JP7397756B2 - Cutting equipment and cutting program - Google Patents

Description

The present invention relates to a cutting device and a cutting program, and more particularly to a cutting device and a cutting program that continuously perform predetermined cutting processing on a roll-shaped sheet medium.

Conventionally, sheet media are formed by transporting the sheet media in a transport direction perpendicular to the direction of movement of the carriage while moving a carriage holding the cutter with the tip of the cutter in contact with or away from the sheet media. 2. Description of the Related Art A cutting device that performs cutting processing on an image is known.
The cutting device includes a "grit rolling type" in which a rolled sheet medium is held between a drive roller and a pressure roller, and the sheet medium is conveyed by the rotational movement of the drive roller to perform continuous cutting processing. Although it is not suitable for continuous cutting of roll-shaped sheet media, it exhibits high cutting pressure and can suitably cut relatively hard or relatively thick sheet media. There are two types:
Under these circumstances, because the flatbed type equipment mentioned above is relatively expensive and requires a large installation space, it is possible to cut relatively hard sheet media by devising the cutting conditions of the grit rolling type equipment. Techniques have been proposed that allow cutting even when the image is cut (see, for example, Patent Documents 1 and 2).

The cutting device described in Patent Document 1 is of a grit rolling type, and includes a cutting device for cutting a roll-shaped sheet medium, a control device for controlling the cutting speed of the cutting device, and acquiring the type of the sheet medium. The cutting speed can be changed depending on the type of the sheet medium.
With the above configuration, it is possible to suppress the occurrence of cutting defects even when the sheet medium is relatively hard.

Further, the image recording apparatus described in Patent Document 2 is similar, and includes a conveying means for conveying a roll-shaped sheet medium and a cutting means that moves in a direction crossing the conveying direction of the sheet medium and cuts the sheet medium. It is mainly composed of a measuring means for measuring the amount of cutting powder generated when cutting a sheet medium, and a control means for controlling the moving speed of the cutting means according to the amount of the cutting powder.
With the above configuration, even when different types of sheet media are used, generation of cutting powder from the sheet media can be suppressed.

Japanese Patent Application Publication No. 2007-326184 Japanese Patent Application Publication No. 2013-111702

By the way, among the various sheet media to be cut, there are sheet media such as "high-brightness reflective sheets" that not only have high hardness but also high viscosity, and the sheet media can be suitably cut. In such cases, it was strongly recommended to use a flatbed type device.
The main reason for this is that, due to the difference in performance and purpose from the flatbed type, the adhesive from the sheet media adheres to the cutter during the cutting process and gradually accumulates in the grit rolling type. It was thought that the cutting process would no longer be possible. In particular, when the distance of the cut line formed on the sheet medium becomes long, there is a possibility that problems such as uncut portions may occur. Furthermore, if the hardness of the sheet medium increases, there is a risk that the starting and ending points of the image after cutting may not match.
However, from the viewpoint of the cost and installation space mentioned above, it is possible to use grit that can be suitably cut by adjusting the cutting conditions, even for sheet media with high hardness and high viscosity, such as "high-intensity reflective sheets." A rolling type cutting device was needed.
In addition, there has been a need for a cutting device that is not limited to the grit rolling type and is capable of more suitably cutting the above-mentioned sheet media.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a cutting device and a cutting plotter that are capable of suitably cutting a viscous sheet medium. .
Another object of the present invention is to provide a grit rolling type cutting device and a cutting plotter that can suitably cut sheet media having a relatively high viscosity.

According to the cutting device of the present invention, the above problem can be solved by moving the carriage holding the cutter while the cutter is in contact with or separated from the sheet medium, and the sheet is moved in the conveying direction that intersects with the moving direction of the carriage. A cutting device that performs a cutting process by conveying a medium, the sheet attribute information acquisition unit that acquires attribute information regarding the properties of the sheet medium to be cut, and the acquired attribute information of the sheet medium indicates. The cut processing execution section includes an attribute threshold determination section that determines whether an attribute value is greater than or equal to a predetermined threshold, and a cut processing execution section that executes a cut processing based on the determination result. When attribute information regarding the viscosity of the sheet medium to be processed is acquired and it is determined that the viscosity of the sheet medium is equal to or higher than a predetermined viscosity threshold, a distance of a cut line to be formed on the sheet medium is preset. The problem is solved by executing the cutting process such that each time the cutter exceeds the set distance, the cutter is moved in a direction away from the sheet medium, and then moved back in a direction in which it comes into contact with the sheet medium. be done.
With the above configuration, it is possible to realize a cutting device that can suitably cut a viscous sheet medium.
Specifically, when the sheet medium to be cut has a predetermined viscosity, the cut processing execution unit once separates the cutter from the sheet medium every time the distance of the cut line formed on the sheet medium exceeds a set distance. The cutting process is performed by moving the sheet medium in the direction of contacting the sheet medium, and then moving it back in the direction of contacting the sheet medium. Therefore, it is possible to suppress the adhesive of the sheet medium from being deposited on the cutter during the cutting process, and the cutter can continue the suitable cutting process. That is, the adhesive adhering to the cutter can be removed with the above operation of the cutter (for example, by bringing the adhesive adhering to the cutter into contact with (rubbing) the surface layer (image layer) of the sheet medium). ).

At this time, the cutting device is a cutting device that continuously performs cutting processing by sandwiching the roll-shaped sheet medium between a drive roller and a pressure roller, and conveying the sheet medium by the rotational operation of the drive roller. The cut processing execution unit acquires attribute information regarding the viscosity of the sheet medium to be cut, and determines that the viscosity of the sheet medium is equal to or higher than a second viscosity threshold that is larger than the viscosity threshold. If determined, each time the distance of the cut line exceeds a second set distance shorter than the set distance, the cutter is moved in a direction to once move away from the sheet medium, and then comes into contact with the sheet medium. It is preferable to perform the cutting process so as to move the object in the direction in which the object is moved and then return it.
With the above configuration, it is possible to realize a grit rolling type cutting device that can suitably cut a viscous sheet medium. The effects of the invention are particularly effective in the technical field of cutting plotters.
Further, with the above configuration, even a sheet medium having a relatively high viscosity can be suitably cut by changing the cutting conditions according to the distance of the cut line.

