JP2009202278A - Sheet material cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent increase of running cost according to wear of a blade and blade chipping, etc. and to prevent generation of uncut parts when cutting curve and corner due to the presence of a "lower blade", in a sheet material cutting device. <P>SOLUTION: This sheet material cutting device has a cutting head part 3 provided with a cutter 15 capable of cutting a sheet material W on a supporting table 2. The cutting head part 3 is provided with a picking-up member 16 made into a forward lowering state, while arranging a distal end 32 ahead of a cutting edge of the cutter 15. The picking-up member 16 is provided with a pair of guide frames 37 by making a slit part 33 fitted with the cutter 15 therein as a boundary, while holding a gap between the picking-up member 16 and a side surface of the cutter 15. The guide frames 37 with each other are connected in a forward contractive shape at the cutting edge position of the cutter 15. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sheet material cutting device that can be suitably used for cutting a dough.

2. Description of the Related Art Conventionally, a cloth cutting device for cutting a cloth having a certain thickness or stiffness, such as a suit clothing, is known (see, for example, Patent Document 1).
This conventionally known fabric cutting device forms a sharp inner angle edge with a rotating blade rotated at high speed and a lower blade that is in contact with the lower edge of the rotating blade in an inclined state with respect to the fabric spread on the conveyor belt. Then, while pressing the inner corner edge from the fabric end side, the rotary blade and the lower blade are moved along the conveyor belt to cut out a predetermined-shaped fabric part.
In this dough cutting apparatus, the lower blade has a plate-like shape, and is pressed and urged by a thin leaf spring having a thickness of about 1 mm so as to lean against one side of the rotary blade. The state where the blade edge contacts the blade edge is maintained.

In short, the cutting mechanism of the cloth cutting apparatus cuts the cloth by the shearing action of the rotating blade and the lower blade while the cloth is biting into the sharp inner corner edge formed by the rotating blade and the lower blade. For this reason, it can also be said that the operation is the same as that of the so-called meshing portion of the scissors blade. In this case, the rotation of the rotary blade corresponds to the movement of opening and closing the scissors.
Therefore, in addition to the circular blade, the explanation that the polygonal shape can be suitably adopted for the rotary blade is supplemented (If the rotary blade is polygonal, the blade tip will sway radially when rotating, This means that a reciprocating motion is caused at the contact position with the lower blade, and a shearing action is likely to occur).
Japanese Patent Laid-Open No. 10-140468

In the above-described conventionally known cloth cutting device (Patent Document 1), the cloth is cut at the inner corner edge formed by the rotary blade and the lower blade, and therefore the existence of the lower blade is indispensable. Therefore, the wear of the blade edge occurs in both the rotary blade and the lower blade, and since the rotary blade and the lower blade are always kept in contact with each other, the wear of each blade edge is also in a short cycle and There was a problem that occurred as a large amount of wear.
In addition to this, the possibility of chipping of the blades is high in both the rotary blade and the lower blade, and these have become a serious cause of increasing the running cost.

In addition, the lower blade has a structure in which the contact state with the rotary blade is maintained by the leaf spring. Therefore, when the rotary blade and the lower blade are turned during cutting of a curve or a corner, the lower blade is moved from the rotary blade by the bending of the leaf spring. There was a problem of leaving. In addition, not only a curve and a corner, but also lint and cloth may be caught between the rotary blade and the lower blade during cutting.
In this case, naturally, uncutting (i.e., cutting failure) occurs in the cloth, and it is necessary to perform a confirmation work by an operator and a supplementary work for the uncut parts.
The present invention has been made in view of the above circumstances, and when cutting a sheet material such as a fabric, it prevents an increase in running cost due to wear of the blade edge, chipping of the blade, etc. Sheet material that prevents the occurrence of uncut parts when cutting curves and corners due to the existence of the sheet material, and can suppress or eliminate the troublesome cutting work associated with the uncut parts as much as possible. An object is to provide a cutting device.

