JP2020001138A - Cutting device of sheet material - Google Patents

Abstract

To suppress occurrence of a cutting defective of a sheet material.SOLUTION: A cutting device 10 of a sheet material includes: a cutting table 30 which has a slit 31; an operation member 40; a cutting blade which is provided in the operation member 40; and a support member which movably supports the operation member 40 in a second direction C and a first direction A which is moved into and out of contact with the cutting table 30. The cutting device further includes: an energization mechanism 50 which energizes the operation member 40 toward an initial position separated from the cutting table 30; and a lock mechanism 60 which regulates displacement of the operation member 40. The lock mechanism 60 is changed to a regulation position for regulating displacement of the operation member 40 in the second direction C when the operation member 40 is moved up to a cutting start position and is changed to an allowable position for allowing the movement of the operation member 40 in the second direction C when the operation member 40 is moved in the first direction A from the cutting start position up to a cutting end position for ending the cutting of the sheet material by the cutting blade.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sheet material cutting device.

  2. Description of the Related Art Conventionally, as a device for cutting a sheet material such as paper used for packing or the like, a device that cuts a sheet material by sliding a cutting blade with respect to a sheet material placed on a cutting table is known. (For example, see Patent Document 1). The cutting device described in Patent Literature 1 includes an underlay mat on which a sheet material is placed, a press plate that presses the sheet material against the mat, and a slide cutter that slides along a rail fixed to the press plate. I have. The slide cutter includes a slider slidable on a rail, a cutter holder rotatable up and down with respect to the slider, and a cutter attached to the cutter holder. One end of the cutter holder is pivotally attached to the slider, and the other end is provided with an operation unit pressed by a finger of an operator. The operation unit is resiliently repelled by a spring in a direction away from the slider, and a cutter is attached to an inner surface of the operation unit.

Japanese Utility Model Publication No. 6-3598

  By the way, in the case of the cutting device described in Patent Literature 1, when cutting the sheet material, the operator needs to slide the operation unit against the sheet material against the elastic force of the spring. . Therefore, for example, when the sheet material cutting operation is repeatedly performed, the burden on the hands and arms of the worker increases. Also, if the pressing force on the operation unit is loosened by releasing the hand from the operation unit during cutting, the cutter is separated from the sheet material, and a part of the sheet material that has not been cut will be generated. Failure may occur.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting apparatus that can suppress occurrence of a cutting failure of a sheet material.

  A sheet material cutting device for achieving the above object, a cutting table having a slit on which the conveyed sheet material is placed and extending along a first direction that intersects the conveyance direction of the sheet material, An operating member provided above the cutting table, a cutting blade provided on a portion of the operating member facing the upper surface of the cutting table, a second direction contacting and separating from the cutting table and the first A support member that movably supports the operation member along a direction, an urging mechanism that urges the operation member toward an initial position that is separated from the cutting table, and the cutting from the initial position. When the operating member is moved to a cutting start position where the blade enters the slit, the operating member is changed to a regulating position that regulates displacement of the operating member in a direction away from the cutting table in the second direction. On the other hand, when the operating member is moved in the first direction from the cutting start position to a cutting end position at which the cutting of the sheet material by the cutting blade ends, the operating member moves in the second direction. A lock mechanism that is changed to an allowable position that allows movement in a direction away from the cutting table.

  When cutting a sheet material, first, the sheet material is placed on a cutting table. Next, the operation member is moved from the initial position to the cutting start position. Thereby, the cutting blade provided at the portion of the operation member facing the upper surface of the cutting table enters the slit of the cutting table. Next, the operating member at the cutting start position is moved to the cutting end position along the first direction. Thereby, the sheet material is cut by the cutting blade moving along the first direction in the slit. Thereafter, when the operating member is released, the operating member is urged toward the initial position by the urging mechanism, thereby returning to the initial position.

  According to the above configuration, since the lock mechanism is provided, during the cutting of the sheet material, that is, while the cutting blade is moved from the cutting start position to the cutting end position, the operation member is moved from the cutting table in the second direction. Displacement in the separating direction is restricted. Therefore, even if the operator releases his hand from the operating member during cutting, the cutting blade can be prevented from coming out of the slit. Thereby, it is possible to suppress the occurrence of a non-cut portion in the sheet material.