At this time, the cut processing execution unit acquires attribute information regarding the viscosity of the sheet medium to be cut, and if it is determined that the viscosity of the sheet medium is less than the viscosity threshold, the cut processing execution unit Regardless of the distance of the line, it is preferable to perform the cutting process so that the cutter is not moved in a direction that brings the cutter into contact with or away from the sheet medium until the cutting process is completed.
With the above configuration, when cutting a sheet medium that has no (almost no) viscosity, the cut processing time can be shortened as much as possible by continuing the cutting operation of the cutter. That is, the cutting process can be suitably performed depending on the type of sheet medium.

At this time, the cutting condition setting section further includes a cutting condition setting section that sets parameters regarding cutting processing conditions based on the determination result, and the cutting processing execution section acquires attribute information regarding the hardness of the sheet medium to be cut. However, if it is determined that the hardness of the sheet medium is equal to or higher than a predetermined hardness threshold, the moving speed of the cutter, which is a cutting processing condition, is set to be slower than a preset speed, and the cutting is performed. It is better to carry out the process.
Further, when the cut processing execution unit obtains attribute information regarding the thickness of the sheet medium to be cut processing, and determines that the thickness of the sheet medium is equal to or greater than a predetermined thickness threshold, It is preferable to execute the cutting process by setting the pressure of the cutter against the sheet medium, which is a cutting process condition, to be higher than a preset pressure.
With the above configuration, even sheet media with high hardness, thickness, and high viscosity, such as "high-intensity reflective sheets," can be suitably cut by devising the cutting conditions as described above. can.

At this time, each time the distance of the cut line exceeds the set distance, the cutter is moved in a direction away from the sheet medium without moving the cutter away from the sheet medium, and then moves the cutter away from the sheet medium. It is preferable to perform the cutting process by moving it in the direction of contact and returning it.
With the above configuration, when cutting a viscous sheet medium, it is possible to improve the finish of the cutting process and to shorten the cutting process time as much as possible. That is, the cutting operation of the cutter can be continued as long as possible.

Further, the above-mentioned problem is solved by carrying out the cutting process by conveying the sheet medium in a conveyance direction that intersects with the moving direction of the carriage while moving a carriage holding the cutter while the cutter is in contact with or separated from the sheet medium. A computer serving as a cutting device performs sheet attribute information acquisition processing to acquire attribute information regarding the properties of the sheet medium to be cut, and an attribute value indicated by the acquired attribute information of the sheet medium is equal to or higher than a predetermined threshold. an attribute threshold value determination process for determining whether or not the sheet is a cut process; and a cut process execution process for executing a cut process based on the determination result; When attribute information regarding the viscosity of the medium is acquired and it is determined that the viscosity of the sheet medium is equal to or higher than a predetermined viscosity threshold, the cut line formed on the sheet medium is cut every time the distance of the cut line exceeds a preset distance. The problem can also be solved by a cutting program characterized in that the cutting process is executed by moving the cutter in a direction away from the sheet medium and then moving it back in a direction in which it comes into contact with the sheet medium. Ru.

According to the cutting device and cutting program of the present invention, a sheet medium having viscosity can be suitably cut.
Further, even with a grit rolling type cutting device, sheet media having a relatively high viscosity can be suitably cut. For example, even a sheet medium having high hardness, thickness, and high viscosity, such as a "high-brightness reflective sheet", can be suitably cut.

FIG. 1 is an external perspective view showing the cutting device of this embodiment. FIG. 3 is a side view showing the hardware configuration of the cutting device. FIG. 3 is an enlarged view showing a sheet conveyance mechanism, a carriage movement mechanism, and a cutter movement mechanism. FIG. 2 is a block diagram showing the hardware and software configurations of the cutting device. FIG. 3 is a diagram illustrating an example of cut condition data for each sheet medium. It is a figure showing an example of cutting data. FIG. 3 is a diagram illustrating an example of processing by a cut processing execution unit. It is a flow diagram showing an example of processing of a cutting program.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 8.
This embodiment is a cutting process in which a cutter is brought into contact with or separated from a sheet medium, and a carriage holding a cutter is moved while the sheet medium is conveyed in a conveyance direction that intersects with the moving direction of the carriage. The apparatus includes a sheet attribute information acquisition unit that acquires attribute information regarding the properties of a sheet medium to be cut, and a sheet attribute information acquisition unit that determines whether an attribute value indicated by the acquired attribute information of the sheet medium is greater than or equal to a predetermined threshold value. It has an attribute threshold value determination unit that makes a determination, and a cut process execution unit that executes a cut process based on the determination result. If the viscosity of the sheet medium is determined to be equal to or higher than a predetermined viscosity threshold, the cutter is removed from the sheet medium once every time the distance of the cut line to be formed on the sheet medium exceeds a preset distance. This invention relates to an invention whose main feature is to perform a cutting process by moving the sheet medium in the direction of separation and then moving it back in the direction of contacting the sheet medium.
Note that when viewed from the carriage that holds the cutter, the upstream side in the conveyance direction (sheet conveyance direction) means the side on which the image before cutting is placed on the sheet medium, and the downstream side in the conveyance direction , means the side on which the image after cutting processing is placed.

As shown in FIGS. 1 to 3, the cutting device 1 of this embodiment is a cutting plotter that receives user operation input and successively cuts a plurality of images 2a formed on a roll-shaped sheet medium 2. The sheet medium 2 is placed on a conveyance table, and a predetermined cut line is formed along the outline of the image 2a formed on the sheet medium 2.

