JP2018069363A - Rotary sheet processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To highly increase a processing speed by eliminating the need for complex control of a servo motor and shortening time taken for each processing operation.SOLUTION: A rotary sheet processing device sandwiches a long sheet between a pair of sizing and feeding rollers and a pair of drawing rollers; feeds it to a space between a pressure roller and an anvil roller; and repeatedly process the long sheet by means of a sheet processing section while feeding, as the processing roller and the anvil roller are rotated in the direction of feed, the long sheet sandwiched between a sheet processing part of the processing roller and the anvil roller. The rotary sheet processing device comprises roller space alteration means that alters the dimension of the space on the basis of the angle of rotation of a predetermined part of the sheet processing part of the processing roller with respect to the position of the space between the processing roller and the anvil roller.SELECTED DRAWING: Figure 1

Description

  The present invention repeatedly feeds a long sheet fed from a roll or the like from a rotary die cutter that rolls a label or the like by rotating a die roller and produces a large number of labels or the like of a predetermined size, or from a roll or the like. The present invention relates to a rotary sheet processing apparatus such as a rotary printing machine that repeatedly prints a label or the like on a long sheet to be printed by a rotating operation of a pressure plate roller to produce a number of labels or the like having a predetermined design.

  As a rotary die cutter which is a kind of the above-described rotary type sheet processing apparatus, there is a conventional rotary die cutter known in, for example, Patent Document 1 and the like, and such conventional rotary die cutters are usually positioned with their axes parallel to each other. A die plate and an anvil roller having a smooth outer peripheral surface provided in a predetermined range in the circumferential direction with a pressing plate provided with a punching blade having a developed shape corresponding to the label contour shape. A dimensioning feed roller that is arranged on the near side in the sheet feeding direction with respect to the die roller and the anvil roller, and whose axis is parallel to each other and makes a pair, and in the sheet feeding direction with respect to the die roller and the anvil roller Dimension feed roller arranged on the back side and paired with axes parallel to each other, and axes parallel to each other And it comprises a, and lead rollers paired with.

  Thereby, for example, a long sheet in which a base sheet and an adhesive sheet are laminated is dimensioned and fed from a long sheet roll with a feed roller, and fed into the gap between the die roller and the anvil roller from the front side, and the back side Then, it is pulled out from the gap between the die roller and the anvil roller by sandwiching it with the drawer roller, and the die roller press plate is rotated by the feed direction rotation of the die roller and the anvil roller in the opposite directions. While passing the gap between the die roller and the anvil roller from the leading end to the tail end in the rotation direction, hold the long sheet between the press plate and the anvil roller and feed the die roller plate punching blade. Cut the outline of the long sheet into the adhesive sheet facing the die roller. Jo of the die-cutting is performed.

  Then, when the tail end of the die roller press plate passes through the gap between the die roller and the anvil roller, and the die roller press plate and the anvil roller no longer hold the long sheet, the die roller and the anvil While rotating the roller further in the feed direction until the tip of the die roller platen in the rotation direction approaches the gap between the die roller and the anvil roller again, the pair of dimensioning feed rollers and the pair of drawer rollers are reversed. Rotate the long sheet back until the next punching start position before the predetermined pitch from the previous punching start position of the adhesive sheet is positioned in front of the gap between the die roller and the anvil roller. When the tip of the plate rotation direction approaches the gap between the die roller and anvil roller again, the mating dimension The feed roller and the pair of drawer rollers are each rotated in the forward direction, and the long sheet is fed again according to the peripheral speed of the die roller plate and the anvil roller. Then, while sandwiching the long sheet, the operation of punching the label contour shape from the next punching start position of the long sheet is repeated with the punching blade of the plate.

  After that, out of the long sheet pulled out from the gap between the die roller and the anvil roller with the pulling roller, the base sheet that leaves only the inner label part of the label contour shape of the adhesive sheet is wound up in a roll shape Then, an unnecessary portion outside the label contour shape of the pressure-sensitive adhesive sheet is peeled off from the base sheet and separately wound into a roll.

JP 2006-007333 A

  4 (a) and 4 (b) show only the label portion of the adhesive sheet in a laminated state when the conventional returning operation of the long sheet or the deceleration feeding operation by the rotary die cutter of the above embodiment is performed. 8A and 8B are a plan view and a side view showing the base sheet, and FIG. 8A and FIG. 8B show a base in which only the label portion of the adhesive sheet is left in a laminated state when the long sheet is not returned. It is the top view and side view which show a sheet | seat.

  The pressure plate on the outer peripheral surface of the die roller does not extend over the entire periphery of the outer surface of the die roller, but extends with a length corresponding to the size of the label portion to be left on the base sheet. On the outer peripheral surface of the die roller, there is usually a cut between the tail end and the tip of the press plate, the cut passes through the gap between the die roller and the anvil roller, and the long sheet is the press plate and the anvil roller. When the long sheet is fed at the same speed as when processing with the pressure plate without performing the returning operation of the long sheet while being released from the nipping in Fig. 8 (a), (b) As shown in the figure, a portion of the label L is punched out from the adhesive sheet on the base sheet B of the long sheet S, and the interval (so-called dove width) W of the label contour shape corresponding to the processing region is increased. S is wasted.