In order to achieve the above object, the present invention has taken the following measures.
That is, the sheet material cutting device according to the present invention includes a support table, a cutting head portion provided with a cutter capable of cutting the sheet material supported on the support table, and the cutting head portion along the support table. And a cutting part moving mechanism for moving the cutting part.
The cutting head portion is provided with a turning mechanism that matches the cutting edge of the cutter in the direction advanced by the cutting portion moving mechanism (note that “the cutting edge” refers to the direction that is the tip of the cutting operation) ).

Also, the cutting head portion is a scooping member that is attached to the cutter that is swiveled by the swivel mechanism, the tip always being disposed at a position ahead of the blade edge of the cutter, and the tip is lowered forward and the tail end is raised. Is provided.
The scooping member is provided with a slit portion into which the cutter is fitted while maintaining a gap with the side surface of the cutter.
In addition, the scooping member has a structure having a pair of guide frames arranged on the left and right sides of the slit portion as a boundary, and the left and right guide frames close the slit portion at the blade edge position of the cutter, and , And are connected so as to form a pre-deflection shape toward the center of the slit portion.

Thus, in the sheet material cutting device according to the present invention, the scooping member provided in the cutting head portion holds the gap between the cutter side surface and the cutter cuts the sheet material by its own movement. It has become. The movement of the cutter itself corresponds to, for example, “rotation” if the cutter is a rotary blade, and corresponds to “vertical movement” if the cutter is a notch blade.
The scooping member is for scooping up the sheet material spread on the support table, and guiding the sheet material to a height (cutting point) at which the cutter generates a cutting action. The basic action as a technical idea is completely different from the “lower blade” possessed by 1). That is, the sheet material cutting device according to the present invention does not include a “lower blade”.

As a result, the cutter does not come into contact with the scooping member, and the cutter alone causes a cutting action on the sheet material. Therefore, blade wear is suppressed as much as possible. Of course, the frequency of blade chipping is also greatly suppressed or eliminated. Therefore, the running cost can be suppressed.
In addition, even if the positional relationship between the cutter and the scooping member is misaligned (gap deviation), it does not cause cutting failure. In other words, there is no leftover when cutting a curve or corner due to the presence of the `` lower blade '', so that the operator can perform confirmation work and supplementary work on the leftover part in connection with this leftover. Suppressed or eliminated as much as possible.

The scooping member has guide frames that are provided on both the left and right sides of the cutter, so that the left and right sheet materials can be scooped up skillfully when the cutting head turns in either the left or right direction. There is an advantage that directionality is not generated in the cutting conditions (similar sharpness can be produced in the corners and curves directed to the left and right).
The cutting head portion may be provided with a spring that biases the scooping member forward downward toward a predetermined downward angle.
In this way, the tip of the scooping member can be reliably brought into contact with the sheet material spread on the support table. Therefore, for example, when the sheet material has a cut, it is possible to reliably insert the tip of the scooping member into the cut.

That is, it is not always necessary to start cutting from the edge of the sheet material, and it is also possible to start cutting from the center of the sheet material, so that the sheet material can be effectively used (as a material) The amount of sheet material discarded can be reduced as much as possible to increase the material yield rate).
As the cutter of the cutting head unit, a cutter that rotates a rotary blade around a horizontal rotation axis can be adopted. In this case, it is preferable that the sheet material can be cut at a height at which the lower end of the rotary blade floats above the support table.

That is, the lower end of the rotary blade is lifted from the support table (held in a non-contact manner) so that the support table is not damaged (not cut with the rotary blade). Wear and roughening can be prevented, and both lead to lower running costs. There is also an advantage that the sheet material can be cut cleanly.
The support table is preferably provided with suction means for adsorbing the periphery of the cutting position of the sheet material by the cutting head portion to the upper surface of the table.
In this way, only the planned cutting position of the sheet material spread on the support table is scooped up by the scooping member, and the periphery of the sheet material is fixed to the support table. There is an advantage that can be cut out smoothly.