As shown in FIG. 1, the sheet medium 2 is a roll-shaped sheet of paper, synthetic paper, paper pattern, plastic film, etc., on which an image 2a is printed in advance.
To be more specific, the sheet medium 2 has a plurality of images 2a formed so as to be lined up in the longitudinal direction thereof. Note that the sheet medium 2 may have a code mark or a register mark at a predetermined position for each image 2a. The code mark is a mark for optically reading the image information of the image 2a, and the register mark is a mark for aligning the cut line of the image 2a.
The sheet medium 2 is classified into multiple types based on the mechanical properties of the sheet medium. Details of the types of sheet media 2 will be described later.

<Hardware configuration of cutting device 1>
As shown in FIGS. 1 to 3, the cutting device 1 includes a user input mechanism 10 for receiving user operation input, a display mechanism 20 for displaying various setting items and messages, and a sheet medium 2. A sheet conveyance mechanism 30 that conveys in the conveyance direction The cutting device 1 mainly includes a controller 60 that is provided inside the cutting device 1 and executes various calculations and controls.

The user input mechanism 10, as shown in FIG. Input by the user is accepted by operating an operation button provided at the upper end of the cutting device 1.
The display mechanism 20 displays, on a display screen provided at the upper end of the cutting device 1, the contents of various settings made by the user, error messages when an abnormality occurs, and the like.

As shown in FIGS. 1 to 3, the sheet conveyance mechanism 30 includes a conveyance table 31 for horizontally conveying a roll-shaped sheet medium 2, and a conveyance table 31 capable of conveying the sheet medium 2 placed on the conveyance table 31. a pressure roller 33 mounted at a position facing the drive roller 32 in the vertical direction and sandwiching the sheet medium 2 between the drive roller 32; The stock roller 34 is located at the most upstream side and is used to set up the rolled sheet medium 2 before being cut. It is mainly composed of a winding roller 35 for winding up the sheet medium 2 that has been rolled up.

The conveyance table 31 is a plate-like member for supporting the sheet medium 2 from below when conveying the sheet medium 2 and performing cutting processing.
The drive roller 32 is a roller that is driven by the rotation of a drive motor (not shown) and is rotatable around a rotating shaft 32a that extends perpendicularly to the transport direction It is arranged on a conveyance table 31 located on the downstream side of X.
The pressure roller 33 is a roller that can rotate around a rotating shaft 33a, and is configured to be able to sandwich the sheet medium 2 with the drive roller 32, with a predetermined interval in the moving direction Y of the carriage 40. A plurality of them are arranged, and they are arranged at least at positions corresponding to both ends of the sheet medium 2 in the sheet width direction.
Note that the pressure roller 33 can adjust the contact pressure against the sheet medium 2 by adjusting the spring pressure of the compression spring 33b shown in FIG. Thus, the sheet medium 2 can be transported.

In the above, for example, when the sheet medium 2 is "medium A" shown in FIG. It is preferable to adjust the pressure roller 33 to a relatively high contact pressure.
Further, for example, when the sheet medium 2 is "medium A", the pressure roller 33 is moved approximately 20 mm from both ends of the sheet medium 2 in the sheet width direction so that the sheet medium 2 can be satisfactorily held. It is preferable that it is arranged further inside.

As shown in FIGS. 1 to 3, the carriage 40 is a moving body that moves in a direction crossing the transport direction They are disposed at opposite positions, and are disposed on the upstream side of the drive roller 32 and the pressure roller 33 in the transport direction X.
Specifically, the carriage 40 includes a cutter 41 that can cut the sheet medium 2, a cutter holder 42 that can move in the vertical direction Z with respect to the carriage body while holding the cutter 41, and a cutter holder 42 that is attached inside the carriage body. , an actuator 43 (cutter moving mechanism) for moving the cutter holder 42 up and down in the vertical direction Z.
The carriage 40 is equipped with a detection sensor that is attached to the lower end of the cutter holder 42 and that optically detects the position of the code mark and register mark formed at a predetermined position on the sheet medium 2 for each image 2a, and It may also include a reading sensor that optically detects stored image information.

As shown in FIG. 3, the cutter 41 is a vertically elongated bar-shaped cutting pen, and the tip of the cutter 41 is configured to be able to contact the sheet medium 2 in the vertical direction.
The cutter holder 42 is comprised of a cylindrical plunger that removably holds the cutter 41 in the vertical direction. More specifically, the cutter holder 42 holds the cutter 41 rotatably around a rotating shaft (not shown) that extends in the vertical direction. The structure is as follows.
The cutter 41 is an eccentric cutting pen whose cutting edge is held at a predetermined distance from the rotation axis. When forming a predetermined cut line on the sheet medium 2, the cutting edge of the cutter 41 is configured to rotate so as to follow the direction of least resistance to the sheet medium 2, that is, the cutting direction.

In the above configuration, the cutter holder 42 is connected to the actuator 43 and can move up and down in the vertical direction Z together with the cutter 41 by driving the actuator 43. 41 can be brought into contact or separated by applying pressure.
In other words, the cutter holder 42 and the actuator 43 correspond to a "cutter moving mechanism" that moves the cutter 41 in a direction that brings the cutter 41 into contact with or away from the sheet medium 2.
The cutter 41 moves a portion of the cutter holder 42 in the vertical direction Z, moves the carriage 40 in the moving direction Y, and transports the sheet medium 2 in the transport direction can be moved in three dimensions.

The carriage moving mechanism 50 has a mechanism for moving the carriage 40 along the width direction of the cutting device 1, as shown in FIGS. a slider 52 that is attached to be slidably movable relative to the slide rail 51 and holds the carriage 40; and a slider 52 (not shown) for driving the slider 52 along the slide rail 51. It mainly consists of a drive motor.
A pair of pressure rollers 33 are attached to both ends of the slide rail 51 in the longitudinal direction, and the slider 52 is placed between the pair of pressure rollers 33 . Therefore, the slider 52 holding the carriage 40 is configured to be able to slide between the pair of pressure rollers 33.

