Rotary die cutter

Abstract

To provide a rotary die cutter that allows for easy replacement of cleaning components. [Solution] A rotary die cutter comprising a base, a main frame having a first vertical frame and a second vertical frame extending upward from the base, a first roll and a second roll arranged vertically with both ends supported by the first and second vertical frame, respectively, a cleaning member for cleaning the first or second roll, and a slide mechanism for moving the cleaning member in a direction along the axial direction of the second roll. The slide mechanism allows the cleaning member to move between an operational position where it can contact the first or second roll and a replacement position located outside the main frame.

Description

Technical Field

[0001] The present invention relates to a rotary die cutter.

Background Art

[0002] Conventionally, a rotary die cutter is known that includes a die cut roll and an anvil roll that are rotatably supported around mutually parallel axes, and cuts a sheet-like workpiece fed between the die cut roll and the anvil roll. Patent Document 1 discloses a roll cleaning device for a rotary die cutter that cleans the outer peripheral surface of the anvil roll.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the roll cleaning device described in Patent Document 1 is configured to be fixed to a frame or the like. For this reason, the replacement work of the cleaning member has to be performed inside the facility where the rotary die cutter is installed, which has a problem in workability.

[0005] An object of the present invention is to provide a rotary die cutter that allows easy replacement of a cleaning member.

Means for Solving the Problems

[0006] (1) A rotary die cutter comprising: a base; a main frame having a first vertical frame portion and a second vertical frame portion extending upward from the base; a first roll and a second roll arranged vertically, with both ends supported by the first vertical frame portion and the second vertical frame portion, respectively; a cleaning member for cleaning the first roll or the second roll; and a sliding mechanism for moving the cleaning member in a direction along the axial direction of the second roll, wherein the sliding mechanism is capable of moving the cleaning member between an operational position capable of contacting the first roll or the second roll and a replacement position located outside the main frame.

[0007] (2) In (1), the slide mechanism may include a movable frame that supports the cleaning member and is movable relative to the main body frame, and the first vertical frame has two support columns that extend in the vertical direction, and the cleaning member may be moved in and out through the two support columns by moving the movable frame, which is supporting the cleaning member, in the axial direction of the second roll.

[0008] (3) In (1) or (2), the cleaning member may be configured to include a cleaning member moving mechanism that moves the cleaning member along the radial direction of the first roll or the second roll to be contacted.

[0009] (4) In (1) or (2), plate-shaped housings that extend radially in the direction of the first roll are mounted on the support shaft portions at both ends of the first roll via bearings, and plate-shaped housings that extend radially in the direction of the second roll are mounted on the support shaft portions at both ends of the second roll via bearings, and the main frame has a roll support portion that supports the housing of the second roll from below, and the main frame may be configured to include a roll movement mechanism that moves the second roll up and down between a position supported by the roll support portion and a position in contact with the first roll.

[0010] (5)(4) may be configured to include a cleaning member moving mechanism that moves the cleaning member up and down.

[0011] In (6)(2), plate-shaped housings that extend radially in the direction of the first roll are mounted on the support shafts at both ends of the first roll via bearings, and plate-shaped housings that extend radially in the direction of the second roll are mounted on the support shafts at both ends of the second roll via bearings, and the movable frame is positioned below the second roll, and the configuration may include a roll movement mechanism that moves the second roll up and down between a position where it is supported by the movable frame and a position where it is in contact with the first roll.

[0012] (7)(6) may also be configured to include a cleaning member moving mechanism for moving the cleaning member up and down. [Effects of the Invention]

[0013] According to one aspect of the present invention, a rotary die cutter is provided that allows for easy replacement of the cleaning member. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 is a side view of the rotary die cutter 100 according to the first embodiment. [Figure 2] Figure 2 is a cross-sectional view taken along the line II-II in Figure 1. [Figure 3A] Figure 3A is an explanatory diagram showing the process of replacing the cleaning member 7 in the rotary die cutter 100 of the embodiment. [Figure 3B] Figure 3B is an explanatory diagram showing the process of replacing the cleaning member 7 in the rotary die cutter 100 of the embodiment. [Figure 4] Figure 4 is a side view of the rotary die cutter 200 according to the second embodiment. [Figure 5] Figure 5 is a cross-sectional view along the VV line in Figure 4. [Figure 6A]FIG. 6A is an explanatory view showing the replacement process of the cleaning member 7 in the rotary die cutter 200 of the embodiment. [Figure 6B] FIG. 6B is an explanatory view showing the replacement process of the cleaning member 7 in the rotary die cutter 200 of the embodiment. [Figure 7] FIG. 7 is a side view of the rotary die cutter 300 according to the third embodiment. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7. [Figure 9A] FIG. 9A is an explanatory view showing the replacement process of the anvil roll 3 and the cleaning member 7 in the rotary die cutter 300 of the embodiment. [Figure 9B] FIG. 9B is an explanatory view showing the replacement process of the anvil roll 3 and the cleaning member 7 in the rotary die cutter 300 of the embodiment. [Figure 10] FIG. 10 is a side view of the rotary die cutter 400 according to the fourth embodiment. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 10. [Figure 12] FIG. 12 is a side view of the rotary die cutter 500 according to the fifth embodiment. [Figure 13] FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. [Modes for Carrying Out the Invention]

