Cutting device

Abstract

To provide a cutting device which can inhibit movement of a slide door from being hindered by deposition of unnecessary objects scattered during cutting of an object to be cut (a cut object).SOLUTION: A cutting device (100) includes: a cutting mechanism (61B); a scattering mechanism (32) configured to scatter unnecessary objects (S), occurring by the cutting mechanism (61B) cutting a cut object (W), to an area behind the cutting mechanism (61B) in a first direction; and a slide door structure (200) located rearward of the cutting mechanism (61B) in the first direction. The slide door structure (200) includes: a slide door (20); a rail (23) configured to enable linear movement of the slide door (20); a rail cover (21) configured to cover the rail (23); an unnecessary object removal member (28) configured to remove the unnecessary objects (S) on the rail cover (21); and a holding member (27) which places at least a part of the unnecessary object removal member (28) in contact with an upper surface (21a) of the rail cover (21) to hold the unnecessary object removal member (28).SELECTED DRAWING: Figure 2

Description

Technical Field

[0006] , ,

[0001] The present disclosure relates to a cutting device.

Background Art

[0002] Conventionally, in a cutting device for manufacturing individual semiconductor device packages by cutting a package substrate, there has been a problem that end materials of the package substrate scatter due to the rotation direction of the cutting blade when cutting the package substrate (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] A slide door may be provided behind the cutting device for the purpose of preventing unnecessary objects such as end materials scattered during cutting of a cutting object such as a package substrate from scattering to the outside of the cutting device. Further, the slide door is usually configured to be linearly movable for repair and cleaning of the inside of the cutting device and to be openable and closable.

[0005] However, in a conventional cutting device, unnecessary objects such as end materials scattered during cutting of a cutting object may be placed on a rail that enables the slide door to move, preventing the movement of the slide door, or unnecessary objects such as end materials may accumulate due to opening and closing of the slide door, preventing the movement of the slide door.

Means for Solving the Problems

[0006] According to the embodiments disclosed herein, a cutting device can be provided comprising: a cutting mechanism configured to cut an object to be cut; a scattering mechanism configured to scatter waste generated by cutting the object to be cut by the cutting mechanism to the rear in a first direction of the cutting mechanism; and a sliding door structure located behind the cutting mechanism in a first direction, wherein the sliding door structure comprises a sliding door; a rail configured to allow linear movement of the sliding door in a second direction different from the first direction; a rail cover configured to cover the rail; a waste removal member configured to remove waste on the rail cover; and a holding member configured to hold the waste removal member by contacting at least a portion of the waste removal member with the upper surface of the rail cover. [Effects of the Invention]

[0007] According to the embodiments disclosed herein, it is possible to provide a cutting device that can prevent the movement of the sliding door from being obstructed by the accumulation of unwanted materials scattered during the cutting of the object to be cut. [Brief explanation of the drawing]

[0008] [Figure 1] This is a functional block diagram of an example of a cutting device according to an embodiment. [Figure 2] This is a schematic side view of an example of a cutting module of the cutting device according to the embodiment. [Figure 3] This is a schematic perspective view of an example of a spindle with a fluid supply mechanism attached. [Figure 4] This is a schematic perspective view of an example of a sliding door structure as seen from inside the cutting device of the embodiment. [Figure 5] Figure 4 is a partial perspective view of the sliding door structure shown. [Figure 6] This is a schematic plan view of an example of an object to be cut by the cutting mechanism of the cutting device of the embodiment. [Figure 7] This is a schematic plan view of a preferred example of a waste removal member. [Figure 8]This is a schematic side view of a preferred example of a waste removal member and rail cover. [Figure 9] This is a schematic partial side view of a preferred example of a waste removal member. [Figure 10] This is a schematic perspective view of a sliding door structure of a cutting device, a reference example that does not have a rail cover housing member on one side in the X direction. [Figure 11] Figure 10 is a schematic perspective view of the sliding door structure of a cutting device shown as a reference example, with the sliding door in the open position. [Figure 12] This is a schematic perspective view of an example of a sliding door structure of a cutting device according to a second embodiment. [Figure 13] Figure 12 is a schematic perspective view of the sliding door structure of the cutting device of the second embodiment shown, with the sliding door in the open position. [Modes for carrying out the invention]

[0009] The embodiments will be described below. In the drawings used to describe the embodiments, the same reference numerals represent the same part or a corresponding part.

