JP2009113163A - Cutting machine, method of grinding cutting blade of cutting machine, cutting data creating device, and method of cutting object to be cut by cutting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting machine which can shorten a cutting time without marring the sharpness of a cutting blade, to thereby improve the productivity thereof, and to provide a method of grinding the cutting blade of the cutting machine, a cutting blade grinding data creating device, and a method of cutting an object to be cut by the cutting machine. <P>SOLUTION: According to the method of grinding the cutting blade, after a continuous cutting integrated value exceeds a predetermined value from a time point at which the cutting blade 8 has been replaced and/or a time point at which the cutting blade has been ground, a virtual grinding point at which the cutting blade is ground when lifted up, is set on one component part of the object to be cut. Then if a continuous cutting quantity from the virtual grinding point to completion of the cutting of the component part is within a specified value, the cutting blade is ground by a grinding device 14 during a time from the completion of the cutting of the part to starting of cutting of another part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cutting machine, a method for polishing a cutting blade in a cutting machine, a cutting data creation device, and an improvement in a cutting method for an object to be cut in a cutting machine.

Conventionally, for the production of parts for sewing clothes, etc., a cutting machine that automatically cuts objects to be cut, such as woven fabrics and knitted fabrics stacked on a cutting bed, into multiple parts by computer control Is used.
With regard to such a cutting machine, Patent Document 1 below discloses a cutting machine including a compensation device (control device) that polishes the cutting blade at a predetermined interval in order to automatically compensate for wear of the cutting blade. Has been.

  Further, Patent Documents 2 and 3 disclose a cutting machine according to the previous proposal of the present applicant, which is provided with a specific polishing device for polishing a cutting blade in the cutting machine. In these cutting machines, For example, after cutting one part, the cutting blade is pulled out from the object to be cut, and the cutting blade is polished while moving to a subsequent part.

When the cutting blade is polished at predetermined intervals or every movement between parts, as in the cutting machines of the above-mentioned patent documents, polishing can be performed even when it is not necessary to polish. In addition, the time required for cutting becomes long and productivity is lowered, and the problem arises that the service life of the cutting blade is shortened due to repeated polishing of the cutting blade.
Japanese Patent Publication No.57-14957 Japanese Patent Laid-Open No. 7-60692 Japanese Patent Laid-Open No. 7-60693

  The present invention has been made in view of the above-described conventional problems, and is capable of reducing the cutting time without impairing the sharpness of the cutting blade, and the cutting blade capable of improving productivity, and the cutting blade in the cutting machine An object of the present invention is to provide a polishing method, a cutting blade polishing data creation device, and a cutting method of a material to be cut in a cutting machine.

In order to achieve the above object, the cutting blade polishing method in the cutting machine according to the present invention is a cutting blade that cuts an object to be cut placed on a cutting bed into a plurality of parts set in a control device. And a cutting blade polishing method in a cutting machine equipped with a polishing device for polishing the cutting blade, the predetermined continuous cutting integrated value from when the cutting blade is replaced and / or when the cutting blade is polished A virtual polishing point is set to polish the cutting blade when the cutting blade is pulled up on the workpiece after being exceeded, and the virtual polishing point is set as one part, and the one part is cut from the virtual polishing point. When the amount of continuous cutting to the end is within the specified range, or after the cutting blade is replaced and / or when the cutting blade is polished, the cutting of one part is followed by the cutting of other parts. ,other Set virtual polishing point on the part, when continuous cutting amount to the virtual polishing point from a cutting start of other parts is within provision,
After the cutting of one part, the cutting blade is pulled up on the workpiece and moved to the cutting start position of the other part, and the cutting blade is moved by the polishing device until the cutting of the other part is started. Polished,
If the amount of continuous cutting between the virtual polishing point and the end of cutting of one part where the virtual polishing point is set or the start of cutting other parts exceeds the specified level, the cutting blade is polished at the virtual polishing point. It is characterized by doing so.

