for setting the knife incident angle before the cutting operation based on the speed signal of the traveling sheet, in the present invention, a knife support that can be swung in a direction perpendicular to the sheet surface is set to a predetermined angle by the sheet speed signal. A small motor is conceivable as the rotation prime mover, but is not particularly limited to the motor. In the invention of claim 3 , the reversal of the knife and the setting of the incident angle after the completion of the sheet cutting use, for example, a drive motor as a rotation motor, and a gear device or a pulley as an engagement means on the knife side and the rotation motor side. It is configured only by using the device and has a compact configuration.
[0027]
FIG. 1 shows a general configuration of a coating machine for applying a coating material to a sheet 7 and a part of a sheet support roll 16 in the machine as an example of installing the traveling sheet transverse cutting apparatus of the present invention. It is a schematic side view showing the positional relationship between the shown sheet cutting devices 5 and 6.
[0028]
In the illustrated coating machine, a feeding unit 1 that continuously feeds a wound long sheet 7, a coating unit 2 that applies a liquid paint to the sheet 7, and a dryer that allows the sheet 7 to pass through in a dry manner. 3 and a winding unit 4 for winding the dried sheet 7.
[0029]
The feeding side sheet cutting device 5 is provided in the feeding unit 1, the winding side sheet cutting device 6 is provided in the winding unit 4, and both the sheet cutting devices 5 and 6 are old and new windings in the feeding unit 1 and the winding unit 4. When replacing the take-up, the rear end of the old sheet 7 is cut, the leading end of the new take-up sheet is connected to the rear end of the old sheet in the feeding unit 1, and the new roll is taken up in the take-up unit 4. Mounted for the purpose of connecting to the shaft.
[0030]
FIG. 2 is a perspective view of the embodiment showing a positional configuration of the traveling sheet 7 (traveling direction arrow A) and the sheet cutting device 5 or 6. The sheet cutting device 5 or 6 is disposed at a substantially right angle with respect to the sheet 7, and the knife 11 travels in the transverse direction with respect to the sheet 7 to cut the sheet 7 in a transverse direction.
[0031]
FIG. 3 is an enlarged side view of the embodiment of the sheet cutting device 5 or 6 as viewed from the traveling side surface of the sheet 7. FIG. 4 is a partially enlarged elevation view of the embodiment of the sheet cutting device 5 or 6 as viewed from the traveling direction of the sheet 7. The sheet cutting device 5 or 6 includes a travel base 8, a travel body 9 that can reciprocate on the base 8 in the left-right direction in the figure, and a shaft that can rotate in a direction perpendicular to the surface of the seat 7 on the travel body 9. And a supported knife support 10.
[0032]
The traveling body 9 moves left and right in the figure on the traveling platform 8, and the knife support body 10 also moves left and right. A knife traveling prime mover can be installed in the traveling platform 8. The traveling prime mover may be a liquid cylinder device for driving driving, a motor, or the like, but is not limited to this as long as it is a driving device capable of adjusting the knife traveling speed and intended for linear motion.
[0033]
The knife 11 is held by a knife support 10 that can pivot about a knife support shaft 13, and a knife-side gear 12 that is a knife-side rotation engaging body is mounted on the knife support shaft 13. Yes.
[0034]
The knife incident angle α will be described with reference to FIGS. The knife-side gear 12 that is a knife-side rotation engagement body is a rotation motor that is a fixed rotation prime mover that is attached to both ends of the traveling frame 8 at a position where the knife traveling body 9 reaches the side end of the seat 7. It is meshed with a motor side gear 14 mounted on 15 shafts. When engaged, the knife support 10 is rotated by the rotation of the rotation motor 15 until the knife 11 reaches a predetermined angle.
[0035]
The rotation motor 15 is a means for rotating the knife 11. As the rotation prime mover, other electric type or fluid pressure type rotation devices are conceivable, but the invention is not particularly limited to this. At the traveling end of the knife 11, the knife 11 is rotated by the rotation of the rotation motor 15, and at the same time, in order to travel in the reverse direction, the predetermined incident angle α is set, and it waits for the next cutting in the reverse direction. Quiesce.
[0036]
The knife rotation diagram of FIG. 7 will be described. A sheet travel speed signal from a separate seat travel speed detection device is input to the travel signal detection device, and an output signal of the detection device and a knife arrival signal (that is, engagement body engagement) notifying that the knife has reached the end of the knife mount Signal) is input to the knife rotation angle setting device, and a command signal from the setting device is input to the rotation prime mover to rotate the prime mover, and the knife side rotation engagement body via the rotation prime mover side engagement body. And the knife is rotated to a predetermined incident angle position.
[0037]
As a result of cutting with the traveling sheet transverse cutting device of the present invention, the following results were obtained.
Test conditions: A sheet cutting device was installed in the direction across the sheet for the traveling sheet, and the sheet was cut under different sheet traveling speeds.
[0038]
[Table 1]