[0015] (First Embodiment) FIG. 1 is a side view of the rotary die cutter according to the first embodiment. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1.

[0016] The rotary die cutter 100 of the present embodiment includes a die cut roll (first roll) 2, an anvil roll (second roll) 3, a movable frame (slide mechanism) 4, a main body frame 5, a first cylinder 6A, a second cylinder 6B, and a cleaning member 7. In this specification, the direction parallel to the axis L2 of the die-cutting roll 2 or the axis L3 of the anvil roll 3, as described later, may be simply referred to as the axial direction. In this embodiment, the die-cutting roll 2 is positioned at the top of the main frame 5 and the anvil roll 3 is positioned at the bottom of the main frame 5, but the positions of the die-cutting roll 2 and the anvil roll 3 may be swapped.

[0017] The die-cutting roll 2 is a cylindrical member centered on axis L2. The die-cutting roll 2 has a large-diameter processing section 2A in its axial center, and small-diameter support shaft sections 2B and 2C extending from the processing section 2A to both sides in the axial direction. The die-cutting roll 2 has annular bearer sections 2D and 2E at both ends of the processing section 2A in the axial direction, projecting radially outward from the processing section 2A.

[0018] In the die-cut roll 2, the inner circumference of the processing section 2A and the support shaft sections 2B and 2C are single members made of steel or the like, and a cylindrical member made of cemented carbide or the like, which is harder than steel, is fitted to the outer circumference of the processing section 2A. In this embodiment, one or more cylindrical members are arranged in the axial direction between the bearer sections 2D and 2E. Cutting edges 2a are formed on the two cylindrical members located at both ends. The central cylindrical member, which does not have cutting edges, is made of steel or cemented carbide.

[0019] Housings 20A and 20B are mounted on the support shafts 2B and 2C of the die-cutting roll 2. The housings 20A and 20B are rectangular plate-like members and have circular through-holes that penetrate the plate surface in the axial direction. The housings 20A and 20B hold bearings made of ball bearings on the inner circumference of their respective through-holes. The support shafts 2B and 2C are inserted into the inner rings of the bearings.

[0020] The die-cutting roll 2 is mounted on the main frame 5 with its axis L2 horizontal. The processing section 2A of the die-cutting roll 2 is located in the center of the main frame 5 in the longitudinal direction (left-right direction in Figure 1), and housings 20A and 20B are fixed to both ends of the main frame 5 in the longitudinal direction. The support shaft section 2C of the die-cutting roll 2 is connected to a rotary drive section (not shown).

[0021] The anvil roll 3 is a cylindrical member centered on axis L3. The anvil roll 3 has a large-diameter processing section 3A in the axial center. The anvil roll 3 has support shaft sections 3B and 3C extending axially from the processing section 3A on both sides.

[0022] Housings 30A and 30B are mounted on the support shafts 3B and 3C of the anvil roll 3. The housings 30A and 30B are rectangular plate-shaped members with circular through holes that penetrate the plate surface in the axial direction. The housings 30A and 30B hold bearings made of ball bearings on the inner circumference of their respective through holes. The support shafts 3B and 3C are inserted into the inner rings of the bearings.

[0023] The anvil roll 3 is installed on the main frame 5 with its axis L3 horizontal. The processing section 3A of the anvil roll 3 is located in the center of the main frame 5 in the longitudinal direction, and housings 30A and 30B are fixed to both ends of the main frame 5 in the longitudinal direction.

[0024] The main frame 5 comprises a rectangular base 50 in plan view, a first vertical frame section 51 and a second vertical frame section 52 extending upward from both ends of the base 50 in the longitudinal direction (axial direction; parallel to axes L2 and L3), and a top plate section 53 spanning between the upper end of the first vertical frame section 51 and the upper end of the second vertical frame section 52.