  For this reason, in the conventional rotary die cutter, as shown in FIGS. 4A and 4B, the interval W of the label contour shape to be punched into the adhesive sheet on the long sheet S is made as small as possible. In order to save the waste of the sheet S, the cut of the pressure plate on the outer peripheral surface of the die roller passes through the gap between the die roller and the anvil roller, and the long sheet S is released from the clamping between the pressure plate and the anvil roller. In the meantime, the return operation of the long sheet S is performed by the respective reverse rotations of the dimension-feeding roller and the drawing roller that make a pair, and the pitch P between the punching start positions is set and adjusted.

  However, when the long sheet S is returned by the reverse rotation of the dimension feeding roller and the drawing roller in this way, complicated control of the servo motors that respectively drive the dimension feeding roller and the drawing roller is necessary. In addition, there is a problem that it takes time to change the rotation direction due to the inertia of the roller, which increases the time for each processing operation and restricts the increase in processing speed. Even in a conventional rotary type label printing machine having a plate cylinder having an outer peripheral surface provided with a printing plate in a predetermined range in the circumferential direction, the pitch between printing start positions of individual stickers to be printed on a long sheet can be adjusted. There were similar problems with the settings and adjustments.

  The present invention provides a rotary sheet processing apparatus that solves such problems of the prior art, facilitates pitch setting and adjustment with a simple and inexpensive configuration, and enables a high processing speed. It is for the purpose.

The rotary sheet processing apparatus of the present invention that achieves the above-described object includes a processing roller having an outer peripheral surface provided with a sheet processing portion in a predetermined range in the circumferential direction, the axes of which are positioned parallel to each other, and a smooth surface. An anvil roller having an outer peripheral surface, a dimensioning feed roller which is arranged on the near side in the sheet feeding direction with respect to the processing roller and the anvil roller, and whose axes are parallel to each other, and the processing roller and the anvil roller A drawer roller disposed on the back side in the sheet feeding direction and having a pair of axes whose axes are parallel to each other,
The long sheet is sandwiched between the pair of dimension-feeding rollers and the pair of pull-out rollers, and sent through the gap between the processing roller and the anvil roller, and the feeding direction of the processing roller and the anvil roller. In a rotary sheet processing apparatus that repeatedly processes a long sheet with the sheet processing unit while rotating and holding the long sheet between the sheet processing unit of the processing roller and the anvil roller with rotation. ,
Roller gap changing means for changing a size of the gap based on a rotation angle of a predetermined portion of the sheet processing portion of the processing roller with respect to a position of the gap between the processing roller and the anvil roller. It is a feature.

  In the rotary type sheet processing apparatus of the present invention, a long sheet is sandwiched between a pair of dimension-feeding rollers and fed into the gap between the processing roller and the anvil roller from the front side in the sheet feeding direction, and the sheet feeding direction On the back side of the roller, it is pinched by a pair of drawer rollers and pulled out from the gap between the processing roller and the anvil roller. Then, by rotating the processing roller and the anvil roller in the feed direction, the sheet processing part of the processing roller passes from the leading end to the tail end in the rotating direction through the rotation position for processing the long sheet with a gap between the anvil roller. While a long sheet is being sandwiched and fed between the sheet processing unit and the anvil roller, the sheet processing unit of the processing roller processes the predetermined processing region on the surface of the long sheet facing the processing roller.

  When the rotation angle of the rotation direction tail end until the rotation direction tail end as the predetermined part of the sheet processing portion of the processing roller reaches the position of the gap between the processing roller and the anvil roller, the roller The gap changing means changes the size of the gap between the processing roller and the anvil roller so as to be larger than the size at the time of processing, so that the processing of the predetermined processing area in the sheet processing section is completed. Therefore, the sheet processing part of the processing roller and the anvil roller do not hold the long sheet before the tail end of the rotation direction of the sheet processing part reaches the position of the gap between the processing roller and the anvil roller. While maintaining the rotation speed of the roller constant, the rotation speed in the feed direction of the paired dimensioning feed roller and the pair of drawer rollers is higher than before. Therefore, it is possible to reduce the length of the long sheet by reducing the interval of the area where the long sheet is processed without having to reversely rotate the dimension feeding roller and the drawing roller. Is possible.

  Further, the rotation angle of the rotation direction tip as the other predetermined portion of the sheet processing portion of the processing roller reaches or reaches the position of the gap between the processing roller and the anvil roller is a predetermined angle. Then, the roller gap changing means changes the size of the gap between the processing roller and the anvil roller so that it returns to the original processing size, thereby processing the predetermined processing area in the sheet processing section. Before starting, the long sheet is sandwiched between the sheet processing part of the processing roller and the anvil roller when the rotation direction tip of the sheet processing part reaches the position of the gap between the processing roller and the anvil roller The rotation speed in the feed direction of the paired dimensioning feed roller and the paired pull-out roller until the beginning of clamping is returned to the original speed. In Succoth, while maintaining the rotational speed of the processing roller constant, it can begin processing of a sheet processing unit.

  Therefore, according to the rotary type sheet processing apparatus of the present invention, the interval (so-called dove width) of the processing region of the long sheet is reduced without the reverse rotation of the dimension feeding roller and the drawing roller. Since the waste of the sheet can be eliminated, it is possible to easily set and adjust the pitch between the areas to be processed into a long sheet, and the processing time for each time can be shortened. Can be made faster than before.

