JP6094250B2 - Single sheet processing equipment - Google Patents

Description

  The present invention relates to an apparatus used when processing continuous paper into a single sheet.

  When manufacturing a single sheet, first, a continuous sheet obtained by continuously printing a single sheet is manufactured, and then the continuous sheet is cut in a width direction orthogonal to the flow direction to manufacture a single sheet. As a method for cutting the continuous paper in the width direction, there is a method for cutting the continuous paper in the width direction by moving the cutter blade perpendicular to the flow direction up and down as in Patent Document 1, but Patent Document 2 As described above, there is also a method of cutting the continuous paper in the width direction by rotating a cutter roll having two theta blades orthogonal to the flow direction.

  In Patent Document 2, the two theta blades are attached to the cutter roll in order to remove unnecessary blank portions between the cut sheets generated by a blanket gap or the like. When the continuous paper is cut in the width direction so as to remove unnecessary blank portions between the cut sheets, the unnecessary blank portions become cut pieces of paper. Therefore, in Patent Document 2, a method for collecting unnecessary blank portions is also disclosed. It is described.

  In Patent Document 2, when a suction hole is provided between two theta blades provided on a cutter roll and the unnecessary blank portion is cut with the cutter roll, a suction force is applied to the suction hole to remove the unnecessary blank portion with the cutter roll. By sucking and transporting the unnecessary blank portion, the suction force of the suction hole is released in the vicinity of half rotation after sucking and transporting the unnecessary blank portion, and the unnecessary blank portion is collected by duct suction.

Japanese Patent No. 2665082 Japanese Patent No. 4424529

  However, the cutting direction of the continuous paper is not only in the width direction, but as described in Patent Document 1, before cutting the continuous paper in the width direction, the continuous paper is cut in the flow direction using a slitter blade, In some cases, marginal portions provided at the left and right edges of the continuous paper are removed.

  After cutting the continuous paper in the flow direction so as to remove the marginal portions provided at the left and right edge portions of the continuous paper, and then cutting the continuous paper in the width direction as in Patent Document 2, the original continuous state is obtained. The marginal part becomes a piece of paper-like cutting waste.

  The marginal part that becomes a piece of paper-like cutting waste may be recovered with the same content as the unnecessary blank part, but when the number of pieces of paper-like cutting waste increases, the piece of paper-like cutting waste stays at the place where the duct is sucked As a result, there is a risk that a piece of paper-like cutting waste will be mixed into the product (here, a single sheet).

  Therefore, the present invention cuts the cut in the flow direction to remove the marginal portions provided at the left and right edges of the continuous paper into continuous paper with a slitter blade, and then performs the cut in the width direction to remove unnecessary blank portions between the cut sheets. Provided is a single sheet processing apparatus in which cutting waste remains in a continuous state even when processed into continuous paper by a cutter roll.

First invention for solving the above problems, the continuous sheet is unnecessary margin exists between the marginal portions are present on the left and right noncontinuous An apparatus for processing the cut sheet, removing the marginal portion A slitter processing unit that processes the cut in the flow direction into the continuous paper, and a slit in the width direction for removing the unnecessary blank portion after the slit in the flow direction is processed into the continuous paper by the slitter processing unit. A slitting unit that processes the cut in the width direction into the continuous paper by the sheeter processing unit, and then sucks the unnecessary blank portion with a suction duct. processing unit is disposed on the left and right at intervals corresponding to the length in the width direction of the cut sheet, a disk-shaped slitter blade for machining the cut of the flow direction in the continuous paper, the unnecessary At the timing when the white portion passes through the cutting point of the disk-shaped slitter blades, during said unnecessary margin is shorter than the time for passing through the cutting point of the disk-shaped slitter blades, the a position not in contact with the continuous paper A slitter blade retracting mechanism for retracting a disk-shaped slitter blade, wherein the theta processing section is longer than the width of the single sheet and shorter than the width of the continuous paper, and cuts in the width direction two theta blade processed into the continuous sheet, said unnecessary margin of the flow direction at intervals corresponding to the length have a cutter roll the theta blade is disposed, said having said slitter processing unit slitter A blade retraction mechanism, a cam portion that rotates in synchronization with the conveying speed of the continuous paper, a roller that contacts the cam portion, and a driven node portion on which the shaft of the slitter blade is attached above the roller; The driven node is configured by a pressurizing unit that pressurizes downward, and the contour of the cam portion is formed at the timing when the unnecessary blank portion passes the cutting point of the slitter blade, and the unnecessary blank portion is formed by the slitter blade. The single sheet processing apparatus is designed so that the slitter blade is in a position not in contact with the continuous paper for a time shorter than a time for passing the cutting point . By realizing the slitter blade retracting mechanism of the slitter processing portion using the cam portion, it is possible to cope with various items as long as the cam portion corresponding to the imposition of the single sheet is created.

