Cutting system, cutting device, and cutter unit

Abstract

To provide a technique for more appropriately cutting a sheet-like member.SOLUTION: A cutter system 1 includes an articulated robot 10 and a cutter device 20, and the cutter device 20 includes a body 20A and a cutter unit 20B. The body side 20A has a motor 30 for rotating the rotary blade. The cutter unit 20B includes a case 22 for storing a part of the rotary blade 21, and a guide part 23 connected to the case 22 and storing the other part of the rotary blade 21, and has a cut space S for introducing a cut object (film 110) between the case 22 and the guide part 23. The articulated robot 10 moves the cutting device 20 and the cutting object relative to each other. A part of the rotary blade 21 is exposed in the space S, and a cutter unit 20B in the cutter 20 is attachable to and detachable from a body 20A.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cutting system, a cutting device and a cutter unit. [Background technology]

[0002] 2. Description of the Related Art Conventionally, cutting devices are known that cut resin films or the like that are attached to workpieces such as substrates. Known examples of such cutting devices include devices that cut a laminate film to the length of a substrate when the laminate film is to be attached to the substrate. The technology relating to the cutting device is described in, for example, Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-208311 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in recent years, substrates with complex shapes such as curved surfaces have come into use, and when cutting a film attached to such a substrate, it is difficult to properly cut the film using conventional methods such as cutting continuously with a cutter roller or cutting the film by moving a cutter in a linear direction. Furthermore, when cutting a film that has been attached to a substrate of a complex shape and that extends beyond the edge of the substrate, if one end of the film becomes a free end, a method that assumes that the film will be cut by applying tension cannot be used. That is, in the conventional techniques for cutting sheet-like materials such as films, there are cases where the sheet-like material cannot be cut properly.

[0005] An object of the present invention is to realize a technology for more appropriately cutting sheet-like members. [Means for solving the problem]

[0006] In order to solve the above problem, a cutting system according to one embodiment of the present invention comprises: a main body having a motor for rotating the rotary blade; a cutter unit including a case that houses a part of the rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, the cutter unit having a cutting space between the case and the guide part into which an object to be cut is introduced; a cutting device comprising: a conveying device that moves the cutting device and the object to be cut relatively; Equipped with A portion of the rotary blade is exposed within the cutting space, and the cutter unit in the cutting device is detachable from the main body. [Effects of the Invention]

[0007] According to the present invention, a technique for more appropriately cutting a sheet-like member can be realized. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing the overall configuration of a cutting system 1 according to the present invention. [Figure 2] 1 is a schematic diagram (exploded view) showing a specific configuration example of a cutting device 20. FIG. [Figure 3] 2A and 2B are schematic diagrams (exploded view and completed view) showing a configuration example of a case 22. [Figure 4] 10 is a schematic diagram showing an example of a configuration in which a main body 20A and a cutter unit 20B are detachable from each other. FIG. [Figure 5] 2 is a schematic diagram showing the operation of the cutting system 1 when cutting an object to be cut. FIG. [Figure 6] 1 is a schematic diagram showing an example of the configuration of a cutting system 1 capable of bidirectional cutting. [Figure 7]FIG. 10 is a schematic diagram showing a modified example of the cutter unit 20B. [Figure 8] FIG. 10 is a schematic diagram showing a modified example of the cutter unit 20B. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. [First embodiment] [composition] FIG. 1 is a schematic diagram showing the overall configuration of a cutting system 1 according to the present invention. The cutting system 1 is a device for cutting a film 110, and is particularly configured to be able to easily cut a film 110 attached to a workpiece 100 having a three-dimensional shape (such as a curved shape) along the workpiece 100 in any posture. In the following description, the member referred to as the film 110 includes various items that can be attached to the workpiece 100, such as adhesives called films, stickers, sheets, webs, and the like.

[0010] As shown in FIG. 1, the cutting system 1 includes an articulated robot 10 and a cutting device 20. The articulated robot 10 (transport device) is, for example, composed of a six-axis vertical articulated robot, and by attaching the cutting device 20, the cutting device 20 can be controlled to any position and posture to cut the film 110 attached to the workpiece 100. The cutting device 20 has a rotary blade 21 that is rotated by a motor, and cuts the film 110 while clamping it.

