Cutting machine and perforation control method for cutting machine

Abstract

To provide a cutting machine and a perforation control method for a cutting machine capable of shortening time required for perforation.SOLUTION: A cutting machine 100 includes a cutting-and-perforation head 20 including a cutting device 20a that cuts a sheet material 9 and a first perforation device 20b that performs perforation on the sheet material 9, and a perforation head 30 that includes a second perforation device 30a that performs perforation on the sheet material 9 and does not cut the sheet material 9. The cutting machine further includes a control unit 4 that controls perforation by the cutting-and-perforation head 20 and perforation by the perforation head 30 to be performed in parallel as pre-perforation being perforation that is executed prior to a cutting process.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a cutting machine equipped with a perforating device for perforating sheet material, and a method for controlling perforation of the cutting machine. [Background technology]

[0002] BACKGROUND ART Conventionally, there has been known a cutting machine equipped with a perforating device that perforates a sheet material to mark positions on the fabric to indicate sewing positions, button attachment positions, and the like (see, for example, Patent Document 1).

[0003] The above-mentioned Patent Document 1 discloses a cutting machine that is installed on a support beam and has a single cutting head equipped with both a cutting device and a perforating device. The above-mentioned cutting machine is configured so that the single perforating device of the cutting head perforates the sheet material before or after the cutting process. Although not explicitly stated in Patent Document 1, perforations that require positional accuracy are generally performed before the cutting process, when the sheet material is in a state where it will not be displaced due to cutting. This perforation before the cutting process is called pre-perforation.

[0004] Also, conventionally, there is known a cutting machine that includes a work carriage provided with a label applicator that applies labels to sheet materials for marking, and a carriage assembly provided with a cutter (see, for example, Patent Document 2). The work carriage and carriage assembly in Patent Document 2 have different support beams. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-43249 [Patent Document 2] Japanese Patent Application Publication No. 8-243983 Summary of the Invention [Problem to be solved by the invention]

[0006] When pre-perforating, the cutting machine of Patent Document 1 requires all pre-perforations to be performed in order using a single cutting head, and it is desirable to reduce the time required for perforation compared to conventional methods. Also, when considering a configuration in which the label applicator of the work carriage of the cutting machine of Patent Document 2 is replaced with a perforation device, it is also desirable to reduce the time required for perforation because, as with the cutting machine of Patent Document 1, all pre-perforations must be performed in order using the work carriage.

[0007] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a cutting machine and a method for controlling perforation of a cutting machine that can shorten the time required for perforation. [Means for solving the problem]

[0008] In order to achieve the above object, a cutting machine in a first aspect of the present invention is a cutting machine equipped with a cutting and perforating section including a cutting device for cutting sheet material and a first perforating device for perforating the sheet material, and a perforating section including a second perforating device for perforating the sheet material and not cutting the sheet material, and is equipped with a control unit that controls the perforating by the cutting and perforating section and the perforating by the perforating section to be performed in parallel as pre-perforating, which is perforating performed prior to the cutting process.

[0009] In a cutting machine according to a first aspect of the present invention, in addition to the second perforating device, the cutting and perforating section is also provided with a first perforating device, and a control unit is provided that controls perforation by the cutting and perforating section and perforation by the perforating section to be performed in parallel as pre-perforation, which is perforation performed prior to the cutting process. This allows pre-perforation by the cutting and perforating section and pre-perforation by the perforating section to be performed in parallel, thereby reducing the number of pre-perforations assigned to each of the first and second perforating devices compared to when all pre-perforations are performed sequentially using a single perforating device. Furthermore, pre-perforation can be performed simultaneously by the perforating section and the cutting and perforating section, thereby avoiding the waste of having the cutting and perforating section stand by without operating. As a result, the time required for pre-perforation can be shortened, thereby shortening the time required for perforation.

[0010] In the cutting machine according to the first aspect, the control unit preferably includes at least some of the targets for post-perforation, which are perforations that can be processed after the cutting process, in the targets for pre-perforation. Here, post-perforation is a type of perforation that does not require high positional accuracy compared to pre-perforation, and therefore has traditionally been performed after cutting. With the above configuration, at least some of the targets for post-perforation, which have traditionally been performed after cutting, can be included in the targets for pre-perforation, thereby reducing the number of post-perforation processes. In this case, perforations that would have been performed as post-perforation using a single perforation device can now be performed as pre-perforation in parallel using both the perforation unit and the cutting perforation unit. As a result, the time required for post-perforation can be shortened, thereby reducing the time required for perforation.

