KR20140138626A - Cutting machine - Google Patents

Abstract

Provided is a cutter capable of cutting a cutting sound at the time of cutting and a vibration of the device without causing a deviation of the work from the side. The cutter 1 cuts the workpiece W by lowering the blade 2 in the form of a flat plate so that the blade 2 is provided at the lower portion and both left and right end sides of the blade 2 are inserted into the guide post 13, A first extensible mechanism 5 for vertically moving one end side in the longitudinal direction of the blade 2 and a second extening mechanism 5 for moving the other end side in the longitudinal direction of the blade 2 up and down, The trick mechanism 6 and the first and second exten- tic mechanisms 6 and 7 are simultaneously operated to lower the blade 2 horizontally or to move the first and second exten- sic mechanisms 6 and 7 And a control unit which is operable with a time difference to perform an operation of inclining and lowering the blade 2.

Description

CUTTING MACHINE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter for cutting various films, metal plates, and the like into flat-plate blades.

Conventionally, a method of vertically lowering the blade in a guillotine style by a cutting machine of this kind, a Thomson blade or a pinnacle blade, or a shaver by an upper blade and a lower blade, or a method of pivoting the blade to shake it off is adopted.

Japanese Patent Application Laid-Open No. 2009-107096 Japanese Patent Publication No. 7-100706

(Summary of the Invention)

(Problems to be Solved by the Invention)

For example, in the case of cutting a film or the like containing a metal such as a laminated film of various layers such as a display panel film or a metal such as a circuit electrode as a work, the cut surface is required to be clean and the dimensional precision is strictly required, Further, it is required to suppress the cutting noise at the time of cutting the work and the vibration of the apparatus. However, the conventional cutting machine has not sufficiently satisfied the demand for reduction of cutting noise and vibration. Particularly, in the case of a hard work or a wide work, there was a strong tendency that cutting noise and vibration were large. Further, depending on the characteristics of the film to be a workpiece, the vicinity of the blade of the workpiece at the time of cutting should not be suppressed. In the case of cutting a wide workpiece, however,

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cutting machine capable of cutting a cutting sound at the time of cutting and a vibration of the device without causing a deviation of the work from the side.

In the cutting apparatus according to the present invention,

1. A cutter for cutting a work by lowering a blade of a flat plate shape,

A punching board having the blade at its lower portion and being movable up and down by inserting both left and right ends of the blade into a guide post;

A first eccentric mechanism for connecting an arm to one end side of the punching half and moving one end side in the longitudinal direction of the blade up and down,

A second extensible mechanism connecting an arm to the other end side of the punching half and moving the other end side in the longitudinal direction of the blade up and down,

And a control unit for actuating the first and second exten- tic mechanisms simultaneously to lower the blade horizontally or to move the first and second exten- sic mechanisms with a time difference to lower the blade by inclining it do.

According to the extensible mechanism, the pushing down force of the blade against the work can be increased. Therefore, the drive source of the exten- sic mechanism can be a small load, and even a small-load drive source, a hard work or a wide work can be cut smoothly. In addition, since the punching machine having the blade is inserted and supported by the guide posts so as to be movable up and down on both sides of the guide post, the punching machine with the blade can be smoothly moved up and down. Therefore, the blade and the stress applied to the device are alleviated at the time of cutting the work, so that the cutting sound and the device vibration at the time of cutting the work can be suppressed small.

Further, since the punching machine with the blade is moved up and down along the guide posts at the left and right ends, it is possible to cut the workpiece straightly and accurately. When the first and second exten- tic mechanisms are operated with a time lag, the blade is inclined to the straight state without being bent in the forward and backward directions by the elastic deformation allowed in the insertion portion of the guide post in the punching half Can be lowered.

From the above, it is possible to set a cutting method capable of suppressing the cutting sound or the device vibration to a small extent at the time of cutting the work according to the characteristics of the work.

In the cutter,

The control unit controls the first and second extensible mechanisms such that the one end in the lengthwise direction of the blade is followed by the blade in a state in which the blade tip is in contact with the entire width of the work, In which the work is cut from one side and the height of the both ends of the blade is lowered at the final position of descending to make the edge of the blade a horizontal posture so as to cut the work can do.