[0011] In cutting device 20, rotary blade 21 is covered by cutter unit 20B (described below), and a portion of cutter unit 20B is open, exposing a portion of rotary blade 21 through the open portion. When film 110 is cut, articulated robot 10 equipped with cutting device 20 moves cutting device 20 while changing its posture. This allows film 110 to be cut by rotary blade 21 while being sandwiched in the opening of cutter unit 20B.

[0012] FIG. 2 is a schematic diagram (exploded view) showing a specific configuration example of the cutting device 20. As shown in FIG. As shown in FIG. 2, in the cutting system 1, the cutting device 20 has a main body 20A and a cutter unit 20B connected by a connecting portion 20C, and the main body 20A and the cutter unit 20B are detachable from each other. The main body 20A incorporates a motor 30 that rotates the rotary blade 21, and a rotary shaft 30a of the motor 30 protrudes from an end face of the main body 20A. A gear 30b that meshes with a gear 21b that is mounted on the rotary shaft 21a of the rotary blade 21 is mounted on the rotary shaft 30a of the motor 30.

[0013] The cutter unit 20B includes a rotary blade 21, a case 22, and a guide portion 23. Rotary blade 21 cuts the object to be cut (here, film 110) by rotating around rotation shaft 21a. Gear 21b is attached to rotation shaft 21a of rotary blade 21, and gear 21b meshes with gear 30b attached to rotation shaft 30a of motor 30, thereby transmitting the driving force of motor 30 to rotary blade 21. In this embodiment, the rotary shaft 21a of the rotary blade 21 is arranged parallel to the rotary shaft 30a of the motor 30, so that the rotary blade 21 rotates in a plane parallel to the end face of the main body 20A.

[0014] The case 22 is configured as a plate-like member having an internal space for accommodating the rotary blade 21. In this embodiment, the case 22 accommodates at least half the diameter of the rotary blade 21 and has a structure in which a portion of the rotary blade 21 is exposed from the case 22. In addition, a through-hole 22a is formed on the back surface of the case 22, through which the rotation shaft 21a of the rotary blade 21 is inserted.

[0015] FIG. 3 is a schematic diagram (exploded view and completed view) showing an example of the configuration of the case 22. As shown in FIG. 3, the case 22 includes a support member 221, a rear plate-like body 222, and a front plate-like body 223. The support member 221 serves as a support for supporting the rear plate-like body 222 and the front plate-like body 223, and has a circular hollow portion 221a in the center with an inner diameter larger than the diameter of the rotary blade 21. Furthermore, one end side (the lower end side in FIG. 3) of the support member 221 is formed with a portion (hereinafter referred to as "open portion 221b") where no member surrounds the hollow portion 221a.

[0016] The rear plate-like body 222 is a plate-like member that covers the rear side of the support member 221, and is shaped to cover at least half of the diameter of the rotary blade 21 (for example, ¾ of the diameter). One end side (the lower end side in FIG. 3) of the rear plate-like body 222 is located at the boundary with the part of the support member 221 where the open part 221b is formed (the upper end of the open part 221b in FIG. 3). Furthermore, a through-hole 222a, through which the rotation shaft 21a of the rotary blade 21 is inserted, is formed in the rear plate-like body 222 at a part facing the center of the hollow part 221a of the support member 221 when the rear plate-like body 222 is attached to the support member 221.

[0017] The front plate 223 is a plate-like member that covers the front side of the support member 221, and similar to the rear plate 222, has a shape that covers at least half (for example, ¾ of the diameter) of the diameter of the rotary blade 21. Similarly to the rear plate 222, one end of the front plate 223 (the lower end in FIG. 3) is located at the boundary with the portion of the support member 221 where the opening 221b is formed (the upper end of the opening 221b in FIG. 3).

[0018] When the rear plate 222 and the front plate 223 are placed across the support member 221, the rear plate 222 and the front plate 223 sandwich and cover the upper end of the opening 221b of the support member 221, and the tip side (the lower end side in FIG. 3) of the opening 221b protrudes from the rear plate 222 and the front plate 223. Hereinafter, the portion of the support member 221 protruding from the rear plate 222 and the front plate 223 will be referred to as the protruding support portion 221c.