[0011] In this case, the control unit preferably includes, among the sheet material, the target of post-perforation in the cutting end vicinity region, which is located near the end of the cutting process, as the target of pre-perforation by the cutting perforation unit. Here, while the cutting end vicinity region is being cut by the cutting perforation unit, if the perforation unit attempts to enter the cutting end vicinity region, it will interfere with the cutting perforation unit and cannot enter the cutting end vicinity region. With the above configuration, the target of post-perforation in the cutting end vicinity region can be included as the target of pre-perforation by the cutting perforation unit, eliminating the need for the perforation unit to post-perforate the cutting end vicinity region after cutting. This avoids the waste of having to wait without operating the perforation unit for post-perforation while the cutting end vicinity region is being cut by the cutting perforation unit. As a result, the time required for post-perforation can be further reduced.

[0012] In the cutting machine according to the first aspect, the control unit is preferably configured to perform control to adjust the processing time of pre-perforation by the cutting and perforating unit so that the processing time of pre-perforation by the perforating unit is approximately the same. This configuration makes it possible to avoid one of the cutting and perforating unit completing pre-perforation first and entering a standby state. As a result, the time required for pre-perforation can be further reduced, thereby further reducing the time required for perforation. Here, in this specification, "approximately the same" is a broad concept that includes both cases where the two values ​​are completely the same and cases where the two values ​​are close to each other.

[0013] In this case, the control unit is preferably configured to perform control to adjust the sharing ratio of the number of pre-perforations by the cutting and perforating unit and the perforating unit so that it is approximately the same as the speed ratio between the movement speed of the cutting and perforating unit when pre-perforating and the movement speed of the perforating unit when pre-perforating. With this configuration, it is easy to make the pre-perforation processing time by the cutting and perforating unit and the pre-perforation processing time by the perforating unit approximately the same.

[0014] A second aspect of the present invention is a method for controlling perforation of a cutting machine having a cutting and perforating section including a cutting device for cutting sheet material and a first perforating device for perforating the sheet material, and a perforating section including a second perforating device for perforating the sheet material but not cutting the sheet material, the method comprising the steps of performing perforation by the cutting and perforating section and perforation by the perforating section in parallel as pre-perforation, which is perforation performed prior to the cutting process, and performing a cutting process in which the sheet material is cut by the cutting and perforating section after the pre-perforation.

[0015] A second aspect of the present invention provides a method for controlling perforation of a cutting machine, including providing a first perforation device in the cutting / perforating section in addition to the second perforation device, and performing perforation by the cutting / perforating section and perforation by the perforating section in parallel as pre-perforation, which is performed prior to the cutting process. This allows pre-perforation by the cutting / perforating section and pre-perforation by the perforating section to be performed in parallel, thereby reducing the number of pre-perforations assigned to each of the first perforating device and the second perforating device, compared to performing all pre-perforations sequentially using a single perforating device. Furthermore, since pre-perforation can be performed simultaneously by the perforating section and the cutting / perforating section, it is possible to avoid the waste of having the cutting / perforating section wait without operating. As a result, the time required for pre-perforation can be shortened, thereby shortening the time required for perforation. [Effects of the Invention]

[0016] According to the present invention, as described above, the time required for perforation can be reduced. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is a side view of a cutting machine according to an embodiment. [Figure 2] FIG. 2 is a plan view of a cutting machine according to an embodiment. [Figure 3] FIG. 2 is a block diagram of a cutting machine according to an embodiment. [Figure 4] This is a schematic plan view to explain the cutting process and perforation process in order, where (A) shows the state where pre-perforation is being performed, (B) shows the state where cutting process and post-perforation are being performed, and (C) shows the state where cutting process is being performed in the area near the cutting end (state where cutting is almost complete). [Figure 5] 10 is a flowchart of a cutting process and a perforation process executed by a control unit of a cutting machine according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment will be described with reference to the drawings.