  Furthermore, according to the rotary type sheet processing apparatus of the present invention, the sheet processing section is larger or the circumference of the processing roller on the outer peripheral surface of the processing roller is such that the peripheral length of the sheet processing section is substantially equal to the peripheral length of the outer peripheral surface of the processing roller. Even if a plurality of sheet processing parts are arranged in the direction, and there is little or no gap between the leading end and tail end in the rotation direction of the sheet processing part on the outer peripheral surface of the processing roller, It is possible to reduce the waste of the long sheet by reducing the interval (so-called dove width) of the processing area.

  In the rotary type sheet processing apparatus according to the present invention, the roller gap changing means is a recess formed in a part of the outer circumferential surface of the anvil roller over the entire length in the axial direction of the outer circumferential surface. And preferred.

  If it does in this way, a roller clearance gap change means can be comprised by the simple and cheap method only of forming a recessed part by the cutting process etc. in the outer peripheral surface of an anvil roller.

In the rotary type sheet processing apparatus of the present invention, the roller gap changing means is
Roller movable support means for supporting one of the anvil roller and the processing roller so as to be movable back and forth with respect to the other roller;
A cam surface that is provided on the other roller, has a cylindrical shape coaxial with the other roller, and has a recess in a part of the circumferential direction;
A cam follower which is provided on the one roller and abuts against the cam surface and moves along the irregularities of the cam surface to move the one roller forward and backward with respect to the other roller;
It is preferable that it has.

  In this way, the setting state and the adjustment state of the machining pitch can be easily optimized by changing the positions and shapes of the irregularities on the cam surface.

  In this case, the roller movable support means has an L-shape and a roller support member that is pivotally supported so that the bent portion of the L-shape can swing, and the roller support member includes the L-shape. It is preferable that the other roller is supported by one arm and the cam follower is supported by the other L-shaped arm.

  In this way, the roller movable support means can be configured with a simple and inexpensive configuration.

It is a side view which abbreviate | omits and shows the front side body panel and front side frame about the rotary type die cutter as one Embodiment of the rotary type sheet processing apparatus of this invention. It is a front view which abbreviate | omits and shows the dimension sending-out roller, the drawing-out roller, and the drive system of those rollers about the rotary die cutter of the said embodiment. It is explanatory drawing which expands and shows the operation state different from the state shown in FIG. 1 about the rotary type die cutter of the said embodiment. (A), (b) is a base sheet in which only the sealing portion of the pressure-sensitive adhesive sheet is left in the laminated state when the conventional returning operation of the long sheet or the deceleration feeding operation by the rotary die cutter of the above embodiment is performed. It is the top view and side view which show. Part of the rotary type printing machine as another embodiment of the rotary type sheet processing apparatus of the present invention, with the side frame on the near side, the dimension feeding roller, the drawing roller, and the drive system of those rollers omitted. It is a side view omitted and shown. It is a front view which abbreviate | omits and shows the dimension taking-out feed roller, the drawing | extracting roller, and the drive system of those rollers about the rotary type printing machine of the said embodiment. It is explanatory drawing which expands and shows the operation state different from the state shown in FIG. 5 about the rotary type printing machine of the said embodiment. (A), (b) is the top view and side view which show the base sheet which only left the sealing part of the adhesive sheet in the lamination | stacking state in the case of not performing the return operation | movement of a long sheet.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a body die and a front side of a rotary die cutter for repeatedly punching and processing a label or seal having a predetermined contour shape on a long sheet as an embodiment of a rotary sheet processing apparatus of the present invention. FIG. 2 is a front view showing the rotary die cutter of the above embodiment with the dimension feeding roller, the drawing roller, and the drive system of those rollers omitted, and FIG. 3 is an explanatory view showing an enlarged operation state different from the state shown in FIG. 1 for the rotary die cutter of the embodiment.

  The rotary die cutter of this embodiment has two sheets that are erected on these stays 2 with both ends of two stays 2 passed between the left and right body panels 1 fixed to the left and right body panels 1 with screws. The upper ends of the thick plate-like side frames 3 are connected to each other by a thick plate-like upper frame 4 to form a gate-type frame 5, and the U-shape provided on the upper portions of the two side frames 3 from the upper ends. The upper bearings 6 are fitted to the respective cutouts 3a so as to be movable up and down, and the lower bearings 7 are respectively fixed to the lower portions of the two side frames 3, and the upper roller 6 serves as a die roller 8 as a processing roller. The drive shaft 9 of the anvil roller 10 is supported by the lower bearing 7 in parallel and rotatably with the drive shaft 9 of the die roller 8.

  An output shaft 13 of a servo motor 12 with a speed reducer disposed outside the body panel 1 is drivingly coupled to one end portion of the drive shaft 9 of the die roller 8. The through screw holes 4a that pass therethrough are respectively formed, the press screws 14 are screwed into the through screw holes 4a, and the press knobs 15 are fixed to the upper ends of the press screws 14, and both ends of the upper frame 4 are fixed. A pressure fixing knob 16 is fitted in the middle of each pressure screw 14 on the upper side, and the lower end of each pressure screw 14 is brought into contact with the upper end of each upper bearing 6, so The clearance between the die roller 8 and the anvil roller 10 during punching can be adjusted by raising and lowering and fixing the pressure screw 14 by operating the pressure fixing knob 16.