According to the above configuration, since the edge of the blade is brought into contact with the entire width of the work and the work is cut from one side, the impact at the time of contact between the blade and the work can be suppressed. Then, the workpiece can be gradually cut from the one end to the other end in the width direction by displacing the blade from the inclined posture to the horizontal posture while descending. As a result, it is possible to prevent a large load from being applied to the blade or the work when cutting the work. Therefore, even when the workpiece is rigid or wide, the cutting noise at the time of cutting the workpiece and the vibration of the apparatus can be suppressed to a small degree.

In addition, when the work is cut, the edge of the blade is brought into contact with the entire width of the work. Therefore, when the work is cut, the work can be restrained by the blade itself. This makes it possible to cut the workpiece straight without cutting off the workpiece at the time of cutting the workpiece. Therefore, in the case of cutting a workpiece or a wide workpiece other than the cut portion that should not be paved, the workpiece can be cut straight without holding the workpiece paper without being shifted to the side.

In the cutter,

The blade unit is constituted by the blade holder having the blade and the blade fixed,

The blade holder is attached to a slide base of a linear guide mechanism provided in the punching half,

A slide mechanism for sliding the blade unit in the lateral direction through the linear guide mechanism with respect to the punching half is connected to the blade unit or the slide base,

The control unit may control the slide mechanism to move the blade unit horizontally to slide the blade in the lateral direction to cut the workpiece.

By sliding the blade in the lateral direction by the slide mechanism, the substantial cutting angle of the blade relative to the work can be further reduced, and the cutting ability of the blade is sharpened, so that the cutting surface of the work can be further cleaned. Further, when the one end side of the blade that is lowered by the slide mechanism is slid in the lateral direction, the workpiece can be pulled by the blade so that the load applied to the blade or the work at the time of cutting the workpiece can be further reduced . Therefore, it is possible to further suppress the cutting noise at the time of cutting the work and the vibration of the apparatus.

In addition, since the portion of the blade unit constituted by the blade and the blade holder is slid with respect to the punching half by the linear guide mechanism and the slide mechanism, the blade can be slid with low inertia. Therefore, even in the case of cutting a wide work, the movement of the blade in the transverse direction can be precisely controlled, and vibration and cutting noise of the device due to lateral movement of the blade can be suppressed.

In the cutter,

It is preferable that an interval between the support positions of the blades of each arm in the first and second exten- tic mechanisms is set to 1/2 to 1/3 with respect to the total length of the blades.

If the distance between the supporting positions of the blade suspensions, that is, the distance between the connecting portions of the punching bars in the arms of the first and second extensible mechanisms is wider than 1/2 of the total length of the blade, the center of the blade is warped at the time of cutting On the other hand, if the gap is narrower than 1/3 of the total length of the blade, both ends of the blade may be bent at the time of cutting. Accordingly, even if the blade is of a long length (for example, 1 m or more), the distance between the support positions of the blades of the arms is set to 1/2 to 1/3 of the entire length of the blade, So that the workpiece can be cut straight. In addition, when the blade is slanted, the difference in rotation angles of the first and second exten- sic mechanisms is neither small nor large, so that it is easy to control the first and second exten- sic mechanisms. The distance between the support positions of the blades of each arm can be appropriately set within a range of 1/2 to 1/3 of the total length of the blade, depending on the material, thickness, size, etc. of the work, and thickness of the blade .

In the cutter,

And both ends of the punching table are provided with a linear bearing through which the guide posts are inserted and which are provided with rolling elements.

By this linear bearing, the punching machine having the blade can be smoothly moved up and down, so that the cutting noise and the device vibration at the time of cutting the work can be suppressed to a small degree. In addition, it is easy to adjust the amount of elastic deformation allowed in the inserted portion of the guide post in the punching half when the first and second extensible mechanisms are operated with a time lag by the direct-acting bearing. In this case, the punching half can be smoothly moved up and down even by elastic deformation by the linear bearing.

As described above, according to the cutting machine according to the present invention, it is possible to suppress the cutting noise at the time of cutting a work and the vibration of the apparatus, and to cut the workpiece in a state in which the workpiece does not deviate to the side, have. As a result, even when a work such as a laminated film, a metal film, or the like has a hard work or a work which should not be papermaked except for a cut portion, or a wide work or the like is cut, Precision is good, and cut surface can be cut cleanly.