  ADVANTAGE OF THE INVENTION According to this invention, generation | occurrence | production of the cutting | disconnection defect of a sheet material can be suppressed.

The perspective view seen from the front side in one embodiment of the sheet material cutting device. The right side view of the cutting device of the embodiment. The left view of the cutting device of the embodiment. It is sectional drawing which shows the process in which the cutting blade in the embodiment is guided in a slit in order, (a) is a figure which shows the cutting blade when an operation member is in an initial position, (b) is a cutting blade. (C) is a diagram showing a state in which the cover has begun to contact the release roller, and (c) shows a state in which the cutting blade has entered the slit. FIGS. 3A and 3B are front views sequentially illustrating the operation of the lock mechanism in the embodiment, in which FIG. 3A illustrates a state of the lock mechanism when the operation member is at an initial position, and FIG. (C) is a diagram showing a state of the lock mechanism when the operating member is at the cutting end position. FIG. 3 is a schematic diagram showing a trajectory of an operation member in the same embodiment. It is a figure showing the correspondence of the position of the operation member and the position of the urging mechanism in the embodiment, (a) is a front view and a right side view when the operation member is at the cutting start position, (b) is , A front view and a right side view when the operation member is at the cutting end position. It is sectional drawing which shows operation | movement of the floating mechanism of the embodiment in order, (a) is a figure which shows the state of a floating mechanism when an operation member is in an initial position, (b) is an operation member in a cutting start position. FIG. 7C is a diagram illustrating a state of the floating mechanism when the operating member returns from the cutting end position to the initial position. FIGS. 4A and 4B are schematic diagrams illustrating an operation of a sheet pressing mechanism of the embodiment, in which FIG. 4A illustrates a state where a pressing roller is at a pressing position, and FIG. 4B illustrates a state where the pressing roller is at a retracted position.

Hereinafter, an embodiment will be described with reference to FIGS.
The sheet material cutting apparatus 10 according to the present embodiment, a sheet material S wound in a roll shape, along a direction orthogonal to both the conveying direction of the sheet material S and the vertical direction (hereinafter, a first direction A). This is a device that cuts at an arbitrary length.

<Basic configuration of the cutting device 10>
As shown in FIGS. 1 to 3, the cutting devices 10 are provided on both sides in the first direction A, and extend in directions perpendicular to both the first direction A and the vertical direction (hereinafter, the depth direction B). A pair of base portions 20 each having a rectangular frame shape in plan view and two columnar first connection members 21 connecting the base portions 20 extending along the first direction A are provided. The two base portions 20 are provided at an interval in the depth direction B. Hereinafter, one end and the other end in the first direction A (the left end and the right end in FIG. 1) are referred to as a first end and a second end. The near side (the left side in FIG. 2) and the far side (the right side in FIG. 2) in the depth direction B are referred to as a front side and a rear side, respectively.

Six casters 20a are provided at both ends and the center of each base portion 20 in the depth direction B.
Inside each base portion 20 in the first direction A, a pair of columns 22 extending upward along the up-down direction is provided at an interval in the front-rear direction.

The upper ends of the columns 22 are connected by a column-shaped second connection member 23 extending in the depth direction B.
A rectangular cylindrical cutting table 30 extending along the first direction A is fixed between the front ends of the second connecting members 23. A slit 31 extending along the first direction A is provided on an upper wall of the cutting table 30. The slit 31 is provided over the entire first direction A of the cutting table 30.

  A first column 24 extending upward along the up-down direction is connected to a central portion of each base portion 20 in the depth direction B. The upper end of the first column 24 is located above the second connecting member 23.

Two columnar third connecting members 27 extending along the first direction A and connecting the first columns 24 are provided at upper and lower intervals between the upper ends of the first columns 24. Have been.
On the front side of the upper end of each first support column 24, a second support column 25 is provided, which extends obliquely so that the lower side is closer to the front side. The lower end of the second support 25 is connected to the second connection member 23. A guard portion 29 extending along the first direction A and restricting the hand from entering the rear side of the worker is provided between the lower end portions of the second columns 25.

  A third column 26 extending upward in the up-down direction is connected to a portion of each base portion 20 on the front side of the first column 24. The upper end of the third support 26 is located immediately below the lower end of the second support 25, and is connected to the second connection member 23.