The controller 60 mainly includes a CPU as a data arithmetic/control processing device, ROM, RAM, and HDD as storage devices, and a communication interface for transmitting and receiving information data through a home network or the Internet. Yes (it does not have to be equipped with an HDD).
Note that the cutting device 1 may further include an external storage device such as a USB memory or an external hard disk.
As shown in FIG. 4, these ROM, HDD, and external storage devices store cutting programs in addition to the main program that performs the functions necessary for the computer, and these programs are executed by the CPU. , the functions of the cutting device 1 will be exhibited.

Specifically, the controller 60 receives signals from the user input mechanism 10 and various sensors, and sends control signals to the sheet conveyance mechanism 30, actuator 43 (cutter movement mechanism), and carriage movement mechanism 50, respectively. , the image formed on the sheet medium 2 is cut. Furthermore, by transmitting a control signal to the display mechanism 20, the contents of various settings, error messages, etc. are displayed on the display screen.
With the above configuration, in the cutting device 1, the sheet conveyance mechanism 30 moves the sheet medium 2 in the conveyance direction X, and the carriage moving mechanism 50 moves the carriage 40 in the movement direction Y, so that the cutter 41 2 in the transport direction X and the movement direction Y to form a predetermined cut line.

<Software configuration of cutting device 1>
As shown in FIG. 4, the cutting device 1 includes a storage section 61 that stores "cutting condition data for each sheet" and "cutting data" as well as various programs and data, and a cutting device 61 for storing various programs and data. a sheet selection reception unit 62 that accepts user selection regarding the type of sheet medium to be used; a sheet attribute information acquisition unit 63 that acquires attribute information regarding the properties of the sheet medium; and an attribute value indicated by the acquired attribute information of the sheet medium. an attribute threshold determination unit 64 that determines whether or not is greater than or equal to a predetermined threshold; a cut condition setting unit 65 that sets parameters related to cut processing conditions based on the determined determination results; The main component is a cut processing execution unit 66 that executes a predetermined cut processing.
These are composed of a CPU, ROM, RAM, HDD, communication interface, various programs, and the like.

As shown in FIG. 5, the "cutting condition data by sheet" stored in the storage unit 61 indicates the correspondence between the type of sheet medium, attribute information regarding the properties of the sheet medium (sheet attribute information), and cutting processing conditions. This table data is centrally managed in the storage unit 61.
By referring to the data, it is possible to utilize a function of setting suitable cutting processing conditions corresponding to the type of sheet medium (attribute information of the sheet medium).

Specifically, the cutting condition data for each sheet includes sheet attribute information such as "viscosity,""hardness," and "thickness,""vertical cutter movement,""cuttingspeed," and "cutting pressure" for each type of sheet medium. ” and “cutting acceleration” are respectively assigned.
A detailed explanation will be given below based on FIG. 5.

Regarding the type of sheet medium, "medium A" is, for example, a high-intensity reflective sheet, and corresponds to a sheet medium that has relatively high "viscosity", high "hardness", and thick "thickness".
"Medium B" is, for example, a thin high-intensity reflective sheet or a polyvinyl chloride sheet, and corresponds to a sheet medium that has relatively high "viscosity", high "hardness", and thin "thickness".
In addition, "medium C" is, for example, a masking sheet used for sandblasting or painting, "medium D" is, for example, a printer sticker or tack paper (sticker sheet), and "medium E" is, for example, a masking sheet used for sandblasting or painting. For example, it is a PVC board (a board made of polyvinyl chloride).

Regarding sheet attribute information, "no viscosity" means that the viscosity of the sheet medium is lower than the viscosity of a general cutting sheet (sticker sheet) (almost has no viscosity) and is below a predetermined viscosity threshold. It means something.
"Low viscosity" means that the viscosity of the sheet medium is equal to the viscosity of a general cutting sheet, is equal to or higher than the above viscosity threshold, and is at a predetermined second viscosity threshold that is larger than the viscosity threshold. means less than
"High viscosity" means that the viscosity of the sheet medium is higher than the viscosity of a general cutting sheet and is equal to or higher than the second viscosity threshold.

"Soft hardness" means that the hardness of the sheet medium is equivalent to the hardness of a typical cutting sheet and less than a predetermined hardness threshold.
"Hardness is hard" means that the hardness of the sheet medium is harder than that of a general cutting sheet and is equal to or higher than the above hardness threshold.

"Thin thickness" means that the thickness of the sheet medium is comparable to the thickness of a typical cutting sheet and less than a predetermined thickness threshold.
"Thick" means that the thickness of the sheet medium is harder than the thickness of a typical cutting sheet and is equal to or greater than the above thickness threshold.

Regarding the cutting processing conditions, "vertical movement of the cutter" means that the cutter is moved in the vertical direction Z. Specifically, each time the distance of the cut line to be formed on the sheet medium exceeds a preset distance, the cutter is first moved in a direction away from the sheet medium, and then moved in a direction in which it comes into contact with the sheet medium. It means the action of returning again.
For example, "cutter vertical movement is 0.01 mm/400 mm" means that every time the distance of the cut line exceeds the set distance of 400 mm, the cutter is moved 0.01 mm in the direction away from the sheet medium, and then moved back to the sheet medium. This means performing an operation of moving 0.01 mm in the direction of contact and returning again.
In the case of "the vertical movement of the cutter is 0.01 mm/200 mm", the cutter is moved vertically by 0.01 mm every time the distance of the cut line exceeds the second set distance of 200 mm, which is shorter than the set distance.