1 is a front view showing a cutter of an embodiment.
2 is a partial sectional view showing a linear guide mechanism with a blade unit attached thereto;
3 is a schematic view showing the work end portion on which the stopper is arranged from above.
4 is a schematic diagram for explaining an example of the operation at the time of cutting the work.

(Mode for carrying out the invention)

Hereinafter, embodiments will be described with reference to the accompanying drawings.

1, the cutter 1 descends a blade 2 supported in a suspended manner on a head 11 and rotates the work W placed on a blade receiving member 14 attached to the mount 12 It is cutting. The work W is, for example, a film obtained by laminating a plurality of layers such as a film for a display panel, a film including a metal such as a circuit electrode, and various other films, a metal plate, and the like. The frame 12 is supported by a frame 15. The head 11 is attached to an upper portion of a guide post 13 standing upright at two left and right ends of the mount 12 and provided above the mount 12. The box-shaped punching plate 17 is inserted into the guide posts 13 through the linear bearings 18 at both left and right ends thereof, and is movable up and down. And a knife unit 20 fixed to the blade holder 21 is arranged at a lower portion of the punching plate 17. The linear bearing 18 is provided with a rolling member such as a roller or a ball (not shown) so as to prevent rattling between the linear bearing 18 and the guide post 13. Thereby, when the blade 2 is moved up and down, the punching plate 17 is moved up and down along the guide post 13, so that the blade 2 is prevented from swinging or bending back and forth.

2, the blade unit 20 is constituted by a blade 2 and a blade holder 21, the blade 2 has a horizontally long flat plate shape, and a blade edge 2a of both the blades 2, And is detachably attached to the blade holder 21 by a plurality of bolts 22. The blade unit 20 is attached to the linear guide mechanism 3 provided on the lower surface of the punching plate 17. [ The linear guide mechanism 3 includes a guide member 32 having a substantially rectangular cross section attached to the lower surface of the punching plate 17 and a guide member 32 slidably disposed on the inner side of the guide member 32 through rollers of the rolling member 33 And a slide base 31 having a generally trapezoidal cross section. A blade holder 21 of the blade unit 20 is attached to the lower surface of the slide base 31. Therefore, the blade unit 20 is configured to be slidable in the lateral direction together with the slide base 31 with respect to the punching half 17.

The head 11 is provided with a first exten- sic mechanism 5 for connecting the lower end of the arm 54 to one end in the longitudinal direction of the punching bar 17 and moving the one end in the longitudinal direction of the blade 2 up and down And a second exten- sic mechanism 6 for connecting the lower end of the arm 64 to the other end side in the longitudinal direction of the punching half 17 and moving the other end side in the longitudinal direction of the blade 2 up and down . The punching tool 17 is lowered by the first and second extensible mechanisms 5 and 6 so that the blade edge 2a of the blade 2 is pressed against the blade receiving member 14 on which the work W is disposed And the blade 2 is lowered until the workpiece is reached. An upper blade (moving blade) of one blade is attached to the blade holder 21 as a blade 2 and a lower blade (fixed blade) which overlaps the blade is fixed to the table 12 to form a workpiece W It may be cut.

The first exten- tric mechanism 5 includes a first motor 51 constituted by a servomotor, an axle shaft 52 rotationally driven by the first motor 51, and an eccentric shaft 52 eccentrically A cam 53 to be installed, and an arm 54 to be connected to the axle shaft 52. [ The lower end of the arm 54 is attached to a support shaft 55 provided on the punching unit 17 via a bearing guide 56 on one end side in the longitudinal direction of the punching unit 17, And one end side in the longitudinal direction of the punching plate 17 is supported in a suspended manner. The rotary motion of the axle shaft 52 by the first motor 51 is converted into the upward and downward motion of the arm 54 from the first exten- tric mechanism 5, The blade unit 20 (the blade holder 21 and the blade 2) provided at the lower portion of the punching plate 17 is moved up and down by one side. The lower end of the arm 64 is connected to a bearing shaft 65 provided on the punching plate 17 by a bearing guide (not shown). The second axenic mechanism 6 is also configured similarly to the first exten- tric mechanism 5, The other end side in the longitudinal direction of the punching plate 17 is suspended by the arm 64 and the second motor 61 is driven The other end side of the blade unit 20 (the blade holder 21 and the blade 2) is moved up and down from the lower surface arm 64.