[0019] Guide portion 23 is a substantially rectangular parallelepiped member that is installed on protruding support portion 221c of support member 221, and includes groove portion 23a that serves as a space for rotating a portion of rotary blade 21 (the lower end portion in FIG. 3). When guide portion 23 is installed on protruding support portion 221c, one end side (the lower end side in FIG. 3) of guide portion 23 functions as a protective member that covers the outer edge of rotary blade 21, and the other end side (the upper end side in FIG. 3) forms a gap between one end side (the lower end side in FIG. 3) of rear plate-like body 222 and one end side (the lower end side in FIG. 3) of front plate-like body 223 for the film 110 to pass through, thereby guiding film 110 to rotary blade 21.

[0020] When the guide portion 23 is installed on the protruding support portion 221c of the support member 221, a portion of the rotary blade 21 is exposed in the space (hereinafter referred to as the "cutting space S") formed between the rear side plate-like body 222 and the front side plate-like body 223 and the guide portion 23. In this embodiment, the side of the cutting space S where the support member 221 is not present (i.e., the open side) is an opening into which the object to be cut (film 110) is inserted. In the case 22 and the guide part 23, the portion forming the opening of the cutting space S is structured with an inclination so that the opening width of the opening increases toward the end (opening edge) of the opening. This realizes a structure that makes it easy to introduce the object to be cut into the cutting space S. Note that, in order to prevent the operator's body from coming into contact with the rotary blade 21, it is desirable that the opening width of the opening and the distance from the opening to the rotary blade 21 be such that a human finger or the like will not come into contact with the rotary blade 21.

[0021] Furthermore, in the cutting space S, the angle formed by the rotary blade 21 and the guide part 23 is an acute angle, and the rotation direction of the rotary blade 21 is a direction in which the object to be cut is pulled into the interior from the opening of the cutting space S. This causes the object to be sandwiched between the rotary blade 21 and the guide part 23, and even when no tension is applied to the object to be cut, it becomes possible to perform a smooth cut while applying local tension to the cutting part. Furthermore, after passing through both sides of the rotary blade 21, the cut object passes through both sides of the protruding support portion 221c, but since the protruding support portion 221c only has the thickness of the support member 221, the object is not excessively separated after cutting, and the possibility of degrading the quality of the object is reduced.

[0022] Note that the protruding support portion 221c only needs to be strong enough to support the guide portion 23 relative to the case 22, and therefore may be thinner than other portions of the support member 221 as long as the strength is maintained. Furthermore, since it is only necessary to ensure the strength to support the guide portion 23 relative to the case 22 while allowing the object to be cut to pass appropriately on both sides of the protruding support portion 221c after cutting, it is also possible to form the protruding support portion 221c thinner on the side closer to the rotary blade 21 and to configure it so that it becomes thicker as it moves away from the rotary blade 21 (for example, a tapered shape). Furthermore, the protruding support portion 221c may be made of a material stronger than the other portions of the support member 221, allowing it to be configured so that it can be thinner while still maintaining strength. For example, the protruding support portion 221c can be made of stainless steel, and the other portions of the support member 221 can be made of aluminum.

[0023] [Detachable cutting system] In the cutting system 1 having the above-described configuration, the main body 20A and the cutter unit 20B are configured to be easily detachable from each other. FIG. 4 is a schematic diagram showing an example of a configuration in which the main body 20A and the cutter unit 20B are detachable from each other. As a structure for assembling the main body 20A and the cutter unit 20B, for example, the connecting portion 20C can be configured so that a screw P is passed through from the front side plate-shaped body 223 side of the cutter unit 20B and screwed into the end face of the main body 20A to fix it. With this structure, when the rotary blade 21 needs to be replaced due to deterioration of the blade or the like, the cutter unit 20B can be removed and replaced without removing the rotary blade 21.

[0024] In addition to the structure of the connecting portion 20C that screws the cutter unit 20B to the main body 20A, a fitting structure may be formed between the end face of the main body 20A and the rear side plate-like body 222 of the cutter unit 20B, and the fitting structure may be fitted and assembled during use, and when replacing the cutter unit 20B, the fitting structure may be released to remove the cutter unit 20B from the main body 20A.

[0025] [Effect] FIG. 5 is a schematic diagram showing the operation of the cutting system 1 when cutting an object to be cut. As shown in Figure 5, in the cutting system 1, a cutting device 20 is attached as a tool of an articulated robot 10, and the object to be cut (film 110) can be cut while the position and posture of the cutting device 20 is arbitrarily controlled by the articulated robot 10. The example shown in FIG. 5 shows a state in which a film 110 attached to a workpiece 100 made of a substrate (glass substrate or the like) having a three-dimensional shape with a curved surface is cut along the periphery of the workpiece 100.

