JP6152946B2 - Cutting machine - Google Patents

Description

  The present invention relates to a cutting machine that cuts various films, metal plates, and the like with a flat blade.

  Conventionally, this type of cutting machine employs a Thomson blade, a pinnacle blade, or a method in which the blade is vertically lowered in a guillotine manner by using a shear or the like by an upper blade and a lower blade, or a method in which the blade is rocked and pushed. .

JP 2009-107096 A JP-A-7-100706

  For example, when cutting a film containing various layers such as a display panel film or a film containing a metal such as a circuit electrode as a workpiece, the cut surface is clean and dimensional accuracy is strictly required. Needless to say, it is also required to suppress the cutting noise and vibration of the device when cutting the workpiece. However, the conventional cutting machine does not fully satisfy the demand for reducing cutting noise and vibration. In particular, when the workpiece is hard or wide, the cutting noise and vibration tend to increase. In addition, when cutting a workpiece that should not be pressed near the blade of the workpiece or a wide workpiece due to the characteristics of the film that is the workpiece, a conventional cutting machine may cause lateral displacement of the workpiece.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cutting machine that can cut without causing a lateral displacement of a workpiece with low cutting noise and vibration of the apparatus during cutting. .

The cutting machine according to the present invention is
A cutting machine that lowers a flat blade to cut a workpiece,
A punching machine equipped with the above-mentioned cutter at the lower part and configured to be movable up and down by inserting the left and right ends into guide posts;
A first eccentric mechanism that connects an arm to one end side of the punching machine and moves the one end side in the length direction of the blade up and down;
A second eccentric mechanism for connecting an arm to the other end side of the punching machine and moving the other end side in the length direction of the cutter up and down;
The first and second eccentric mechanisms can be moved simultaneously to lower the cutter horizontally, or the first and second eccentric mechanisms can be moved with a time difference to tilt and lower the cutter. And a control unit that
A blade unit is constituted by the blade and the blade holder to which the blade is fixed,
Attach the blade holder to the slide base of the linear guide mechanism provided on the punching board,
A slide mechanism for sliding the blade unit laterally with respect to the punching board via the linear motion guide mechanism is connected to the blade unit or the slide base;
The said control part is equipped with the control structure which slides a cutter and cut | disconnects a workpiece | work by moving the said slide mechanism and sliding a cutter unit to a horizontal direction .

  According to the eccentric mechanism, it is possible to increase the pressing thrust of the cutter against the workpiece. Therefore, the drive source of the eccentric mechanism can be made a small load, and a hard work or a wide work can be cut smoothly even with a drive source with a small load. Further, the punching machine provided with the cutter is inserted and supported by the guide posts so as to be movable up and down at the left and right ends, so that the punching machine provided with the cutter can be smoothly moved up and down. Therefore, the stress applied to the blade and the device when the workpiece is cut is relaxed, and the cutting noise and device vibration during the workpiece cutting can be suppressed to a small level.

In addition, the punching machine provided with the cutter is moved up and down along the guide posts on the left and right ends, so that the workpiece can be cut straight and with high accuracy. When the first and second eccentric mechanisms are moved with a time difference, the blade is inclined in a straight state without the blade being in the front-rear direction due to the elastic deformation allowed in the insertion portion of the guide post in the punching machine. Can be lowered.
From the above, according to the characteristics of the workpiece, it is possible to set a cutting method that can suppress cutting noise and apparatus vibration at the time of cutting the workpiece.
In addition, by sliding the cutter in the lateral direction by the slide mechanism, the substantial cutting angle of the cutter with respect to the workpiece can be further reduced, the sharpness of the cutter can be sharpened, and the cut surface of the workpiece can be further cleaned. Moreover, when the one end side of the cutter lowered in advance by the slide mechanism is slid in the lateral direction, the workpiece can be cut by the cutter, and the load applied to the cutter and the workpiece can be further reduced when the workpiece is cut. it can. Therefore, it is possible to further reduce the cutting noise and the vibration of the apparatus when the workpiece is cut.
Further, since the portion of the blade unit constituted by the blade and the blade holder is slid with respect to the punching machine by the linear guide mechanism and the slide mechanism, the blade can be slid with low inertia. Therefore, even when a wide workpiece is cut, the lateral movement of the blade can be controlled with high accuracy, and the vibration and cutting noise of the apparatus accompanying the lateral movement of the blade can be suppressed.