  The die roller 8 has a permanent magnet and is magnetized on the outer peripheral surface. By the magnetism, a label or a seal processed as a sheet processing portion on the cylindrical outer peripheral surface of the die roller 8 is developed on a plane. A thin plate-shaped punch made of a steel plate having a thickness of about 0.5 mm, for example, having a contour-shaped punching blade that matches the contour shape of the die roller 8 and extending along the cylindrical outer peripheral surface of the die roller 8 The processing die 17 is positioned at a predetermined position by a positioning pin protruding from the outer peripheral surface of the die roller 8 and is detachably fixed. For example, the punching die 17 is roughly processed by etching so that a portion other than the punching blade portion is lowered, and is then fixed on the outer peripheral surface of the die roller 8 by a machine tool such as an NC milling machine. In the illustrated example, only one punching die 17 is fixed on the outer peripheral surface of the die roller 8, but the same or different contour shapes are used. A plurality of punching dies 17 having a plurality of punching blades may be arranged and fixed on the outer peripheral surface of the die roller 8 in the circumferential direction.

  The anvil roller 10 is made of, for example, aluminum which does not have magnetism. In this embodiment, the anvil roller 10 has a recess 10a formed in a part of the outer peripheral surface in the circumferential direction over the entire length in the axial direction of the outer peripheral surface. However, the position of the gap between the die roller 8 and the anvil roller 10, which is the rotational position where the punching die 17 and the anvil roller 10 on the outer peripheral surface of the die roller 8 pinch the long sheet S and perform the punching process (see FIG. In the example shown, the gap between the die roller 8 and the die roller 8 expands when it comes to a position (directly facing upward), so that the recess 10a constitutes a roller gap changing means.

  Here, the rotation direction front part of the recessed part 10a has fallen at a steep angle, and when this, the rotation direction front part of the recessed part 10a comes to the position of the clearance gap between the die roller 8 and the anvil roller 10, and is a long sheet | seat. S can be quickly released from the clamping state and decelerated immediately. On the other hand, the rear portion in the rotational direction of the concave portion 10a is gradually shallower. As a result, the long sheet S of the die roller 8 is moved as the rear portion in the rotational direction of the concave portion 10a approaches the position of the gap between the die roller 8 and the anvil roller 10. The tension applied to the long sheet S can be reduced by the difference between the peripheral speed of the anvil roller 10 and the feed speed of the long sheet S by being gradually sandwiched between the outer peripheral surface or the punching die 17 and the anvil roller 10. .

  Gears 18 are integrally connected to the rollers 8 and 10 at one end (the right end in FIG. 2) of the die roller 8 and one end (the right end in FIG. 2) of the anvil roller 10, respectively. The gears 18 have the same gear specifications such as the same number of teeth and pitch circle diameter and mesh with each other, and rotate the anvil roller 10 at the same speed as the die roller 8 in the opposite direction to the die roller 8. As a result, the die roller 8 and the anvil roller 10 rotate in the feeding direction in opposite directions as indicated by arrows in FIG.

  Further, between the left and right body panels 1, a pair is formed with their axes parallel to each other on the front side (left side in FIG. 1) in the feeding direction of the long sheet S with respect to the die roller 8 and the anvil roller 10. A dimension feeding roller 19 is disposed, and a drawing roller 20 is formed on the back side (right side in FIG. 1) in the sheet feeding direction with respect to the die roller 8 and the anvil roller 10 and whose axes are parallel to each other. These are composed of drive rollers 19a, 20a and nip rollers 19b, 20b for pressing the long sheet S against the drive rollers 19a, 20a if the surface is made of rubber or the like having a high friction coefficient. The drive rollers 19a, 20a Is a servo motor (not shown) similar to the servo motor 12 with a speed reducer that rotationally drives the die roller 8. Rolling is driven, the operation of the servo motor for rotating them die roller 8 and the drive roller 19a, and 20a, respectively, are controlled by a common conventional servo controller (not shown).

  In the rotary die cutter of this embodiment, as shown in FIG. 1, for example, a long sheet S in which a base sheet B and an adhesive sheet A are laminated, a sizing roller 19 a of a feed roller 19 and a nip The sheet is fed from a long sheet roll (not shown) sandwiched between the rollers 19b and fed into the gap between the die roller 8 and the anvil roller 10 from the front side in the sheet feeding direction, and at the back side in the sheet feeding direction, a driving roller for the drawing roller 20 20a and the nip roller 20b are sandwiched between the die roller 8 and the anvil roller 10 and drawn out from the gap, and the die roller 8 and the anvil roller 10 rotate in the feed direction, so that the die 17 of the die roller 8 rotates in the rotation direction. From the tip 17a to the tail end 17b in the rotational direction (see FIG. 3), The long sheet S is nipped between the punching die 17 and the anvil roller 10 and sent while passing through a position facing directly below, which is the rotational position where the long sheet S is punched by the gap between the long roller S and the roller 10. However, the punching die 17 of the die roller 8 punches a label or seal having a predetermined contour shape in a predetermined processing region of the adhesive sheet A of the long sheet S facing the die roller 8.

  Then, the rotational direction tail 17b until the rotational direction tail end 17b as a predetermined part of the die-rolling die 17 of the die roller 8 reaches a position facing directly below that is the position of the gap between the die roller 8 and the anvil roller 10 is reached. When the rotation angle of the end 17b reaches a predetermined angle, that is, when the tail end 17b in the rotation direction of the punching die 17 is located just a predetermined rotation angle (about 25 degrees in FIG. 3), the concave portion of the anvil roller 10 10a reaches the position where the front end in the rotation direction faces directly above the gap between the die roller 8 and the anvil roller 10, and from that point the size of the gap between the die roller 8 and the anvil roller 10 is increased. It changes so that it may become larger than the magnitude | size at the time of the process with the die-cutting die 17. FIG.