Here, the supporting shafts 55, 65 at the lower end portions of the arms 54, 64 become the blade-suspending supporting positions. The distance between the support positions of the blade suspensions in the arms 54 and 64 (the support shaft 55 and the support shaft 65) is set to 1/2 to 1/3 of the entire length of the blade 2 have. That is, if the distance between the supporting positions of the blades of the arms 54 and 64 is wider than 1/2 of the total length of the blades 2, there is a fear that the blade 2 is bent in the middle at the time of cutting, If the distance between the supporting positions of the blades of the arms 54 and 64 is smaller than 1/3 of the total length of the blades 2, both ends of the blades 2 may be bent at the time of cutting. Therefore, even if the blade 2 has a longer overall length (for example, 1 m or more), the distance between the supporting positions of the blades of the arms 54, 64 is about 1/2 to 1/3 It is possible to maintain the straight state without cutting the blade 2 at the time of cutting so that the workpiece W can be cut straight.

Further, when the blade 2 is inclined at a predetermined angle, the difference in the stroke position of the arms 54, 64 becomes smaller as the support position of the blades of the arms 54, 64 approaches the end side of the punching pan 17 It is necessary to increase the difference between the rotational angles of the cams 53 and 63 of the exten- sic mechanisms 5 and 6 in order to lengthen the rotational angle of the punching disc 17, It is necessary to reduce the difference in rotation angles of the cams 53 and 63 of the exten- sic mechanisms 5 and 6 in order to shorten the difference in the stroke positions of the arms 54 and 64. [ By setting the distance between the supporting positions of the blades of the arms 54 and 64 to be 1/2 to 1/3 of the total length of the blade 2, the cams of the first and second exten- sic mechanisms 5 and 6 The difference in the rotation angles of the first and second axes 53 and 63 is neither small nor large, so that it is easy to control the first and second exten- sic mechanisms.

The distance between the support positions of the blades of the arms 54 and 64 is set to be within a range of 1/2 to 1/3 of the entire length of the blade 2 so that the material, Or the thickness of the blade 2 or the like.

The arms 54 and 64 of the first and second exten- tic mechanisms 5 and 6 are provided with length adjusting mechanisms 54a and 64a. The length adjusting mechanisms 54a and 64a are formed by screwing an adjusting screw provided at each end portion with a nut whose direction of screw is opposite to that of the end portion of each of the arms 54 and 64, The lengths of the arms 54 and 64 are adjusted by rotating them. The length adjustment mechanisms 54a and 64a may be structured such that adjustment screws provided with bolts in opposite directions at both ends are screwed to the nuts at the ends of the arms 54 and 64, respectively.

The cutter 1 is also provided with a slide mechanism 7 for sliding the blade 2 in the lateral direction. The slide mechanism 7 includes a third motor 71 constituted by a geared motor or the like, an extensible 72 for converting the rotational motion of the third motor 71 into a linear motion, And an arm 73 for transmitting motion. The arm 73 is connected to the end of the blade holder 21 of the blade unit 20. Since the blade unit 20 is slidably installed in the lateral direction relative to the punching plate 17 by the linear guide mechanism 3, by sliding the blade unit 20 in the lateral direction by operating the slide mechanism 7, The work W can be cut by sliding the work W in the lateral direction. The lowering blade 2 can be laterally moved to either side by the slide mechanism 7 so that the blade 2 is slid and cut from either side of the work W or the blade 2 is rotated It is possible to cut the workpiece W in various ways depending on the type of the workpiece W or the like, for example, by slanting and cutting the workpiece W by cutting the blade 2 by swinging. The arm 73 of the slide mechanism 7 is connected to the blade holder 21 but is not limited thereto and may be connected to the blade 2 or the slide base 31. [ In addition, the slide mechanism 7 may be a moving means such as a ball screw mechanism or a cylinder mechanism instead of the excentric 72. Further, the slide mechanism 7 is provided on one end side of the blade holder 21, but it may be formed on both left and right sides, and the slide mechanism 7 itself may not be provided.