The cutting machine according to the present invention includes a cutting blade that cuts the workpiece placed on the cutting bed into the shape of a plurality of parts set in the control device, and a polishing device that polishes the cutting blade.
The control device includes a storage unit that stores a shape of a plurality of parts to be cut, and a driving unit that drives the cutting blade to contact and separate from the object to be cut in accordance with the shape of the part stored in the storage unit. The cutting blade is polished when the cutting blade is pulled up from the workpiece after the predetermined continuous cutting integrated value has been exceeded from the time the cutting blade is replaced and / or the cutting blade is polished. When the virtual polishing point is set, the virtual polishing point is set to one part, and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, or the cutting blade is After the replacement and / or when the cutting blade is polished, the cutting of one part is followed by the cutting of other parts, and a virtual polishing point is set for this other part. If the amount of continuous cutting from the start of cutting other parts to the virtual polishing point is within the specified range, after the cutting of one part is completed, the cutting blade is lifted onto the workpiece and the other parts Move to the cutting start position, polish the cutting blade with a polishing device before starting cutting of other parts, until the virtual polishing point and the cutting end of one part where the virtual polishing point is set, Alternatively, a control device configured to polish the cutting blade at the virtual polishing point when the amount of continuous cutting between the start of cutting other parts to which the virtual polishing point is set exceeds a specified value is provided. It is a feature.

  The cutting data creation device according to the present invention is a cutting machine that cuts a workpiece placed on a cutting bed into a plurality of preset parts using a cutting blade that is repeatedly polished by a polishing device. A cutting data creation device that creates data, and cuts when the cutting blade is lifted onto the workpiece after exceeding the predetermined continuous cutting cumulative value from the cutting blade replacement point and / or the cutting point polishing point. A virtual polishing point setting means for setting a virtual polishing point for polishing the blade, and a time point when the virtual polishing point is set is during cutting of one part, and continuous from the virtual polishing point to the end of cutting of the one part When the cutting amount is within the specified range, or after cutting one part from the cutting point replacement point and / or the cutting point of the cutting blade, cut the other parts that follow, When a virtual polishing point is set for other parts and the continuous cutting amount from the start of cutting other parts to the virtual polishing point is within the specified range, the cutting blade is cut after the cutting of one part is completed. The cutting blade is polished by the polishing device until it is pulled up on the object and moved to the cutting start position of the subsequent other parts, and cutting of the other parts is started, and the virtual polishing point and virtual polishing point are set If the amount of continuous cutting between the end of cutting of one part that has been performed or the start of cutting of another part for which a virtual polishing point has been set exceeds the specified level, the cutting blade is polished at the virtual polishing point. Thus, there is provided a polishing point editing means for obtaining a polishing point.

The cutting method of the object to be cut in the cutting machine according to the present invention includes a cutting blade for cutting the object to be cut placed on the cutting bed into a plurality of parts set in the control device, and polishing the cutting blade A cutting method for a cut object in a cutting machine that cuts a cut object by a cutting machine equipped with a polishing device that performs a predetermined sequence from the time when the cutting blade is replaced and / or the time when the cutting blade is polished A virtual polishing point that polishes the cutting blade when the cutting blade is pulled up on the workpiece after exceeding the integrated cutting value is set, and the virtual polishing point is set as one part. When the amount of continuous cutting until the end of cutting of a part is within the specified range, or when the cutting blade is replaced and / or when the cutting blade is polished, the cutting of one part following the cutting of one part Cutting When a virtual polishing point is set for another part and the continuous cutting amount from the start of cutting other parts to the virtual polishing point is within the specified range, the cutting blade is cut after the cutting of one part is completed. The cutting blade is polished by the polishing device until it is pulled up on the object and moved to the cutting start position of the subsequent other parts, and cutting of the other parts is started, and the virtual polishing point and virtual polishing point are set When the amount of continuous cutting between the end of cutting of one part or the start of cutting of another part exceeds the specified value, the cutting blade is polished at the virtual polishing point and the substrate placed on the cutting bed is placed. It is characterized by cutting a cut material.