[0025] The first cylinder 6A and the second cylinder 6B are fixed to the inside of the first vertical frame portion 51 and the second vertical frame portion 52 on the upper surface of the base 50. The first cylinder 6A and the second cylinder 6B are a cleaning member moving mechanism that moves the cleaning member 7 up and down. The first cylinder 6A and the second cylinder 6B are, for example, hydraulic cylinders or air cylinders. Details of the operation of the cleaning member moving mechanism will be described later.

[0026] The first vertical frame section 51 has two support columns 51a and 51b erected at two corners located on one of the short sides of the base 50. In Figure 1, support column 51b is positioned towards the front, and support column 51a is positioned behind support column 51b. The second vertical frame section 52 is located at the corner of the short side of the base 50 opposite to the first vertical frame section 51. The second vertical frame section 52 has two support columns 52a and 52b. The top plate portion 53 is fixed to the upper end surfaces of the first vertical frame portion 51 and the second vertical frame portion 52. In addition to the first vertical frame portion 51, the second vertical frame portion 52, and the top plate portion 53, the main frame 5 may also include reinforcing beams, etc.

[0027] Housings 20A and 20B of the die-cut roll 2 are fixed to the upper parts of the first vertical frame section 51 and the second vertical frame section 52. Housing 20A is positioned between the support columns 51a and 51b. Housing 20A is fixed to the support columns 51a and 51b, for example, by screw fastening. Housing 20B, on the opposite side of housing 20A, is positioned between the support columns 52a and 52b. Housing 20B is fixed to the support columns 52a and 52b, for example, by screw fastening.

[0028] The housings 30A and 30B of the anvil roll 3 are fixed to the center of the first vertical frame section 51 and the second vertical frame section 52 in the height direction. Housing 30A is fixed between the support columns 51a and 51b, for example by screw fastening. Housing 30B is fixed between the support columns 52a and 52b, for example by screw fastening.

[0029] The movable frame 4 is positioned vertically between the anvil roll 3 of the main frame 5 and the base 50. The movable frame 4 is attached to the main frame 5. As shown in Figure 2, the movable frame 4 comprises a support plate 4A and two slide rails 4B and 4C attached to both sides of the support plate 4A in the width direction. The slide rail 4B is fixed to the support columns 51a and 52a, and the slide rail 4C is fixed to the support columns 51b and 52b.

[0030] The support plate 4A is a rectangular plate-like member that extends horizontally. Two through holes 14a and 14b are provided in the support plate 4A, penetrating it in the vertical direction (thickness direction). The through holes 14a and 14b are arranged side by side in the axial direction in a plan view. The through holes 14a and 14b are two-stage holes consisting of two holes with different diameters. The upper diameter of the through hole 14a and 14b is larger than the diameter of the lower diameter, and the two-stage holes have an upward-facing seating surface inside.

[0031] A cleaning member 7 is installed on the support plate 4A of the movable frame 4. The cleaning member 7 comprises a rod-shaped wiper portion 7A extending along the axial direction, and two rod portions 7B and 7C extending downward from two locations on the lower surface of the wiper portion 7A.

[0032] The wiper section 7A has a wiping member such as a sponge, nonwoven fabric, or woven fabric at the part that contacts the anvil roll 3. The wiper section 7A may consist of the wiping member alone, or it may be configured to further include a support member that supports the wiping member. The rod sections 7B and 7C are stepped rods with a shape in which two cylinders of different diameters are connected. The rod sections 7B and 7C have a larger diameter at the base end that connects to the wiper section 7A and a smaller diameter at the tip end. The cleaning member 7 is supported on the support plate 4A with the rod sections 7B and 7C extending from the lower surface of the cleaning member 7 inserted into the through holes 14a and 14b of the support plate 4A.

[0033] The first cylinder 6A, positioned on the base 50, is located below the rod portion 7B of the cleaning member 7. The second cylinder 6B is located below the rod portion 7C. More specifically, the first cylinder 6A is equipped with a plunger 16A that moves back and forth in the vertical direction, and the plunger 16A can enter the through hole 14a of the support plate 4A from below. The second cylinder 6B is equipped with a plunger 16B that moves back and forth in the vertical direction, and the plunger 16B can enter the through hole 14b of the support plate 4A from below.