[0010] <Cutting device> Figure 1 shows a functional block diagram of an example of a cutting device according to the embodiment. As shown in Figure 1, the cutting device 100 of the embodiment includes a supply module A capable of supplying an object to be cut, a cutting module B equipped with a cutting mechanism configured to cut the object to be cut, an inspection module C capable of inspecting the product after cutting the object to be cut, a storage module D capable of storing the inspected product, and a control unit. The control unit is configured to control the operation of the supply module A, the cutting module B, the inspection module C, and the storage module D, respectively. The supply module A, the cutting module B, the inspection module C, and the storage module D are detachable from and interchangeable with each other.

[0011] The supply module A is configured to supply a cutting object such as a package substrate to the cutting module B. The cutting module B is configured to cut the cutting object supplied from the supply module A. The inspection module C is configured to inspect the products obtained by cutting the cutting object by the cutting module B into individual pieces. The storage module D is configured to store the products inspected by the inspection module C.

[0012] <Detailed Configuration of Cutting Module B> FIG. 2 shows a schematic side configuration diagram of an example of the cutting module B of the cutting device 100 according to the embodiment. As shown in FIG. 2, the cutting module B includes a cutting table 2B configured to place the cutting object W thereon, a moving mechanism 4B configured to move the cutting table 2B in the Y direction as the first direction, a spindle 6B to which a rotary blade 61B as a cutting mechanism configured to cut the cutting object W is attached, a protective cover 10 configured to cover the moving mechanism 4B, a waste accommodating portion 11 for accommodating an end material S which is an example of waste generated by cutting the cutting object W, a waste discharging portion 15 for discharging the end material S of the cutting object W that has fallen to both sides in the X direction as the second direction of the second protective cover 10B described later into the waste accommodating portion 11, and a slide door structure 200 on the rear outer side of the waste accommodating portion 11.

[0013] <Cutting Table> A cutting jig 3B configured to place the cutting object W thereon is attached above the cutting table 2B in the Z direction as the third direction. A rotating mechanism 5B configured to rotate the cutting table 2B in the θ direction is attached below the cutting table 2B in the Z direction. The cutting table 2B includes a receiving plate member 13, and a discharge groove 13M and a discharge end 13a are provided in the receiving plate member 13.

[0014] <Moving Mechanism> The moving mechanism 4B includes a ball screw mechanism 41 linearly extending in the Y direction, a drive source 42 such as a servo motor for driving the ball screw mechanism 41, a slider 43 connected to a rotation mechanism 5B attached to the cutting table 2B and configured to be reciprocally movable in the Y direction by the ball screw mechanism 41, and a fixed base frame 44 configured to accommodate the ball screw mechanism 41. A slide member 14 protruding rearward in the Y direction is attached to the upper end of the slider 43 in the Z direction. The moving mechanism 4B is configured such that by driving the ball screw mechanism 41 by the drive source 42, the cutting table 2B can be linearly reciprocally moved forward and backward in the Y direction, and an end material S staying on the upper surface of a second protection cover 10B described later can be pushed out into the waste accommodation portion 11 by the tip end portion 14a of the slide member 14.