Further, in the cutter 1, a stopper 16 for holding the end portion in the width direction of the work W in the movement inhibition state is provided. 3, the stopper 16 is provided so as to abut against the end portion of the work W, except the lowered position of the blade 2. Thereby, the workpiece W can be held so as not to cause problems such as causing the workpiece W to be laterally offset or loosened in the width direction by the movement of the blade 2 at the time of cutting. Therefore, cutting of the workpiece W can be smoothly and cleanly cut even in the case where the one end side of the blade 2 is preceded and the other end side is followed to descend and cut. Further, the stopper 16 is attached to the table of the table 12 in a freely adjustable manner in the work width direction, and can cope with various work widths. Further, the stoppers 16 are provided for both end portions in the width direction of the work W (see Fig. 1), but they may be provided only on one end side.

The cutter 1 is provided with a control unit (not shown) for controlling the operation of the blade 2 when cutting the work W. The following describes an example of the operation of the cutter 1 with reference to Fig. do. 4 shows the movement of the axes 52 and 62 in the first and second exten- sic mechanisms 5 and 6 on the left side and the movement of the blade 2 in the right side thereof.

First, when the work W is placed on the blade receiving member 14 at a predetermined position by a conveying means (not shown), the first and second exten- sic mechanisms 5 and 6 are actuated to move the blade 2 The blade 2 is lowered to a position where the blade edge 2a is horizontally abutted against the entire width of the work W (Fig. 4 (a)). As a result, the workpiece W is restrained and fixed in position so as not to be laterally offset by the blade 2.

Then, the first exten- tric mechanism 5 is operated in advance to lower the one end side of the blade 2 (Fig. 4 (b)), And the other end side of the blade 2 is lowered (Fig. 4 (c)). At this time, the moving speed of the second exten- tric mechanism 6 (the rotational speed of the second motor 61) is the same as that of the first exten- tric mechanism 5. As a result, the blade edge 2a of the blade 2 is lowered in the inclined posture in which the one end side is the lower side position, and the workpiece W is cut off from one end in the width direction (Fig. 4 (b) (c)).

When the movable position of the first exten- tric mechanism 5 is rotated to the vicinity of the end point, that is, the cam 53 is rotated to the vicinity of the bottom dead center, the moving speed of the first exten- tric mechanism 5 is reduced ), The movable position of the second exten- tric mechanism 6 is attached to the movable position of the first exten- tric mechanism 5, and the blade tip 2a is lowered while being displaced from the inclined posture to the horizontal posture. As a result, the work W is gradually cut in the width direction from one end to the other end.

In the descending final position, the bottom dead center of each of the axes of the axes 52 and 62 of the first and second exten- sic mechanisms 5 and 6 is aligned and the edge 2a is set in a horizontal posture, When cutting the entire width (Fig. 4 (d)), the cutting of the work W is completed.

The above cutting operation is an example in which the slide mechanism 7 is not operated. However, during the period from the start of cutting of the work W to the end of cutting (Figs. 4 (b) to 4 (d) The blade 2 may be slid in the lateral direction by operating one end of the blade 2 by pulling the blade 2 in the lateral direction.

As described above, according to the cutting machine 1 of the present embodiment, since the blade edge 2a of the blade 2 is cut off from one side of the work W with the whole width of the workpiece W, And the work W can be suppressed. The workpiece W is gradually cut from the one end to the other end in the width direction by displacing the blade 2 from the inclined posture to the horizontal posture while descending the blade 2 so that the blade 2 and the workpiece W So that a large load can be avoided. Therefore, even when the workpiece W is hard or wide, the cutting noise at the time of cutting the work and the vibration of the apparatus can be suppressed to a small degree.