[0034] The plunger 16A of the first cylinder 6A pushes the rod portion 7B from below, and the plunger 16B of the second cylinder 6B pushes the rod portion 7C from below, thereby pushing the cleaning member 7 upward and bringing the wiper portion 7A of the cleaning member 7 into contact with the surface of the anvil roll 3. In addition, by retracting the plungers 16A and 16B downward, the cleaning member 7 and the anvil roll 3 can be separated.

[0035] The slide rails 4B and 4C are, for example, three-stage slide rails with three rails connected together. One of the three rails is fixed to the main frame 5, and the other frame is fixed to the support plate 4A. With this configuration, the movable frame 4 can pull out the entire support plate 4A to the outside of the main frame 5. The rotary die cutter 100 may be provided with a fixing mechanism to fix the support plate 4A in a predetermined position.

[0036] In the rotary die cutter 100 of this embodiment, which has the above configuration, the cleaning member 7 can be removed from the main frame 5 and replaced without removing the main frame 5 from the equipment. The following explanation will be given with reference to Figures 3A and 3B. Figures 3A and 3B are explanatory diagrams showing the process of replacing the cleaning member 7 in the rotary die cutter 100 of this embodiment.

[0037] In Figure 3A, the cleaning member 7 is in a movable position that allows it to contact the anvil roll 3. In the rotary die cutter 100, to replace the cleaning member 7, first, as shown in Figure 3A, the first cylinder 6A and the second cylinder 6B are driven to lower the plungers 16A and 16B. This causes the cleaning member 7, whose rod portions 7B and 7C were supported by the plungers 16A and 16B, to descend. The contact between the wiper portion 7A and the anvil roll 3 is released.

[0038] Next, as shown in Figure 3B, the movable frame 4 is pulled out to the outside of the main frame 5. This allows the cleaning member 7 to be pulled out to the outside of the main frame 5 along with the movable frame 4. The pulled-out position is the replacement position for the cleaning member 7 located outside the main frame 5. The cleaning member 7 can be removed from the movable frame 4 by pulling out the rod portions 7B and 7C of the cleaning member 7 through the through holes 14a and 14b of the support plate 4A. After that, the replacement cleaning member 7 is attached to the support plate 4A, and the movable frame 4 is pushed back into the main frame 5 to complete the replacement.

[0039] As described in detail above, the rotary die cutter 100 of this embodiment is equipped with a movable frame 4, which is a sliding mechanism that can move in and out of the main frame 5. This allows the cleaning member 7 supported by the movable frame 4 to be easily pulled out to the outside of the main frame 5. As a result, the replacement of the cleaning member 7 can be performed outside the equipment where the rotary die cutter is installed, enabling safe and quick replacement with simple operations.

[0040] (Second Embodiment) Next, the rotary die cutter 200 of the second embodiment will be described. In the rotary die cutter of this embodiment, components common to the previous embodiment are denoted by the same reference numerals, and detailed descriptions are omitted.

[0041] Figure 4 is a side view of the rotary die cutter 200 of the second embodiment. Figure 5 is a cross-sectional view along the VV line in Figure 4. The rotary die cutter 200 shown in Figures 4 and 5 includes a die-cutting roll (first roll) 2, an anvil roll (second roll) 3, a movable frame (slide mechanism) 4, a main frame 5, a first cylinder 6A, a second cylinder 6B, a cleaning member 7, a third cylinder 6C, a fourth cylinder 6D, and housing receiving blocks (roll support parts) 51c, 52c.

[0042] The rotary die cutter 200 of this embodiment is characterized in that it has a configuration in which the anvil roll 3 is movable in the vertical direction, by having a third cylinder 6C, a fourth cylinder 6D, and housing support blocks 51c, 52c.

[0043] The third cylinder 6C and the fourth cylinder 6D are fixed to both ends of the base 50 in the axial direction (longitudinal direction). The third cylinder 6C is located between the support columns 51a and 51b and directly below the housing 30A of the anvil roll 3. The fourth cylinder 6D is located between the support columns 52a and 52b and directly below the housing 30B of the anvil roll 3.

[0044] The third cylinder 6C and the fourth cylinder 6D are roll movement mechanisms that move the anvil roll 3 up and down. The third cylinder 6C and the fourth cylinder 6D are, for example, hydraulic cylinders or air cylinders. The third cylinder 6C has a plunger 16C that moves back and forth in the vertical direction. The fourth cylinder 6D has a plunger 16D that moves back and forth in the vertical direction.

[0045] The main frame 5 has a plate-shaped housing support block 51c that spans between the support columns 51a and 51b, and a plate-shaped housing support block 52c that spans between the support columns 52a and 52b. The housing support block 51c is fixed below the housing 30A. The housing support block 52c is fixed below the housing 30B.