Further, since the cutting resistance with respect to the sheet material is reduced, there is an advantage that it is possible to cleanly and surely cut even a curve with a small radius of curvature or a corner bend and to increase the durability of the cutter.
In addition, even when the sheet material is a fabric and the like, and it is a synthetic fiber or the like, the heat generated by the cutting is suppressed, so that the welding to the cutter can be prevented, and the cut end can be finished beautifully. There is also.
The cutting head portion may have a first cutter that rotates the rotary blade around a horizontal rotation axis, and a second cutter that moves the notch blade with the blade tip downward.

  Thus, if it has a 1st and 2nd cutter, a cutter can be used properly according to a cutting position. Therefore, any cutting pattern can be handled.

  The sheet material cutting device according to the present invention can prevent an increase in running cost due to wear of the blade edge, chipping of the blade, or the like when cutting a sheet material such as a fabric, and there is a “lower blade”. As a result, it is possible to prevent uncut portions from being generated at the time of cutting a curve or a corner, so that the troublesome cutting work associated with the uncut portions is suppressed or eliminated as much as possible.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of a sheet material cutting device 1 according to the present invention. The sheet material cutting device 1 of the first embodiment is mainly for cutting a thin and weak sheet material W (for example, a knitted fabric) with a standard length or cutting it into a predetermined shape. As shown in FIG. 5, a support table 2, a cutting head unit 3 provided above the support table 2, and a cutting unit moving mechanism 4 that moves the cutting head unit 3 along the support table 2 are provided. Have.

Below the support table 2, there are provided suction means 5 and a suction part moving mechanism 6 for moving the suction means 5 along the lower surface of the support table 2. The suction means 5 is configured so that the air on the support table 2 can be sucked downward through the support table 2, and by this suction, around the planned position where the sheet material W is to be cut by the cutting head portion 3. Is adsorbed to the top surface of the table.
As the suction means 5 is provided, the support table 2 has air permeability that does not cause excessive deceleration, decompression, diffusion, or the like. In the first embodiment, the support table 2 is shown as an upper belt 11a of a felt belt conveyor 11 that circulates and runs in one direction by the belt drive unit 10.

Accordingly, the support table 2 not only supports the sheet material W in a state where the sheet material W is spread at the cutting processing position set as the lower region of the cutting head unit 3, but also carries the sheet material W into the cutting processing position and performs the cutting processing. The unloading of the sheet material W from the position can be automatically performed at a desired timing. The sheet material W is unwound and supplied from the roll state onto the support table 2 via the nip roller device 12.
During the cutting operation, the support table 2 (band belt conveyor 11) may be stopped or may be in a continuous conveyance state.

The cutting part moving mechanism 4 is a combination of two orthogonal directions (X direction and Y direction) orthogonal to each other in a plane so that the cutting head part 3 can be moved in a plane in an arbitrary direction. It is composed of a fluid pressure cylinder such as a cylinder, a feed screw mechanism using a ball screw or the like.
The suction part moving mechanism 6 is configured by appropriately combining two directions (X direction and Y direction) perpendicular to each other in a plane so that the suction means 5 can be moved in a plane in an arbitrary direction. Is the same.

Each of these moving mechanisms 4 and 6 can move the cutting head portion 3 and the suction means 5 in a plane integrally with each other (synchronized in the same speed and in the same direction) at the upper and lower portions sandwiching the support table 2. It has become.
As shown in FIGS. 2 to 4, the cutting head unit 3 includes a cutter 15 capable of cutting the sheet material W supported on the support table 2, a scooping member 16 provided in a state accompanying the cutter 15, and And a spring 17.
Further, the cutting head unit 3 is provided with a turning mechanism 20 that matches the cutting edge of the cutter 15 in the direction of travel by the cutting unit moving mechanism 4 and an elevating mechanism 21 that moves the cutter 15 up and down. The “blade edge” refers to a direction that is the tip of cutting (the same applies to the following description).