Since the cutting edge 2a of the blade 2 abuts against the entire width of the work W when cutting the work W, The work W can be prevented from deviating to the side and can be cut straight while the work W is held. Therefore, in the case of cutting a workpiece W other than a cut portion that should not be papermaking and a wide workpiece W (for example, a workpiece thickness / work width = 0.2 to 1 mm / 1000 to 1600 mm) It is possible to cut the workpiece W straight without cutting off the workpiece W without holding the workpiece paper member. Therefore, even in the case of cutting a workpiece W or a wide workpiece W which should not be padded other than a hard workpiece W or a cut portion such as a laminated film, a film including a metal or the like or a metal plate, It is possible to cut a cutting sound or device vibration with a small degree of accuracy and a good cutting accuracy.

Further, since the operation of the blade 2 is performed by the exten- sic mechanisms 5 and 6, the downward pushing force of the blade 2 against the work W can be increased. This makes it possible to make the motors 51 and 61 driven by the exten- tic mechanisms 5 and 6 a small load and even the motors 51 and 61 with a small load can be made of a rigid work W and a wide work W ) Can be smoothly and reliably cut. The punching plate 17 having the blade 2 is inserted and supported by the guide posts 13 so as to be movable up and down at both ends of the guide post 13 so that the punching plate 17 provided with the blade 2 can be smoothly moved up and down Can be moved. Therefore, stress applied to the blade 2 and the device during the cutting of the work is relaxed, so that the cutting noise and the device vibration at the time of cutting the work can be suppressed small.

The punching tool 17 having the blade 2 is vertically moved along the guide post 13 through the linear bearings 18 provided with the rolling elements at both left and right ends so that the workpiece W is cut straight and precisely can do. When the first and second exten- tic mechanisms 5 and 6 are operated with a time lag, the elastic deformation allowed in the insertion portion of the guide post 13 in the punching half 17 causes the blade 2 The blade 2 can be lowered in an inclined state in a straight state without being bent in the forward and backward directions. When the first and second exten- tric mechanisms 5 and 6 are operated with a time lag by the linear bearing 18, they are allowed in the insertion portion of the guide post 13 in the punching half 17 The amount of elastic deformation can be easily adjusted. In addition, the punching plate 17 having the blade 2 can be smoothly moved up and down by the linear bearing 18, so that cutting noise and device vibration at the time of cutting the work can be suppressed to a small degree.

The blade 2 is slid in the lateral direction by pulling the one end side of the blade 2 in the lateral direction by the slide mechanism 7 so that the substantial cutting angle of the blade 2 with respect to the work W is further reduced And the cutting ability of the blade 2 is sharpened, so that the cut surface of the work W can be further cleaned. The workpiece W can be pulled and cut by the blade 2 by pulling the one end side of the blade 2 to be lowered in advance in the lateral direction so that the blade 2 and the workpiece W The load applied can be further reduced. Therefore, it is possible to further suppress the cutting noise at the time of cutting the work and the vibration of the apparatus.

Since the portion of the blade unit 20 constituted by the blade 2 and the blade holder 21 is slid with respect to the punching plate 17 by the linear guide mechanism 3 and the slide mechanism 7, The blade 2 can be slid with inertia. Therefore, even in the case of cutting a wide work W, the lateral movement of the blade 2 can be precisely controlled and the vibration and cutting noise of the apparatus caused by the lateral movement of the blade 2 can be suppressed .

From the above, according to the present cutting machine 1, it is possible to set a cutting method capable of suppressing a cutting sound or a device vibration at the time of cutting a workpiece to a small degree according to the characteristics of the workpiece W.

The present invention is not limited to the above-described embodiments, and various changes can be made within the scope of the present invention.

4 (d)), the moving speed of the first exten- tric mechanism 5 is maintained at the constant speed, while the speed of the second exten- tric mechanism 5 6 may be increased and the movable position of the second exten- tric mechanism 6 may be attached in accordance with the movable position of the first exten- tric mechanism 5. [

The moving speed of the first and second exten- tric mechanisms 5 and 6 is set at a constant speed and the moving speed of the second exten- tric mechanism 6 that starts to operate late is set to the first excentric mechanism 5, and the movable positions of the first and second exten- sic mechanisms 5, 6 may be matched at the descending final position.

Further, the movable position of the second exten- tric mechanism 6 that follows is positioned ahead of the movable position of the preceding first exten- tric mechanism 5, and at the final position of the descent, the first and second exten- tric mechanisms 5, The movable positions may be matched. As a result, the blade 2 is inclined at one end side of the blade 2, and then the other end side of the blade 2 is positioned at the lower side so that the blade 2 is inclined, Can be cut. Therefore, even if the work W having a relatively large thickness (for example, the work thickness is 1 mm or more), cutting noise and device vibration can be suppressed and cut smoothly.