  Thereby, after the punching process of the label or the seal having the predetermined contour shape in the punching die 17 to the predetermined processing region of the adhesive sheet A of the long sheet S is completed, the rotational end of the punching die 17 is rotated. Since the die-cutting die 17 of the die roller 8 and the anvil roller 10 do not hold the long sheet S before 17b reaches the position of the gap between the die roller 8 and the anvil roller 10, the servo controller While maintaining the rotational speed of the die roller 8 constant, the servo motors that drive the driving rollers 19a and 20a of the dimensioning feed roller 19 and the drawing roller 20 are decelerated, and the dimensioning feeding roller 19 and the drawing roller 20 The rotational speed in the feed direction can be decelerated from an earlier stage than before, and therefore their dimensions Even if the feed roller 19 and the drawing roller 20 are not intentionally rotated in the reverse direction, as shown in FIG. 4, the distance W between the regions where the long sheet S is subjected to the punching process of the label or the seal as compared with the case shown in FIG. It is possible to reduce the waste of the long sheet S.

  Further, the rotational direction tip 17a as the other predetermined portion of the die-rolling die 17 of the die roller 8 reaches or after reaching the position of the gap between the die roller 8 and the anvil roller 10. The rotation direction of the anvil roller 10 is rotated in the direction of rotation when the rotation angle of the punching die 17 comes to the front by a predetermined rotation angle or passes by a predetermined rotation angle. The rear end is changed so that the size of the gap between the die roller 8 and the anvil roller 10 is returned to the original processing size.

  Thereby, before the punching process of the label or seal of the predetermined contour shape in the punching die 17 to the next predetermined processing region of the adhesive sheet A of the long sheet S is started, the leading end of the punching die 17 in the rotation direction When 17a reaches the position of the gap between the die roller 8 and the anvil roller 10, or after that, the long sheet S is sandwiched between the die die 17 of the die roller 8 and the anvil roller 10, The servo motors for driving the dimensioning feed roller 19 and the driving rollers 19a and 20a of the drawing roller 20 are accelerated before the clamping starts, and the rotational speeds in the feed direction of the dimensioning feeding roller 19 and the drawing roller 20 are changed to the original speed. By returning to, the feed speed of the long sheet S is set to the peripheral speed while keeping the rotational speed of the die roller 8 constant. Itasa so, it is possible to start the next punching of the label L or seal in punching die 17.

  Thereafter, as shown in FIG. 1, only the label or seal portion inside the predetermined contour shape of the adhesive sheet is taken out of the long sheet S drawn from the gap between the die roller 8 and the anvil roller 10 by the drawing roller 20. The base sheet B left in the laminated state is wound up in a roll shape by a winder (not shown), and an unnecessary frame portion F outside the predetermined contour shape of the adhesive sheet peeled off from the base sheet is separately separated by a winder (not shown). Take up in a roll.

  Therefore, according to the rotary die cutter of this embodiment, the label of the adhesive sheet A of the long sheet S as shown in FIG. 4 without the reverse rotation of the dimension feeding roller 19 and the drawing roller 20 respectively. Since it is possible to reduce the waste of the long sheet S by reducing the interval (so-called dove width) W of the L or seal punching region, the pitch between the label L processed into the long sheet S or the seal punching region Since the setting and adjustment of P can be facilitated and the processing time for each time can be shortened, the processing speed of the long sheet S can be increased more than before.

  Furthermore, according to the rotary die cutter of this embodiment, the peripheral length of one or a plurality of punching dies 17 arranged side by side is almost equal to the peripheral length of the outer peripheral surface of the die roller 8, and the outer periphery of the die roller 8 is the same. Even when there is little or no clearance between the tip 17a and the tail end 17b in the rotational direction of the die 17 on the surface, the interval (so-called dove width) W between the punching regions of the long sheet S is reduced. Can eliminate the waste of the long sheet S.

  Furthermore, according to the rotary die cutter of this embodiment, the roller gap changing means is a recess 10a formed on a part of the outer peripheral surface of the anvil roller 10 along the entire length in the axial direction of the outer peripheral surface. Therefore, the roller gap changing means can be configured by a simple and inexpensive method in which the recess 10a is formed on the outer peripheral surface of the anvil roller 10 by cutting or the like.

  FIG. 5 shows a front side body panel and a front side of a rotary type printing machine that prints a label or seal having a predetermined contour shape on a long sheet as another embodiment of the rotary type sheet processing apparatus of the present invention. FIG. 6 is a front view showing the rotary printing machine of the above embodiment with the dimension feeding roller, the drawing roller, and the drive system of those rollers omitted, and FIG. FIG. 7 is an explanatory view showing, in an enlarged manner, an operating state different from the state shown in FIG.

  In the rotary type printing machine of this embodiment, the upper portions of two thick plate-like side frames 22 which are erected on both ends of two stays 21 and fixed to the stays 21 by screws are also used. In the same manner as in the rotary die cutter of the previous embodiment, a portal frame 24 is formed between left and right body panels (not shown), and the upper parts of the two side frames 22 are connected. The ink fountain 25 is detachably mounted on the upper frame 23, and the ink discharge roller 26 is horizontally disposed between the upper portions of the two side frames 22, and the support shaft 26a is rotated at a predetermined position. The bearings are supported so that the doctor blade 25a in the ink fountain 25 is pressed by a plurality of adjusting screws 25b toward the outer peripheral surface of the ink discharge roller 26, and the ink in the ink fountain 25 is pressed. Over its entire width on the outer peripheral surface of the ink fountain roller 26 are evenly daub as.