In the first embodiment, the cutter 15 is formed by a circular rotary blade 26 (round blade) that is rotatable about a rotary shaft 25 parallel to the upper surface of the support table 2. . The rotary blade 26 has a structure in which a driven wheel 27 connected to a rotary shaft 25 and a drive wheel 30 driven from a cutter motor 28 via a gear portion 29 are interlocked by a winding transmission means 31 to rotate. is there.
The scooping member 16 is provided at the lower end of the cutter 15 (hereinafter referred to as “rotating blade 26”). The scooping member 16 is a plate having a tip 32 formed in a front deflated shape. A slit portion 33 extending in the front-rear direction is provided at the center of the plate, and the rotary blade 26 is provided in the slit portion 33. The lower end of the can be fitted.

A stay portion 35 that rises upward is provided on the tail end 34 side of the scooping member 16, and the scooping member 16 is swingable in the direction in which the tip 32 moves up and down at the upper end portion of the stay portion 35. A hinge portion 36 is provided.
As described above, the lower end portion of the rotary blade 26 is fitted into the slit portion 33 of the scooping member 16, but the scooping member 16 is distributed on both the left and right sides of the slit portion 33 (rotating blade 26) as a boundary. It can be said that this is a configuration having a pair of guide frames 37.
The left and right guide frames 37 are connected while the slit portion 33 is closed at the cutting edge position of the rotary blade 26, and the tip 32 as the scooping member 16 is moved to the center of the slit portion 33. It can be said that it is formed in a pre-deflection shape.

The scooping member 16 is provided in a state where the tip 32 is disposed at the tip position where the cutting edge of the rotary blade 26 faces, and the tip 32 is lowered forward and the tail end 34 is raised (in other words, inclined). At this time, the spring 17 is provided so as to bias the scooping member 16 forward and downward toward a predetermined downward angle.
The tip 32 of the scooping member 16 stops at a lower level than the lower end of the rotary blade 26 when the rotary blade 26 is floating above the support table 2, and the rotary blade 26 can cut the sheet material W. When lowered to the level, the front end 32 is set so as to abut on the upper surface of the support table 2 (upper surface of the sheet material W if the sheet material W is supported) and slightly pushed up.

The tail end 34 of the scooping member 16 is ensured to float above the support table 2 (non-grounding) regardless of whether the rotary blade 26 is floating or descending.
The slit width of the slit portion 33 is formed wider than the blade thickness of the rotary blade 26, and the rotary blade 26 is arranged at the center of the slit portion 33. Therefore, in a state where the rotary blade 26 is fitted in the slit portion 33, a gap is held between the left and right guide frames 37 and the side surfaces of the rotary blade 26.
The scooping member 16 is attached to the gear portion 29 which also serves to support the driven wheel 27 and the driving wheel 30 so that the hinge portion 36 is connected via the support stay 40.

Therefore, no matter how the rotary blade 26 is turned by the turning mechanism 20, the incidental state (positional relationship including arrangement and posture) with respect to the rotary blade 26 is not always changed.
The turning mechanism 20 meshes the drive gear 44 of the turning motor 43 with the turning gear 42 that is fixed to the gear portion 29 so as to be fitted to the gear portion 29 in a state where the gear portion 29 is rotatably held with respect to the horizontal base 41. It is made into the structure made to do. As the turning motor 43, for example, a stepping motor, a servo motor or the like capable of position control is used.

The lifting mechanism 21 holds the rack gear 53 via a bracket 56 protruding upward from the horizontal base 41 in a state where the horizontal base 41 is held up and down with respect to the standing base 50 that is the basis of the cutting head portion 3. The rack gear 53 has a structure in which the drive gear 55 of the lifting motor 54 is engaged.
The suction means 5 provided at the lower part of the support table 2 sucks and holds the peripheral portion of the part to be cut in the sheet material W on the support table 2. In the first embodiment, the suction box 60 is disposed between the upper and lower belts 11a and 11b of the belt belt conveyor 11 with the opening facing upward, and the opening is disposed on the upper belt side. It is in contact with or close to the lower surface of the belt 11a (that is, the lower surface of the support table 2).