  According to the present invention, after a predetermined continuous cutting integrated value is exceeded, a virtual polishing point for polishing the cutting blade when the cutting blade is pulled up on the workpiece is set, and from the virtual polishing point to the end of cutting of the part If the amount of continuous cutting from the start of cutting other parts to the virtual polishing point when cutting other parts following the cutting of that one part is within the specified range After cutting one part, the cutting blade is lifted onto the object to be cut and moved to the cutting start position for the other parts that follow, and the cutting blade is polished until the other parts start cutting. If the amount of continuous cutting between the virtual polishing point and the end of cutting of one part where the virtual polishing point is set or the start of cutting other parts exceeds the specified level, the virtual polishing point Cutting blade Since it is configured to polish, within the range where the amount of continuous cutting from the virtual polishing point to the end or start position of the part is within the specified range and the sharpness of the cutting blade is not reduced, priority is given to shortening the cutting time between parts Polishing while moving, conversely, in the range where the continuous cutting amount exceeds the specified value and the cutting edge sharpness is lowered, priority is given to the cutting blade polishing, shortening the cutting time without impairing the cutting edge cutting efficiency and cutting efficiency Improvements can be made.

Thus, in the method for polishing a cutting blade in the cutting machine according to claim 1, the cutting time can be shortened and the cutting efficiency can be improved without reducing the sharpness of the cutting blade, and the durability of the cutting blade can be improved. There is an advantage that it can be extended as much as possible and economical.
The cutting machine according to claim 2 has an advantage that a cutting machine with a short cutting time and high work efficiency can be provided.
The cutting data creating apparatus according to claim 3 has an advantage that cutting data having a short cutting time and high work efficiency can be created.
Moreover, according to the cutting method of the to-be-cut object in the cutting machine of Claim 4, there exists an advantage which can shorten cutting time and can improve productivity.

  Hereinafter, preferred embodiments of a cutting machine according to the present invention will be described with reference to the drawings.

FIG. 1 is a diagram for explaining a cutting method according to an embodiment of the present invention, in which S indicates a knitted fabric or fabric (cut material) placed in a stacked shape on a cutting bed T; The shapes A, B, and C shown on the surface are the shapes of the parts input to the control device of the cutting machine, and are shown on the surface of the object to be cut S for convenience of explanation.
And this part is cut | judged to each shape shown in the figure in order of A, B, and C with a cutting blade.

The cutting machine according to the present embodiment is, for example, FIG. 1 to FIG. 7 of Japanese Patent Laid-Open No. 7-60692 which is the above-mentioned Patent Document 2, or FIG. A cutting machine having a structure shown in detail 3 is used.
That is, as shown in FIG. 2, a plurality of objects to be cut S, such as clothing, are stacked and placed on a flat cutting bed T constituted by a large number of bristle brushes 2. The cut material S is cut into the shape of each part by a cutting blade 8 attached to the cutting head 6.
The cutting head 6 is arranged on the beam 7 moving in the longitudinal direction (X-axis direction) of the cutting bed T so as to be movable in the width direction (Y-axis direction) of the cutting bed T. Although not shown in the figure, the basic configuration of the cutting blade 8, a head block that reciprocally vibrates the cutting blade 8 in the Z-axis direction perpendicular to the cutting bed T by the cutting blade vibration motor, and the head block in the Z-axis direction. Elevating means for moving up and down in the direction and control means for controlling the elevating means are provided.