"Cut speed" refers to the moving speed of the cutter, "cut pressure" refers to the pressure of the cutter on the sheet medium, and "cut acceleration" refers to the moving acceleration of the cutter.

Looking at this example in FIG. 5, "medium A" is a sheet medium with high "viscosity", high "hardness", and thick "thickness" in the sheet attribute information, and "medium A" in the cutting processing conditions. "Cutter vertical movement" is set to 0.01 mm/200 mm, "cut speed" is set to 15 mm/s, "cut pressure" is set to 35 gf, and "cut acceleration" is set to 2 mm/s ² .
On the other hand, "medium D" is a sheet medium that has low "viscosity", soft "hardness", and thin "thickness" in sheet attribute information, and has a "cutter vertical movement" of 0. 01 mm/400 mm, "cut speed" is set to 45 mm/s, "cut pressure" is set to 20 gf, and "cut acceleration" is set to 4 mm/s ² .

To explain the above settings, since the medium A has a higher "viscosity" than the medium D, the "cutter vertical movement" is set to 0.01 mm/200 mm.
That is, when performing cutting processing on medium A, the cutter is moved 0.01 mm in the vertical direction Z every time the distance of the cut line exceeds the second set distance "200 mm" which is shorter than the set distance "400 mm". It's this year.
With the above settings, it is possible to suppress the adhesive of the sheet medium from being deposited on the cutter during the cutting process, and the cutter can continue the suitable cutting process. That is, the adhesive adhering to the cutter can be removed as the cutter moves up and down.

Further, since the medium A has a harder “hardness” than the medium D, the “cutting speed” and the “cutting acceleration” are set to be slower than the medium D. In other words, the speed and acceleration are set slower than the speed and acceleration set for the medium D.
Furthermore, since the medium A is thicker than the medium D, the cutting pressure is set higher than that of the medium D. In other words, the pressure is set higher than the pressure set for medium D.
With the above settings, even sheet media with high hardness, thickness, and high viscosity, such as "medium A (high brightness reflective sheet)", can be suitably processed by devising the cutting processing conditions as described above. Can be cut.

In addition, when comparing medium A and medium C, medium A is harder than medium C only in "hardness", and in that case, "cutting speed" and "cutting acceleration" are set slower than medium C. Also, it can be seen that the "cutting pressure" is set high.
Also, when comparing medium A and medium B, medium A is thicker than medium B, and in that case, the "cutting speed" and "cutting acceleration" are set slower than medium B. Also, it can be seen that the "cutting pressure" is set high.
By devising the cutting processing conditions as described above, the cutting processing can be performed more suitably.

As shown in FIG. 6, "cutting data" is data created based on user operations to form a predetermined cut line on a sheet medium, and is composed of a series of command strings. , are centrally managed in the storage unit 61.
By referring to the data, it is possible to utilize the function of forming a predetermined cut line along the outline of an image formed on a sheet medium.

Looking at the "cutting data" shown in FIG. 6, it can be seen that the data is for forming cut lines of the figure ABCD (1000 mm x 500 mm) and the figure EFGH (20 mm x 20 mm) on the sheet medium.
When forming a cut line from the data, first move the cutter from the coordinate origin (0, 0) to point A (10, 10), which is the cut start position, with the cutter separated from the sheet medium. . After reaching point A, the cutter is brought into pressure contact with the sheet medium to form a cut line of line segment AB from point A to point B (10, 1010).
After reaching point B, the cutter is moved toward point C (510, 1010) while being in pressure contact with the sheet medium to form a cut line of line segment BC.
By similarly forming the cut lines of line segment CD and line segment DA, the cut line of figure ABCD can be formed.
Note that among the above cutlines, the cutlines of line segments AB, BC, CD, and DA each serve as a "unit cutline".
"Unit cutline" means an individual cutline (line segments AB, BC, CD, DA) among a plurality of continuous cutlines (cutlines of figure ABCD). The unit cut line may be a curved line in addition to a straight line.

Subsequently, the cutter is moved away from the sheet medium to a point above point E (20, 20), which is the second cutting start position. After reaching point E, the cutter is brought into pressure contact with the sheet medium to form a cut line of line segment EF from point E to point F (20, 40).
Similarly, by forming the cut lines of line segment FG, line segment GH, and line segment HE, the cut line of figure EFGH can be formed.
Note that among the above cutlines, the cutlines of each of the line segments EF, FG, GH, and HE serve as "unit cutlines."

The sheet selection accepting unit 62 accepts a user's selection regarding the type of sheet medium to be cut.
The sheet attribute information acquisition unit 63 acquires attribute information regarding the properties of the sheet medium.
To be more specific, the sheet attribute information acquisition unit 63 refers to the "cutting condition data by sheet" shown in FIG. 5 and obtains the "viscosity", "viscosity", Acquire attribute information regarding "hardness" and "thickness".
Specifically, when "medium A" is selected based on user operation, attribute information regarding "viscosity", "hardness", and "thickness" of medium A is acquired.

The attribute threshold determination unit 64 determines whether the attribute value indicated by the acquired attribute information of the sheet medium is equal to or greater than a predetermined threshold.
To be more specific, the attribute threshold determination unit 64 refers to the "sheet-specific cutting condition data" shown in FIG. It is also determined whether the "hardness" of the sheet medium is equal to or greater than a predetermined hardness threshold, and further it is determined whether the "thickness" of the sheet medium is equal to or greater than a predetermined thickness threshold. Determine.
Specifically, when the attribute information of "medium A" is acquired, "viscosity" is equal to or higher than the above-mentioned second viscosity threshold (viscosity is high), and "hardness" is equal to or higher than the above-mentioned hardness threshold. (hardness is hard) and the "thickness" is equal to or greater than the above-mentioned thickness threshold value (thickness is thick).