The suction box 60 is connected by a flexible hose 61 to a suction device 62 composed of a vacuum generator, a blower or the like. A thin perforated plate 63 (such as a punching metal) is stretched at the upper opening end of the suction box 60, and suction is performed through the hole.
Next, the operation | movement condition is demonstrated about the sheet | seat material cutting device 1 of the said structure.
When the sheet material W is sent out onto the support table 2 and the sheet material W is spread at the cutting processing position by the support table 2 (band belt conveyor 11), the cutting unit moving mechanism 4 causes the cutting head unit 3 to move. Is moved to a predetermined cutting start position on the sheet material W.

At this time, the suction unit moving mechanism 6 also moves the suction unit 5 so that the suction unit 5 is always positioned at a position directly below the sheet material W and the support table 2 when viewed from the cutting head unit 3.
For example, if the sheet material W is cut in a width direction (a direction perpendicular to the transport direction of the belt conveyor 11), the cutting head unit 3 has a rotary blade 26 on the outer side in the width direction of the sheet material W. It is arrange | positioned so that it may stand by in the upper position of.
In this state, the suction means 5 starts sucking, and the sheet material W is sucked and held on the support table 2. In the cutting head unit 3, the rotary blade 26 is rotationally driven by the cutter motor 28, and the traveling direction (cutting direction) of the rotary blade 26 is adjusted by the turning mechanism 20.

Next, the elevating mechanism 21 lowers the rotary blade 26, and the cutting unit moving mechanism 4 moves the cutting head unit 3 in the width direction of the sheet material W.
Here, the lower end of the rotary blade 26 is held at a height floating above the support table 2 and is in a non-grounded state.
At this time, since the cutting head portion 3 has the scooping member 16, the scooping member 16 scoops up the sheet material W spread on the support table 2, and the scooping member 16 is scooped up (of the support table 2. The rotary blade 26 is pressed against the sheet material W that has been levitated upward.

The left and right guide frames 37 of the scooping member 16 hold a gap between the side surfaces of the rotary blade 26 and the rotary blade 26 cuts the sheet material W by its own rotation. In other words, the scooping member 16 is not a “lower blade” provided in a conventionally known cloth cutting device (the one disclosed in Patent Document 1). For this reason, there is no occurrence of uncut residue when cutting a curve or corner due to the presence of the “lower blade”.
Further, blade wear on the rotary blade 26 is suppressed as much as possible. Of course, the frequency of blade chipping is also greatly suppressed or eliminated.

For this reason, the uncut portion of the sheet material W is suppressed as much as possible, so that the confirmation work by the operator and the complement operation of the uncut portion are also suppressed or eliminated as much as possible. Moreover, since the cutting resistance with respect to the sheet material W becomes small, even if the sheet material W is a synthetic fiber or the like, the cutting heat can be suppressed, so that the welding to the rotary blade 26 can be prevented, and the cut end can be finished cleanly. There is also an advantage.
Further, the sheet material W is cut while the lower end of the rotary blade 26 is floating above the support table 2 (not grounded), so that the support table 2 is not damaged by the rotary blade 26. Therefore, not only the wear of the rotary blade 26 but also the wear and roughening of the support table 2 are prevented, and both lead to a reduction in running cost.

On the other hand, when a predetermined shape is cut out from the sheet material W, the cutting unit moving mechanism 4 first positions the cutting head unit 3 at a cutting start position on the sheet material W (for example, the central portion of the sheet material W).
Then, after the turning mechanism 20 aligns the rotary blade 26 in a predetermined traveling direction (cutting direction), the elevating mechanism 21 has a height at which the lower end of the rotary blade 26 is pressed against the sheet material W (the lower end of the rotary blade 26 is slightly The cutting head portion 3 is once lowered until it reaches the support table 2, and immediately thereafter, the cutting head portion 3 is raised to the original height.