[0046] The housing support block 51c has a two-tiered through hole 51d that penetrates the housing support block 51c in the vertical direction. The housing support block 52c has a two-tiered through hole 52d that penetrates the housing support block 52c in the vertical direction. Both the through holes 51d and 52d are two-tiered holes in which the diameter of the upper part is larger than the diameter of the lower part and has an upward-facing seating surface inside.

[0047] In this embodiment, rod sections 31A and 31B extend downward from the lower surfaces of the housings 30A and 30B of the anvil roll 3, respectively. Both rod sections 31A and 31B are stepped rods with a shape consisting of two cylinders of different diameters joined together. The base end of the rod sections 31A and 31B, which is connected to the housings 30A and 30B, has a larger diameter, while the tip end has a smaller diameter. The rod sections 31A and 31B may or may not be connected to the housings 30A and 30B.

[0048] Housing 30A is supported on housing support block 51c with a rod portion 31A extending from the lower surface of housing 30A inserted into a through hole 51d of housing support block 51c. Housing 30B is supported on housing support block 52c with a rod portion 31B extending from the lower surface of housing 30B inserted into a through hole 52d of housing support block 52c.

[0049] The central axis of the plunger 16C of the third cylinder 6C coincides with the central axis of the rod portion 31A. The central axis of the plunger 16D of the fourth cylinder 6D coincides with the central axis of the rod portion 31B. The plunger 16C of the third cylinder 6C pushes the rod portion 31A of the housing 30A from below, and the plunger 16D of the fourth cylinder 6D pushes the rod portion 31B of the housing 30B from below, thereby pushing the anvil roll 3 upward and positioning it in a machining position where it contacts the die-cut roll 2. Furthermore, by retracting the plungers 16C and 16D downward, the anvil roll 3 can be lowered and separated from the die-cut roll 2.

[0050] The configuration of the movable frame 4, cleaning member 7, first cylinder 6A, and second cylinder 6B in the rotary die cutter 200 of this embodiment is the same as in the first embodiment. In the rotary die cutter 200 as well, by operating the first cylinder 6A and the second cylinder 6B to push up the cleaning member 7, the wiper portion 7A of the cleaning member 7 can be pressed against the outer surface of the anvil roll 3.

[0051] In the rotary die cutter 200 of this embodiment, which has the above configuration, as described above, the anvil roll 3 can be raised and pressed against the die-cutting roll 2 when processing the workpiece. Furthermore, by pressing the cleaning member 7 against the anvil roll 3 in the raised position, the outer surface of the anvil roll 3 can be wiped clean during processing.

[0052] Furthermore, in the rotary die cutter 200 of this embodiment, similar to the first embodiment, the cleaning member 7 can be removed from the main frame 5 and replaced without removing the main frame 5 from the equipment. The following explanation will be given with reference to Figures 6A and 6B. Figures 6A and 6B are explanatory diagrams showing the process of replacing the cleaning member 7 in the rotary die cutter 200 of this embodiment.

[0053] In the rotary die cutter 200, to replace the cleaning member 7, first, as shown in Figure 6A, the first cylinder 6A and the second cylinder 6B are driven to lower the plungers 16A and 16B. As a result, the cleaning member 7, which was supported by the rod portions 7B and 7C by the plungers 16A and 16B, is lowered, and the contact between the wiper portion 7A and the anvil roll 3 is released.

[0054] Next, as shown in Figure 6A, the third cylinder 6C and the fourth cylinder 6D are driven to lower the plungers 16C and 16D. This causes the housings 30A and 30B, which are supported by the plungers 16C and 16D, to lower and be placed on the housing support blocks 51c and 52c. This releases the contact between the anvil roll 3 and the die-cutting roll 2.

[0055] In the above process, the plunger 16C of the third cylinder 6C and the plunger 16D of the fourth cylinder 6D are pulled down to below the movable frame 4. This prevents interference between the plungers 16C and 16D and the movable frame 4 when it is slid in the axial direction.

[0056] Next, as shown in Figure 6B, the movable frame 4 is pulled out to the outside of the main frame 5. This allows the cleaning member 7 to be pulled out to the outside of the main frame 5 along with the support plate 4A of the movable frame 4. The cleaning member 7 can be removed from the movable frame 4 by pulling out the rod portions 7B and 7C of the cleaning member 7 through the through holes 14a and 14b of the support plate 4A. After that, the replacement cleaning member 7 is attached to the support plate 4A, and the movable frame 4 is pushed back into the main frame 5 to complete the replacement.