In the above cutting machine,
The control unit causes the one end side in the length direction of the blade to precede and follow the other end side of the blade with the blade edge in contact with the entire width of the work by the first and second eccentric mechanisms. Control structure that lowers the blade edge of the cutter to an inclined posture, cuts the workpiece from one side, and descends so that the heights of both ends of the blade edge coincide with each other at the final lowered position to cut the workpiece with the blade edge of the blade in a horizontal posture Can

  With the above configuration, the cutting edge of the blade is brought into contact with the entire width of the work and the work is cut from one side, so that the impact at the time of contact between the cutting tool and the work can be suppressed. Then, the workpiece can be gradually cut from one end to the other end in the width direction by displacing the blade from the inclined posture to the horizontal posture while lowering the blade. Thereby, it is possible to prevent a large load from being applied to the blade or the workpiece when cutting the workpiece. Therefore, even when the workpiece is hard or wide, it is possible to reduce cutting noise and vibration of the apparatus when cutting the workpiece.

  Further, since the cutting edge of the cutter is brought into contact with the entire width of the workpiece when cutting the workpiece, the workpiece can be pressed by the cutter itself when cutting the workpiece. Thereby, it can cut | disconnect straight in the state which hold | maintained the workpiece | work, without raise | generating the lateral displacement of a workpiece | work at the time of workpiece | work cutting | disconnection. Therefore, when cutting a workpiece that should not be pressed except the cutting portion or a wide workpiece, even if there is no workpiece pressing member, the workpiece can be cut straight without being displaced laterally.

In the above cutting machine,
It is desirable that the blade suspension position interval of each arm in the first and second eccentric mechanisms is set to 1/2 to 1/3 with respect to the overall length of the blade.
When the distance between the blade hanging positions, that is, the distance between the connecting portions of the punching machines in each arm of the first and second eccentric mechanisms is larger than ½ of the entire length of the blade, the middle of the blade is cut during cutting. On the other hand, if the distance is smaller than 1/3 of the entire length of the blade, both ends of the blade may be broken during cutting. Therefore, even if the blade has a long overall length (for example, 1 m or more), the blade lifting position interval of each arm is set to 1/2 to 1/3 of the overall length of the blade, so that the blade is cut during cutting. The workpiece can be cut straight while maintaining a straight state. In addition, when the blade is inclined, the difference in rotation angle between the first and second eccentric mechanisms does not increase or decrease, and the first and second eccentric mechanisms can be easily controlled. In addition, the blade lifting position interval of each arm is appropriately set within the range of 1/2 to 1/3 of the entire length of the blade depending on the material, thickness, size, etc. of the workpiece, the thickness of the blade, etc. can do.

In the above cutting machine,
It is desirable that linear motion bearings each including a rolling element are provided on both end sides of the punching board.
With this linear bearing, it is possible to smoothly move the punching machine provided with the blade up and down, and to suppress the cutting noise and the apparatus vibration when cutting the workpiece. Further, when the first and second eccentric mechanisms are moved with a time difference, the amount of elastic deformation allowed at the insertion portion of the guide post in the punching board can be easily adjusted by the linear motion bearing. In this case, the punching machine can be smoothly moved up and down by the linear motion bearing even when elastically deformed.

  As described above, according to the cutting machine according to the present invention, it is possible to suppress cutting noise and vibration of the apparatus when cutting a workpiece, and hold the workpiece without causing lateral displacement even without a workpiece pressing member. Can be cut straight in the state. As a result, even when cutting a work that must not be pressed except for a hard work or a cutting part, such as a laminated film or a film containing metal, or cutting a wide work, etc., the cutting sound and vibration of the device during cutting Is small, the dimensional accuracy is good, and the cut surface can be cut cleanly.

It is a front view which shows the cutting machine of embodiment. It is a partial cross section figure which shows the linear motion guide mechanism which attached the blade unit. It is the schematic diagram which looked at the workpiece | work edge part which arrange | positions a stopper from the top. It is a schematic diagram for demonstrating an example of the operation | movement at the time of a workpiece | work cutting | disconnection.