A cylindrical movable member 48 is supported on the outer periphery of each second support 25 so as to be movable along the direction in which the second support 25 extends (hereinafter, a second direction C).
A pair of rails 28 extending along the first direction A and connecting the movable members 48 are provided at intervals between the movable members 48 in the second direction C. An operating member 40 is slidably supported in the first direction A on the lower rail 28. That is, the operation member 40 is movably supported by the second support 25 in the second direction C, and is movably supported by the rail 28 in the first direction A. Therefore, the second support 25, the movable member 48, and the rail 28 correspond to a support member according to the present invention.

As shown in FIG. 2, a mounting portion 90 for mounting the roll body R on which the sheet material S is wound along the first direction A is provided at a rear portion of the base portion 20.
A first transport roller 91 extending along the first direction A is provided between the second connecting members 23.

In addition, a second transport roller 92 extending in the first direction A is provided in front of the first transport roller 91.
The sheet material S pulled out from the roll body R placed on the placing portion 90 is transported upward and is cut via the first transport roller 91 and the second transport roller 92 at the front cutting table 30. It is transported upward.

<Operation member 40 and cutting blade 44>
As shown in FIG. 1, the operation member 40 has a rectangular frame shape in a front view, and is attached to the main body 41 at a distance from each other in the second direction C and at a distance from each other in the first direction A. And a plurality of pulleys 41a rolling on the lower rail 28. Each pulley 41 a is sandwiched between the main body 41 and the rail 28. The length of the main body 41 in the first direction A is substantially half the length of the rail 28.

  As shown in FIG. 1, two connection columns 42 a protruding upward are provided at an upper portion of the main body 41. A cylindrical handle 42 is connected to the tip of each connecting column 42a. The handle 42 is provided on the first end side (the left end side in FIG. 1) of the main body 41 in the first direction A.

  As shown in FIGS. 4 and 5B, a lower end of the main body 41 is connected to an upper end of a rectangular plate 43 extending along the first direction A. A plurality of (four in the present embodiment) cutting blades 44 are attached to the plate 43.

  As shown in FIG. 4, each of the cutting blades 44 is a rotary blade, and is rotatably mounted in a state in which it is in contact with the rear surface of the plate 43. Part of each cutting blade 44 is exposed from the lower end of the plate 43. On the front surface of the plate 43, a nut 45 for attaching each cutting blade 44 is provided.

  An upper edge of a cover 46 having a substantially rectangular plate shape in plan view and extending along the first direction A and covering each cutting blade 44 is connected to an upper edge of the front surface of the plate 43 via a hinge 47. . Thus, the cover 46 is supported so as to be tiltable about the axis of the hinge 47 extending along the first direction A.

As shown in FIGS. 1 and 4, a disc-shaped relief roller 32 is supported above the second end side of the cutting table 30 so as to be rotatable about an axis along the first direction A. .
<Biasing mechanism 50>
As shown in FIGS. 1 to 3, the cutting device 10 is provided with an urging mechanism 50 that urges the operation member 40 toward the initial position (the position shown in FIG. 1) by using the gravity of the weight. I have.

  A first weight 51 that urges the operation member 40 obliquely rearward and upward in the second direction C is provided in a portion of each first support 24 below the second connection member 23 in the vertical direction. It is slidably supported along. The first weight 51 and the movable member 48 are connected by a string 53. The string 53 extends upward from the first weight 51 and is connected to the movable member 48 via pulleys 54 and 55 provided at the upper end of the second support 25.

  As shown in FIG. 2, a second weight 52 that urges the operation member 40 toward the second end along the first direction A is provided on the third support 26 at the second end in the first direction A. Are slidably supported in the vertical direction. The second weight 52 and the operation member 40 are connected by a string 56. The string 56 extends upward from the second weight 52, and extends through the pulley 57 provided on the second connecting member 23 and the pulley 58 provided on the front surface of the movable member 48. It is connected to two ends.

Here, a basic operation of the cutting apparatus 10 of the present embodiment will be described.
When cutting the sheet material S, the operator first places the sheet material S on the slit 31 of the cutting table 30.

  Next, as shown in FIGS. 4A and 5A, the worker stands in front of the cutting device 10 at the first end side in the first direction A, and holds the handle 42. To lower the operation member 40 at the initial position R0 in the second direction C.

  Here, as shown in FIG. 4B, before the cutting blade 44 enters the slit 31, the cover 46 abuts on the release roller 32 and is tilted via the hinge 47. Thus, the cover 46 is released from the cutting table 30.