The head block includes a built-in crank mechanism, and the cutting mechanism 8 reciprocally vibrates the cutting blade 8 along the Z axis, and R-axis means for angularly displacing the cutting blade 8 about the Z axis. It is provided and configured to perform a cutting operation while directing the blade edge in a pre-programmed cutting direction.
At that time, the cutting blade is lowered by the elevating means at the cutting start position of each part or at a position where the cutting direction is changed at a large angle, and the object to be cut S is pierced.
After cutting for a predetermined length, when the cutting end position or the position where the cutting direction is changed at a large angle is reached, the cutting blade is lifted by the lifting means and extracted from the workpiece S.
Further, a polishing device 14 (see FIG. 3) provided with a pair of polishing rollers sandwiching the cutting blade 8 is accommodated in the head block, and the polishing roller is driven to rotate while being in contact with the cutting blade 8. As a result, the cutting blade is polished.

FIG. 3 is a block diagram of the control device 3 of the cutting machine 1 shown in FIG. As shown in the figure, the control device 3 of the cutting machine 1 includes a storage means 13, a drive means 9, a virtual polishing point setting means 10, a control means 11 for controlling polishing points, and an input means 12. ing.
The storage unit 13 stores the shapes of a plurality of parts input from the input unit 12, and the driving unit 9 contacts and separates the cutting blade 8 from the workpiece S in accordance with the shapes of the parts stored in the storage unit 13. In addition, an instruction is given to drive cutting.

The virtual polishing point setting means 10 is calculated from the time when the cutting blade 8 is replaced or the time when the cutting blade 8 is polished, and after exceeding a predetermined continuous cutting integrated value, the cutting end position or corner of each part. A virtual polishing point for polishing the cutting blade 8 when the cutting blade 8 is pulled up on the workpiece S, such as a position where the cutting direction is changed with an angle, such as a corner or a corner, is set.
Then, the control means 11 sets the virtual polishing point to one part, and if the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, or the cutting blade 8 is replaced. From the point of time when the cutting blade 8 is polished, the cutting of one part is performed following the cutting of one part, the virtual polishing point is set for this other part, and the cutting of other parts is started When the amount of continuous cutting up to the virtual polishing point is within the specified range, after the cutting of one part is finished, the cutting blade 8 is pulled up on the workpiece and moved to the cutting start position of the subsequent other parts. The cutting blade 8 is polished by the polishing apparatus 14 until the cutting of other parts is started, and the virtual polishing point and until the end of cutting of one part where the virtual polishing point is set, or the virtual polishing poi When the continuous cutting amount between the cutting start other parts bets are set exceeds the specified controls to polish the cutting blade 8 in the virtual polishing point.

When cutting using the cutting machine as described above, the continuous cutting integrated value and the specified value are set in advance in the control device 3 of the cutting machine 1.
The continuous cutting integrated value is a guideline for reshaping and correcting the wear of the blade based on the material, thickness and the like of the workpiece S. When the cutting blade 8 is replaced and / or the cutting blade 8 is used. Is an integrated value of the amount that the cutting blade 8 cuts to a position where polishing of the cutting blade 8 will be necessary, and the cutting machine exceeds this continuous cutting integrated value. After cutting, the polishing point is set so that the cutting blade 8 is polished when the cutting blade 8 is pulled up on the workpiece.

Here, the continuous cutting integrated value specifically refers to the time when the cutting blade 8 such as the cutting distance, the cutting time or the cutting blade 8 vibration speed of the workpiece S is replaced and / or the cutting blade 8. A value that can indicate the cumulative amount of cutting from the point of time when the material is polished is used.
Further, the specified value is a value (cutting continuation distance, cutting continuation time or cutting continuation rotation speed) indicating an allowable range in which the sharpness of the trailing blade beyond the virtual polishing point can be maintained.

FIG. 4 shows a flowchart of the control device of the cutting machine according to the present embodiment.
Then, when the workpiece S shown in FIG. 1 is cut into the shapes shown in FIG. 1 in the order of parts A, B, and C, when the cutting program starts in step (S1) shown in FIG. After the shapes of the parts A, B, and C, the predetermined continuous cutting integrated value and the specified value are read in S2), the cutting blade 8 is inserted into the object to be cut from the cutting start point d of the part A in FIG. In step (S3), cutting by the cutting blade 8 is started, and the accumulation of the cutting distance from the cutting start point d, the actual cutting driving time of the cutting blade 8, or the actual number of rotations performed by the cutting blade motor is started. Is done. Hereinafter, for the sake of explanation, the cutting distance will be described as an example.