[0019] [Embodiment] 1 to 5, a cutting machine 100 according to an embodiment and a method for controlling perforation by the cutting machine 100 will be described. First, the configuration of the cutting machine 100 according to this embodiment will be described with reference to FIGS.

[0020] (Overall configuration of the cutting machine) 1 and 2 is a device for cutting sheet material 9 such as fabric used for clothing, leather, paper, plastic material, etc. The cutting machine 100 is configured to be able to perforate the sheet material 9 before and after the cutting process to mark the sewing positions of the fabric, the attachment positions of buttons, etc. As a result of the perforation, multiple holes are formed in predetermined positions in the sheet material 9, and these multiple holes are used as markers in the process after the cutting process.

[0021] The perforation performed by the cutting machine 100 prior to the cutting process is called pre-perforation. Here, the sheet material 9 cut by the cutting machine 100 is slightly displaced from the position where it was placed before cutting. Pre-perforation is performed without causing any displacement of the sheet material 9 due to the cutting process, so it is possible to ensure the positional accuracy of the perforation. Therefore, generally, perforations that require positional accuracy are performed as pre-perforation.

[0022] The cutting machine 100 is driven by a CAD / CAM (Computer Aided Design / Computer Aided Manufacturing) system. Specifically, the cutting shape of the sheet material 9 and perforation positions are input by the user into the CAD system of the cutting machine 100. Furthermore, the path (tool path) along which the cutting and perforating head 20 and perforating head 30 (described later) are moved is input by the user into the CAM system of the cutting machine 100. Furthermore, as described above, the cutting machine 100 typically uses the CAM system to specify perforations that require positional accuracy among multiple perforations. In other words, the perforations to be processed as pre-perforations are specified and identified by the user. The cutting and perforating head 20 is an example of a "cutting and perforating unit" in the claims. The perforating head 30 is an example of a "perforating unit" in the claims.

[0023] Perforations that are not designated as perforations to be processed as pre-perforations are post-perforations. Post-perforations are perforations that can be processed after the cutting process and do not require high positional accuracy compared to pre-perforations. In conventional general cutting machines, perforations that are not designated as perforations to be processed as pre-perforations (perforations that do not require high positional accuracy compared to pre-perforations) are performed after cutting.

[0024] In contrast to this, in this embodiment, the cutting machine 100 (controller 4) performs control so that at least some of the targets for post-perforation, which are perforations that can be processed after the cutting process, are included in the targets for pre-perforation. Details will be described later.

[0025] In the drawings, the extension direction of support beams 21 and 31 in a horizontal plane is indicated as the Y direction, the direction perpendicular to the Y direction in the horizontal plane is indicated as the X direction, and the vertical direction is indicated as the Z direction. Within the X direction, the conveyance direction of sheet material 9 to be cut by cutter 100 is indicated as the X1 direction, and the opposite direction is indicated as the X2 direction. Within the Z direction, the upward direction is indicated as the Z1 direction, and the downward direction is indicated as the Z2 direction.

[0026] A cloth spreading machine (not shown) is provided on the carry-in side (X2 direction side) of the cutting machine 100, and a pickup table (not shown) is provided on the carry-out side (X1 direction side) of the cutting machine 100. Note that the cutting machine does not necessarily have to be provided with either or both of the cloth spreading machine and the pickup table. Furthermore, instead of conveying the sheet material on the cutting table of the cutting machine, the sheet material may be placed on the cutting table by a predetermined placement device or by the user.

[0027] As shown in FIGS. 1 and 2, cutting machine 100 includes cutting table 1, cutting and perforating mechanism 2 including cutting and perforating head 20, perforating mechanism 3 including perforating head 30, and control unit 4.

[0028] (Cutting table configuration) The cutting table 1 includes a mounting portion 10 on which the sheet material 9 is placed for cutting. In short, the cutting table 1 is a workbench for cutting the sheet material 9. The cutting table 1 also performs perforation on the sheet material 9. As an example, the mounting portion 10 has a brush-like surface on which the sheet material 9 is placed. To maintain the sheet material 9 in contact with the mounting portion 10, the cutting table 1 is configured to suck the sheet material 9 from below the brush-like mounting portion 10 and press the sheet material 9 against the mounting portion 10. This prevents the sheet material 9 from shifting position during cutting. The cutting table 1 functions as a conveyor that transports the sheet material 9 along the transport direction (X direction). Both ends 11 of the cutting table 1 in the Y direction extend in the X direction and function as guides for moving the cutting and perforating mechanism 2 and the perforating mechanism 3 in the X direction. As an example, both ends 11 are provided with guide grooves 11a extending in the X direction.