Hereinafter, embodiments will be described with reference to the accompanying drawings.
As shown in FIG. 1, the cutting machine 1 lowers the cutter 2 suspended by the head 11 and cuts the workpiece W arranged on the blade receiving member 14 attached to the gantry 12. The workpiece W is, for example, various other films such as a film in which various layers are laminated like a film for a display panel, a film containing a metal such as a circuit electrode, a metal plate, or the like. The gantry 12 is supported by a frame 15. The heads 11 are attached to the upper part of the guide posts 13 that are erected on the left and right ends of the gantry 12 and are installed above the gantry 12. The box-shaped punching disc 17 is configured to be vertically movable by being inserted into the guide post 13 via the linear motion bearings 18 at both right and left ends. A blade unit 20 in which the blade 2 is fixed to the blade holder 21 is disposed below the punching machine 17. The linear motion bearing 18 includes a rolling element such as a roller or a ball (not shown), and is set so that no play occurs between the linear motion bearing 18 and the guide post 13. Thereby, when the cutter 2 is moved up and down, the punching disc 17 is moved up and down along the guide post 13, so that the cutter 2 is prevented from swinging back and forth and bending.

  Referring also to FIG. 2, the blade unit 20 includes a blade 2 and a blade holder 21, and the blade 2 has a horizontally long flat plate shape, and a plurality of blade holders 21 are arranged on the blade holder 21 with the blade edges 2 a facing downward. The bolts 22 are detachably attached. The blade unit 20 is attached to the linear motion guide mechanism 3 installed on the lower surface of the punching board 17. The linear guide mechanism 3 has a substantially gate-shaped cross-section guide member 32 attached to the lower surface of the punching disc 17, and a substantially trapezoidal cross section disposed inside the guide member 32 so as to be slidable via a roller of a rolling element 33. A slide base 31 is provided. 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 board 17.

  The head 11 is connected to the lower end of the arm 54 on one end side in the length direction of the punching machine 17, and the first eccentric mechanism 5 that moves the one end side in the length direction of the cutter 2 up and down, and the length of the punching machine 17. The lower end of the arm 64 is connected to the other end side in the vertical direction, and the second eccentric mechanism 6 that moves the other end side in the length direction of the blade 2 up and down is disposed. Then, the punching disc 17 is lowered by the first and second eccentric mechanisms 5 and 6, and the cutter 2 is lowered until the cutting edge 2 a of the cutter 2 reaches the blade receiving member 14 on which the workpiece W is arranged, thereby cutting the workpiece. In addition, it is good also as a structure which attaches the upper blade (movable blade) to the blade holder 21 as the blade 2, and fixes the lower blade (fixed blade) which overlaps with this upper blade to the mount frame 12, and cut | disconnects the workpiece | work W.

  The first eccentric mechanism 5 is connected to a first motor 51 configured by a servo motor, an eccentric shaft 52 that is rotationally driven by the first motor 51, a cam 53 that is eccentrically disposed on the eccentric shaft 52, and the eccentric shaft 52. Arm 54. A lower end portion of the arm 54 is attached to one end side in the length direction of the punching plate 17 via a bearing guide 56 on a support shaft 55 provided on the punching plate 17, and the arm 54 extends in the length direction of the punching plate 17. One end side is suspended. The first eccentric mechanism 5 converts the rotational movement of the eccentric shaft 52 by the first motor 51 into the vertical movement of the arm 54 and moves the one end side in the length direction of the punching board 17 up and down to move the punching board 17. The one end side of the blade unit 20 (the blade holder 21 and the blade 2) disposed in the lower part of the blade is moved up and down. The second eccentric mechanism 6 is also configured in the same manner as the first eccentric mechanism 5, and the punching disc 17 is provided at the lower end portion of the arm 64 with a support shaft 65 provided on the punching disc 17 via a bearing guide 66. The other end side in the length direction of the punching disc 17 is suspended by the arm 64 and when the second motor 61 is driven, the arm unit 64 (the blade holder 21 and the blade holder 21) The other end side of the blade 2) is moved up and down.