4 (a)), the first and second exten- sic mechanisms 5 and 6 are actuated so as to move the cutting edge 2a of the blade 2 to the full width of the work W The table on which the arms 54 and 64 are extended by the length adjusting mechanisms 54a and 64a or the head 11 is lowered or the table receiving member 14 of the table 12 is attached is raised . For example, the height of the head 11 can be freely adjusted by providing a lifting mechanism for moving the lifting mechanism 14 up and down. In addition, a table on which the blade receiving member 14 is mounted on the table 12 can be elevated So that the height of the table can be freely adjusted.

Further, the control unit may simultaneously operate the first and second exten- sic mechanisms 5 and 6 to lower the blade 2 in the horizontal posture to cut the work W. In this case, when a relatively soft film or a narrow width film is used as the work W, the work W can be cut quickly in a state where the cutting sound or the vibration of the apparatus is small. It is also possible for the control unit to appropriately operate the first and second extensible mechanisms 5 and 6 and the slide mechanisms 7 and 8 to transversely move the blade 2 in a horizontal posture while lowering it, The blade 2 may be moved in various manners in accordance with the work W such as swinging the blade 2 downward while descending the blade 2 in the inclined posture or lowering the blade 2 while displacing the blade 2 from the inclined posture to the horizontal posture.

It is also possible to arrange the workpiece holding member to hold the workpiece W in the vicinity of the blade 2 at the time of cutting the workpiece.

1 cutter
2 blade
2a tip
3 Direct acting guide mechanism
5 First Extensible Mechanism
6 2nd Exercise Organization
7 slide mechanism
11 head
12 brackets
13 Guide posts
14 blade receiving member
16 stopper
17 Punching Bar
18 Straight Bearing
20 blade unit
21 Blade holder
51 first motor
52, 62 Axis Trigger Axis
53, 63 cam
54, 64 arm
54a, 64a,
55, 65 Support shaft
56, 66 Bearing guide
61 Second motor
71 Third motor
72 ex trick
73 Cancer
W work

Claims (5)

1. A cutter for cutting a work by lowering a blade of a flat plate shape,
A punching plate having the blade at its lower portion and being movable up and down by inserting both left and right end sides thereof into a guide post,
A first exten- sic mechanism for connecting an arm to one end side of the punching unit and vertically moving one end side in the longitudinal direction of the blade,
A second extensible mechanism connecting an arm to the other end side of the punching half and moving the other end side in the longitudinal direction of the blade up and down,
And a control unit for actuating the first and second exten- tic mechanisms simultaneously to lower the blade horizontally or to move the first and second exten- sic mechanisms with a time difference to lower the blade by inclining it Cutting machine. The method according to claim 1,
The control unit controls the first and second exten- tic mechanisms such that the one end in the lengthwise direction of the blade is preceded and the other end is lowered to follow the blade in a state in which the blade tip is in contact with the entire workpiece width, And cutting control means for cutting the work by cutting the work from one side with the blade tip in a tilted posture and lowering the blade so that the height of the both ends of the blade is in conformity with the bottom end position of the blade, . 3. The method according to claim 1 or 2,
The blade unit is constituted by the blade holder having the blade and the blade fixed,
The blade holder is attached to a slide base of a linear guide mechanism provided in the punching half,
A slide mechanism for sliding the blade unit in the lateral direction through the linear guide mechanism with respect to the punching half is connected to the blade unit or the slide base,
Wherein the control section comprises a control arrangement for cutting the work by slidably moving the blade in a lateral direction by sliding the blade unit in a lateral direction by operating the slide mechanism. 4. The method according to any one of claims 1 to 3,
Wherein a distance between the support positions of the blades of each arm in the first and second extensible mechanisms is set to 1/2 to 1/3 of the total length of the blade. 5. The method according to any one of claims 1 to 4,
Wherein a linear bearing is provided on both end sides of the punching table, the straight bearing including a rolling member inserted through the guide post.

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