[0015] <Spindle> A fluid supply mechanism 12 is attached to a spindle 6B to which a rotary blade 61B is attached. The fluid supply mechanism 12 has a nozzle 121 and a supply pipe 122 for supplying liquid to the nozzle 121. FIG. 3 shows a schematic perspective view of an example of the spindle 6B to which the fluid supply mechanism 12 is attached. As shown in FIG. 3, the nozzle 121 of the fluid supply mechanism 12 includes a first nozzle 31 configured to eject a liquid such as water for cooling the cutting object W, a second nozzle 32 as a scattering mechanism configured to eject a liquid such as water so that the end material S generated by cutting the cutting object W by the rotary blade 61B can be scattered rearward in the Y direction of the cutting mechanism 100, and a third nozzle 33 configured to eject a liquid such as water for cooling the rotary blade 61B. The fluid supply mechanism 12 is attached in front of the rotary blade 61B of the spindle 6B in the Y direction.

[0016] <Protection cover> The protective cover 10 shown in Figure 2 is provided between the cutting table 2B and the moving mechanism 4B, and is configured to be expandable and retractable while covering at least the upper part of the moving mechanism 4B. The protective cover 10 comprises a first protective cover 10A provided in front of the cutting table 2B in the Y direction, and a second protective cover 10B provided behind the cutting table 2B in the Y direction.

[0017] The first protective cover 10A is provided between the front wall portion 44a of the fixed frame 44 and the slider 43, and is configured to cover the ball screw mechanism 41 located in front of the cutting table 2B in the Y direction. The first protective cover 10A comprises a first bellows element 10A1 that covers the top of the ball screw mechanism 41, and a plurality of first cover elements 10A2 provided on the upper surface of the first bellows element 10A1 that cover the top of the ball screw mechanism 41. Each of these plurality of first cover elements 10A2 can be, for example, a rectangular flat plate in a plan view. In two adjacent first cover elements 10A2, the first cover element 10A2 located behind the cutting table 2B in the Y direction overlaps the first cover element 10A2 located in front of the cutting table 2B in the Y direction. These first cover elements 10A2 are slidable relative to each other as the cutting table 2B moves. The first protective cover 10A is configured to contract when the cutting table 2B moves forward in the Y direction and to extend when the cutting table 2B moves backward in the Y direction.

[0018] The second protective cover 10B is provided between the rear wall portion 44b of the fixed frame 44 and the slider 43, and is configured to cover the ball screw mechanism 41 located at the rear in the Y direction of the cutting table 2B. The second protective cover 10B comprises a second bellows element 10B1 that covers at least the upper part of the ball screw mechanism 41, and a plurality of second cover elements 10B2 provided on the upper surface of the second bellows element 10B1 that cover the upper part of the ball screw mechanism 41. Each of these plurality of second cover elements 10B2 can be, for example, a rectangular flat plate in a plan view. In two adjacent second cover elements 10B2, the second cover element 10B2 located at the rear in the Y direction of the cutting table 2B overlaps the second cover element 10B2 located at the front in the Y direction of the cutting table 2B. These second cover elements 10B2 are slidable relative to each other as the cutting table 2B moves. The second protective cover 10B is configured to extend when the cutting table 2B moves forward in the Y direction and to contract when the cutting table 2B moves backward in the Y direction.

[0019] <Waste Storage Section> The waste material storage section 11 is provided between the rotating blade 61B, which serves as the cutting mechanism, and the sliding door structure 200. The waste material storage section 11 is configured to accommodate the scrap material S of the object to be cut W pushed out by the tip 14a of the sliding member 14 and the scrap material S of the object to be cut W that is scattered backward in the Y direction by the second nozzle 32 of the fluid supply mechanism 12 attached to the spindle 6B.

[0020] <Unwanted material discharge section> A fluid injection mechanism 16 is attached to the front of the waste discharge section 15. The fluid injection mechanism 16 comprises an injection nozzle 161 provided inside the waste discharge section 15 and a supply pipe 162 that supplies liquid such as water to the injection nozzle 161. The fluid injection mechanism 16 is configured to discharge the scrap material S of the cut material W that has fallen on both sides in the X direction of the second protective cover 10B into the waste material storage section 11 by injecting liquid such as water from the cutting table 2B side of the waste discharge section 15 toward the waste material storage section 11 side.