  Here, the support shafts 55 and 65 at the lower ends of the arms 54 and 64 become the blade suspension position. The distance between the blade suspension positions (support shaft 55 and support shaft 65) in each arm 54, 64 is set to 1/2 to 1/3 with respect to the entire length of the blade 2. That is, if the distance between the blade hanging positions of the arms 54 and 64 is larger than ½ of the entire length of the blade 2, the middle of the blade 2 may be broken during cutting, while the blades of the arms 54 and 64 are cut. If the suspension position interval is narrower than 1/3 with respect to the entire length of the cutter 2, there is a risk that both ends of the cutter 2 will be bent during cutting. Therefore, even if the blade 2 has a long overall length (for example, 1 m or more), the blade suspension position interval between the arms 54 and 64 is set to 1/2 to 1/3 with respect to the entire length of the blade 2. It is possible to cut the workpiece W straight while maintaining a straight state without cutting the blade 2 during cutting.

Further, when the blade 2 is inclined at a predetermined angle, the eccentric mechanism 5 is used to lengthen the difference in the stroke position of the arms 54 and 64 as the blade suspension position of the arms 54 and 64 approaches the end of the punching board 17. , 6 cams 53, 63 need to have a large difference in rotation angle, and the difference between the stroke positions of the arms 54, 64 is shortened as the blade suspension position of the arms 54, 64 approaches the center of the punching board 17. Therefore, it is necessary to reduce the difference between the rotation angles of the cams 53 and 63 of the eccentric mechanisms 5 and 6. However, the cams 53 and 63 of the first and second eccentric mechanisms 5 and 6 are set by setting the blade lifting position intervals of the arms 54 and 64 to 1/2 to 1/3 of the overall length of the blade 2. Thus, the difference in rotation angle between the first and second eccentric mechanisms can be easily controlled.
It should be noted that the blade suspension position interval between the arms 54 and 64 is within a range of 1/2 to 1/3 with respect to the overall length of the blade 2, and the material, thickness, size, etc. of the workpiece W, and the thickness of the blade 2 It can be appropriately set depending on the situation.

  The arms 54 and 64 in the first and second eccentric mechanisms 5 and 6 are provided with length adjusting mechanisms 54a and 64a, respectively. These length adjusting mechanisms 54a and 64a are formed by screwing an adjusting screw provided with a female screw having a reverse screw direction at each end into a male screw at the end of each arm 54 and 64 divided into two. The lengths of the arms 54 and 64 are adjusted by rotating the adjusting screw. The length adjusting mechanisms 54a and 64a may be configured such that adjustment screws having opposite male screws at both ends are screwed into female screws at the ends of the arms 54 and 64 divided into two. Good.

  Further, the cutting machine 1 is provided with a slide mechanism 7 that slides the blade 2 in the lateral direction. The slide mechanism 7 includes a third motor 71 composed of a geared motor or the like, an eccentric 72 that converts the rotational motion of the third motor 71 into a linear motion, and an arm 73 that transmits the linear motion by the eccentric 72. This arm 73 is connected to the end of the blade holder 21 of the blade unit 20. Since the blade unit 20 is provided so as to be slidable in the lateral direction with respect to the punching disc 17 by the linear motion guide mechanism 3, the blade unit 2 is slid in the lateral direction by moving the slide mechanism 7. Can be cut laterally to cut the workpiece W. With this slide mechanism 7, the descending cutter 2 can be moved laterally to either the left or right side, and the workpiece W can be cut by sliding the cutter 2 from either the left or right side, or sliding the cutter 2 obliquely. The workpiece W can be cut in various manners depending on the type of the workpiece W and the like, for example, by cutting the workpiece 2 and swinging the blade 2 for cutting. 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. Further, the slide mechanism 7 may be a moving means such as a ball screw mechanism or a cylinder mechanism instead of the eccentric 72. Moreover, although the slide mechanism 7 is provided on one end side of the blade holder 21, it may be provided on both left and right ends, or the slide mechanism 7 itself may not be provided.

  Further, the cutting machine 1 is provided with a stopper 16 that holds the end of the workpiece W in the width direction in a movement-blocking state. Referring to FIG. 3, the stopper 16 is provided so as to contact the end of the workpiece W before and after the lowered position of the cutter 2. Thereby, the workpiece | work W can be hold | maintained so that the malfunction of causing the workpiece | work W to carry out lateral shift | offset | difference to the width direction by the movement of the blade 2 at the time of a cutting | disconnection, or to produce a slack will be produced. Therefore, even when cutting one of the blades 2 with the one end side leading and following the other end side, the workpiece W can be cut smoothly and cleanly. The stopper 16 is mounted on the table of the gantry 12 so as to be movable and adjustable in the workpiece width direction, and can be adapted to various workpiece widths. Further, the stoppers 16 are respectively installed on both ends in the width direction of the workpiece W (see FIG. 1), but may be installed only on one end side.