[0026] When the cutting system 1 cuts the film 110, the workpiece 100 to which the film 110 is attached is held in the space that is the operating range of the articulated robot 10 by, for example, sucking the workpiece 100. At this time, one end of the peripheral edge of the film 110 that protrudes from the workpiece 100 is a free end and is in a state where no tension is applied. With film 110 in this state, articulated robot 10 rotates motor 30 to move cutting device 20, and film 110 is brought into contact with rotary blade 21 through the opening.

[0027] At this time, the opening width increases toward the ends, so that film 110 can be easily introduced. Then, the film 110 is pulled into the cutting space S by the pulling action caused by the rotation of the rotary blade 21, and since the angle formed between the rotary blade 21 and the guide portion 23 is acute, local tension (tension caused by the film 110 resisting the pulling into the groove portion 23a) is applied, and the film 110 is cut smoothly.

[0028] Furthermore, when the articulated robot 10 moves the cutting device 20 in the cutting direction of the film 110, the film 110 after cutting passes on both sides of the rotary blade 21 and on both sides of the protruding support portion 221c and moves to the rear of the cutting device 20 (in the direction of the white arrow in Figure 5). At this time, since the protruding support portion 221c only has the thickness of the support member 221, it does not cause the film 110 to be excessively separated after cutting, thereby reducing the possibility of degrading the quality of the film 110. Furthermore, since the articulated robot 10 can perform cutting at any position and posture within its operating range, it is possible to properly cut the film 110 along the periphery of the workpiece 100 even if the shape of the workpiece 100 is complex.

[0029] As described above, the cutting system 1 according to this embodiment is configured such that a cutter unit 20B having a cutting space S is attached to an articulated robot 10, and the articulated robot 10 controls the cutter unit 20B to any position and posture, and cuts off unnecessary portions of the film 110 attached to the workpiece 100 with a rotary blade 21 partially exposed in the cutting space S. In addition, the opening width of the cutting space S is enlarged, the angle between the rotary blade 21 and the member (guide portion 23) that constitutes the cutting space S is an acute angle, and the rotation direction of the rotary blade 21 is a direction in which the material to be cut is drawn into the interior through the opening of the cutting space S. Therefore, the film 110 can be easily introduced into the cutting space S, and the film 110 is sandwiched between the rotary blade 21 and the guide portion 23, so that even when no tension is applied to the film 110, local tension is applied to the cutting portion, allowing for smooth cutting. Therefore, the cutting system 1 makes it possible to cut the sheet-like material more appropriately.

[0030] Furthermore, since the rotary blade 21 is housed in the case 22 and the guide portion 23 and only a portion of it is exposed to the cutting space S, it is possible to prevent the rotary blade 21 from coming into contact with the worker's body (fingers, etc.). Furthermore, the film 110 that has been cut and passed on both sides of the rotary blade 21 passes on both sides of the protruding support portion 221c, which only has the thickness of the support member 221, so that the film 110 after cutting is not excessively separated, and the possibility of degrading the quality of the film 110 after cutting can be reduced.

[0031] Furthermore, the cutting system 1 is configured to prevent interference between the cutting device 20 and the workpiece 100. That is, the main body 20A of the cutting device 20 is offset from the cutting space S to the opposite side from the guide part 23 (for example, the upper side in FIG. 4). Therefore, the cutting system 1 makes it possible to cut the film 110 at a position close to the edge of the workpiece 100. Furthermore, because the rotation plane of the rotary blade 21 is parallel to the end face of the main body 20A, when the main body 20A is attached as a tool to the articulated robot 10, cutting can be performed with greater movement in the direction in which the articulated robot 10 rotates than in the direction in which the arms of the articulated robot 10 extend and retract. This increases the degree of freedom with which the articulated robot 10 can control the position and attitude of the cutting device 20.

[0032] Furthermore, according to the cutting system 1, when cutting the end of the film 110 attached to one side of a workpiece 100 such as a substrate having film 110 attached to both sides, only the film 110 to be cut, among the films 110 attached to the adjacent surfaces (front and back), can be reliably guided into the interior through the opening of the cutting space S, thereby properly cutting the film 110.