[0021] <Sliding door structure> The sliding door structure 200 is located behind the rotating blade 61B and the waste storage section 11 in the Y direction. The sliding door structure 200 includes a sliding door 20 configured to reciprocate linearly in the X direction, a rail 23 with a convex center located in front of the sliding door 20 in the Y direction and configured to allow the sliding door 20 to reciprocate linearly in the X direction, a roller 25 with a concave center located in front of the sliding door 20 in the Y direction, a connecting member 24 connecting the sliding door 20 and the roller 25, a bottom member 26 having a bottom surface extending in the X direction below the sliding door 20 in the Z direction, and a rail cover 21 configured to cover the rail 23. The rail cover 21 has an upper surface 21a that covers the upper part of the rail 23 in the Z direction and a side surface 21b that covers the front of the rail 23 in the Y direction.

[0022] The rail 23 is configured to extend linearly in the X direction on the bottom surface of the bottom member 26. The roller 25 is located on the rail 23, and the movement of the roller 25 on the rail 23 enables the linear reciprocating movement of the sliding door 20 in the X direction.

[0023] The rail cover 21 includes an upper surface 21a positioned above the rail 23 in the Z direction, with a gap between it and the rail 23, and a side surface 21b positioned in front of the rail 23 in the Y direction, with a gap between it and the rail 23, facing the rail 23.

[0024] Figure 4 shows a schematic perspective view of the sliding door structure 200 as seen from inside the cutting device 100 of the embodiment. Figure 5 shows a partial perspective view of the sliding door structure 200 shown in Figure 4. As shown in Figures 4 and 5, the sliding door structure 200 includes a waste removal member 28 configured to remove waste from the rail cover 21, and a holding member 27 configured to hold the waste removal member 28 by contacting at least a part of the waste removal member 28 with the upper surface 21a of the rail cover 21. In this embodiment, the holding member 27 is a rail cover housing member configured to accommodate the rail cover 21, and the waste removal member 28 is configured to close at least a part of the gap between the rail cover 21 and the rail cover housing portion, which is an example of the holding member 27. The holding member 27 is installed at the end of the sliding door structure 200, above the upper surface 21a of the rail cover 21 to be housed, with a gap between it and the rail cover 21. As a result, the retaining member 27 is configured to accommodate the rail cover 21 attached to the sliding door 20 when the sliding door 20 is moved in the X direction to open the sliding door 20. In addition, the upper end of the waste removal member 28, which is one end in the Z direction, is fixed to the retaining member 27, while the lower end of the waste removal member 28, which is the other end in the Z direction, is open. Furthermore, as shown in Figure 5, a portion of the rail 23 is housed in the retaining member 27.

[0025] <Mechanism of Operation of Cutting Devices> Figure 6 shows a schematic plan view of an example of an object W to be cut by the cutting mechanism of the cutting device 100 of the embodiment. For example, the object W shown in Figure 6 is cut by the rotating blade 61B, which is the cutting mechanism shown in Figure 3, and multiple products P and their scraps S are produced. Here, the scraps S are scattered behind the rotating blade 61B in the Y direction by a liquid ejected from the second nozzle 32, which is the scattering mechanism shown in Figure 3. At this time, the scraps S are indirectly contained in the waste collection section 11 via the second protective cover 10B shown in Figure 2, or directly contained in the waste collection section 11.

[0026] However, some of the scrap material S scattered behind the rotating blade 61B in the Y direction is not collected in the waste material storage section 11, and may accumulate on the rail cover 21 of the sliding door structure 200 shown in Figure 2. If the sliding door 20 is opened with scrap material S accumulated on the rail cover 21, the scrap material S accumulated on the rail cover 21 is also collected in the holding member 27 along with the rail cover 21. When the scrap material S, which is waste material, accumulates on the holding member 27, the movement of the sliding door 20 is obstructed. In addition, at least some of the scrap material S accumulated inside the holding member 27 may collapse and fall onto the rail 23 inside the holding member 27. In this case, if the sliding door 20 is then closed and then reopened, the movement of the sliding door 20 may be obstructed by the scrap material S located on the rail 23 inside the holding member 27.