As a result, the sheet material W is provided with a cut corresponding to the length that the lower end of the rotary blade 26 bites into. Then, next, the cutting part moving mechanism 4 slightly retracts the cutting head part 3, and the lifting mechanism 21 lowers the cutting head part 3 again in this state.
When the cutting head unit 3 is lowered at this time, the height at which the lower end of the rotary blade 26 floats above the support table 2 is maintained (in a non-grounded state).
In this state, the cutting unit moving mechanism 4 and the suction unit moving mechanism 6 are operated, and the cutting head unit 3 and the suction unit 5 are moved in a plane in an integral relationship with each other according to the programmed plane movement pattern.

As the scooping member 16 is biased to the forwardly lowered state by the spring 17, the tip 32 of the scooping member 16 slides on the upper surface of the sheet material W as described above as soon as the cutting head portion 3 starts moving. It comes to be surely inserted with respect to the cut formed in.
As a result, the scooping member 16 scoops up the sheet material W spread on the support table 2, and the rotary blade 26 with respect to the scooped sheet material W (floated above the support table 2). Will be pressed.

During the movement of the cutting head unit 3, the turning mechanism 20 turns the cutting head unit 3 as necessary so that the cutting edge (cutting direction) of the rotary blade 26 matches the traveling direction of the cutting head unit 3.
Since the scooping member 16 has a structure having a guide frame 37 so as to be distributed on both the left and right sides of the rotary blade 26, the left or right side of the scooping member 16 can be moved even when the cutting head portion 3 is turned left or right. The sheet material W can be scooped up skillfully.
As a result, there is an advantage that no directionality is generated as a cutting condition (similar sharpness can be produced in a corner or a curve directed to the left or right). Thus, the cuts made in the sheet material W gradually extend as cutting lines, and the sheet material W is finally cut out into a predetermined shape.

Note that the sheet material W spread on the support table 2 is scooped up by the scooping member 16 only at the planned cutting position, and the periphery thereof is fixed (adsorbed and held) to the support table 2, so that the sheet material W is shifted to the cutting position. There is an advantage that accurate cut-out can be performed without occurrence of. In particular, even when cutting a curve with a small radius of curvature (a curve smaller than a radius of 20 mm is possible) or a corner bend (possible with a right angle or an acute angle) can be performed cleanly and reliably.
FIG. 6 shows a second embodiment of the sheet material cutting device 1 according to the present invention. In the sheet material cutting apparatus 1 according to the second embodiment, the cutting head unit 3 moves the first cutter 15A that rotates the rotary blade 26 around the horizontal rotary shaft 25 and the notch blade 65 with the blade tip downward. The second cutter 15B is provided.

The first cutter 15A is substantially the same as the cutter 15 described in the first embodiment.
The second cutter 15B holds a shank portion 66 that protrudes upward from the notch blade 65 so as to be movable up and down, and a link coupler 68 that swings freely at the upper end portion of the shank portion 66 via a swing fulcrum 67. Further, the rotation drive is transmitted to the link coupler 68 by the motor 70 via the eccentric wheel 69.
Further, a second turning gear 75 that meshes with the turning gear 42 provided in the first cutter 15A is provided, and the shank portion 66 passes through the central portion of the second turning gear 75 so that the shank portion 66 cannot rotate (moves up and down freely). Thus, the turning force by the turning mechanism 20 reaches the second cutter 15B.

Such a second cutter 15B is suitable for corner cutting in the case where a sufficient margin cannot be secured at the adjacent position of the cutting position in the sheet material W, or for corner cutting for making a right angle or an acute angle beautiful.
Thus, if it has 1st cutter 15A and 2nd cutter 15B, since cutter 15 can be properly used according to a cutting position, it can respond to any cutting pattern.
By the way, the present invention is not limited to the first and second embodiments.