  Further, at this time, as shown in FIG. 4C, the cutting blade 44 is guided into the slit 31 by the cover 46 and the plate 43 being brought into contact with each other with the escape roller 32 sandwiched therebetween. For this reason, the cutting blade 44 enters the slit 31 while being positioned by the release roller 32. Hereinafter, the position of the operation member 40 when the cutting blade 44 enters the slit 31 is referred to as a cutting start position R1.

  At this time, as shown in FIG. 7A, the movable member 48 descends with the descending of the operation member 40, so that the first weight 51 is pulled upward via the string 53. On the other hand, the tension of the string 56 is loosened as the movable member 48 is lowered, so that the second weight 52 is lowered.

  Next, the operator moves the handle 42 along the first direction A toward the first end. Thus, the sheet material S placed on the cutting table 30 is cut by moving the respective cutting blades 44 in the slit 31 along the first direction A. Hereinafter, the position of the operation member 40 when the cutting of the sheet material S by the cutting blade 44 ends is referred to as a cutting end position R2.

  At this time, as shown in FIG. 7B, the second weight 52 is pulled upward via the string 56 as the operation member 40 moves. When the operating member 40 moves from the cutting start position R1 to the cutting end position R2, the operating member 40 is not displaced in the second direction C, so that the first weight 51 is not displaced.

  Thereafter, when the operator releases his / her hand from the handle 42 of the operation member 40, the operation member 40 is biased toward the initial position R0 by the gravity of the first weight 51 and the second weight 52, as shown in FIG. By doing so, it returns to the initial position R0. More specifically, the operation member 40 is lifted obliquely rearward and upward in the second direction C by the gravity of the first weight 51, and the second end thereof in the first direction A by the gravity of the second weight 52. By pulling to the side, it returns to the initial position R0.

<Lock mechanism 60>
As shown in FIGS. 1 and 5, the cutting device 10 includes a lock mechanism 60 that regulates the operation member 40 from being displaced in the second direction C to a side away from the cutting table 30 during cutting of the sheet material S. Is provided.

  As shown in FIG. 5, a support shaft 61 extending along the depth direction B is connected to the second end side (the right end side in the figure) of the upper and lower third connection members 27. A cylindrical rotating cylinder 62 is rotatably supported on the outer periphery of the support shaft 61. On the outer peripheral surface of the rotating cylinder 62, a columnar mounting portion 64 is provided so as to protrude downward. A columnar locking portion 63 is provided on the mounting portion 64 so as to project downward. The locking portion 63 is inclined so that the lower side is located closer to the second end.

  A support shaft 65 extending in the up-down direction is connected to the first end side (the left end side in the figure) of the lower third connection member 27. A cylindrical rotating cylinder 66 is rotatably supported on the outer circumference of the support shaft 65. A columnar pressure receiving portion 67 is provided on the outer peripheral surface of the rotating cylinder 66 so as to project forward. In the middle of the pressure receiving portion 67, a columnar branch portion 68 protruding toward the second end side is connected.

The attachment part 64 and the branch part 68 are connected by a string 69.
A locking piece 70 protrudes along the first direction A on the side surface on the first end side of the movable member 48 on the second end side.

Here, the operation of the lock mechanism 60 will be described.
As shown in FIGS. 5A and 5B, when the operating member 40 is moved from the initial position R0 to the cutting start position R1, a locking portion 70 protruding from the movable member 48 is used. When the 63 is pressed, the rotating cylinder 62 is rotated about the support shaft 61. Thereby, the locking piece 70 passes through the locking portion 63. Since the attachment portion 64 and the branch portion 68 are pulled together by the string 69, when the locking piece 70 passes through the locking portion 63, the rotation cylinder 62 is rotated so that the locking portion 63 returns to the original position. (See FIG. 5B). Since the locking piece 70 is locked to the tip of the locking portion 63 in this manner, the displacement of the operating member 40 in the direction away from the cutting table 30 in the second direction C is restricted. Hereinafter, the position of the locking piece 70 with respect to the locking portion 63 at this time is referred to as a restriction position.