[0027] The cutting device 100 of this embodiment includes a waste removal member 28 held by a holding member 27 so as to be in contact with the upper surface 21a of the rail cover 21 at least in part. Therefore, even if the sliding door 20 is opened with scrap material S accumulated on the rail cover 21, the waste removal member 28 can prevent the scrap material S accumulated on the rail cover 21 from entering the interior of the holding member 27. Thus, the cutting device 100 of this embodiment makes it possible to prevent the movement of the sliding door from being obstructed by the accumulation of scrap material scattered when the object to be cut is cut, compared to conventional cutting devices.

[0028] Figure 7 shows a schematic plan view of a preferred example of the waste removal member 28. As shown in Figure 7, the waste removal member 28 is configured to extend in a direction that inclins to spread from rear to front in the Y direction. In this case, when the sliding door 20 opens and the rail cover 21 is housed in the holding member 27, the waste removal member 28 can move the scrap material S accumulated on the rail cover 21 in the direction of the arrow shown in Figure 7 and house it in the waste storage section 11.

[0029] Figure 8 shows a schematic side view of a preferred example of the waste removal member 28 and the rail cover 21. As shown in Figure 8, the upper surface of the rail cover 21 and / or the waste removal member 28 are configured to extend toward the waste storage section 11, inclined downward in the Z direction relative to the Y direction (i.e., inclined toward the inside and downward of the cutting device 100 from the sliding door 20 side). In this case as well, when the rail cover 21 is housed in the holding member 27, the waste removal member 28 can move the scrap material S accumulated on the rail cover 21 in the direction of the arrow shown in Figure 7 and house it in the waste storage section 11.

[0030] The material of the waste removal member 28 is not particularly limited as long as it can block the scrap material S on the rail cover 21 when the sliding door 20 is opened, preventing the scrap material S from entering the opposite side separated by the waste removal member 28 (in this embodiment, since the holding member 27 is a rail cover housing member, this is the side of the space partitioned by the waste removal member 28 that the sliding door 20 moves to when the sliding door 20 is opened). Figure 9 shows a schematic partial side view of a preferred example of the waste removal member 28. As shown in Figure 9, the waste removal member 28 is positioned so as to be in contact with the upper surface 21a of the rail cover 21, and it is preferable that the rail cover 21 is configured so that the lower end of the waste removal member 28 in the Z direction is oriented in the X direction so that it faces the scrap material S accumulated on the rail cover 21. In this case, the lower end of the waste removal member 28 is less likely to be oriented towards the holding member 27 by the rail cover 21, so that the entry of the scrap material S accumulated on the rail cover 21 into the interior of the holding member 27 can be further suppressed. To achieve this configuration, the waste removal member 28 is preferably made of a flexible or elastic material, such as rubber or a brush, and is particularly preferably a brush.

[0031] <Second Embodiment> In the second embodiment, we will describe a case where the retaining member 27 is not a rail cover housing member configured to accommodate the rail cover 21. Figure 10 shows a schematic perspective view of the sliding door structure of a reference example cutting device that does not have a rail cover housing member on one side in the X direction (right side in Figure 10). In the reference example cutting device shown in Figure 10, scrap material S, which is an example of unwanted material, sometimes accumulated on the rail cover 21 for the reasons described above. When the sliding door 20 shown in Figure 10 was opened with scrap material S accumulated on the rail cover 21, the scrap material S accumulated on the rail cover 21 sometimes fell onto the rail 23 on the direction of travel of the sliding door 20, for example, as shown in the schematic perspective view of Figure 11. In this case, the movement of the sliding door 20 was sometimes obstructed by the scrap material S located on the rail 23 on the direction of travel of the rail cover 21.