  Further, between the two side frames 22, an ink calling roller 27, an ink transfer roller 28, an upper ink kneading roller 29, and two side ink kneading rollers are sequentially arranged from the upper part of the side frame 22. 30, a plate cylinder 31 as a processing roller, and an anvil roller 32 are arranged horizontally and parallel to each other, and a support shaft 27 a of the ink calling roller 27 is supported by the two side frames 22 so as to be rotatable and vertically movable. The support shafts 28a, 29a, 30a of the ink transfer roller 28, the upper ink kneading roller 29, and the two side ink kneading rollers 30, and the drive shaft 31a of the plate cylinder 31 are respectively provided on the two side frames 22. The bearing is rotatably supported at a predetermined position.

  A printing plate 33 made of a resin plate having a thickness of about 3 mm is detachably attached and fixed on the outer peripheral surface of the plate cylinder 31 so as to extend a predetermined length in the circumferential direction. For example, the fixing portions provided one step lower along the both side portions of the printing plate 33 are thin holding portions provided at both end portions of the plate cylinder 31 so as not to protrude from the printing plate 33 along the outer peripheral surface thereof. It is possible to carry out by sandwiching with, or alternatively, a double-sided tape may be used.

  The anvil roller 32 is rotatably supported by a support shaft 32a via bearings disposed at both ends of the anvil roller, and both ends of the support shaft 32a are substantially vertically arranged on the two side frames 22. Loosely inserted into the elongated slot 22a, and supported by one arm 34a extending in a substantially horizontal direction of each L-shaped roller support member 34 arranged on the outside of the two side frames 22, The roller support members 34 support the L-shaped bent portions so as to be swingable by support shafts 34 b that are rotatably supported at predetermined positions on the two side frames 22, and the roller support members 34. The other arms 34c extending substantially in the vertical direction respectively support a roller 35 as a cam follower rotatably.

  A substantially disc-shaped cam plate 36 as a cam is integrally coupled to both ends of the drive shaft 31a integrally coupled to the plate cylinder 31 and projecting to the outside of the two side frames 22, respectively. These cam plates 36 have linear notches 36a in the illustrated example in the same direction on the outer peripheral surface thereof. The anvil roller 32 applies its own weight to one arm 34a of the roller support member 34 arranged on the outside of each of the two side frames 22, whereby each of the roller support members 34 has the other arm 34c. The roller 35 as a cam follower supported rotatably is always pressed against the outer peripheral surface of the corresponding cam plate 36.

  Further, one of the two end portions (the right end portion in FIG. 6) of the drive shaft 31a of the plate cylinder 31 projecting outside the two side frames 22 is disposed outside the body panel (not shown). An output shaft 38 of a servomotor 37 with a speed reducer as a drive motor is drivingly coupled so that the plate cylinder 31 can be rotationally driven. The drive shaft 31a of the plate cylinder 31 and the support shaft 29a of the upper ink kneading roller 29 include a pulley (not shown) disposed between the two side frames 22 and the end portions of the rollers, and the pulleys. The upper ink kneading roller 29 is driven and coupled by a belt type transmission mechanism composed of a belt (not shown) wound around, whereby the rotation of the plate cylinder 31 is transmitted and rotates together with the plate cylinder 31 in the same rotation direction. Instead of the belt transmission mechanism, the upper ink kneading roller 29 may be rotationally driven by a servo motor separate from the servo motor 37 with a speed reducer.

  Between the left and right body panels, as in the rotary die cutter of the previous embodiment, the front side in the feed direction of the long sheet S with respect to the plate cylinder 31 and the anvil roller 32 (left side in FIG. 5) ) And a dimensioning feed roller (not shown) whose axes are parallel to each other and are paired with each other, and at the back side (right side in FIG. 5) in the sheet feeding direction with respect to the plate cylinder 31 and the anvil roller 32, A pair of drawing rollers (not shown) whose axes are parallel to each other are arranged, and each of these comprises a driving roller and a nip roller that presses the long sheet S against the driving roller if the surface is made of rubber or the like having a high friction coefficient. Each drive roller is rotated by a servo motor (not shown) similar to the servo motor 37 with a speed reducer that rotationally drives the plate cylinder 31. Is moving, the operation of the servo motor for driving rotation thereof plate cylinder 31 and the drive roller, respectively, are controlled by a common conventional servo controller (not shown).

  In the rotary printing machine of this embodiment, first, the knob of the ink discharge roller 26 is turned by hand, for example, and the ink in the ink fountain 25 is evenly applied over the entire width of the outer surface of the ink discharge roller 26. Then, the ink on the outer peripheral surface of the ink discharge roller 26 is transferred onto the outer peripheral surface of the upper ink kneading roller 29 via the ink calling roller 27 and the ink transfer roller 28, and the upper ink kneading roller 29 and the two side portions are transferred. While kneading ink with the ink kneading roller 30, the ink is applied onto the printing plate 33 of the plate cylinder 31.