[0029] (Configuration of cutting and perforation mechanism) As shown in Figures 1 and 2, the cutting and perforating mechanism 2 is disposed above the cutting table 1. The cutting and perforating mechanism 2 is configured to move horizontally to perform cutting and perforating processes on the sheet material 9. The cutting and perforating mechanism 2 includes a single cutting and perforating head 20, a support beam 21, a support section 22, a Y-direction moving section 23 (see Figure 3), and an X-direction moving section 24 (see Figure 3).

[0030] The cutting / perforating head 20 is mounted on a support beam 21. The cutting / perforating head 20 includes a cutting device 20a and a first perforating device 20b. The cutting device 20a is configured to cut the sheet material 9. The cutting device 20a is equipped with a reciprocating cutting knife N that cuts the sheet material 9 by moving up and down. Note that the cutting device may be equipped with a round blade that cuts the sheet material by rotation instead of a cutting knife. The cutting device 20a is also equipped with a turning unit (not shown) that changes the direction of the cutting knife N in a horizontal plane, and an elevation switching unit (not shown) that raises and lowers the cutting knife N to switch between a cutting position and a retracted position.

[0031] The first perforating device 20b is configured to perforate the sheet material 9. The first perforating device 20b is provided with a perforating drill D1 that rotates to penetrate and perforate the sheet material 9. Note that the first perforating device may be provided with a perforating needle or the like that perforates by piercing the sheet material instead of the perforating drill.

[0032] The support beam 21 is disposed above the cutting table 1 at a predetermined distance from the mounting portion 10. The support beam 21 is formed of a beam member that extends linearly in the Y direction. The support beam 21 is known as a Y beam. The support beam 21 is a guide member that guides the movement of the cutting and perforating head 20 mounted on the support beam 21 in the Y direction.

[0033] The support portions 22 are a pair that support both ends of the support beam 21 in the Y direction. The lower ends of the pair of support portions 22 are installed from above on both end portions 11 in the Y direction of the cutting table 1. The pair of support portions 22 (cutting and perforating mechanism 2) are configured to be movable in the X direction along the guide grooves 11a of both end portions 11. When viewed from the X direction, the cutting and perforating mechanism 2 is formed by the support beam 21 and the pair of support portions 22 into an arch shape (gate shape) through which the sheet material 9 can pass.

[0034] The Y-direction moving unit 23 (see FIG. 3) is configured to move the cutting / perforating head 20 in the Y direction along the support beam 21 extending in the Y direction. In short, the Y-direction moving unit 23 is a linear motion device for the cutting / perforating head 20. The Y-direction moving unit 23 can be configured using various drive mechanisms such as a ball screw drive mechanism, a cylinder drive mechanism, a rack and pinion drive mechanism, a roller (wheel) drive mechanism, and a belt drive mechanism.

[0035] The X-direction moving unit 24 (see FIG. 3) is configured to move the cutting / perforating head 20 in the X direction together with the pair of supports 22 and the support beams 21 along the guide grooves 11a at both ends 11 extending in the X direction of the cutting table 1. In short, the X-direction moving unit 24 is a linear motion device for the cutting / perforating head 20. The X-direction moving unit 24 can be configured using various drive mechanisms, such as a ball screw drive mechanism, a cylinder drive mechanism, a rack and pinion drive mechanism, a roller (wheel) drive mechanism, and a belt drive mechanism.

[0036] (Configuration of perforation mechanism) As shown in Figures 1 and 2, the perforating mechanism 3 is disposed above the cutting table 1 and on the X1 side of the cutting and perforating mechanism 2. The perforating mechanism 3 cannot move beyond the cutting and perforating mechanism 2 toward the X2 side of the cutting and perforating mechanism 2. This is because if the perforating mechanism 3 were to attempt to move toward the X2 side of the cutting and perforating mechanism 2, it would interfere with the cutting and perforating mechanism 2. The perforating mechanism 3 is configured to move horizontally to perforate the sheet material 9. The perforating mechanism 3 includes a single perforating head 30 that does not cut the sheet material 9, a support beam 31, support sections 32 that support both ends of the support beam 31 in the Y direction, a Y-direction moving section 33 (see Figure 3), and an X-direction moving section 34 (see Figure 3).