[0057] As described in detail above, according to the rotary die cutter 200 of this embodiment, even when a roll movement mechanism is provided to move the anvil roll 3 in the vertical direction, the cleaning member 7 supported by the movable frame 4 can be easily pulled out to the outside of the main frame 5 by providing a movable frame 4, which is a sliding mechanism that can move between an operating position inside and outside the main frame 5 and a replacement position. As a result, the replacement work of the cleaning member 7 can be performed outside the equipment in which the rotary die cutter is installed, so that it can be replaced safely and quickly with a simple operation.

[0058] (Third embodiment) Next, the rotary die cutter 300 of the third embodiment will be described. In the rotary die cutter of this embodiment, components common to the first and second embodiments are denoted by the same reference numerals, and detailed descriptions are omitted.

[0059] Figure 7 is a side view of the rotary die cutter 300 according to the third embodiment. Figure 8 is a cross-sectional view along the line VIII-VIII in Figure 7. The rotary die cutter 300 shown in Figures 7 and 8 includes a die-cutting roll (first roll) 2, an anvil roll (second roll) 3, a movable frame (slide mechanism) 4, a main frame 5, a first cylinder 6A, a second cylinder 6B, a cleaning member 7, a third cylinder 6C, a fourth cylinder 6D, and housing support blocks 40A and 40B.

[0060] The rotary die cutter 300 of this embodiment is characterized by being equipped with a third cylinder 6C and a fourth cylinder 6D, and having housing support blocks 40A and 40B provided on the movable frame 4, thereby enabling the anvil roll 3 to be placed on the movable frame 4.

[0061] The movable frame 4 comprises a support plate 4A, slide rails 4B and 4C, and housing support blocks 40A and 40B fixed to the upper surfaces of both ends of the support plate 4A in the axial direction (left-right direction in Figure 7).

[0062] The housing support block 40A is located between the support columns 51a and 51b and below the housing 30A. The housing support block 40B is located between the support columns 52a and 52b and below the housing 30B.

[0063] The housing support blocks 40A and 40B extend upward from the upper surface of the support plate 4A. When viewed from the axial direction, the housing support blocks 40A and 40B have approximately the same width as the housings 30A and 30B. The housing support block 40A is capable of supporting the housing 30A on its upper surface. The housing support block 40B is capable of supporting the housing 30B on its upper surface.

[0064] The housing support block 40A and the support plate 4A have a double-layered through hole 14c that penetrates both the housing support block 40A and the support plate 4A in the vertical direction. The housing support block 40B and the support plate 4A have a double-layered through hole 14d that penetrates both the housing support block 40B and the support plate 4A in the vertical direction. Both the through holes 14c and 14d are double-layered holes in which the diameter of the upper portion is larger than the diameter of the lower portion and has an upward-facing seating surface inside.

[0065] A relay rod 41A is housed in the through hole 14c. A relay rod 41B is housed in the through hole 14d. Relay rods 41A and 41B are stepped rods consisting of two cylinders of different diameters connected vertically. Relay rods 41A and 41B have a larger diameter at the upper end located on the housing 30A and 30B side, and a smaller diameter at the tip.

[0066] The central axis of the plunger 16C of the third cylinder 6C coincides with the central axis of the intermediate rod 41A. The central axis of the plunger 16D of the fourth cylinder 6D coincides with the central axis of the intermediate rod 41B. By pushing the intermediate rod 41A from below with the plunger 16C of the third cylinder 6C and pushing the intermediate rod 41B from below with the plunger 16D of the fourth cylinder 6D, the anvil roll 3 can be pushed upward and positioned in a machining location where it contacts the die-cutting roll 2. Furthermore, by retracting the plungers 16C and 16D downward, the anvil roll 3 can be lowered and separated from the die-cutting roll 2.

[0067] The configuration of the cleaning member 7, the first cylinder 6A, and the second cylinder 6B in the rotary die cutter 300 of this embodiment is the same as in the first embodiment. In the rotary die cutter 300 as well, by operating the first cylinder 6A and the second cylinder 6B to push up the cleaning member 7, the wiper portion 7A of the cleaning member 7 can be pressed against the outer surface of the anvil roll 3.