  As shown in FIG. 5C, when the operation member 40 is moved from the cutting start position R1 to the cutting end position R2, the connecting pillar 42a protruding from the main body 41 of the operation member 40 presses the pressure receiving portion 67. Thus, the pressure receiving portion 67 is tilted about the support shaft portion 65. Thereby, the rotating cylinder 62 is rotated about the support shaft 61 by pulling the attachment portion 64 via the string 69. As a result, when the locked state between the locking piece 70 and the locking portion 63 is released, the operation member 40 is allowed to be displaced in the second direction C in a direction away from the cutting table 30. Hereinafter, the position of the locking piece 70 with respect to the locking portion 63 at this time is referred to as an allowable position.

<Floating mechanism 71>
As shown in FIG. 8, below the first end side of the cutting table 30, the end of the sheet material S extending from the roll body R in conjunction with the return of the operating member 40 from the cutting end position R2 to the initial position R0. A floating mechanism 71 for lifting the part is provided.

  On the rear side of the cutting table 30, a columnar connecting member (not shown) extending along the first direction A is provided. A support shaft portion 72 is provided at a portion on the first end side of the connecting member so as to project obliquely downward and rearward. A movable body 73 is slidably supported on the outer periphery of the support shaft 72 along the axial direction of the support shaft 72. At the rear of the upper end of the movable body 73, a floating roller 74 is supported so as to be rotatable about an axis along the first direction A. The movable body 73 and the movable member 48 on the first end side are connected by a cord 75. A plurality of pulleys 76 to 79 that change the axial direction of the cord 75 are provided between the movable body 73 and the movable member 48 on the first end side.

Here, the operation of the floating mechanism 71 will be described.
As shown in FIG. 8A, in a state where the operation member 40 is at the initial position R0, the movable member 48 is located above the second support 25, and the movable body 73 is located at the upper end of the support shaft 72. positioned. At this time, the floating roller 74 is located at a projecting position projecting above the upper surface of the cutting table 30.

  As shown in FIG. 8B, when the operation member 40 is moved from the initial position R0 to the cutting start position R1, the tension of the string 75 is reduced as the movable member 48 is lowered. For this reason, the movable body 73 moves to the lower end of the support shaft 72, that is, the retracted position retracted below the upper surface of the cutting table 30 by its own weight.

  As shown in FIG. 8C, when the operating member 40 is moved from the cutting end position R2 to the initial position R0, the movable body 73 is directed upward through the string 75 as the movable member 48 rises. As a result, the support shaft 72 is moved to the upper end. That is, the floating roller 74 moves to the projecting position again.

In this manner, after the cutting of the sheet material S is completed, the end of the sheet material S is lifted above the upper surface of the cutting table 30 by the floating roller 74.
<Presser mechanism 80>
As shown in FIGS. 3 and 9, the cutting device 10 is provided with a pressing mechanism 80 that presses the sheet material S against the second transport roller 92.

  As shown in FIG. 9, a shaft portion 81 a extending along the first direction A protrudes from a portion of the first support 24 above the second connection member 23. The rotating body 81 is rotatably supported by the shaft portion 81a.

The rotating body 81 extends upward from the shaft portion 81a and bends to extend forward.
A first end of the pressing roller 82 located above the second transport roller 92 and extending along the first direction A is connected to a first end of the tip of the rotating body 81. ing.

  A shaft portion 83 a extending along the first direction A is connected to a first end side of the tip end portion of the rotating body 81. The upper end of a first engaging member 83 having a columnar shape is rotatably supported by the shaft 83a.

  The shaft portion 84a extending along the first direction A is connected to the second connecting member 23. The shaft portion 84a is provided below the second connecting member 23. A lower end portion of a second engaging member 84 having a columnar shape is rotatably supported by the shaft portion 84a.

The lower end of the first engaging member 83 and the upper end of the second engaging member 84 are connected via a hinge 85 provided on the rear side thereof.
A first arm 97 extending rearward in the depth direction B is connected to the second connecting member 23. A second arm 98 is provided at the front end of the first arm 97 so as to project upward and bend to extend rearward in the depth direction B. Further, a third arm 99 extending rearward is connected to a portion of the first support 24 above the rotating body 81.

  A support cylinder 89a having an axis extending in the up-down direction is connected to the rear end of the first arm 97. A movable shaft 89b is slidably supported in the vertical direction inside the support cylinder 89a.