  The cutting machine 1 includes a control unit (not shown) that controls the operation of the blade 2 when cutting the workpiece W. Hereinafter, an example of the operation of the cutting machine 1 will be described with reference to FIG. . FIG. 4 shows the movement of the eccentric shafts 52 and 62 in the first and second eccentric mechanisms 5 and 6 on the left side, and the movement of the blade 2 corresponding to the movement on the right side.

  First, when the workpiece W is placed at a fixed position on the blade receiving member 14 by a conveying means (not shown), the first and second eccentric mechanisms 5 and 6 are moved so that the cutting edge 2a of the cutter 2 is the workpiece W. The blade 2 is lowered to a position where it is in contact with the full width horizontally (FIG. 4 (a)). Thereby, the workpiece | work W is hold | suppressed by the cutter 2 so that it may not slip | deviate sideways, and a position is fixed.

  Next, the first eccentric mechanism 5 is moved in advance to lower one end side of the blade 2 (FIG. 4 (b)), and the second eccentric mechanism 6 follows and moves with a certain time delay. Then, the other end side of the blade 2 is lowered (FIG. 4C). At this time, the movable speed of the second eccentric mechanism 6 (the rotational speed of the second motor 61) is the same as that of the first eccentric mechanism 5. As a result, the cutting edge 2a of the blade 2 is lowered in an inclined posture with one end side in a lower position, and the workpiece W is cut from one end in the width direction (FIGS. 4B and 4C).

  When the movable position of the first eccentric mechanism 5 is near the end point, that is, when the cam 53 rotates to near the bottom dead center, the movable speed of the first eccentric mechanism 5 is reduced (FIG. 4C), and the second The movable position of the eccentric mechanism 6 is brought close to the movable position of the first eccentric mechanism 5, and the blade edge 2a is lowered while being displaced from the inclined posture to the horizontal posture. Thereby, the workpiece W is gradually cut from one end to the other end in the width direction.

  At the final lowered position, the bottom dead center of each of the eccentric shafts 52 and 62 of the first and second eccentric mechanisms 5 and 6 is made to coincide, and the entire width of the workpiece W is cut with the blade edge 2a in a horizontal posture (FIG. 4). (D)), the cutting of the workpiece W is completed.

  The above-described cutting operation is an example in which the slide mechanism 7 is not moved. However, the slide mechanism 7 is movable during the period from when the workpiece W starts to be cut to when the cutting is finished (FIGS. 4B to 4D). Then, the cutter 2 may be slid in the lateral direction by pulling one end side of the cutter 2 laterally.

  As described above, according to the cutting machine 1 of the present embodiment, the cutting edge 2a of the blade 2 is brought into contact with the entire width of the workpiece W and cut from one side of the workpiece W. Can be suppressed. Then, the workpiece 2 is gradually cut from one end to the other end in the width direction by moving the blade 2 from the inclined posture to the horizontal posture while descending, so that a large load is applied to the blade 2 and the workpiece W when cutting the workpiece. Can be avoided. Therefore, even when the workpiece W is hard or wide, it is possible to reduce the cutting noise and vibration of the apparatus when cutting the workpiece.

  Further, since the cutting edge 2a of the cutter 2 is in contact with the entire width of the workpiece W when the workpiece W is cut, the workpiece W can be pressed by the cutter 2 itself to prevent the workpiece W from being laterally displaced. The workpiece W can be cut straight while being held. Therefore, when cutting a workpiece W that should not be pressed except the cutting portion, a wide and thin workpiece W (for example, workpiece thickness / work width = 0.2 to 1 mm / 1000 to 1600 mm), etc. Even if there is no workpiece pressing member, the workpiece W can be cut straight while being held without being laterally displaced. Therefore, even when cutting a workpiece W that cannot be pressed except for a hard workpiece W or a cutting part, such as a laminated film, a film containing metal, or a metal plate, or a wide workpiece W, etc. The cutting sound and the apparatus vibration are small, the dimensional accuracy is good, and the cut surface can be cut cleanly.