[0033] [Variation 1] In the above-described embodiment, the cutter unit 20B of the cutting device 20 is described as having a protruding support portion 221c and a guide portion 23, and the guide portion 23 installed on the protruding support portion 221c is configured to cover a portion of the rotary blade 21 protruding from the case 22 (the lower end portion in Figure 3). In contrast, by combining the cutter unit 20B without the protruding support portion 221c and the guide portion 23 with a cutting stage having a groove into which the rotary blade 21 protruding from the case 22 is fitted and movable, a cutting system 1 capable of cutting in both directions can be created.

[0034] FIG. 6 is a schematic diagram showing an example of the configuration of a cutting system 1 capable of bidirectional cutting. In the configuration example shown in FIG. 6, the cutting system 1 includes a conveying device 10B, a cutting device 20, and a cutting stage D. As described above, the cutter unit 20B of the cutting device 20 differs from the cutter unit 20B of the first embodiment in that the rotary blade 21 protrudes from the case 22 without the protruding support portion 221c and the guide portion 23. The conveying device 10B can be configured, for example, by a linearly moving air cylinder. The cutting device 20 is attached to the conveying device 10B, and the conveying device 10B moves the cutting device 20 in both directions by linear motion. However, the cutting device 20 can also be linearly moved by the articulated robot 10.

[0035] The cutting stage D is formed with a groove into which the rotary blade 21 is fitted, and the conveying device 10B moves the cutting device 20 so that the rotary blade 21 moves within the groove of the cutting stage D. This makes it possible to realize a configuration suitable for continuously cutting film 110 along a straight line in the same direction, such as continuously cutting film 110 unwound from a roll. In addition, in this configuration, the film 110 can be pressed against the cutting stage D and cut while tension is applied. Even in such a configuration, the rotary blade 21 can be easily replaced by making the cutter unit 20B detachable from the main body 20A.

[0036] [Variation 2] In the above embodiment, an example of the configuration of the cutting device 20 in which the rotation axis of the motor 30 and the rotation axis of the rotary blade 21 are parallel to each other has been described, but the present invention is not limited to this. For example, the rotational force of the rotation shaft of the motor 30 may be bent 90 degrees via a gear (bevel gear or the like) and transmitted to the rotary blade 21, so that the rotary blade 21 rotates in a plane perpendicular to the end face of the main body 20A. In this case, while the direction of movement of the cutting device 20 during cutting is different from that of the above-described embodiment, the film 110 can be easily introduced into the cutting space S, as in the above-described embodiment, and the film 110 is clamped between the rotary blade 21 and the guide portion 23, so that even when no tension is applied to the film 110, local tension is applied to the cutting portion, allowing for smooth cutting.

[0037] [Variation 3] In the above embodiment, the protruding support portion 221c of the cutter unit 20B is disposed immediately after the rotary blade 21 (immediately downstream of the rotary blade 21 in the moving direction of the film 110), but this is not limiting. That is, the protruding support portion 221c of the cutter unit 20B may be disposed at a distance from the rotary blade 21. FIG. 7 is a schematic diagram showing a modified example of the cutter unit 20B. 7, cutter unit 20B of this modified example differs from cutter unit 20B shown in Fig. 3 in that protruding support part 221c is positioned a predetermined distance (for example, about several centimeters) immediately behind rotary blade 21. The space between immediately behind rotary blade 21 and protruding support part 221c is a space where no members exist (hereinafter referred to as the "film flow-down space"), and film 110 cut by rotary blade 21 moves through the film flow-down space immediately after cutting. Therefore, immediately after being cut by the rotary blade 21, the film 110 moves through the film flow-down space without being pinched by any thick members, and passes on both sides of the protruding support portion 221c when it is a certain distance away from the position where the film 110 is cut by the rotary blade 21. Therefore, by sandwiching a thick member between film 110 immediately after cutting, film 110 can be prevented from tearing before the cutting position by rotary blade 21, and the like. In the cutting system 1, the main body 20A of the cutting device 20 is offset from the cutting space S on the opposite side to the guide part 23 (for example, on the upper side in FIG. 4). Therefore, when the cutter unit 20B shown in Figure 7 is attached to the main body 20A, it is possible to cut the film 110 in either orientation relative to the workpiece 100 (the orientation in which the main body 20A is positioned on the side of the workpiece 100 and the orientation in which the main body 20A is positioned opposite the workpiece 100).