The cut condition setting section 65 sets parameters related to cut processing conditions based on the above-mentioned determination result.
To be more specific, the cutting condition setting unit 65 refers to the "cutting condition data for each sheet" shown in FIG. Set "acceleration".
Specifically, if the judgment result is "high viscosity", "hardness", or "thickness", the "cutter vertical movement" is set to 0.01mm/200mm, and the "cutting speed" is set to 0.01mm/200mm. is set to 15 mm/s, "cut pressure" is set to 35 gf, and "cut acceleration" is set to 2 mm/s ² .

The cut process execution unit 66 executes a predetermined cut process based on set cut process conditions.
Specifically, the cut processing execution unit 66 forms a predetermined cut line on the sheet medium by referring to the "cutting data" while following the set cut processing conditions.
Specifically, when the "medium A" shown in FIG. 5 is selected by the user's operation and the cut line is formed based on the "cutting data" shown in FIG. 6, the process is as follows.
As shown in FIG. 7, the viscous sheet medium (medium A) includes a sheet surface layer on which a predetermined image is formed, a sheet adhesive layer made of an adhesive, a sheet release layer made of release paper, It is mainly composed of.

If the cut processing execution unit 66 determines that the "viscosity" of the sheet medium is equal to or higher than the second viscosity threshold (high viscosity), the cut processing execution unit 66 cuts the cutter every time the distance of the cut line exceeds the second set distance of 200 mm. The cutting process is performed by first moving 0.01 mm in a direction away from the sheet medium, then moving it in a direction bringing it into contact with the sheet medium, and then returning it again.
More specifically, as shown in FIG. 7, every time the distance of the above-mentioned "unit cut line" exceeds the second set distance of 200 mm, the cutter is moved away from the sheet medium by 0.01 mm so as not to move away from the sheet medium. After being moved, the cutting process is performed by moving it in the direction of contacting the sheet medium and returning it again.
Looking at the cutting data in Figure 6, line segments AB, BC, CD, and DA corresponding to the "unit cut line" each exceed the second setting distance of 200 mm, so the cutter moves up and down every time the second setting distance exceeds 200 mm. Execute the cutting process while performing the operation.
On the other hand, the line segments EF, FG, GH, and HE corresponding to the "unit cut line" each do not exceed the second set distance of 200 mm, so the cutting process is executed without vertical movement of the cutter.

Looking at the cutting process in FIG. 7, it can be seen that when the cutter is forming a cut line, the sheet surface layer and the sheet adhesive layer of the sheet medium are being cut.
It can be seen that when the cutter is once moved 0.01 mm in the direction away from the sheet medium, the tip of the cutter is located on the sheet surface layer.
With the above configuration, it is possible to suppress the adhesive of the sheet medium from being deposited on the cutter during the cutting process. That is, the adhesive adhering to the cutter can be removed as the cutter moves as described above. Specifically, the adhesive attached to the cutter can be removed by contacting (rubbing) the surface layer of the sheet medium.

Further, when the cut processing execution unit 66 determines that the "hardness" of the sheet medium is equal to or higher than a predetermined hardness threshold (hardness is hard), the cut processing execution unit 66 sets the cutter moving speed to 15 mm/S. (lower the cutting speed) and set the moving acceleration of the cutter to 2 mm/s ² (lower the cutting acceleration) to execute the cutting process.
Further, if the cut processing execution unit 66 determines that the "thickness" of the sheet medium is equal to or greater than a predetermined thickness threshold (thickness is thick), the cut processing execution unit 66 sets the pressure of the cutter against the sheet medium to 35 gf. (increase the cutting pressure) and execute the cutting process.

Note that when the cut processing execution unit 66 determines that the "viscosity" of the sheet medium is equal to or higher than the viscosity threshold value and less than the second viscosity threshold value (the viscosity is low), the distance of the cut line is set to a set distance of 400 mm. The cutting process is performed by moving the cutter 0.01 mm in a direction away from the sheet medium, then moving it in a direction to bring it into contact with the sheet medium, and then returning it again every time the cutter exceeds .
In addition, if the cut processing execution unit 66 determines that the "viscosity" of the sheet medium is less than the viscosity threshold (no viscosity), the cut processing execution unit 66 moves the cutter to the sheet medium until the cut processing is completed, regardless of the distance of the cut line. Execute the cutting process while being pressed against.

With the above configuration, even sheet media with high hardness, thickness, and high viscosity, such as "high-intensity reflective sheets," can be suitably cut by devising the cutting conditions as described above. can.
Furthermore, when cutting a sheet medium that does not have viscosity, the cutting time can be made as short as possible by continuing the cutting operation of the cutter. That is, the cutting process can be suitably performed depending on the type of sheet medium.

<Cutting program>
Next, the processing of the cutting program executed by the cutting device 1 will be explained based on FIG. 8.
The above program according to the present embodiment includes the above-described sheet selection reception section 62, sheet attribute information acquisition section 63, attribute threshold value determination section 64, as functional components of the cutting device 1 including the storage section 61. This is a utility program that integrates various programs to implement the cutting condition setting section 65 and the cutting processing execution section 66, and the CPU of the cutting device 1 executes this cutting program.
The above program is executed upon receiving an operation instruction from the user.

The cutting process shown in FIG. 8 begins with step S1 in which the sheet selection reception unit 62 receives a user's selection of a sheet medium to be cut.
Specifically, if the sheet medium is a "high-intensity reflective sheet," the user's selection of "medium A" is accepted.

Next, in step S2, the sheet attribute information acquisition unit 63 refers to the "sheet-specific cutting condition data" shown in FIG. ” to obtain attribute information.
Specifically, when "medium A" is selected, attribute information regarding "viscosity", "hardness", and "thickness" of medium A is acquired.