For example, in the cutting head unit 3, the relative arrangement relationship, the detailed structure, the drive source, and the like of the turning mechanism 20 and the lifting mechanism 21 are not limited at all. The turning mechanism 20 and the lifting mechanism 21 can also be configured to turn and lift the cutting head unit 3 as a whole.
The support table 2 may be formed of a cloth or a silk screen, or may be formed of a flexible perforated plate (resin belt or the like) provided with countless fine holes.

The suction box 60 of the suction means 5 may have a structure for sucking a frame-like region surrounding the area excluding the region directly below the cutting head portion 3 or a structure for sucking the entire lower surface of the support table 2. Good.
As long as the sheet material W is thin and flexible, the material and thickness are not particularly limited. For example, the sheet material W is not limited to fabrics such as fabrics and synthetic fibers, but also non-woven fabrics, papers, It is possible to target a plastic sheet (film) or the like.
Further, the sheet material W may be supplied continuously from a roll state in a strip shape or sequentially supplied in a state of being roughly cut into predetermined dimensions.

It is the side view which expanded and showed the cutting head part which is cutting the sheet | seat material. It is the A section enlarged view of FIG. It is a BB line arrow directional view of FIG. FIG. 3 is a view taken along line CC in FIG. 2. It is the side view which showed 1st Embodiment of the sheet | seat material cutting device which concerns on this invention. It is the front view which showed the principal part about 2nd Embodiment of the sheet | seat material cutting device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet | seat cutting device 2 Support table 3 Cutting head part 4 Cutting part moving mechanism 5 Suction means 15 Cutter 16 Scooping member 17 Spring 15A 1st cutter 15B 2nd cutter 20 Turning mechanism 25 Rotating shaft 26 Rotating blade 32 Tip 34 Tail end 33 Slit part 37 Guide frame 65 Notch blade W Sheet material

Claims (5)

A cutting head part (3) provided with a support table (2), a cutter (15) capable of cutting the sheet material (W) supported on the supporting table (2), and the cutting head part (3) And a cutting section moving mechanism (4) for moving the head along the support table (2),
The cutting head part (3) is provided with a turning mechanism (20) for matching the cutting edge of the cutter (15) in the direction of travel by the cutting part moving mechanism (4). The tip (32) is always moved forward with the cutter (15), and the tip (32) is lowered forward and the tail end (34) is raised. A scooping member (16) is provided,
The scooping member (16) is provided with a slit portion (33) for fitting the cutter (15) while maintaining a gap with the side surface of the cutter (15). While having a pair of guide frames (37) distributed on both sides, the left and right guide frames (37) close the slit portion (33) at the cutting edge position of the cutter (15) and the slit portion ( 33) A sheet material cutting device, which is connected so as to form a pre-deflection shape toward the center of 33).   The sheet material cutting according to claim 1, wherein the cutting head (3) is provided with a spring (17) for urging the scooping member (16) downwardly toward a predetermined downward angle. apparatus.   The cutter (15) of the cutting head (3) rotates the rotary blade (26) around a horizontal rotary shaft (25), and the lower end of the rotary blade (26) is the support table (2). The sheet material cutting device according to claim 1 or 2, wherein the sheet material (W) can be cut at a height floating upward.   The suction table (2) is provided on the support table (2), the suction means (5) for adsorbing the vicinity of the cutting position of the sheet material (W) by the cutting head (3) to the upper surface of the table. The sheet cutting device according to claim 3.   The cutting head portion (3) has a first cutter (15A) for rotating the rotary blade (26) around a horizontal rotation axis (25), and a second cutter for vertically moving a notch blade (65) with the blade tip facing downward. The sheet material cutting device according to any one of claims 1 to 4, further comprising a cutter (15B).

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