[0038] [Variation 4] In the above embodiment, the protruding support portion 221c of cutter unit 20B is positioned immediately after rotary blade 21 (immediately downstream of rotary blade 21 in the direction of movement of film 110), but this is not limited to this. That is, as in the example shown in Modification 3, a film flow-down space without any components may be provided immediately after rotary blade 21, and the rear end of protruding support portion 221c may be bent away from main body 20A. FIG. 8 is a schematic diagram showing a modified example of the cutter unit 20B. As shown in Figure 8, in the cutter unit 20B of this modified example, compared to the cutter unit 20B shown in Figure 7, the rear end (the downstream end in the movement direction of the film 110) of the support member 221, in which the protruding support portion 221c is arranged at a predetermined distance (for example, about several centimeters) immediately after the rotary blade 21, is bent to the opposite side to the main body 20A (bent along a vertical fold line). That is, the downstream side of the rotary blade 21 is a film flow-down space in which no components are present, the rear end of the film flow-down space is open, and the protruding support portion 221c at the tip of the bent support member 221 is connected to the lower end (the portion where the guide portion 23 is installed). Therefore, after being cut by the rotary blade 21, the film 110 attached to the workpiece 100 moves through the film flow-down space and is discharged from the open portion at the rear end. As a result, the film 110 attached to the workpiece 100 does not come into contact with any components after being cut by the rotary blade 21. Furthermore, the scraps of film 110 cut by rotary blade 21 move while avoiding the rear end of bent support member 221 as the cutting progresses. Therefore, it is possible to prevent the cut film 110 from coming into contact with other members, which would otherwise cause dust generation or deterioration in product quality.

[0039] The present invention can be modified and improved as appropriate within the scope of the effects of the present invention, and is not limited to the above-described embodiment. For example, a conveying device such as an articulated robot 10 can not only move the cutting device 20 to cut the object to be cut (such as film 110), but can also move the object to be cut relative to the cutting device 20, or move both the object to be cut and the cutting device 20 together, thereby moving the object to be cut and the cutting device 20 relative to each other in various ways to cut the object to be cut.

[0040] Furthermore, the configurations of the above-described embodiments and modifications may be combined as appropriate. For example, the cutter unit 20B capable of cutting in both directions in the first modification may be configured to transmit the rotational force of the rotation shaft of the motor 30 to the rotary blade 21 by bending it by 90 degrees, as in the second modification.

[0041] As described above, the cutting system 1 in this embodiment includes the articulated robot 10 and the cutting device 20, and the cutting device 20 includes the main body 20A and the cutter unit 20B. The main body 20A has a motor 30 that rotates the rotary blade 21. The cutter unit 20B comprises a case 22 that houses a part of the rotary blade 21, and a guide part 23 that is connected to the case 22 and houses another part of the rotary blade 21, and has a cutting space S between the case 22 and the guide part 23 into which the object to be cut (film 110) is introduced. The articulated robot 10 moves the cutting device 20 and the object to be cut relative to each other. A part of the rotary blade 21 is exposed in the cutting space S, and the cutter unit 20B in the cutting device 20 is detachable from the main body 20A. As a result, by introducing the film 110 into the cutting space S, the film 110 is sandwiched between the rotary blade 21 and the guide portion 23, and even when no tension is applied to the film 110, local tension is applied to the cutting portion, making it possible to perform smooth cutting. Therefore, the cutting system 1 makes it possible to cut the sheet-like material more appropriately.

[0042] The opening width of the cutting space S in the cutter unit 20B increases as it approaches the opening end. This makes it possible to easily introduce the object to be cut into the cutting space S.

[0043] The portion of the cutter unit 20B opposite to the opening of the cutting space S (the protruding support portion 221c) is configured to be thinner than the other portions. This prevents the objects from being separated excessively after cutting, and reduces the possibility of degrading the quality of the objects after cutting.

[0044] The portion of the cutter unit 20B opposite to the opening of the cutting space S (the protruding support portion 221c) has a configuration in which the thickness increases as the distance from the cutting space S increases. This ensures the supporting force connecting the case 22 and the guide portion 23, while preventing the object from being excessively separated after cutting, thereby reducing the possibility of reducing the quality of the object after cutting.