[0037] The perforating head 30 is mounted on a support beam 31. The perforating head 30 includes a second perforating device 30a. The second perforating device 30a is configured to perforate the sheet material 9. The second perforating device 30a is provided with a perforating drill D2 that penetrates the sheet material 9 while rotating to perforate. Note that the second perforating device may be provided with a perforating needle or the like that perforates by piercing the sheet material instead of a perforating drill.

[0038] The support beam 31, support section 32, Y-direction moving section 33, and X-direction moving section 34 of the perforation mechanism 3 have the same configuration as the support beam 21, support section 22, Y-direction moving section 23, and X-direction moving section 24 of the cutting and perforation mechanism 2, so their explanation will be omitted.

[0039] (Configuration of control unit) 1 to 3 controls the execution of the cutting process and perforation process. As an example, the control unit 4 includes a CPU, a ROM storing programs for executing the cutting process and perforation process, and a RAM as a temporary storage unit. The ROM also stores cutting information that specifies the cut shape of the sheet material 9, perforation position information that specifies the perforation positions, and pre-perforation information that specifies the perforations to be processed as pre-perforations.

[0040] In this embodiment, the control unit 4 is configured to perform perforation by the cutting / perforating head 20 and perforation by the perforating head 30 in parallel as pre-perforation, which is perforation performed prior to the cutting process. In other words, during pre-perforation, the control unit 4 controls the driving of the cutting / perforating mechanism 2 and the perforating mechanism 3 so that pre-perforation is performed by both the cutting / perforating head 20 and the perforating head 30 simultaneously, rather than putting one of the cutting / perforating head 20 and the perforating head 30 into a standby state. In this embodiment, for example, pre-perforation by the cutting / perforating head 20 and pre-perforation by the perforating head 30 are started simultaneously.

[0041] Before performing this pre-perforation, the control unit 4 is configured to perform control to adjust the pre-perforation processing time by the cutting / perforating head 20 and the pre-perforation processing time by the perforating head 30 so that they are approximately the same. In this case, "approximately the same" is a broad concept that includes both cases where the two values ​​are completely the same and cases where the two values ​​are close to each other. In short, the control unit 4 performs control to reduce the difference between the processing times by bringing the pre-perforation processing time by the cutting / perforating head 20 and the pre-perforation processing time by the perforating head 30 closer to each other, or to eliminate the difference between the processing times and make them identical.

[0042] Specifically, control unit 4 performs the following control to ensure that the processing time for pre-perforating by cutting and perforating head 20 and the processing time for pre-perforating by perforating head 30 are approximately the same. Control unit 4 performs control to adjust the sharing ratio of the number of pre-perforations between cutting and perforating head 20 and perforating head 30 so that it is approximately the same as the speed ratio between the movement speed of cutting and perforating head 20 when performing pre-perforations and the movement speed of perforating head 30 when performing pre-perforations.

[0043] As an example, suppose the total number of pre-perforations to be performed by both the cutting / perforating head 20 and the perforating head 30 is 2,300, the movement speed of the cutting / perforating head 20 is 1.3 m / s, and the movement speed of the perforating head 30 is 1.0 m / s. In this case, the speed ratio between the movement speed of the cutting / perforating head 20 when performing pre-perforations and the movement speed of the perforating head 30 when performing pre-perforations is 13:10. Therefore, the ratio of the number of pre-perforations to be performed by the cutting / perforating head 20 and the perforating head 30 is also 13:10. Therefore, the number of pre-perforations to be performed by the cutting / perforating head 20 is 1,300, and the number of pre-perforations to be performed by the perforating head 30 is 1,000. By such control, pre-perforation by the cutting / perforating head 20 and pre-perforation by the perforating head 30 are completed simultaneously.