[0068] In the rotary die cutter 300 of this embodiment, which has the above configuration, as described above, the anvil roll 3 can be raised and pressed against the die-cutting roll 2 when processing a workpiece. Furthermore, by pressing the cleaning member 7 against the anvil roll 3 in the raised position, the outer surface of the anvil roll 3 can be wiped clean during processing.

[0069] Furthermore, in the rotary die cutter 300 of this embodiment, the anvil roll 3 and cleaning member 7 can be removed from the main frame 5 and replaced simultaneously without removing the main frame 5 from the equipment. The following explanation will be given with reference to Figures 9A and 9B. Figures 9A and 9B are explanatory diagrams showing the replacement process of the anvil roll 3 and cleaning member 7 in the rotary die cutter 300 of this embodiment.

[0070] In the rotary die cutter 300, to remove the die-cutting roll 2 and the anvil roll 3, first, as shown in Figure 9A, the first cylinder 6A and the second cylinder 6B are driven to lower the plungers 16A and 16B. This causes the cleaning member 7, whose rod portions 7B and 7C were supported by the plungers 16A and 16B, to descend, and the contact between the wiper portion 7A and the anvil roll 3 is released.

[0071] Next, as shown in Figure 9A, the third cylinder 6C and the fourth cylinder 6D are driven to lower the plungers 16C and 16D. This causes the intermediate rods 41A and 41B, which are supported by the plungers 16C and 16D, to lower, and the housings 30A and 30B, which are supported by the intermediate rods 41A and 41B, also to lower. The housings 30A and 30B are then placed on the housing support blocks 40A and 40B, respectively. This releases the contact between the anvil roll 3 and the die-cut roll 2.

[0072] Next, as shown in Figure 9B, the movable frame 4 is pulled out to the outside of the main frame 5. This allows the cleaning member 7 and the anvil roll 3 to be pulled out to the outside of the main frame 5 along with the support plate 4A of the movable frame 4. The anvil roll 3 can be removed from the movable frame 4 by lifting it upwards. The cleaning member 7 can be removed from the movable frame 4 by pulling out the rod portions 7B and 7C of the cleaning member 7 through the through holes 14a and 14b of the support plate 4A. After that, the replacement cleaning member 7 is attached to the support plate 4A, the replacement anvil roll 3 is placed on the housing receiving blocks 40A and 40B, and then the movable frame 4 is pushed into the inside of the main frame 5 to complete the replacement.

[0073] As described in detail above, the rotary die cutter 300 of this embodiment is equipped with a movable frame 4 that can support the cleaning member 7 and on which the anvil roll 3 can be placed. This allows the anvil roll 3 and cleaning member 7, supported by the movable frame 4, to be easily pulled out to the outside of the main frame 5. As a result, the replacement of the anvil roll 3 and cleaning member 7 can be performed outside the equipment where the rotary die cutter is installed, enabling safe and rapid replacement with simple operations.

[0074] (Fourth Embodiment) Next, the rotary die cutter 400 of the fourth embodiment will be described. In the rotary die cutter of this embodiment, components common to the first to third embodiments are denoted by the same reference numerals, and detailed descriptions are omitted.

[0075] Figure 10 is a side view of the rotary die cutter 400 according to the fourth embodiment. Figure 11 is a cross-sectional view along the line XI-XI in Figure 10. The rotary die cutter 400 shown in Figures 10 and 11 is configured to include a cleaning member 17 in place of the cleaning member 7 of the rotary die cutter 200 of the second embodiment. The cleaning member 17 can also be applied to the rotary die cutter of the first or third embodiment.

[0076] The cleaning member 17 includes a cleaning roll 17a that can rotate around an axis L4 parallel to the axis L3, a support portion 17b that rotatably supports the cleaning roll 17a, and rod portions 7B and 7C that extend downward from the lower surface of the support portion 17b. The cleaning roll 17a is made of, for example, a sponge.

[0077] Similar to the previous embodiment, the cleaning member 17 can be moved upward by the first cylinder 6A and the second cylinder 6B, thereby pressing the cleaning roll 17a against the outer surface of the anvil roll 3. The cleaning roll 17a rotates together with the anvil roll 3, thereby wiping away processing debris adhering to the outer surface of the anvil roll 3.

[0078] (Fifth embodiment) Next, the rotary die cutter 500 of the fifth embodiment will be described. In the rotary die cutter of this embodiment, the same reference numerals are used for components that are common to the first to fourth embodiments, and detailed descriptions are omitted.