[0039]
As a result of the above test, cutting was performed at an ideal angle calculated, and the cutting conditions were all good. In the conventional cutting method, since the incident angle of the knife is fixed and does not match the traveling speed of each sheet, the sheet has a poor cut and sometimes fails to cut.
[0040]
【The invention's effect】
In the invention of claim 1, by setting the knife incident angle with respect to the sheet traveling direction according to the traveling speed of the sheet and the traveling speed of the knife, the cutting state of the traveling sheet by the knife becomes good, and both the forward path and the backward path of the knife Sheet cutting is possible, no unnecessary knife return device that does not perform cutting work is required, equipment is downsized, installation costs are reduced, and traveling sheets can be reliably cut, product yield and sheets The working rate of the working machine such as a coating machine equipped with a cutting device is greatly improved. Further, there is an effect that the sheet cutting device can be miniaturized by rotating the knife by a predetermined angle at the time of the last path of the sheet cutting stroke.
[0041]
In addition , by automatically setting the knife incident angle according to the sheet travel speed, the knife incident angle can be set quickly and reliably, further improving the yield of the sheet and the operating rate of the work machine. The effect which becomes.
[0042]
In the invention of claim 2 , by setting the knife edge angle within a predetermined angle range, the sheet transverse cutting operation is ensured, and the improvement of the sheet yield and the operating rate of the working machine is further improved.
[0043]
According to the invention of claim 3 , the sheet cutting device can be reduced in size, can be mounted on various sheet cutting work machines, and further, it is possible to fully automate continuous sheet cutting operations other than the replacement of the winding and cutting. There are immeasurable effects in improving the yield of seats and the availability of work machines.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a coating machine showing an embodiment of a positional relationship of a sheet cutting device.
FIG. 2 is a partially enlarged perspective view showing an embodiment of an attachment relationship between a sheet cutting device and a sheet. .
FIG. 3 is an enlarged side view of the embodiment of the sheet cutting device as viewed from the end of the traveling frame.
FIG. 4 is a partially enlarged elevational view of the embodiment of the sheet cutting device as seen from the side surface of the traveling frame.
FIG. 5 is an explanatory diagram of a knife incident angle.
FIG. 6 is an explanatory diagram of a knife edge angle.
FIG. 7 is a knife rotation diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Feeding part 2 Coating part 3 Dryer 4 Winding part 5 Feeding side sheet cutting apparatus 6 Winding side sheet cutting apparatus 7 Sheet 8 Traveling base 9 Traveling body 10 Knife support body 11 Knife 12 Knife side gear (knife side engaging body)
13 Knife support shaft 14 Motor side gear (motor side engaging body)
15 Rotating motor 16 Support roll A Sheet traveling direction B Knife traveling direction α Knife incident angle β Knife blade edge angle

Claims (3)

In the traveling sheet lateral cutting device, which puts a knife from one side end of the long sheet traveling, travels the knife at a constant speed in a direction transverse to the sheet traveling direction, and transversely cuts the sheet to the other side end.
The traveling sheet lateral cutting device detects the traveling speed of the sheet, and automatically sets the incident angle of the knife with respect to the sheet traveling direction according to the sheet speed and the traveling speed of the knife,
When the end of the travel stroke of the knife, the knife is automatically reversed, and the sheet is cut again in the opposite direction from the other side at the same knife incident angle symmetrically with respect to the sheet travel direction. And a traveling sheet transverse cutting device characterized in that the sheet can be repeatedly transversely cut. Edge angle of the knife is, to 60 degrees to with respect to the sheet plane of claim 1 Symbol placement is 20 degrees traveling sheet transverse cutting apparatus. The traveling sheet lateral cutting device,
A frame-shaped running frame to be bridged location straddling the seat,
A traveling body that is reciprocally movable disposed in the cross-bench,
A knife support that is pivotally supported by the traveling body in a direction perpendicular to the seat surface ;
And knife-side rotary engaging body mounted on the pivot shaft of the knife support,
A knife which is supported on the knife support,
A rotating prime mover mounted on both ends of the traveling frame ;
A rotating prime mover side engaging body that is engageable with the knife side rotating engaging body and capable of rotating a predetermined angle around a rotation axis of the knife supporting body ;
Is provided inside the frame, and the sheet speed travel signal detection device,
A knife rotation angle setting device for issuing a command signal for rotating the knife to a predetermined incident angle ;
A traveling motor for moving the knife at a constant speed consists of <br/> claim 1 or claim 2 Symbol placement traveling sheet transverse cutting apparatus.

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