[0044] The movement speed of the cutting / perforating head 20 and the movement speed of the perforating head 30 can be changed by user settings via a specified input unit. This change also changes the ratio of the number of pre-perforations performed by the cutting / perforating head 20 and the perforating head 30. The perforating head 30 is assigned to perform pre-perforations on the X1 direction side of the sheet material 9 placed on the cutting table 1. The cutting / perforating head 20 is assigned to perform pre-perforations on the X2 direction side of the sheet material 9 placed on the cutting table 1 (the side of the cutting end vicinity region 90 (see FIG. 4) described below).

[0045] 4, control unit 4 performs pre-perforation using cutting / perforating head 20 by moving cutting / perforating head 20 generally in the X1 direction and in the Y direction using cutting / perforating mechanism 2. Similarly, control unit 4 performs pre-perforation using perforating head 30 by moving perforating head 30 generally in the X1 direction and in the Y direction using perforating mechanism 3. Meanwhile, control unit 4 performs cutting using cutting / perforating head 20 and post-perforation using perforating head 30 by moving cutting / perforating head 20 and perforating head 30 generally in the X2 direction and in the Y direction.

[0046] With the above configuration, cutting machine 100 can keep the X-direction positions of each head when cutting / perforating head 20 and perforating head 30 complete pre-perforation relatively close to the X-direction positions of each head when cutting / perforating head 20 begins cutting and perforating head 30 begins post-perforation. This reduces the time required to move cutting / perforating head 20 and perforating head 30. Note that pre-perforation by the cutting / perforating head and perforating head may be performed by moving the cutting / perforating head and perforating head generally in the X2 direction as well as in the Y direction.

[0047] Furthermore, the control unit 4 includes at least some of the targets for post-perforation, which are perforations that can be processed after the cutting process, in the targets for pre-perforation. Specifically, the control unit 4 includes, among the sheet material 9, targets for post-perforation in the cutting end vicinity region 90, which is located near the end 90a during the cutting process, in the targets for pre-perforation by the cutting and perforating head 20.

[0048] The cutting end vicinity region 90 is the region on the X2 direction side of the sheet material 9 where the cutting process of the sheet material 9 is completed. This region is one into which the perforating head 30 cannot enter while the cutting process is being performed by the perforating head 20 due to interference with the perforating head 20. Therefore, if post-perforation is attempted in the cutting end vicinity region, the perforating head or perforating head can only be post-perforated in the cutting end vicinity region after the cutting process is completed by the perforating head or perforating head. However, in this embodiment, the cutting machine 100 includes the target of post-perforation in the cutting end vicinity region 90 as the target of pre-perforation by the perforating head 20. Therefore, there is no need for the cutting machine 100 to post-perforate the cutting end vicinity region 90 by the perforating head 30 or perforating head 20 after the cutting process is completed by the perforating head 30 or perforating head 20. This is because the perforation performed in the cutting end vicinity region 90 has already been completed by pre-perforation, which is a step before the cutting process is completed.

[0049] (Method for controlling perforation of cutting machine) Next, a method for controlling perforation of the cutting machine 100 according to this embodiment will be described with reference to FIGS.

[0050] Specifically, a flowchart of the cutting process and perforation process executed by the control unit 4 will be described with reference to Figures 4 and 5. Note that in each step, parts that overlap with the contents explained in the "Configuration of the control unit 4" above will be briefly explained.

[0051] First, in step S1 shown in Fig. 5, a ratio is determined for the number of pre-perforations to be performed by cutting / perforating head 20 and perforating head 30. After step S1, the process proceeds to step S2.

[0052] In step S2 shown in Figure 5, pre-perforation is performed by the cutting / perforating head 20 and perforating head 30 shown in Figure 4(A). In detail, step S2 is a step in which perforation by the cutting / perforating head 20 and perforation by the perforating head 30 are performed in parallel as pre-perforation, which is performed prior to the cutting process. Based on the allocation ratio determined above, pre-perforation by the cutting / perforating head 20 and pre-perforation by the perforating head 30 are started simultaneously and then completed simultaneously. After step S2, the process proceeds to step S3.