[0032] Therefore, the cutting device of the second embodiment, as shown in the schematic perspective view of Figure 12, for example, is equipped with a holding member 27 such as a fixing bracket that can hold the waste removal member 28, although it is not configured to accommodate the rail cover 21. In the cutting device of the second embodiment, even if scrap material S, which is an example of waste, accumulates on the rail cover 21, the waste removal member 28, which is fixed to the holding member 27 and held, can block the scrap material S accumulated on the rail cover 21 and allow it to be stored in the waste storage section 11, as shown in the schematic perspective view of Figure 13, for example. The holding member 27 of the second embodiment has a surface extending rearward in the Y direction above the holding member 27 in order to fix the waste removal member 28, and a gap large enough for the rail cover 21 to pass through is provided below the surface extending rearward in the Y direction. In the second embodiment, the retaining member 27 has a surface extending in the X direction, formed by joining one side and a part of the front side of a surface extending in the Y direction to the rear in the Y direction, and the lower end of the surface extending in the X direction is fixed to a part of the sliding door structure 200.

[0033] Furthermore, in the cutting device of the second embodiment, from the viewpoint of preventing unwanted materials such as scraps accumulated on the rail cover 21 from falling onto the rail 23 located in the direction of travel of the sliding door 20 (the direction in which the sliding door opens) when the sliding door 20 is opened, it is preferable that the holding member 27 be provided above the rail cover 21 and near the position where the sliding door 20 begins to slide when the sliding door 20 is opened (the sliding start position).

[0034] Furthermore, in the cutting device of the second embodiment, it is preferable that part or all of the lower end of the waste removal member 28 is positioned to contact the upper surface 21a of the rail cover 21. In this case, when the sliding door 20 is opened, it is possible to prevent waste materials such as scraps S accumulated on the rail cover 21 from passing the waste removal member 28 in the direction of travel of the sliding door 20.

[0035] <Note> (Disclosure 1) Disclosure 1 is a cutting device comprising: a cutting mechanism configured to cut an object to be cut; a scattering mechanism configured to scatter waste generated by cutting the object to be cut by the cutting mechanism to the rear in a first direction of the cutting mechanism; and a sliding door structure located behind the cutting mechanism in the first direction, wherein the sliding door structure comprises: a sliding door; a rail configured to allow linear movement of the sliding door in a second direction different from the first direction; a rail cover configured to cover the rail; a waste removal member configured to remove the waste on the rail cover; and a holding member configured to hold the waste removal member by bringing at least a part of the waste removal member into contact with the upper surface of the rail cover.

[0036] (Disclosure 2) Disclosure 2 is a cutting device according to Disclosure 1, wherein the retaining member is a rail cover housing member configured to accommodate the rail cover, and the waste removal member is configured to close at least a portion of the gap between the rail cover and the rail cover housing member.

[0037] (Disclosure 3) Disclosure 3 is a cutting device according to disclosure 1 or 2, further comprising a roller located in front of the sliding door in the first direction, and a connecting member connecting the sliding door and the roller, wherein the roller is located on the rail, and the movement of the roller on the rail makes the sliding door movable.

[0038] (Disclosure 4) Disclosure 4 is a cutting device according to any one of disclosures 1 to 3, wherein one end of the waste removal member is fixed to the holding member and the other end of the waste removal member is open.

[0039] (Disclosure 5) Disclosure 5 is the cutting device of Disclosure 4, wherein the other end of the waste removal member is directed in the second direction by the rail cover.

[0040] (Disclosure 6) Disclosure 6 is a cutting device according to disclosure 4 or 5, wherein the waste removal member is configured to extend in a direction inclined with respect to the first direction.