  As described above, after processing the cut in the flow direction to remove the marginal portions provided at the left and right ends of the continuous paper into the continuous paper by the slitter blade by the single sheet processing apparatus of the present invention, unnecessary blank portions between the single sheets are formed. When the cut in the width direction to be removed is processed into continuous paper by a cutter roll, the slitter blade retracting mechanism places the slitter blade in a position where it does not contact the continuous paper for a time shorter than the time required for the unnecessary blank portion to pass through the cutting point of the slitter blade. In order to evacuate, there is an uncut portion in the cut in the flow direction, and the theta processing portion does not cut the entire width of the continuous paper, so the cutting waste is separated from the left and right marginal portions of the continuous paper. It becomes the cutting waste of the continuous state where the unnecessary blank part in between continued.

The figure for demonstrating the cut sheet processing apparatus concerning this embodiment. The figure explaining the cut | notch processed into the single sheet | seat printed on the continuous paper, and the continuous paper. The perspective view of a slitter process part. The figure explaining operation | movement of a slitter process part. The perspective view of a theta processing part. The figure explaining the cutting waste collection | recovery part of a single sheet processing apparatus. The figure explaining the internal structure of a cutter roll. The 1st figure explaining operation which collects cutting waste. The 2nd figure explaining operation which collects cutting waste. FIG. 3 is a diagram for explaining the operation of collecting cutting waste. The figure explaining a mode that cutting waste is sucked.

  From this, a preferred embodiment of the present invention will be described. The following description is not intended to limit the scope of the present invention, but is provided to aid understanding.

  FIG. 1 is a diagram for explaining a single sheet processing apparatus 1 according to the present embodiment, and FIG. 2 is a diagram for explaining single sheets 50 printed on continuous paper 5 and notches for processing into continuous paper 5. .

  The cut sheet processing apparatus 1 according to the present embodiment is an apparatus that processes the cut sheet 50 from the continuous paper 5, and the cut sheet processing apparatus 1 according to the present embodiment has a flow direction cut 54 for removing the marginal portion 52. A slitter processing unit 2 that processes the continuous paper 5, a sheet processing unit 3 that processes the widthwise cut 53 for removing the unnecessary blank portion 51 into the continuous paper 5, and a widthwise cut 53 by the sheeter processing unit 3. After processing into the continuous paper 5, the cutting waste collection part 4 which sucks the unnecessary blank part 51 with the suction duct 40 is provided. The slitter processing unit 2 is arranged on the left and right sides with an interval corresponding to the length of the cut sheet 50 in the width direction, and the slitter blade 20 that processes the cut 54 in the flow direction into the continuous paper 5 and the unnecessary blank portion 51 are slitters. A slitter blade retracting mechanism 21 for retracting the slitter blade 20 to a position where it does not contact the continuous paper 5 for a time shorter than the time when the unnecessary blank portion 51 passes the cutting point of the slitter blade 20 at the timing of passing the cutting point of the blade 20. Have Further, the theta processing unit 3 is not necessary to have two theta blades 31 for processing the cuts 53 in the width direction into the continuous paper 5 with the blade length being longer than the width of the single sheet 50 and shorter than the width of the continuous paper 5. It has the cutter roll 30 in which the theta blade 31 was arrange | positioned at intervals according to the length of the flow direction of the blank part 51. FIG. Further, FIG. 1 illustrates a belt conveyor 1 a that conveys the cut sheet 50 to a downstream apparatus (for example, a stacker) on the downstream side of the theta processing unit 3.