[0053] In step S3 shown in FIG. 5, the cutting process by the cutting perforation head 20 shown in FIG. 4B is initiated, and post-perforation is performed on the cut sheet material 9 by the perforation head 30, following the cutting perforation head 20. In short, step S3 is a step in which, after the pre-perforation, the cutting process of cutting the sheet material 9 is performed by the cutting perforation head 20, and post-perforation is performed by the perforation head 30. Also, as shown in FIG. 4C, the post-perforation by the perforation head 30 in the non-cutting end vicinity region 91 (the region on the X1 direction side of the cutting end vicinity region 90) is first completed, and then the cutting process and perforation process of the sheet material 9 in the cutting end vicinity region 90 by the cutting perforation head 20 are completed, thereby ending the cutting and perforation processes. Note that the post-perforation by the perforation head 30 in the non-cutting end vicinity region 91 may be completed simultaneously with or after the cutting process by the cutting perforation head 20 is completed.

[0054] (Effects of this embodiment) In this embodiment, the following effects can be obtained.

[0055] The configuration of the above embodiment allows pre-perforation by the cutting and perforating head 20 and pre-perforation by the perforating head 30 to be performed in parallel, thereby reducing the number of pre-perforations assigned to each of the first perforating device 20b and the second perforating device 30a compared to when all pre-perforations are performed sequentially using a single perforating device. Furthermore, pre-perforation can be performed simultaneously by the perforating head 30 and the cutting and perforating head 20, which avoids the waste of having the cutting and perforating head 20 wait without operating. As a result, the time required for pre-perforation can be shortened, thereby shortening the time required for perforation.

[0056] Furthermore, with the configuration of the above embodiment, at least some of the targets for post-perforation, which have conventionally been performed after cutting, can be included in the targets for pre-perforation, reducing the number of post-perforation processes. In this case, the post-perforation that would have been performed using a single perforation device can now be performed in parallel using two pre-perforation devices, the perforation head 30 and the cutting perforation head 20. As a result, the time required for post-perforation can be shortened, thereby reducing the time required for perforation.

[0057] Furthermore, with the configuration of the above embodiment, the target of post-perforation in the cutting end vicinity region 90 can be included in the target of pre-perforation by the cutting and perforating head 20, so there is no need to post-perforate the cutting end vicinity region 90 with the perforating head 30 after cutting. This avoids the waste of having to wait without operating the perforating head 30 for post-perforation while the cutting process is being performed by the cutting and perforating head 20 in the cutting end vicinity region 90. As a result, the time required for post-perforation can be further reduced, thereby further shortening the time required for perforation.

[0058] Furthermore, the configuration of the above embodiment makes it possible to prevent one of the cutting / perforating head 20 and the perforating head 30 from completing pre-perforation first and entering a standby state. As a result, the time required for pre-perforation can be further reduced, thereby further reducing the time required for perforation.

[0059] Furthermore, with the configuration of the above embodiment, the processing time for pre-perforating by cutting and perforating head 20 and perforating head 30 can be made substantially the same simply by adjusting the ratio of the number of pre-perforations between cutting and perforating head 20 and perforating head 30 to be substantially the same as the speed ratio between the movement speed of cutting and perforating head 20 when performing pre-perforating and the movement speed of perforating head 30 when performing pre-perforating. In other words, the processing time for pre-perforating by cutting and perforating head 20 and the processing time for pre-perforating by perforating head 30 can be easily made substantially the same.

[0060] [Variations] The embodiments and modifications disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims rather than the description of the above embodiments, and further includes all modifications (modifications) within the meaning and scope of the claims.

[0061] For example, in the above embodiment, all of the targets for post-perforation in the cutting end vicinity region are included in the targets for pre-perforation, and post-perforation in the cutting end vicinity region is not performed. However, the present invention is not limited to this. In the present invention, the targets for post-perforation in the cutting end vicinity region may be post-perforated without being included in the targets for pre-perforation. Also, only some of the targets for post-perforation in the cutting end vicinity region may be included in the targets for pre-perforation. Even in this case, pre-perforation can be performed in parallel using both the cutting end perforation head and the perforation head, thereby reducing the time required for perforation.

[0062] In the above embodiment, the target of post-perforation in the region near the cutting end is included in the target of pre-perforation, but the present invention is not limited to this. In the present invention, at least a part of the target of post-perforation in the region other than the region near the cutting end may be included in the target of pre-perforation.