[0041] (Disclosure 7) Disclosure 7 is a cutting device according to any one of disclosures 1 to 6, further comprising a waste material storage section between the cutting mechanism and the sliding door structure.

[0042] (Disclosure 8) Disclosure 8 is the cutting device of Disclosure 7, wherein the upper surface of the cover extends so as to be inclined toward the waste material storage section with respect to the first direction.

[0043] (Disclosure 9) Disclosure 9 is a cutting device according to disclosure 7 or 8, wherein the waste removal member extends so as to be inclined toward the waste containment section with respect to the first direction.

[0044] (Disclosure 10) Disclosure 10 is a cutting device according to any one of disclosures 1 to 9, wherein the waste removal member is a brush.

[0045] As described above, the embodiments have been explained, but it has been planned from the outset that the configurations of each of the embodiments described above may be combined as appropriate.

[0046] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope equivalent to the claims are intended. [Explanation of Symbols]

[0047] 2B Cutting table, 3B Cutting jig, 4B Moving mechanism, 5B Rotating mechanism, 6B Spindle, 10 Protective cover, 10A First protective cover, 10A1 First bellows element, 10A2 First cover element, 10B Second protective cover, 10B1 Second bellows element, 10B2 Second cover element, 11 Waste containment section, 12 Fluid supply mechanism, 13 Receiving plate member, 13a Discharge end, 13M Discharge groove, 14 Sliding member, 14a Tip, 15 Waste discharge section, 16 Fluid injection mechanism, 20 Sliding door, 21 Rail cover, 21a Top surface, 21b Side surface, 23 Rail, 24 Connecting member, 25 Roller, 26 Bottom member, 27 Holding member, 28 Waste removal member, 31 First nozzle, 32 Second nozzle, 33 Third nozzle, 41 Ball screw mechanism, 42 drive source, 43 slider, 44 fixed frame, 121 nozzle, 122 supply pipe, 161 spray nozzle, 162 supply pipe, 61B rotating blade, 100 cutting device, 200 sliding door structure.

Claims

1. A cutting mechanism configured to cut an object to be cut, A scattering mechanism is configured to scatter unwanted material generated by cutting the object to be cut by the cutting mechanism toward the rear in the first direction of the cutting mechanism, The cutting mechanism comprises a sliding door structure located behind the first direction, The aforementioned sliding door structure is Sliding door, A rail configured to allow linear movement of the sliding door in a second direction different from the first direction, A rail cover configured to cover the aforementioned rail, A waste removal member configured to remove the waste on the rail cover, A cutting device comprising a holding member configured to hold the waste removal member by bringing at least a portion of the waste removal member into contact with the upper surface of the rail cover.

2. The retaining member is a rail cover housing member configured to accommodate the rail cover, The cutting device according to claim 1, wherein the waste removal member is configured to block at least a portion of the gap between the rail cover and the rail cover housing member.

3. A roller located in front of the sliding door in the first direction, The system further comprises a connecting member that connects the sliding door and the roller, The roller is located on the rail, The cutting device according to claim 1, wherein the sliding door is made movable by the movement of the roller on the rail.

4. One end of the waste removal member is fixed to the holding member. The cutting device according to claim 1, wherein the other end of the waste removal member is left open.

5. The cutting device according to claim 4, wherein the other end of the waste removal member is directed in the second direction by the rail cover.

6. The cutting device according to claim 4, wherein the waste removal member is configured to extend in a direction inclined with respect to the first direction.

7. The cutting device according to any one of claims 1 to 6, further comprising a waste material storage section between the cutting mechanism and the sliding door structure.

8. The cutting device according to claim 7, wherein the upper surface of the rail cover extends so as to be inclined toward the waste material storage section with respect to the first direction.

9. The cutting device according to claim 7, wherein the waste removal member extends toward the waste storage portion so as to be inclined with respect to the first direction.

10. The cutting device according to claim 1, wherein the waste removal member is a brush.

Images