  As illustrated in FIG. 2, the cut sheets 50 are continuously printed on the continuous paper 5 of the present embodiment, the marginal part 52 exists at the left and right ends, and the unnecessary blank part 51 exists between the cut sheets 50.

  The length of the theta blade 31 disposed on the cutter roll 30 of the theta processing section 3 is longer than the single sheet 50 and shorter than the width of the continuous paper 5, and therefore, as shown in FIG. The length of the cut 53 in the width direction processed into the continuous paper 5 to remove the paper is longer than the length in the width direction of the single sheet 50 punched out from the continuous paper 5, but shorter than the length in the width direction of the continuous paper 5, The marginal part 52 is in a continuous state.

  Further, the cut 54 in the flow direction that is processed into the continuous paper 5 in order to remove the marginal portion 52 that is continuously provided on the left and right sides of the continuous paper 5 is not a continuous solid line, but in the flow direction of the unnecessary blank portion 51. The uncut portion 54 a having a length shorter than the length is a broken line existing at a location corresponding to the unnecessary blank portion 51.

  By processing such an incision into the continuous paper 5, the unnecessary blank portion 51 is connected to the left and right marginal portions 52 through the uncut portion 54a provided in the cut 54 in the flow direction, and the continuous paper is formed. The cutting waste generated when processing 5 into a single sheet 50 is in a continuous state. Since the cutting waste in a continuous state can be continuously collected, even if the cutting waste is sucked into the duct, the cutting waste does not stay and the cutting waste can be reliably collected.

  First, the slitter processing unit 2 that processes the cut 54 in the flow direction into the continuous paper 5 will be described. FIG. 3 is a perspective view of the slitter processing unit 2, and FIG. 4 is a diagram for explaining the operation of the slitter processing unit 2.

  As shown in FIG. 3, the slitter processing unit 2 of the single sheet processing apparatus 1 uses a cut in the flow direction 54 as a blade for processing the continuous paper 5 with an interval corresponding to the length of the single sheet 50 in the width direction. And a pair of slitter blades 20 arranged on the left and right, and a shaft 20a of the slitter blade 20 is rotated by a motor 20b.

  The slitter blade retracting mechanism 21 of the slitter processing portion 2 is a mechanism provided in the slitter processing portion 2 in order to create an uncut portion 54a that connects the marginal portion 52 and the unnecessary margin portion 51 at the left and right ends.

  Various methods for realizing the slitter blade retracting mechanism 21 are conceivable. In this embodiment, as shown in FIGS. 1 and 3, the slitter blade retracting mechanism 21 is rotated in synchronization with the conveyance speed of the continuous paper 5. Cam section 210, shaft 20a of slitter blade 20 is attached, driven node section 211 having roller 211a in contact with cam section 210, and pressure section 212 (air cylinder or spring) that pressurizes driven node section 211 downward Etc.).

  The contour of the cam portion 210 is such that the unnecessary blank portion 51 passes through the cutting point of the slitter blade 20 at a timing when the slitter blade 20 is shorter than the time during which the unnecessary blank portion 51 passes the cutting point of the slitter blade 20. The cam portion 210 is designed to move in the upward direction, and is rotated in synchronization with the conveyance speed of the continuous paper 5 by a drive system such as a motor 210a.

  The follower node 211 with the roller 211a in contact with the edge of the cam part 210 supports the shaft 20a of the slitter blade 20, and the pressurizing part 212 pressurizes the follower node 211 downward. With this configuration, the vertical position of the roller 211 a included in the driven node portion 211 is regulated by the shape of the cam portion 210.

  Although it is a simple schematic diagram, as shown in FIG. 4, the basic contour of the cam portion 210 of this embodiment is circular, and the diameter of a portion corresponding to the unnecessary blank portion 51 is increased. ing. By designing the contour of the cam part 210 in this way, the slitter blade 20 is positioned at the cutting position (FIG. 4A) where the diameter does not increase, and the cam part 210 increases in diameter. Then, the driven node portion 211 is pushed upward by the cam portion 210, and the slitter blade 20 is in a position not in contact with the continuous paper 5 (FIG. 4B).

  Here, the cam portion 210 is schematically illustrated. However, if the contour of the cam portion 210 is designed in accordance with the imposition of the cut sheet 50 to be actually manufactured, such a mechanism is illustrated in FIG. The cut 54 in the flow direction as described above can be processed into the continuous paper 5.