  The rotating body 81 and the lower end of the movable shaft portion 89b are connected by a cord 87. The string 87 extends obliquely rearward and upward from the rotating body 81 and has a pulley 86a provided at the rear end of the third arm 99 and a pulley 86b provided at the rear end of the second arm 98. Is connected to the lower end of the movable shaft 89b.

  The lower end of the movable shaft portion 89b and the front surface of the second engagement member 84 are connected by a cord 88. The string 88 extends obliquely downward and forward from the lower end of the movable shaft portion 89b, and is provided on pulleys 86c and 86d provided on the rear and front portions of the base 20 and on the third support 26, respectively. It is connected to the front surface of the second engagement member 84 via 86e.

Here, the operation of the holding mechanism 80 will be described.
When the operator places the sheet material S on the slit 31 of the cutting table 30, the movable shaft portion 89b is lowered with respect to the support cylinder portion 89a as shown in FIG. 9B. In this state, when the cord 87 is pulled downward by the movable shaft portion 89b, the rotating body 81 rotates about the shaft portion 81a, and the pressing roller 82 is separated from the second transport roller 92. Further, as the tension of the cord 88 is loosened, each of the engagement members 83, 84 causes the shaft portions 83a, 84a to move until the lower surface of the first engagement member 83 and the upper surface of the second engagement member 84 contact each other. Rotate to the center. Thereby, the first engagement member 83 and the second engagement member 84 are located on a straight line.

Since a gap is formed between the second transport roller 92 and the pressing roller 82 in this manner, the end of the sheet material S can be placed on the cutting table 30 through the gap.
Thereafter, when cutting the sheet material S, as shown in FIG. 9A, the movable shaft portion 89b is raised with respect to the support cylinder portion 89a. Thereby, the string 88 is pulled by the movable shaft portion 89b, so that the second engagement member 84 is pulled forward. Further, the first engagement member 83 connected via the hinge 85 is also pulled forward. As a result, the first engagement member 83 and the second engagement member 84 are bent with the hinge 85 as a starting point. Further, when the tension of the cord 87 is loosened, the rotating body 81 rotates about the shaft portion 81a, so that the pressing roller 82 approaches the second conveying roller 92 and presses the sheet material S.

Next, the operation and effect of the present embodiment will be described.
(1) The sheet material cutting apparatus 10 includes a cutting table 30 having a slit 31 on which the conveyed sheet material S is placed and which extends along a first direction A intersecting the conveying direction of the sheet material S. Have. An operation member 40 is provided above the cutting table 30, and a cutting blade 44 is provided at a portion of the operation member 40 facing the upper surface of the cutting table 30. It has a support member (second support 25, movable member 48, and rail 28) that supports the operation member 40 movably along the second direction C and the first direction A that come into contact with and separate from the cutting table 30. I have. Further, the cutting device 10 includes an urging mechanism 50 that urges the operation member 40 toward the initial position R0 that is separated from the cutting table 30, and a lock mechanism 60. The lock mechanism 60 separates the operation member 40 from the cutting table 30 in the second direction C when the operation member 40 is moved from the initial position R0 to the cutting start position R1 at which the cutting blade 44 enters the slit 31. The position is changed to a restriction position for restricting displacement in the direction. On the other hand, in the lock mechanism 60, when the operating member 40 is moved in the first direction A from the cutting start position R1 to the cutting end position R2 where the cutting of the sheet material S by the cutting blade 44 ends, the second direction C Is changed to an allowable position that allows the operation member 40 to move in a direction away from the cutting table 30.

  According to such a configuration, since the lock mechanism 60 is provided, during the cutting of the sheet material S, that is, while the cutting blade 44 is moved from the cutting start position R1 to the cutting end position R2, in the second direction C. Displacement of the operation member 40 in a direction away from the cutting table 30 is restricted. For this reason, even if the operator releases his / her hand from the operating member 40 during cutting, the cutting blade 44 can be prevented from coming out of the slit 31. Thus, it is possible to reduce the burden on the worker and to suppress the occurrence of the uncut portion. Therefore, it is possible to suppress the occurrence of the cutting failure of the sheet material.

(2) The second direction C is inclined such that the upper side thereof is located on the cutting table 30 on the upstream side in the transport direction of the sheet material S.
In the cutting apparatus 10, the operator stands out on the downstream side in the conveying direction of the sheet material S from the slit 31 of the cutting table 30 and pulls out the sheet material S, and a portion of the cutting device 30 extending downstream from the slit 31 of the cutting table 30. Is cut by the cutting blade 44.