In step (S4), a virtual polishing point is set.
The virtual polishing point is a point e where the integrated value of the cutting distance from the point d exceeds the predetermined continuous cutting integrated value when the part A is cut clockwise from the cutting start point d by the broken line. After passing, it is set to a point f corresponding to the time when the cutting blade 8 is pulled up on the workpiece.
Then, the current position of the cutting blade 8 while the cutting machine is actually cutting the part A is read at any time in step (S5).

In step (S6), it is determined whether or not the cutting end position of the part A has been reached. If the cutting end position of the part A has not yet been reached, NO is determined and the process proceeds to step (S7).
In step (S7), it is determined whether or not the cutting blade 8 has reached the virtual polishing point f set in step (S4).
Until the cutting blade 8 reaches the virtual polishing point f of the part A, NO is determined in step (S7), so the process returns to step (S5), and the current position of the cutting blade 8 is read again (step (S6)). Eventually, when the cutting blade 8 reaches the virtual polishing point f of the part A, YES is determined in the step (S7), and the process proceeds to the step (S8).

In step (S8), the continuous cutting distance K from the virtual polishing point f which is the current position of the cutting blade 8 to the cutting end point d of the part A is read. In step (S9), the continuous cutting distance K is calculated. It is determined whether it is within the range of the specified value read in step (S2).
If the continuous cutting distance K is longer than the specified distance, NO is determined in step (S9), the process proceeds to step (S31), and the polishing blade 14 moves the cutting blade 8 at the virtual polishing point f that is the current position of the cutting blade 8. Polish.

On the other hand, if the continuous cutting distance K is shorter than the specified distance, the answer is YES in step (S9), and the process proceeds to step (S10), where the part A is the last of the plurality of parts of the cut object S. Judge whether it is a part to be cut.
Since the part A is not the last part of the workpiece S, the answer is NO in step (S10) and the process proceeds to step (S11). After the cutting of the part A is completed, the cutting blade 8 is pulled up on the workpiece S. The cutting blade 8 is moved to the cutting start position g of the part B, which is a subsequent part of the part A, and the cutting blade 8 is polished by the polishing apparatus 14 until the cutting of the part B is started.

When the cutting blade 8 is polished during the movement from the part A to the part B in step (S11), the process proceeds to step (S12), and the integrated value of the cutting distance is reset.
Further, when polishing is performed at the virtual polishing point f in step (S31), the process similarly proceeds to step (S12), and the integrated value of the cutting distance is reset.
Then, in step (S13), cutting by the cutting blade 8 is continued, and integration of cutting distances from the cutting resumption point f or g after polishing of the cutting blade 8 is started.

Further, in step (S14), the remaining cutting distance of the object to be cut S is compared with a predetermined continuous cutting integrated distance to determine whether or not a virtual polishing point can be set.
That is, if the remaining cutting distance after polishing f or g of the object to be cut S is shorter than the continuous cutting integrated distance set in the step (S2), it exceeds the continuous cutting integrated value and then is cut. This is because it becomes impossible to set a virtual polishing point for polishing the cutting blade 8 when the cutting blade 8 is pulled up on the cut object.
Currently, it is immediately after polishing at the position f of part A or point g of part B. Since the remaining cutting distance is longer than the continuous cutting integrated distance, the next virtual polishing point is set. Since it becomes possible, the answer is YES in step (S14) and the process proceeds to step (S15). In this step (S15), the part at which the continuous cutting distance from the cutting resumption point f or g exceeds the predetermined continuous cutting integrated value. The position j corresponding to when the cutting blade 8 is pulled up on the workpiece after exceeding the point i of C is set as a virtual polishing point for polishing the cutting blade 8.
Then, returning to step (S5), the current position where the cutting blade 8 is currently cutting is read.