[0079] Figure 12 is a side view of the rotary die cutter 500 according to the fifth embodiment. Figure 13 is a cross-sectional view along the line XIII-XIII in Figure 12. The rotary die cutter 500 shown in Figures 12 and 13 is configured to include a cleaning member 27 in place of the cleaning member 7 of the rotary die cutter 200 of the second embodiment. The cleaning member 27 can also be applied to the rotary die cutter of the first or third embodiment.

[0080] The cleaning member 27 includes a scraper 27a made of a rectangular thin plate member, a leaf spring 27b connected to one of the long sides of the scraper 27a, a support 27c that supports the end of the leaf spring 27b opposite to the scraper 27a, a support plate 27d that supports the support plate 27c from below, and rod portions 7B and 7C that extend downward from the lower surface of the support plate 27d.

[0081] The cleaning member 27 can be pressed against the anvil roll 3 by moving it upward using the first cylinder 6A and the second cylinder 6B, similar to the previous embodiment. The cleaning member 27 removes processing debris adhering to the outer surface of the anvil roll 3 by sliding the tip of the scraper 27a along the outer surface of the rotating anvil roll 3. [Explanation of Symbols]

[0082] 2…Die-cut roll (1st roll) 2a...cutting blade 2A,3A…Processing section 2B,2C,3B,3C…Support shaft part 2D, 2E... Bearer section 3…Anvil Roll (Second Roll) 4…Movable frame (sliding mechanism) 4A…Support plate 4B, 4C… Slide rails 5…Main frame 6A…First cylinder (cleaning member movement mechanism) 6B...Second cylinder (cleaning member movement mechanism) 6C…Third cylinder (roll movement mechanism) 6D…Fourth cylinder (roll movement mechanism) 7, 17, 27… Cleaning parts 7A... Wiper section 7B, 7C, 31A, 31B... Rod section 14a, 14b, 14c, 14d, 51d, 52d...Through hole 16A, 16B, 16C, 16D… Plungers 17a... Cleaning roll 17b...Support part 20A, 20B, 30A, 30B… Housing 27a... Scraper 27b... Leaf spring 27c...Support 27d…Support plate 40A, 40B, 51c, 52c... Housing support block (roll support section) 41A, 41B… Relay rods 50... Base 51...First vertical frame section 51a, 51b, 52a, 52b…post 52...Second vertical frame section 53... Top panel 100, 200, 300, 400, 500... Rotary die cutters L2,L3…axis line

Claims

1. A base, and a main frame having a first vertical frame portion and a second vertical frame portion extending upward from the base, The first roll and the second roll are supported at both ends by the first vertical frame and the second vertical frame, respectively, and are arranged side by side vertically. A cleaning member for cleaning the first roll or the second roll, The cleaning member is provided with a sliding mechanism that moves it in a direction along the axial direction of the second roll, The sliding mechanism allows the cleaning member to move between an operational position where it can contact the first roll or the second roll and a replacement position located outside the main frame of the rotary die cutter.

2. The slide mechanism includes a movable frame that supports the cleaning member and is movable relative to the main frame, The first vertical frame section has two support columns extending in the vertical direction, By moving the movable frame, which supports the cleaning member, in the axial direction of the second roll, the cleaning member can be moved in and out between the two support columns. The rotary die cutter according to claim 1.

3. The cleaning member is provided with a cleaning member moving mechanism that moves the cleaning member along the radial direction of the first roll or the second roll to be contacted. The rotary die cutter according to claim 1 or 2.

4. At the support shaft portions at both ends of the first roll, plate-shaped housings that extend radially in the direction of the first roll are mounted via bearings. At both ends of the second roll, a plate-shaped housing that extends radially across the second roll is attached via bearings to the support shaft portion. The main frame has a roll support portion that supports the housing of the second roll from below, The second roll is provided with a roll movement mechanism that moves it up and down between a position where it is supported by the roll support and a position where it is in contact with the first roll. The rotary die cutter according to claim 1 or 2.

5. The system includes a cleaning member movement mechanism for moving the cleaning member up and down. The rotary die cutter according to claim 4.

6. At the support shaft portions at both ends of the first roll, plate-shaped housings that extend radially in the direction of the first roll are mounted via bearings. At both ends of the second roll, a plate-shaped housing that extends radially across the second roll is attached via bearings to the support shaft portion. The movable frame is positioned below the second roll, The second roll is provided with a roll movement mechanism that moves it up and down between a position where it is supported by the movable frame and a position where it is in contact with the first roll. The rotary die cutter according to claim 2.

7. The system includes a cleaning member movement mechanism for moving the cleaning member up and down. The rotary die cutter according to claim 6.

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