  According to the above configuration, when returning to the initial position R0 from the cutting end position R2, the operating member 40 and the cutting blade 44 move in the upstream direction in the transport direction of the sheet material S, that is, in the direction away from the worker. . For this reason, the cutting blade 44 can be kept away from the operator after the end of the cutting. Therefore, safety can be improved.

(3) A cover is provided to cover the entire cutting blade 44 from the downstream side in the transport direction of the sheet material S when the operation member 40 is moved from the initial position R0 to the cutting start position R1.
According to such a configuration, when the operation member 40 is moved from the initial position R0 to the cutting start position R1, the entire cutting blade 44 is covered by the cover 46 from the downstream side in the transport direction of the sheet material S. For this reason, safety can be improved.

  (4) A hinge 47 is provided at the upper edge of the cover 46 to support the cover 46 so as to be tiltable with respect to the operation member 40. Above the cutting table 30, when the operation member 40 is moved from the initial position R0 to the cutting start position R1, the cover 46 is tilted via the hinge 47 by abutting on the cover 46, thereby causing the cutting table 30 to move. On the other hand, a release roller 32 for releasing the cover 46 is provided.

  According to such a configuration, prior to the cutting blade 44 entering the slit 31, the cover 46 is tilted via the hinge 47 by contacting the release roller 32. This allows the cover 46 to escape from the cutting table 30. Thereby, when the operating member 40 is moved from the initial position R0 to the cutting start position R1, the cutting blade 44 is entirely covered by the cover 46 from the downstream side in the transport direction of the sheet material S and is cut into the slit 31. 44 can be realized.

  (5) The operating member 40 is provided with a plate 43 extending along both directions of the first direction A and the second direction C and having a cutting blade 44 attached thereto. When the operation member 40 is moved to R <b> 1, the cutting blade 44 is guided into the slit 31 by bringing the cover 46 and the plate 43 into contact with the escape roller 32 therebetween.

  When play is present between the support member (the second support 25, the movable member 48, and the rail 28) and the operation member 40, when the operation member 40 is moved from the initial position R0 to the cutting start position R1, the operation member 40 May be inclined with respect to the second direction C. In this case, there is a possibility that the cutting blade 44 does not enter the slit 31 and collides with the cutting table 30.

  On the other hand, it is conceivable to increase the width of the slit 31 so that the cutting blade 44 can easily enter the slit 31. However, in this case, when the operation member 40 is moved from the cutting start position R1 to the cutting end position R2, the operation member 40 moves in a posture shifted from the first direction A, and the sheet material S is moved. You will not be able to cut straight.

  In this regard, according to the above configuration, when the operation member 40 is moved from the initial position R0 to the cutting start position R1, the cutting is performed by the cover 46 and the plate 43 being brought into contact with the escape roller 32 therebetween. The blade 44 is guided into the slit 31. Thus, the cutting blade 44 enters the slit 31 while being positioned by the release roller 32. Therefore, the cutting blade 44 can reliably enter the slit 31 without increasing the width of the slit 31.

  (6) Provided movably between a protruding position protruding above the upper surface of the cutting table 30 upstream of the slit 31 in the conveying direction of the sheet material S and a retracting position retracting below the upper surface. Floating roller 74 is provided. A lifting mechanism 71 is provided for moving the lifting roller 74 to the projecting position in conjunction with the movement of the operating member 40 from the cutting end position R2 to the initial position R0.

  According to such a configuration, after the cutting of the sheet material S is completed, the end of the sheet material S is moved to the upper surface of the cutting table 30 by the floating roller 74 moved to the protruding position as the operating member 40 returns to the initial position R0. Can be lifted upwards. For this reason, it becomes easy for the operator to pull out the sheet material end portion to be cut next. Therefore, workability can be improved.

<Modification>
The above embodiment can be modified, for example, as follows.
The position of the floating mechanism 71 in the first direction A is not limited to the first end side, but can be changed to an arbitrary position in the first direction A.

-The floating mechanism 71 can be omitted.
The plate 43 may be omitted, and the cutting blade 44 may be directly attached to the main body 41 of the operation member 40.

-The cover 46 can be omitted.
-The release roller 32 can be omitted.
In the above-described embodiment, the configuration in which the second direction C is inclined such that the upper side is closer to the rear side, that is, the upper side in the conveying direction of the sheet material S on the cutting table 30 is inclined. Alternatively, the second direction can be along the vertical direction.