In order to cut the part B following the part A, the cutting is started from the cutting start point g of the part B, the cutting is performed clockwise as indicated by the broken line, the point g is reached again, and the cutting of the part B is finished.
Then, at the point g, when the process proceeds from step (S5) to step (S6), the cutting of the part B is completed, so that YES is determined in step (S6) and the process proceeds to step (S21).

In step (S21), it is determined whether or not the part B is the last part to be cut in the object to be cut S. Since part B is not the last, NO is determined and the process proceeds to step (S22).
In step (S22), the continuous cutting distance L between the cutting start position h of the part C cut next to the part B and the virtual polishing point j set in step (S14) is read.
In step (S23), it is determined whether or not the continuous cutting distance L read in step (S22) is within the specified range set in step (S2).
If the continuous cutting distance L is longer than the standard, NO in step (S23), the process proceeds to step (S24), and after moving the cutting blade 8 to the cutting start point h of the part C to be cut following the part B, The cutting is continued, and the process further proceeds to step (S25), and the cutting blade is polished by the polishing apparatus 14 at the virtual polishing point j of the part C.
On the other hand, if the continuous cutting distance L is shorter than specified in step (S23), the result in step (S23) is YES, so the process proceeds to step (S11), and after cutting of part B, the cutting blade 8 is covered. The cutting blade 8 is polished by the polishing device 14 until it is lifted onto the cut material and moved to the cutting start position h of the subsequent part C and the cutting of the part C is started.

When the cutting blade 8 is polished during the movement from the part B to the part C in step (S11), the process proceeds to step (S12) in the same manner as described above, and the integrated value of the cutting distance is reset. In (S25), when polishing is performed at the virtual polishing point j, the process proceeds to step (S12), and the integrated value of the cutting distance is reset.
In step (S13), cutting is continued and integration is started. In step (S14), it is determined whether the next virtual polishing point can be set.
At that time, the remaining amount of cutting after the polishing position of part C is compared with the continuous cutting integrated value read in step 2, and at this time, the remaining cutting distance of part C is the continuous cutting integrated value. If it is shorter, the answer is NO in step (S14), and the process proceeds to step (S32). The cutting is continued to the cutting end point h of the entire workpiece S, and the process proceeds to step (S33). End the cutting program.

  As a result of comparing the remaining cutting amount after the polishing position of part C with the continuous cutting integrated value read in step 2 in step (S14), the remaining cutting distance of part C is the continuous cutting integrated value. If the length is longer, the next virtual polishing point is set in step (S15), cutting is continued in the same manner as described above, and the cutting blade 8 is polished during movement of the virtual polishing point or part.

If the virtual polishing point coincides with the cutting end position of the part to be cut last, the result of step (S21) in FIG. 4 is YES, the process proceeds to step (S33), and the cutting program ends.
Also, the virtual polishing point is set to the part to be cut last, and the continuous cutting amount from the virtual polishing point set to the last cut part to the end of cutting of the part to be cut last is a step. If it is within the regulation set in (S2), NO in step (S10), the process proceeds to step (S33), and the cutting program is similarly terminated.

  In the above embodiment, the setting of the polishing point of the cutting blade is performed by the control device 3 of the cutting machine 1. However, the present invention is not limited to this, and the cutting data creating device generates cutting data in which the polishing point of the cutting blade is set. May be. When the cutting data creation device and the cutting machine are connected by a LAN, the cutting data can be transmitted to the cutting machine via the LAN interface.