  Moreover, since the cutter 2 is moved by the eccentric mechanisms 5 and 6, the pressing thrust of the cutter 2 against the workpiece W can be increased. Therefore, the motors 51 and 61 that are the driving sources of the eccentric mechanisms 5 and 6 can be made to have a small load, and even with the motors 51 and 61 having a small load, a hard work W or a wide work W can be smoothly and reliably obtained. Can be cut. Further, since the punching machine 17 provided with the cutter 2 is inserted and supported by the guide posts 13 so as to be movable up and down at both left and right ends, the punching machine 17 provided with the cutter 2 can be smoothly moved up and down. Therefore, the stress which the blade 2 and the apparatus receive at the time of a workpiece | work cutting | disconnection is relieved, and the cutting sound at the time of a workpiece | work cutting | disconnection and apparatus vibration can be suppressed small.

  Further, the punching machine 17 provided with the cutter 2 is moved up and down along the guide post 13 via the linear motion bearings 18 provided with rolling elements on both right and left ends, so that the workpiece W can be cut straight and accurately. it can. When the first and second eccentric mechanisms 5 and 6 are moved with a time difference, the cutter 2 is straight without being in the front-rear direction due to the elastic deformation allowed in the insertion portion of the guide post 13 in the punching disc 17. The blade 2 can be tilted and lowered. Then, when the first and second eccentric mechanisms 5 and 6 are moved with a time difference, the amount of elastic deformation allowed at the insertion portion of the guide post 13 in the punching disc 17 can be easily adjusted by the linear bearing 18. be able to. Further, the punching machine 17 provided with the blade 2 can be smoothly moved up and down by the linear motion bearing 18, and the cutting noise and the apparatus vibration at the time of cutting the workpiece can be suppressed small.

  Further, the sliding mechanism 7 pulls one end side of the blade 2 sideways and slides the blade 2 also in the lateral direction, whereby the substantial cutting angle of the blade 2 with respect to the workpiece W can be further reduced, and the sharpness of the blade 2 is improved. It becomes sharper and the cut surface of the workpiece W can be further cleaned. Moreover, by horizontally pulling one end side of the blade 2 that is lowered in advance, the workpiece W can be cut by the blade 2, and the load applied to the blade 2 and the workpiece W when the workpiece is cut can be further reduced. . Therefore, it is possible to further reduce the cutting noise and the vibration of the apparatus when the workpiece is cut.

  Further, 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 disc 17 by the linear guide mechanism 3 and the slide mechanism 7, the blade 2 is slid with low inertia. Can do. Accordingly, even when a wide workpiece W is cut, the lateral movement of the blade 2 can be controlled with high accuracy, and the vibration and cutting noise of the apparatus accompanying the lateral movement of the blade 2 can be suppressed. it can.

  As mentioned above, according to this cutting machine 1, according to the characteristic of the workpiece | work W, the cutting method which can suppress a cutting sound and apparatus vibration small at the time of a workpiece | work cutting | disconnection can be set.

In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary of this invention.
In the above embodiment, the movable speed of the first eccentric mechanism 5 is reduced (FIG. 4D). However, the movable speed of the first eccentric mechanism 5 remains the same, and the movable speed of the second eccentric mechanism 6 remains unchanged. May be increased so that the movable position of the second eccentric mechanism 6 catches up with the movable position of the first eccentric mechanism 5.

  In addition, the first and second eccentric mechanisms 5 and 6 are set to have the same moving speed, and the moving speed of the second eccentric mechanism 6 which starts moving after a delay is set to be the same as that of the first eccentric mechanism 5 which has started moving first. It may be faster than the movable speed so that the movable positions of the first and second eccentric mechanisms 5 and 6 coincide with each other at the final lowered position.

  Further, the movable position of the following second eccentric mechanism 6 is overtaken by the movable position of the preceding first eccentric mechanism 5, and the movable positions of the first and second eccentric mechanisms 5, 6 are set at the final lowered position. You may make it match. As a result, the workpiece W can be cut with the one end side of the blade 2 positioned lower and the blade 2 inclined, and then the other end side of the blade 2 positioned lower and the blade 2 inclined. Therefore, even if the workpiece W is relatively thick (for example, the workpiece thickness is 1 mm or more), the workpiece W can be smoothly cut while suppressing cutting noise and apparatus vibration.