Next, in step S3, the attribute threshold value determining unit 64 determines whether the attribute value indicated by the acquired attribute information of the sheet medium is equal to or greater than a predetermined threshold value.
Specifically, it is determined whether the "viscosity" of the obtained sheet medium is equal to or greater than a predetermined viscosity threshold.
When the "viscosity" of the sheet medium is equal to or higher than the viscosity threshold (step S3: Yes), the process proceeds to step S4. On the other hand, when the "viscosity" of the sheet medium is less than the viscosity threshold (step S3: No), the process proceeds to step S7.

Next, in step S4, the attribute threshold determination unit 64 further determines whether the "viscosity" of the sheet medium is equal to or higher than a second viscosity threshold, which is larger than the viscosity threshold.
When the "viscosity" of the sheet medium is equal to or higher than the second viscosity threshold (step S4: Yes), the process proceeds to step S5. On the other hand, when the "viscosity" of the sheet medium is less than the second viscosity threshold (step S4: No), the process proceeds to step S6.
Note that the attribute threshold determination unit 64 also determines whether the "hardness" and "thickness" of the sheet medium are equal to or greater than predetermined threshold values.
Specifically, when "medium A" in FIG. The determination result is that the "thickness" is greater than or equal to the thickness threshold (thickness is thick). That is, the process advances to step S5.
When "medium D" is selected, a determination is made that the "viscosity" is greater than or equal to the viscosity threshold and less than the second viscosity threshold (the viscosity is low), and the process proceeds to step S6.
When "medium E" is selected, a determination is made that "viscosity" is less than the viscosity threshold (no viscosity), and the process proceeds to step S7.

Next, in step S5, the cutting condition setting unit 65 sets parameters regarding cutting processing conditions based on the above determination result, and the process proceeds to step S8.
Specifically, "cutter vertical movement" is set to 0.01 mm/200 mm. That is, each time the distance of the cut line (unit cut line) exceeds the second set distance of 200 mm, the cutter is moved 0.01 mm in a direction away from the sheet medium, and then moved in a direction in which it comes into contact with the sheet medium. Set it back up again.
Note that the cut condition setting unit 65 also sets cut processing conditions for "cut speed", "cut pressure", and "cut acceleration".

In step S6, the cutting condition setting unit 65 sets the "cutter vertical movement" to 0.01 mm/400 mm based on the above determination result, and proceeds to step S8.
Furthermore, in step S7, the cutting condition setting unit 65 sets "cutter vertical movement" to none based on the above determination result, and the process proceeds to step S8.

Next, in step S8, the cutting process execution unit 66 acquires the "cutting data" and executes a predetermined cutting process on the sheet medium according to the respectively set cutting process conditions.
Specifically, when "medium A" in FIG. 5 is selected, the cut process is performed according to the cut process conditions set in step S5.
Then, in step S9, the cut processing execution unit 66 determines whether the cut processing is completed. If the cutting process is completed (step S9: Yes), the process of FIG. 8 is ended. On the other hand, if the cutting process has not been completed and unprocessed cut lines remain, the process returns to step S8.

According to the processing flow of the cutting program described above, a sheet medium having viscosity can be suitably cut.
Further, even with a grit rolling type cutting device, sheet media having a relatively high viscosity can be suitably cut. For example, even a sheet medium having high hardness, thickness, and high viscosity, such as a "high-brightness reflective sheet", can be suitably cut.

<Other embodiments>
In the above embodiment, as shown in FIG. 1, the cutting device 1 is a grit rolling type plotter, but the cutting device 1 is not particularly limited and can be modified.
For example, the cutting device 1 may be a flatbed type plotter. Alternatively, the present invention is not limited to these, and can be widely applied to cutting devices capable of cutting sheet media.

In the above embodiment, as shown in FIG. 5, the "cutting vertical movement" of the medium A is set to 0.01 mm/200 mm, but it can be changed without particular limitation.
For example, it can be set in the range of 0.005 to 0.02 mm/200 to 300 mm.
Specifically, if it is set to 0.02 mm/200 mm, the cutting processing time becomes somewhat longer, but it is possible to further suppress the adhesive of the sheet medium from being deposited on the cutter during the cutting processing.
When set to 0.005 mm/300 mm, the adhesive of the sheet medium tends to accumulate on the cutter during the cutting process, but the cutting process time can be shortened.

Similarly, the "cutting vertical movement" of the medium D is set to 0.01 mm/400 mm, but it can be changed without particular limitation.
For example, it can be set in the range of 0.005 to 0.02 mm/400 to 800 mm. Alternatively, it is also possible to set the "cut up and down motion" to none.

In the above embodiment, as shown in FIG. 5, the "cutting speed" of the medium A is set to 15 mm/s, but it can be set in the range of 15 to 20 mm/s.
Further, the "cutting speed" of the medium D is set to 45 mm/s, but it can be set within the range of 45 to 60 mm/s.
The "cutting speed" of media B, C, and E can also be set within any range.

In the above embodiment, as shown in FIG. 5, the "cut pressure" of the medium A is set to 35 gf, but it can be set in the range of 35 to 45 gf.
Further, although the "cutting pressure" of the medium D is set at 20 gf, it can be set within the range of 10 to 20 gf.
The "cutting pressure" of media B, C, and E can also be set within any range.

In the above embodiment, as shown in FIG. 5, the "cutting acceleration" of the medium A is set to 2 mm/s ² , but it can be set in the range of 1 to 2 mm/s ² .
Furthermore, although the "cutting acceleration" of the medium D is set to 4 mm/s ² , it can be set within the range of 4 to 6 mm/s ² .
The "cutting speed" of media B, C, and E can also be set within any range.

In the above embodiment, as shown in FIG. 7, each time the distance of the cut line exceeds the set distance, the cut processing execution unit 66 moves the cutter in the direction of moving the cutter away from the sheet medium without moving it away from the sheet medium. Although the cutting process is performed by moving the cutter in the direction of contact with the sheet medium and returning it, the cutter is not particularly limited and may be moved away from the sheet medium.
For example, the cut processing execution unit 66 may move the cutter up and down so as to move it slightly away from the sheet medium. By doing so, although the cutting processing time becomes somewhat longer, it is possible to further suppress the adhesive of the sheet medium from being deposited on the cutter during the cutting processing. That is, it becomes easier to remove the adhesive adhering to the cutter.