FIG. 5 is a diagram showing the configuration of such a cutting data creation apparatus. In the figure, reference numeral 15 denotes a cutting data creation device, which stores a CPU 16 for performing various processes, a pattern data creation command 30 for creating a pattern to be cut, a virtual polishing point setting command 23, and a polishing point editing command 24. ROM 22, a working memory that can be read and written, and a RAM 25 having a virtual polishing point storage area 26, a polishing point storage area 27, a cutting data storage area 31, and storage areas 32 and 33 for continuous cutting integrated values and specified values. The computer includes an input unit 17 such as a keyboard and mouse for inputting various instructions and data, a monitor 18, a disk drive 19, a LAN interface 20, an external storage device 21, and the like connected by a bus 29.
And RAM25 memorize | stores the data obtained by processing by CPU16 using each command provided in ROM22. Instead, it may be stored in the external storage means 21.

  When cutting data is created by the cutting data creating device 15, first, continuous cutting input by the input means 17 from the cutting blade replacement point and / or the cutting blade polishing point according to the virtual polishing point setting command 23. After exceeding the integrated value, a virtual polishing point for polishing the cutting blade when the cutting blade is pulled up on the workpiece is set, and data of the virtual polishing point is stored in the virtual polishing point storage area 26 in the RAM 26. .

  Then, when the virtual polishing point is set in one part according to the polishing point editing command 24, and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, Or, after cutting one part from the cutting blade replacement point and / or the polishing point of the cutting blade, the other subsequent parts are cut, and the virtual polishing point is set to this other part, When the amount of continuous cutting from the start of cutting a part to the virtual polishing point is within the specified range, after the cutting of one part is completed, the cutting blade is pulled up on the object to be cut to the cutting start position of other subsequent parts. The polishing point is set so that the cutting blade is polished by the polishing device before moving and starting cutting of other parts, and the virtual polishing point and virtual polishing point are set If the amount of continuous cutting between the end of cutting of one part or the start of cutting of another part for which a virtual polishing point is set exceeds the specified value, the cutting blade is polished at the virtual polishing point. The polishing point is edited and stored in the polishing point storage area 27 in the RAM 25. Finally, the determined polishing point is set in the cutting data.

In the above embodiment, the virtual polishing point is determined after the actual cutting is started. However, the cutting machine, the cutting method, and the cutting blade polishing method of the present invention are not limited thereto, and the actual cutting start is started. The virtual polishing point may be determined in advance from the integrated value of the cutting amount of the object to be cut, and the actual polishing position of the cutting blade may be determined based on the virtual polishing point.
And in the said Example, although the cutting machine of the structure which cuts a cutting blade by reciprocating up and down was demonstrated, it is not limited to it, Even if it is a cutting machine which rotates a rotary blade and cuts Good.

It is a top view of the to-be-cut object cut | judged with the cutting method which concerns on one Embodiment of this invention. 1 is an overall perspective view of a cutting machine according to an embodiment of the present invention. It is a block diagram of the control apparatus of the said cutting machine. It is a flowchart of the cutting program of the said cutting method. It is a block diagram of the cutting data creation device concerning one embodiment of the present invention.

Explanation of symbols

S Cutting object T Cutting bed 1 Cutting machine 3 Control device 8 Cutting blade 14 Polishing device 15 Cutting data creation device

Claims (4)