  Next, the long sheet S is sandwiched between a driving roller and a nip roller of a dimension feeding roller and fed out from a long sheet roll (not shown), and as shown in FIG. 5, in the gap between the plate cylinder 31 and the anvil roller 32. While feeding from the front side in the sheet feeding direction, the back side in the sheet feeding direction is sandwiched between the driving roller and the nip roller of the drawing roller and pulled out from the gap between the plate cylinder 31 and the anvil roller 32, and the plate cylinder 31 and the anvil roller 32, the printing plate 33 of the plate cylinder 31 is printed on the long sheet S from the rotation direction front end 33a to the rotation direction tail end 33b (see FIG. 7) with a gap between the anvil roller 32. (Hereinafter simply referred to as “printing”) while passing through a position facing downward, which is a rotational position, the long sheet S is printed on the printing plate. 3 and the anvil roller 32, and a label having a predetermined contour shape is applied to a predetermined printing area on the surface (upper surface in the drawing) of the long sheet S facing the plate cylinder 31 with the printing plate 33 of the plate cylinder 31. Print.

  Then, the rotational direction tail end 33b of the plate cylinder 31 as a predetermined portion of the printing plate 33 reaches the position facing directly below that is the position of the gap between the plate cylinder 31 and the anvil roller 32. When the rotation angle of 33b becomes a predetermined angle, that is, when the rotation direction tail end 33b of the printing plate 33 comes to the front by a predetermined rotation angle, the rotation direction front end of the notch 36a of the cam plate 36 moves to the roller 35. From the point of time when the contact position is reached, the roller support member 34 and then both arms 34a and 34c swing as indicated by θ in FIG. 7, and the gap between the plate cylinder 31 and the anvil roller 32 is large. The size is changed to be larger than the size when printing on the printing plate 33.

  Thereby, after printing of the label with the printing plate 33 on the predetermined area of the surface of the long sheet S, the tail end 33b in the rotation direction of the printing plate 33 is between the plate cylinder 31 and the anvil roller 32. Since the printing plate 33 and the anvil roller 32 of the plate cylinder 31 do not sandwich the long sheet S before reaching the position of the gap, the servo controller keeps the rotation speed of the plate cylinder 31 constant. Therefore, the servo motor that drives the driving roller of the dimensioning feed roller and the drawing roller can be decelerated to reduce the rotational speed of the dimensioning feeding roller and the drawing roller in the feed direction from the earlier stage than before, and therefore As shown in FIG. 8, as in the case of the punching process shown in FIG. In contrast to case by reducing the interval W of the area for receiving a printed label to the long sheet S it is possible to eliminate unnecessary long sheet S.

  Further, the rotational direction tip 33a of the plate cylinder 31 as another predetermined portion of the printing plate 33 reaches or reaches the position of the gap between the plate cylinder 31 and the anvil roller 32. When the rotation angle reaches a predetermined angle, that is, when the rotation direction leading end 33a of the printing plate 33 comes to the front by a predetermined rotation angle or passes by the predetermined rotation angle, after the rotation direction of the notch 36a of the cam plate 36 is reached. Ends of the roller support member 34 and, therefore, both arms 34a and 34c are returned to the original positions shown in FIG. 5, and the size of the gap between the plate cylinder 31 and the anvil roller 32 is set to the original printing size. Change it back.

  Thereby, before the printing of the label of the predetermined contour shape on the printing plate 33 to the next predetermined printing area on the surface of the long sheet S starts, the rotation direction tip 33a of the printing plate 33 is connected to the plate cylinder 31 and the anvil. When the position of the gap between the rollers 32 is reached or after that, the long sheet S is sandwiched between the printing plate 33 of the plate cylinder 31 and the anvil roller 32, and the dimensions are determined before the beginning of the sandwiching. The rotation speed of the plate cylinder 31 is kept constant by increasing the speed of the servo motor that drives the drive roller of the feed roller and the draw roller and returning the rotation speed in the feed direction of the dimension feed roller and the draw roller to the original speed. In this state, the printing speed of the next sheet L on the printing plate 33 can be started by making the feeding speed of the long sheet S coincide with the peripheral speed.

  After that, the long sheet S drawn out from the gap between the plate cylinder 31 and the anvil roller 32 by the drawing roller is wound up in a roll shape by a winder (not shown).

  Therefore, according to the rotary printing machine of this embodiment, the long sheet S can be formed in the same manner as in the previous example shown in FIG. Since it is possible to reduce the waste of the long sheet S by reducing the interval (so-called dove width) W of the printing area of the label L, setting and adjustment of the pitch P between the printing areas of the label L processed into the long sheet S Since the printing time for each time can be shortened, the printing speed of the long sheet S can be increased as compared with the conventional technique.

  Furthermore, according to the rotary printing machine of this embodiment, the peripheral length of one or a plurality of printing plates 33 arranged side by side is almost equal to the peripheral length of the outer peripheral surface of the plate cylinder 31, and the outer peripheral surface of the plate cylinder 31 is Even when there is little or no gap between the leading end 33a and the tail end 33b in the rotational direction of the printing plate 33, the interval between the printing regions of the long sheet S (so-called dove width) W is reduced to make it long. The waste of the sheet S can be eliminated.

  Furthermore, according to the rotary type printing machine of this embodiment, the roller gap changing means supports the anvil roller 32 which is one of the anvil roller 32 and the plate cylinder 31 so as to be movable forward and backward relative to the plate cylinder 31 which is the other. A roller support member 34, a cam plate 36 provided on the plate cylinder 31, having a cylindrical shape coaxial with the plate cylinder 31 and having a recess 36 a formed in a part of the circumferential direction, and the anvil roller 32. Is provided on a roller support member 34 that supports the cam plate 36 and abuts against the cam surface of the cam plate 36. The anvil roller 32 moves forward and backward with respect to the plate cylinder 31 by moving in the radial direction of the cam surface along the notch 36 a of the cam surface. Therefore, the setting state and adjustment of the printing pitch P can be easily performed by changing the position and shape of the notch 36a on the cam surface. It is possible to optimize the state.