  Next, the theta processing unit 3 of the single sheet processing apparatus 1 that processes the cut 53 in the width direction of the continuous paper 5 into the continuous paper 5 will be described. FIG. 5 is a perspective view of the theta processing unit 3, and FIG. 5 does not show the cut waste collection unit 4.

  In the present embodiment, the theta processing unit 3 of the single sheet processing apparatus 1 has the same mechanism as that of the apparatus disclosed in Patent Document 2, and the blade length is longer than the width of the single sheet 50 and the width of the continuous paper 5. The two theta blades 31 for processing the cut 53 in the width direction for removing the unnecessary blank portion 51 into the continuous paper 5 are spaced apart according to the length of the unnecessary blank portion 51 in the flow direction. The disposed cutter roll 30 and a groove 320 for preventing damage to the theta blade 31 are provided, and the anvil roll 32 having the same circumference as the cutter roll 30 is provided. The theta blade 31 may be directly attached to the cutter roll 30 or may be provided on the cutter roll 30 with a magnet as in Patent Document 2. In the theta processing unit 3 having such a configuration, when the continuous paper 5 is processed into a single sheet 50, the cutter roll 30 and the anvil roll 32 rotate in synchronization with the conveyance speed of the continuous paper 5, and the unnecessary blank portion 51 is removed. A cut 53 in the width direction for removal is processed into the continuous paper 5.

  Next, the cutting waste collection unit 4 of the single sheet processing apparatus 1 will be described. FIG. 6 is a diagram for explaining the cut waste collecting unit 4 of the single sheet processing apparatus 1. The cutting waste collecting unit 4 of the single sheet processing apparatus 1 includes a suction duct 40 that sucks cutting waste in a state where the unnecessary blank portion 51 and the marginal portion 52 are connected. In this embodiment, the cutting waste collecting portion 4 is disclosed in Patent Document 2. In order to obtain an embodiment in which the present invention is applied to the apparatus, the unnecessary margin 51 of the continuous paper 5 processed by the theta processing section 3 is added to the cutting waste collecting section 4 of the single sheet processing apparatus 1 in the same manner as in Patent Document 2. Is provided with a mechanism for sucking and transporting to the position of the suction duct 40.

  FIG. 7 is a diagram illustrating the internal structure of the cutter roll 30. As shown in FIG. 7, a decompression chamber 300 is provided in the cutter roll 30 as in Patent Document 2, and a plurality of suction holes 301 communicating with the decompression chamber 300 are provided between the theta blades 31. It has been. One axis of the cutter roll 30 includes a hollow tube 302 communicating with the decompression chamber 300, and the decompression chamber 300 becomes negative pressure by sucking air in the decompression chamber 300 through the hollow tube 302. The suction force can be applied to the suction hole 301.

  In FIG. 7, in addition to the internal structure of the cutter roll 30, a blower 304 for setting the decompression chamber 300 in the cutter roll 30 to a negative pressure and a controller 305 for controlling the electromagnetic valve 303 of the blower 304 are illustrated. As the controller 305 that controls the electromagnetic valve 303 of the blower 304, a PLC (Programmable Logic Controller) that controls the operation of the cut sheet processing apparatus 1 can be used.

  FIGS. 8 to 10 are FIGS. 1 to 3 for explaining the operation of collecting cutting waste, respectively.

  When the sheet processing unit 3 of the single sheet processing apparatus 1 processes the cut 53 in the width direction into the continuous paper 5, first, as shown in FIG. 8, the theta blade 31 of the cutter roll 30 hits the continuous paper 5. Then, the cut 53 in the width direction is processed into the continuous paper 5. The controller 305 “opens” the electromagnetic valve 303 of the blower 304 at the timing immediately before the theta blade 31 of the cutter roll 30 hits the continuous paper 5, that is, the timing at which the theta blade 31 of the cutter roll 30 is almost directly below. The decompression chamber 300 of the roll 30 is set to a negative pressure. When the decompression chamber 300 of the cutter roll 30 becomes negative pressure, a suction force is generated in the suction hole 301 provided in the cutter roll 30, and the unnecessary blank portion 51 is attracted to the suction hole 301 by this suction force. Become.