  A method for polishing a cutting blade in a cutting machine, comprising: a cutting blade for cutting an object to be cut placed on a cutting bed into a plurality of parts set in a control device; and a polishing device for polishing the cutting blade. In this case, it is assumed that the cutting blade is polished when the cutting blade is pulled up on the workpiece after the predetermined continuous cutting integrated value has been exceeded from the time when the cutting blade is replaced and / or when the cutting blade is polished. When a polishing point is set, the virtual polishing point is set to one part, and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, or when the cutting blade is replaced And / or cutting of one part from the time when the cutting blade is polished, then cutting other parts that follow, virtual polishing points are set on other parts, and virtual polishing points are set from the start of cutting other parts. If the amount of continuous cutting up to the point is within the specified range, after the cutting of one part is completed, the cutting blade is lifted onto the object to be cut and moved to the cutting start position of the subsequent other parts. The amount of continuous cutting between the virtual polishing point and the end of cutting of one part with the virtual polishing point set or the start of cutting of other parts is performed by polishing the cutting blade with the polishing device before starting cutting If the cutting edge exceeds the specified value, the cutting blade is polished at the virtual polishing point.   A cutting blade that cuts an object to be cut placed on the cutting bed into a plurality of parts set in the control device, and a polishing device that polishes the cutting blade. A cutting machine comprising: storage means for storing the shape of each part; and drive means for driving the cutting blade to contact with, separate from, and cut in accordance with the shape of the part stored in the storage means. A virtual polishing point for polishing the cutting blade when the cutting blade is pulled up from the object to be cut after exceeding a predetermined continuous cutting integrated value from the time of replacement and / or when the cutting blade is polished, When the virtual polishing point is set to one part and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, or when the cutting blade is replaced and / or From the time the blade is polished, the cutting of one part is followed by the cutting of other parts, and virtual polishing points are set for these other parts, and from the start of cutting other parts to the virtual polishing point If the continuous cutting amount is within the specified range, after the cutting of one part is completed, the cutting blade is lifted onto the object to be cut and moved to the cutting start position of the subsequent other parts. The cutting blade is polished with a polishing device until the start of cutting, and the virtual polishing point and one part where the virtual polishing point is set until the end of cutting, or the other part where the virtual polishing point is set A cutting machine comprising a control device configured to polish a cutting blade at the virtual polishing point when a continuous cutting amount between the start of cutting exceeds a specified value.   A cutting data creation device that creates cutting data of a cutting machine that cuts a workpiece to be cut placed on a cutting bed into a plurality of preset parts using a cutting blade that is repeatedly polished by a polishing device. Then, a virtual polishing point is set for polishing the cutting blade when the cutting blade is lifted onto the workpiece after exceeding the predetermined continuous cutting integrated value from the cutting blade replacement point and / or the cutting blade polishing point. Virtual polishing point setting means and when the virtual polishing point is set in one part and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range, or cutting Cutting one part from the blade replacement point and / or the cutting point of the cutting blade is followed by cutting other parts, and virtual polishing points are set for these other parts. In addition, when the amount of continuous cutting from the start of cutting other parts to the virtual polishing point is within the specified range, after the cutting of one part is finished, the cutting blade is lifted onto the object to be cut and other subsequent parts Between the virtual polishing point and the end of the cutting of one part where the virtual polishing point is set, by moving to the cutting start position and polishing the cutting blade with a polishing device before starting cutting of other parts Or, if the amount of continuous cutting between the start of cutting other parts with virtual polishing points set exceeds the specified level, the polishing point editing means for obtaining the polishing point so as to polish the cutting blade at the virtual polishing point A cutting data creation device characterized by comprising:   The object to be cut is cut by a cutting machine equipped with a cutting blade for cutting the object to be cut placed on the cutting bed into a plurality of parts set in the control device, and a polishing device for polishing the cutting blade. A cutting method of a cutting object in a cutting machine, wherein the cutting blade is placed on the cutting object after the predetermined continuous cutting integrated value has been exceeded from the time when the cutting blade is replaced and / or when the cutting blade is polished. When a virtual polishing point that polishes the cutting blade when it is pulled up is set, the virtual polishing point is set as one part, and the continuous cutting amount from the virtual polishing point to the end of cutting of the one part is within the specified range Or, when the cutting blade is replaced and / or when the cutting blade is polished, the cutting of one part is followed by cutting of the other parts, and virtual polishing points are set on the other parts. other When the amount of continuous cutting from the start of cutting a part to the virtual polishing point is within the specified range, after the cutting of one part is completed, the cutting blade is pulled up on the workpiece and the cutting start position of the subsequent other parts The cutting blade is polished with a polishing device before starting to cut other parts, and the virtual polishing point and one part where the virtual polishing point is set are cut or another part is started. When the amount of continuous cutting between and exceeds the specified amount, the cutting blade is polished at the virtual polishing point and the object to be cut placed on the cutting bed is cut. How to cut things.

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