[0045] The portion of the cutter unit 20B opposite the opening of the cutting space S (protruding support portion 221c) is positioned at a distance from the rotary blade 21, and a space (film flow-down space) where no components exist is formed between the rotary blade 21 and the portion. As a result, immediately after being cut by the rotary blade 21, the film 110 moves through the film flow-down space without being pinched by any thick members, and passes on both sides of the protruding support portion 221c when it is a certain distance away from the position where the film 110 is cut by the rotary blade 21. Therefore, by sandwiching a thick member between film 110 immediately after cutting, film 110 can be prevented from tearing before the cutting position by rotary blade 21, and the like.

[0046] The portion of the cutter unit 20B opposite the opening of the cutting space S (protruding support portion 221c) has a space (film flow-down space) formed adjacent to the rotary blade 21 where no components are present, and the end portion is bent along a fold line that intersects with the relative movement direction between the cutter unit 20B and the film 110. As a result, the film 110 attached to the workpiece 100 does not come into contact with any other members after being cut by the rotary blade 21. Furthermore, the scraps of film 110 cut by rotary blade 21 move while avoiding the rear end of bent support member 221 as the cutting progresses. Therefore, it is possible to prevent the cut film 110 from coming into contact with other members, which would otherwise cause dust generation or deterioration in product quality.

[0047] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments. Furthermore, the effects described in the present embodiments are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the present embodiments. [Explanation of symbols]

[0048] 1 Cutting system, 10 Articulated robot, 10B Conveying device, 20 Cutting device, 20A Main body, 20B Cutter unit, 20C Connecting part, 21 Rotary blade, 21a, 30a Rotating shaft, 21b, 30b Gear, 22 Case, 22a, 222a Through hole, 221 Support member, 221a Hollow part, 221b Open part, 221c Protruding support part, 222 Rear side plate-like body, 223 Front side plate-like body, 23 Guide part, 23a Groove part, 30 Motor, 100 Work, 110 Film, S Cutting space, P Screw, D Stage

Claims

1. a main body having a motor for rotating the rotary blade; a cutter unit including a case that houses a part of the rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, the cutter unit having a cutting space between the case and the guide part into which an object to be cut is introduced; a cutting device comprising: a conveying device that moves the cutting device and the object to be cut relatively; Equipped with a part of the rotary blade is exposed in the cutting space, and the cutter unit in the cutting device is detachable from the main body; A cutting system characterized in that a portion of the cutter unit opposite to the opening of the cutting space has a configuration in which the thickness increases as the portion becomes farther away from the cutting space.

2. a main body having a motor for rotating the rotary blade; a cutter unit including a case that houses a part of the rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, the cutter unit having a cutting space between the case and the guide part into which an object to be cut is introduced; a cutting device comprising: a conveying device that moves the cutting device and the object to be cut relatively; Equipped with a part of the rotary blade is exposed in the cutting space, and the cutter unit in the cutting device is detachable from the main body; A cutting system characterized in that the portion of the cutter unit opposite the opening of the cutting space has a space adjacent to the rotary blade where no material is present, and the end is bent along a fold line that intersects the direction of relative movement between the cutter unit and the film.

3. a main body having a motor for rotating the rotary blade; a cutter unit including a case that houses a part of the rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, the cutter unit having a cutting space between the case and the guide part into which an object to be cut is introduced; Equipped with the cutter unit is detachable from the main body, A cutting device characterized in that a portion of the cutter unit opposite to the opening of the cutting space is configured to become thicker as it moves away from the cutting space.

4. a main body having a motor for rotating the rotary blade; a cutter unit including a case that houses a part of the rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, the cutter unit having a cutting space between the case and the guide part into which an object to be cut is introduced; Equipped with the cutter unit is detachable from the main body, A cutting device characterized in that the portion of the cutter unit opposite the opening of the cutting space has a space adjacent to the rotary blade where no material is present, and the end is bent along a fold line that intersects the direction of relative movement between the cutter unit and the film.

5. A cutter unit comprising a case that houses a part of a rotary blade and a guide part that is connected to the case and houses another part of the rotary blade, wherein a cutting space is formed between the case and the guide part into which an object to be cut is introduced, and the part opposite the opening of the cutting space is configured to become thicker the further away from the cutting space it is.

6. A cutter unit comprising a case that houses a part of a rotary blade, and a guide part connected to the case and that houses another part of the rotary blade, wherein a cutting space is formed between the case and the guide part into which an object to be cut is introduced, and wherein a part opposite the opening of the cutting space has a space formed adjacent to the rotary blade where no member is present, and wherein an end is bent along a fold line that intersects with the direction of relative movement between the cutter unit and the film.

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