[0063] In the above embodiment, the "cutting and perforating unit" of the present invention is configured with a single cutting and perforating head, but the present invention is not limited to this. In the present invention, the "cutting and perforating unit" of the present invention may be configured with two heads, one dedicated to cutting and the other dedicated to perforating, mounted on a common support beam.

[0064] In the above embodiment, the ratio of pre-perforation between the cutting and perforating section and the perforating section is determined based on the movement speed of the pre-perforating section and the cutting and perforating section, but the present invention is not limited to this. In the present invention, the ratio of pre-perforation between the cutting and perforating section and the perforating section may also be determined based on the movement path length of the pre-perforating section and the perforating section.

[0065] In the above embodiment, the pre-perforation by the cutting and perforating unit and the pre-perforation by the perforating unit are started simultaneously, but the present invention is not limited to this. In the present invention, the timing at which the cutting and perforating unit and the pre-perforation by the perforating unit start may be staggered rather than being completely simultaneous.

[0066] In the above embodiment, the pre-perforation by the cutting and perforating unit and the pre-perforation by the perforating unit are completed simultaneously, but the present invention is not limited to this. In the present invention, the timing at which the pre-perforation by the cutting and perforating unit and the pre-perforation by the perforating unit are completed may be staggered rather than being completely simultaneous.

[0067] In addition, in the above embodiment, an example was shown in which at least some of the targets for post-punching were included in the targets for pre-punching, but the present invention is not limited to this. In the present invention, none of the targets for post-punching need to be included in the targets for pre-punching. Conversely, all of the targets for post-punching may be included in the targets for pre-punching.

[0068] Furthermore, in the above embodiment, for convenience of explanation, the processing operation of the control unit is described using a flow-driven flowchart in which processing is performed in order according to a processing flow, but the present invention is not limited to this. In the present invention, the processing operation of the control unit may be performed by event-driven processing in which processing is performed on an event-by-event basis. In this case, the processing may be performed completely event-driven, or may be performed by combining event-driven and flow-driven processing. [Explanation of symbols]

[0069] 4. Control Unit 9 Sheet material 20 Perforation head (perforation part) 20a Cutting device 20b First perforation device 30 Perforation head (perforation part) 30a Second perforation device 90 Cutting end vicinity area 90a termination 100 cutting machine

Claims

1. A cutting machine including a cutting and perforating section including a cutting device that cuts a sheet material and a first perforating device that perforates the sheet material, and a perforating section including a second perforating device that perforates the sheet material but does not cut the sheet material, The cutting machine is provided with a control unit that controls the perforation by the cutting perforation unit and the perforation by the perforation unit to be performed in parallel as pre-perforation, which is perforation performed prior to the cutting process.

2. The cutting machine according to claim 1 , wherein the control unit includes, as the pre-perforation targets, at least some of the post-perforation targets that can be processed after the cutting process.

3. The cutting machine of claim 2, wherein the control unit includes the target of post-perforation in the cutting end vicinity area of ​​the sheet material located near the end during the cutting process as the target of pre-perforation by the cutting perforation unit.

4. The cutting machine according to claim 1, wherein the control unit is configured to perform control to adjust the processing time of the pre-perforation by the cutting and perforating unit so that the processing time of the pre-perforation by the perforating unit is approximately the same.

5. The control unit is configured to perform control to adjust the pre-perforation processing time by the cutting and perforating unit and the pre-perforating processing time by the perforating unit so that they are approximately the same by adjusting the sharing ratio of the number of pre-perforations between the cutting and perforating unit and the perforating unit so that it is approximately the same as the speed ratio between the movement speed of the cutting and perforating unit when performing the pre-perforations and the movement speed of the perforating unit when performing the pre-perforations.

6. A method for controlling perforation of a cutting machine having a cutting and perforating section including a cutting device that cuts a sheet material and a first perforating device that perforates the sheet material, and a perforating section including a second perforating device that perforates the sheet material but does not cut the sheet material, A step of performing the perforation by the cutting perforation unit and the perforation by the perforation unit in parallel as pre-perforation, which is perforation performed prior to the cutting process; A method for controlling perforation of a cutting machine, comprising: a step of performing the cutting process of cutting the sheet material using the cutting perforation section after the pre-perforation.

Images