  When the cutting edge 2a of the cutter 2 is first brought into contact with the full width of the workpiece W (FIG. 4A), the length adjusting mechanism 54a is not moved without moving the first and second eccentric mechanisms 5, 6. 64a, the arms 54, 64 may be extended, the head 11 may be lowered, or the table to which the blade receiving member 14 of the gantry 12 is attached may be raised. For example, the head 11 may be configured to be provided with an elevating mechanism that moves up and down so that the height position can be freely adjusted. In addition, the elevating mechanism is provided on the table to which the blade receiving member 14 is attached in the gantry 12 to provide a table height. Can be adjusted freely.

Further, the control unit may simultaneously move the first and second eccentric mechanisms 5 and 6 to lower the blade 2 in a horizontal posture and cut the workpiece W. In this case, when a relatively soft film, a narrow film, or the like is used as the workpiece W, the workpiece W can be quickly cut in a state where the cutting sound and the apparatus vibration are small. Further, the control unit appropriately moves the first and second eccentric mechanisms 5 and 6 and the slide mechanisms 7 and 8 to move the blade 2 horizontally while lowering the blade 2 in a horizontal posture, or to move the blade 2 in a tilted posture. The blade 2 can be moved in various manners according to the workpiece W, such as being moved horizontally while being lowered, or swinging so that the blade 2 is lowered while being displaced from the inclined posture to the horizontal posture.
Further, a work pressing member may be provided, and the work W may be pressed and held near the blade 2 when cutting the work.

DESCRIPTION OF SYMBOLS 1 Cutting machine 2 Cutting tool 2a Cutting edge 3 Linear motion guide mechanism 5 First eccentric mechanism 6 Second eccentric mechanism 7 Slide mechanism 11 Head 12 Base 13 Guide post 14 Blade receiving member 16 Stopper 17 Punching disc 18 Linear motion bearing 20 Blade unit 21 Blade holder 51 First motor 52, 62 Excentric shaft 53, 63 Cam 54, 64 Arm 54a, 64a Length adjusting mechanism 55, 65 Support shaft 56, 66 Bearing guide 61 Second motor 71 Third motor 72 Exen 73 Arm W work

Claims (4)

A cutting machine that lowers a flat blade to cut a workpiece,
A punching machine equipped with the above-mentioned cutter at the lower part and configured to be movable up and down by inserting the left and right ends into guide posts;
A first eccentric mechanism that connects an arm to one end side of the punching machine and moves the one end side in the length direction of the blade up and down;
A second eccentric mechanism for connecting an arm to the other end side of the punching machine and moving the other end side in the length direction of the cutter up and down;
The first and second eccentric mechanisms can be moved simultaneously to lower the cutter horizontally, or the first and second eccentric mechanisms can be moved with a time difference to tilt and lower the cutter. And a control unit that
A blade unit is constituted by the blade and the blade holder to which the blade is fixed,
Attach the blade holder to the slide base of the linear guide mechanism provided on the punching board,
A slide mechanism for sliding the blade unit laterally with respect to the punching board via the linear motion guide mechanism is connected to the blade unit or the slide base;
The said control part is a cutting machine provided with the control structure which slides a cutter and cuts a workpiece | work by moving the said slide mechanism and sliding a cutter unit to a horizontal direction . The cutting machine according to claim 1, wherein
The control unit causes the one end side in the length direction of the blade to precede and follow the other end side of the blade with the blade edge in contact with the entire width of the work by the first and second eccentric mechanisms. A control configuration that lowers the blade edge of the cutting tool to incline and cuts the workpiece from one side, and descends so that the heights of both ends of the cutting edge coincide with each other at the final lowered position, and cuts the workpiece with the cutting edge of the blade in a horizontal posture. Cutting machine equipped. The cutting machine according to claim 1 or 2,
The cutting machine in which the blade suspension position interval of each arm in the first and second eccentric mechanisms is set to 1/2 to 1/3 with respect to the overall length of the blade. The cutting machine according to any one of claims 1 to 3,
A cutting machine in which a linear motion bearing provided with rolling elements is provided at both end sides of the punching board.

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