  -In above-mentioned embodiment, the biasing mechanism 50 using the gravity of the weights 51 and 52 was illustrated. Instead, an urging mechanism using the tension of a spring may be employed.

  DESCRIPTION OF SYMBOLS 10 ... Cutting device, 20 ... Base part, 21 ... 1st connection member, 21a ... Caster, 22 ... Prop, 23 ... 2nd connection member, 24 ... 1st support, 25 ... 2nd support (support member), 26 ... Third support column, 27: third connecting member, 28: rail (support member), 29: guard portion, 30: cutting table, 31: slit, 32: escape roller (escape portion), 40: operating member, 41: body Part, 41a pulley, 42 handle, 42a connecting column, 43 plate, 44 cutting blade, 45 nut, 46 cover, 47 hinge, 48 movable member (support member), 50 urging mechanism 51, a first weight, 52, a second weight, 53, a string, 54, 55, a pulley, 56, a string, 57, 58, a pulley, 60, a lock mechanism, 61, a support shaft, 62, rotation Cylinder, 63 ... locking part, 64 ... mounting part, 65 ... support shaft part, 66 ... times Cylinder, 67 pressure receiving part, 68 branch part, 69 string, 70 locking piece, 71 floating mechanism, 72 support shaft part, 73 movable body, 74 floating roller (floating part), 75 ... String, 76, 77, 78, 79 ... pulley, 80 ... holding mechanism, 81 ... rotating body, 81a ... shaft part, 82 ... pressing roller, 83 ... first engagement member, 83a ... shaft part, 84 ... second engagement Joint member, 84a: Shaft, 85: Hinge, 86a, 86b, 86c, 86d, 86e: Pulley, 87, 88: String, 89a: Support cylinder, 89b: Movable shaft, 90: Mounting part, 91: 1st conveyance roller, 92 ... 2nd conveyance roller, 97 ... 1st arm part, 98 ... 2nd arm part, 99 ... 3rd arm part, R ... roll body, S ... sheet material.

Claims (6)

A cutting table having a slit on which the conveyed sheet material is placed and which extends along a first direction intersecting with the conveyance direction of the sheet material;
An operating member provided above the cutting table,
A cutting blade provided at a portion of the operation member facing the upper surface of the cutting table,
A support member that movably supports the operation member along a second direction that is in contact with and away from the cutting table and the first direction;
An urging mechanism for urging the operating member toward an initial position separated from the cutting table;
When the operating member is moved from the initial position to a cutting start position at which the cutting blade enters the slit, the operating member is displaced in a direction away from the cutting table in the second direction. When the operating member is moved in the first direction from the cutting start position to a cutting end position at which cutting of the sheet material by the cutting blade ends, the second A lock mechanism that is changed to an allowable position that allows the operating member to move in a direction away from the cutting table in a direction,
Sheet material cutting device. The second direction is inclined such that the upper side is located on the upstream side in the conveying direction of the sheet material on the cutting table,
The sheet material cutting device according to claim 1. When the operating member is moved from the initial position to the cutting start position, the cover includes a cover that covers the entire cutting blade from a downstream side in the conveying direction of the sheet material on the cutting table,
The sheet material cutting device according to claim 1 or 2. A hinge is provided at an upper edge of the cover so as to tiltably support the cover with respect to the operation member,
Above the cutting table, when the operating member is moved from the initial position to the cutting start position, the cover is tilted through the hinge by abutting on the cover to the cutting table. An escape portion for allowing the cover to escape is provided.
The sheet material cutting device according to claim 3. The operating member is provided with a plate extending along both directions of the first direction and the second direction and having the cutting blade attached thereto,
When the operating member is moved from the initial position to the cutting start position, the cutting blade is guided into the slit by being brought into contact with the cover and the plate so as to sandwich the relief portion. ,
The sheet material cutting device according to claim 4. Move between a projecting position on the cutting table, which is located above the upper surface of the cutting table on the upstream side of the slit in the conveying direction of the sheet material, and a retracted position, which retracts below the upper surface. A lifting mechanism for moving the lifting member to the projecting position in conjunction with the operating member moving from the cutting end position to the initial position,
An apparatus for cutting a sheet material according to claim 1.