  As illustrated in FIG. 9, since the cutter roll 30 is rotating, the unnecessary blank portion 51 is sucked and conveyed upward while being sucked into the suction hole 301 of the cutter roll 30.

  As illustrated in FIG. 10, the controller 305 “closes the electromagnetic valve 303 of the blower 304 at the timing when the cutter roll 30 sucks and conveys the unnecessary blank portion 51 and the theta blade 31 of the cutter roll 30 is almost directly above. ”, The suction of the unnecessary blank portion 51 is released, and the unnecessary blank portion 51 is sucked by the suction duct 40.

  FIG. 11 is a diagram illustrating a state in which cutting waste is sucked. As described with reference to FIG. 2, cutting waste generated when the single sheet processing apparatus 1 processes the continuous paper 5 into the single sheet 50 is unnecessary between the marginal portion 52 and the single sheet 50 at the left and right ends of the continuous paper 5. It becomes the cutting waste of the continuous state with which the blank part 51 continued. Since the left and right marginal portions 52 of the continuous paper 5 and the unnecessary margin portion 51 are connected, the left and right marginal portions 52 connected to the unnecessary margin portion 51 are also moved upward by the rotation of the cutter roll 30 as shown in FIG. The cutting dust in the continuous state in which the left and right marginal parts 52 and the unnecessary blank part 51 are continuous can be continuously collected by the suction duct 40.

  In the present embodiment, the cutting waste collecting unit 4 of the single sheet processing apparatus 1 has a mechanism that sucks and conveys the unnecessary blank portion 51 to the position of the suction duct 40. Since it becomes a continuous state, even if the suction conveyance mechanism described so far is not used, if the suction duct 40 sucks the unnecessary blank portion 51, the cutting waste can be continuously collected.

DESCRIPTION OF SYMBOLS 1 Single sheet processing apparatus 2 Slitter processing part 20 Slitter blade 21 Slitter blade evacuation mechanism 210 Cam part 211 Follower part 212 Pressurization part 3 Theta processing part 30 Cutter roll 31 Theta blade 32 Anvil roll 4 Cutting waste collection part 40 Suction duct 5 Continuous paper 50 Single sheet 51 Unnecessary blank portion 52 Marginal portion 53 Cut in width direction 54 Cut in flow direction 54a Uncut portion

Claims (1)

The continuous sheet is unnecessary margin exists between the marginal portions are present on the left and right noncontinuous An apparatus for processing the cut sheet, processing the notch in the flow direction for removing the marginal portion to the continuous paper A slitter processing unit, and a sheeter processing unit that processes the cut in the flow direction into the continuous paper by the slitter processing unit, and then processes the cut in the width direction to remove the unnecessary blank portion into the continuous paper, After the cut in the width direction is processed into the continuous paper by the theta processing unit, a cutting waste collecting unit that sucks the unnecessary blank portion with a suction duct is provided, and the slitter processing unit has a length in the width direction of the single sheet. is disposed on the left and right at intervals corresponding to the, a disk-shaped slitter blade for machining the cut of the flow direction in the continuous paper, cut the unnecessary margin portion of said disk-shaped slitter blades At the timing when passing through the point, during said unnecessary margin is shorter than the time for passing through the cutting point of the disk-shaped slitter blade slitter blades retract retracting said disk-shaped slitter blade in a position not in contact with the continuous paper Two theta blades that have a mechanism, and the sheeter processing unit has a blade length that is longer than a single sheet and shorter than a width of the continuous paper, and cuts the cut in the width direction into the continuous paper; the unnecessary margin of the flow direction at intervals corresponding to the length have a cutter roll the theta blade is disposed,
The slitter blade retracting mechanism of the slitter processing unit includes a cam unit that rotates in synchronization with the conveying speed of the continuous paper and a roller that contacts the cam unit, and the axis of the slitter blade is located above the roller. It is constituted by a mounted follower section and a pressurizing section that pressurizes the follower section in the downward direction, and the contour of the cam section is the timing at which the unnecessary blank section passes the cutting point of the slitter blade. It is designed so that the slitter blade is not in contact with the continuous paper for a time shorter than the time when the unnecessary blank portion passes the cutting point of the slitter blade,
Single sheet processing device characterized by that.

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