In the embodiment described above, a cutting program is stored in a recording medium that can be read by the cutting device 1, and the processing is executed by the cutting device 1 reading and executing the program. Here, the recording medium readable by the cutting device 1 refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, and the like.
Alternatively, the cutting program may be distributed to a user terminal (not shown) via a communication line, and the user terminal receiving the distribution may function as a video processing device and execute the program.

In this embodiment, the cutting device and cutting program according to the present invention have been mainly described.
However, the embodiments described above are merely examples for facilitating understanding of the present invention, and do not limit the present invention. The present invention may be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof.

1 Cutting device 2 Sheet medium 2a Image 10 User input mechanism 20 Display mechanism 30 Sheet transport mechanism 31 Transport table 32 Drive roller 32a Rotating shaft 33 Pressure roller 33a Rotating shaft 33b Compression spring 34 Stock roller 35 Take-up roller 40 Carriage 41 Cutter
42 Cutter holder 43 Actuator (cutter movement mechanism)
50 Carriage movement mechanism 51 Slide rail 52 Slider 60 Controller 61 Storage unit 62 Sheet selection reception unit 63 Sheet attribute information acquisition unit 64 Attribute threshold determination unit 65 Cut condition setting unit 66 Cut processing execution unit X Conveyance mechanism Y Moving direction Z Vertical direction

Claims (7)

A cutting device that performs cutting processing by conveying the sheet medium in a conveying direction that intersects with the moving direction of the carriage while moving a carriage holding the cutter with the cutter in contact with or separating from the sheet medium. There it is,
a sheet attribute information acquisition unit that acquires attribute information regarding the properties of the sheet medium to be cut;
an attribute threshold determination unit that determines whether an attribute value indicated by the acquired attribute information of the sheet medium is equal to or greater than a predetermined threshold;
a cut processing execution unit that executes a cut processing based on the determination result,
The cut processing execution unit is
When attribute information regarding the viscosity of the sheet medium to be cut is obtained and it is determined that the viscosity of the sheet medium is equal to or higher than a predetermined viscosity threshold,
Each time the distance of the cut line formed on the sheet medium exceeds a preset distance, the cutter is moved in a direction away from the sheet medium, and then moved in a direction in which it is brought into contact with the sheet medium. A cutting device characterized in that the cutting process is performed so as to return the cut. The cutting device is a cutting device that continuously performs cutting processing by holding the sheet medium in a roll shape between a drive roller and a pressure roller, and conveying the sheet medium by the rotational operation of the drive roller. ,
The cut processing execution unit includes:
When attribute information regarding the viscosity of the sheet medium to be cut is obtained and it is determined that the viscosity of the sheet medium is equal to or higher than a second viscosity threshold that is larger than the viscosity threshold,
Each time the distance of the cut line exceeds a second set distance shorter than the set distance, the cutter is moved in a direction to once move away from the sheet medium, and then moved in a direction to bring it into contact with the sheet medium. The cutting device according to claim 1, wherein the cutting process is performed so as to return the cut. The cut processing execution unit includes:
When attribute information regarding the viscosity of the sheet medium to be cut is obtained and it is determined that the viscosity of the sheet medium is less than the viscosity threshold,
3. The cutting process according to claim 2, wherein the cutting process is performed so that the cutter is not moved in the direction of contact with or away from the sheet medium until the cutting process is completed, regardless of the distance of the cut line. cutting equipment. further comprising a cut condition setting section that sets parameters regarding cut processing conditions based on the determination result,
The cut processing execution unit includes:
When attribute information regarding the hardness of the sheet medium to be cut is obtained and it is determined that the hardness of the sheet medium is equal to or higher than a predetermined hardness threshold,
4. The cutting device according to claim 2, wherein the cutting process is executed by setting a moving speed of the cutter, which is a cutting process condition, to be slower than a preset speed. The cut processing execution unit includes:
When attribute information regarding the thickness of the sheet medium to be cut is obtained and it is determined that the thickness of the sheet medium is equal to or greater than a predetermined thickness threshold,
5. The cutting apparatus according to claim 4, wherein the cutting process is executed by setting a pressure of the cutter against the sheet medium, which is a cutting process condition, to be higher than a preset pressure. Each time the distance of the cut line exceeds the set distance, the cut processing execution unit moves the cutter in a direction to prevent the cutter from separating from the sheet medium, and then moves the cutter in a direction to contact the sheet medium. The cutting device according to any one of claims 1 to 5, wherein the cutting process is performed so as to move the cutting device to a position and then return the cutting device. A cutting device that performs a cutting process by conveying the sheet medium in a conveyance direction that intersects with the moving direction of the carriage while moving a carriage holding the cutter while the cutter is in contact with or separated from the sheet medium. to the computer of
sheet attribute information acquisition processing for acquiring attribute information regarding the properties of the sheet medium to be cut;
Attribute threshold determination processing that determines whether an attribute value indicated by the acquired attribute information of the sheet medium is equal to or greater than a predetermined threshold;
executing a cut processing execution process of executing a cut processing based on the determination result;
In the cut processing execution process,
When attribute information regarding the viscosity of the sheet medium to be cut is obtained and it is determined that the viscosity of the sheet medium is equal to or higher than a predetermined viscosity threshold,
Each time the distance of the cut line formed on the sheet medium exceeds a preset distance, the cutter is moved in a direction away from the sheet medium, and then moved in a direction in which it is brought into contact with the sheet medium. A cutting program characterized in that the cutting process is executed so as to return the cutting process.

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