  According to the rotary type printing machine of this embodiment, the roller support member 34 has an L-shape and is pivotally supported so that the bent portion of the L-shape can be swung. Since the anvil roller 32 is supported and the roller 35 is supported by the other L-shaped arm 34c, the roller movable support means can be configured with a simple and inexpensive configuration.

  According to the rotary type printing machine of this embodiment, the support shaft 34 b is fixed by the fixing screw 39 shown in FIG. 5 provided on the side frame 22, and the roller support member 34 is attached to the plate cylinder 31 and the anvil roller 32. A normal continuous printing operation can also be performed by fixing the size of the gap between the two to the size at the time of printing.

  Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the claims. For example, the present invention The rotary processing apparatus can be used for a processing apparatus that performs sheet processing other than punching and printing.

  Thus, according to the rotary processing apparatus of the present invention, the interval between the processing regions of the long sheet (so-called dove width) is reduced without the reverse rotation of the dimension feeding roller and the drawing roller. Since it is possible to eliminate waste, it is possible to easily set and adjust the pitch between regions to be processed into a long sheet, and the processing time for each time can be shortened. It can be faster than.

  Furthermore, according to the rotary type sheet processing apparatus of the present invention, the sheet processing section is larger or the circumference of the processing roller on the outer peripheral surface of the processing roller is such that the peripheral length of the sheet processing section is substantially equal to the peripheral length of the outer peripheral surface of the processing roller. Even if a plurality of sheet processing parts are arranged in the direction, and there is little or no gap between the leading end and tail end in the rotation direction of the sheet processing part on the outer peripheral surface of the processing roller, It is possible to reduce the waste of the long sheet by reducing the interval (so-called dove width) of the processing area.

DESCRIPTION OF SYMBOLS 1 Body panel 2 Stay 3 Side frame 3a Notch 4 Upper frame 5 Gate frame 6 Upper bearing 7 Lower bearing 8 Die roller 9,11 Drive shaft 10 Anvil roller 10a Concavity 12 Servo motor with reduction gear 13 Output shaft 14 Pressurization Screw 15 Pressure knob 16 Pressure fixing knob 17 Processing die 17a Tip 17b Tail 18 Gear 19 Dimension feed roller 19a, 20a Drive roller 19b, 20b Nip roller 20 Pull-out roller 21 Stay 22 Side frame 22a Long hole 23 Upper frame 24 Gate type frame 25 Ink fountain 25a Doctor blade 25b Adjustment screw 26 Ink take-out roller 27 Ink call roller 27a, 28a, 29a, 30a, 32a, 34b Support shaft 28 Ink transfer roller 29 Partial ink kneading roller 30 Side ink kneading roller 31 Plate cylinder 31a Drive shaft 32 Anvil roller 33 Printing plate 33a Front end 33b Tail end 34 Roller support member 34a One arm 34c The other arm 35 Roller 36 Cam plate 36a Notch 37 Reduction gear Servo motor with 38 Output shaft 39 Fixing screw A Adhesive sheet B Base sheet L Label P Pitch S Long sheet W Spacing

Claims (4)

A processing roller having an outer peripheral surface provided with a sheet processing portion in a predetermined range in the circumferential direction and having an axis positioned parallel to each other, an anvil roller having a smooth outer peripheral surface, and the processing roller and the anvil roller. Dimensional feed rollers arranged on the near side in the sheet feed direction and whose axes are parallel to each other and paired with each other, and arranged mutually on the back side in the sheet feed direction with respect to the processing roller and the anvil roller And a pair of drawer rollers positioned in parallel,
The long sheet is sandwiched between the pair of dimension-feeding rollers and the pair of pull-out rollers, and sent through the gap between the processing roller and the anvil roller, and the feeding direction of the processing roller and the anvil roller. In a rotary sheet processing apparatus that repeatedly processes a long sheet with the sheet processing unit while rotating and holding the long sheet between the sheet processing unit of the processing roller and the anvil roller with rotation. ,
Roller gap changing means for changing a size of the gap based on a rotation angle of a predetermined portion of the sheet processing portion of the processing roller with respect to a position of the gap between the processing roller and the anvil roller. A rotary-type sheet processing device.   2. The rotary type according to claim 1, wherein the roller gap changing means is a recess formed in a part of the outer circumferential surface of the anvil roller over the entire length in the axial direction of the outer circumferential surface. Sheet processing equipment. The roller gap changing means is
Roller movable support means for supporting one of the anvil roller and the processing roller so as to be movable back and forth with respect to the other roller;
A cam surface that is provided on the other roller, has a cylindrical shape coaxial with the other roller, and has a recess in a part of the circumferential direction;
A cam follower that is provided on the one roller and abuts against the cam surface and moves in the radial direction of the cam surface along the cam surface irregularities to move the one roller forward and backward relative to the other roller; ,
The rotary sheet processing apparatus according to claim 1, wherein The roller movable support means has an L-shaped and a roller support member that is pivotally supported so that the L-shaped bent portion can swing.
The roller support member is configured to support the one roller with one arm of the L shape and support the cam follower with the other arm of the L shape. The rotary-type sheet processing apparatus as described.

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